AN7818中文资料
AN1781中文资料
POWER-SUPPLY CIRCUITS Nov 11, 2002 Graphics Chip Supply Delivers 1.65V at 26A Game boxes are using more powerful processors to provide more realisticand complex graphics and games. As the processor power increases, sodoes the current required to power the parts. The MAX1954 in theapplication pictured below delivers 1.65V @ 26A from a 5V input.Game boxes are using more powerful processors to provide more realistic and complex graphics and games. As the processor power increases, so does the current required to power the parts. The MAX1954 in the application pictured below delivers 1.65V @ 26A from a 5V input. The MAX1954 is a 300kHz current-mode step-down controller. The MOSFET drivers are strong enough to handle 100nC gate charge. Given the nominal input and output voltages, the duty cycle is 33% and the on-resistance of the high- and low-side FETs are skewed accordingly. Two IRF7811W with 12m on-resistance each are used for the high-side and two IRF7822 with6.5m on-resistance each are used for the low-side. Two IRF7811W in parallel have better switching characteristics than one IRF7822.Seven 22uF/6V X5R ceramic capacitors are used for input bypassing to handle the 12.5Arms input ripple current. At 5V input, ceramic capacitors are more cost effective and smaller than electrolytics. In addition, the MAX1954 senses current by looking at the voltage across the high-side FET on-resistance and ceramic bypass capacitors provide a better reference for the current-sense circuitry. A 2.2nF ceramic capacitor is included drain-to-source across each low-side FET to damp the parasitic ringing of the bond-wire inductance with the drain capacitance. This ringing can affect the current-sense circuitry.The pulse engineering inductor is a custom part designed to handle 70A peak current without saturating. The MAX1954 uses a "valley" current limit based on the on-resistance of the low-side FET. The current limit is 200mV divided by the low-side FET on-resistance (3.3m) plus the inductor ramp current (10A) which equals 70A. A 0.5uH/70A inductor is not readily available and a custom design is required to provide short-circuit protection.The Sanyo output capacitors provide a good balance among ESR, ripple current rating, and cost. The capacitance is large enough for the output ripple to be dominated by the ESR. The application does not require low-profile.The catch-diode, D2, limits the negative voltage of the LX node when the high-side FET turns off. In conjunction with R4, this controls the voltage on the boost capacitor, C8, at high-line andmaximum output current. Without D2 and R4, the voltage on C8 can BST to LX absolute maximum voltage of 6V.The MAX1954 delivers 1.65V @ 26A from a 5V input. The efficiency is 86% at 26A and 90% at 10A. The output ripple is 25mVpp.Table 1.Vin Iin Vout Iout Efficiency5.00810.086 1.666304.490511.13 1.6547260.8615.01259.95 1.6530260.8625.5099.04 1.6513260.86225mVppFigure 1.The MAX1954 Bill of Materials: 4.5V to 5.5V Input, 1.65V @ 26A Output Designation Qty DescriptionC114.7uF 10V X5R ceramic capacitor (1206) Taiyo Yuden LMK316BJ475MLC2-C8722uF 6V X5R ceramic capacitor (1210) Taiyo Yuden JMK325BJ226MNC910.22uF ceramic capacitor (0603)C10-C1341000uF 4V aluminum electrolytic capacitor Sanyo 4MV1000EXRC14110uF 10V X5R ceramic capacitor (1210) Taiyo Yuden LMK325BJ106MNC1511nF ceramic capacitor (0603) Kemet C0603C102K8RACC161100pF ceramic capacitor (0603) Kemet C0603C101K5GACC17, C1822.2nF ceramic capacitor (0603) Kemet C0603C222K8RACD11100mA 30V Schottky diode Central Semi CMPSH-3 L110.5uH 30A Inductor Pulse Engineering PA0453N1, N2212m Ohm 30V N-ch MOSFET (SO-8) International Rectifier IRF7811WN3, N426.5m Ohm 30V N-ch MOSFET (SO-8) International Rectifier IRF7822 or Siliconix Si4842DYQ11NPN Transistor (SOT-23) Central Semi CMPT3904R118.87k Ohm 1% resistor (0603)R218.25k Ohm 1% resistor (0603)R31270k Ohm 5% resistor (0603)R41 1 Ohm 5% resistor (0603)R5, R6247k Ohm 5% resistor (0603)U11MAX1954EUB (10-uMAX)November 2002More InformationMAX1954:QuickView-- Full (PDF) Data Sheet。
L7818C中文资料
Figure 2: Schematic Diagram
2/34
L7800 SERIES
Figure 3: Connection Diagram (top view)
TO-220 (Any Type)
TO-220FP/TO-220FM
D2PAK (Any Type)
TO-3
Table 3: Order Codes
TO-220
TO-220FP TO-220FM
D2PAK
TO-3
Figure 1: Schematic Diagram
November 2004
Rev. 12
1/34
L7800 SERIES
Table 1: Absolute Maximum Ratings
Symbol VI IO Ptot Tstg Top DC Input Voltage Output Current Power Dissipation Storage Temperature Range Operating Junction Temperature for L7800 Range for L7800C Parameter for VO= 5 to 18V for VO= 20, 24V Value 35 40 Internally Limited Internally Limited -65 to 150 -55 to 150 0 to 150 °C °C Unit V
TYPE L7805 L7805C L7852C L7806 L7806C L7808 L7808C L7885C L7809C L7810C L7812 L7812C L7815 L7815C L7818 L7818C L7820 L7820C L7824 L7824C TO-220 (A Type) TO-220 (C Type) TO-220 (E Type) D2PAK (A Type) (*) D2PAK (C Type) (T & R) TO-220FP TO-220FM TO-3 L7805T L7805CT L7852CT L7806T L7806CT L7808T L7808CT L7885CT L7809CT L7812T L7812CT L7815T L7815CT L7818T L7818CT L7820T L7820CT L7824T L7824CT
ADS7818
ADS7818串行转换器芯片资料1.1、ads7818 引脚结构图图1.1、ADS引脚排列图表1.1、ADS7818引脚说明1.2、对参考电压的说明：使用内部参考电压时：模拟输入电压范围：GND－200mV~VCC+200mV使用外部参考电压时：FS（Full Scale）满刻度模拟输入电压＝2V REF如：外部参考电压的范围为 2.0V~ 2.55V, 模拟输入电压（+IN）的范围为4.0V ~ 5.1V.。
当V REF ＝ 2.048V时，模拟输入电压+IN的范围为0V to 4.095V（即1mV/ LSB）1.3、ADS7818的一种应用电路图1.2、ADS7818与单片机接口1.3.1、工作时序：要使上述ADS7818的应用电路工作，单片机加到它的引脚上的信号必须满足如下工作时序图：图1.3ADS7818工作时序1.3.2时序说明：从工作时序图可以看出，对于每一次模拟/数字转换过程首先应该将ADS7818的转换信号输入引脚CONV置为低电平。
这个过程产生的下跳边沿将触发采样到保持的转换。
这个转换与时钟信号无关。
在完成触发采样到保持的转换以后，引脚CONV可以立刻置为高电平，也可以等一会再置为高电平。
从第2个串行时钟开始，在时钟的上升边沿转换结果移出ADS1718，因此至少需要13个时钟脉冲。
移出的数据顺序为高位在前、低位在后。
全部数据移出之后，时钟可以继续存在，也可以停止。
如果时钟停止，时钟输入引脚可以保持高电平，也可以保持低电平。
ADS7818的采样时间为350ns。
时钟的最高频率为8MHz，时钟的高电平和低电平都至少要维持50ns。
如果采用AT89S51来控制ADS7818，采样时间和最高时钟频率的要求都可以满足。
这里需要注意的是，时钟还必须大于200KHz的最低频率，最低频率由片内的保持电容上电荷的放电情况决定。
1.4、驱动程序#include<AT89X51.h>#include<INTRINS.H>sbit ADCON =P1^0;sbit ADDATA = P1^1;sbit ADCLK = P1^2; /*根据硬件连线定义标记符号*/unsigned int ADConv(){ unsigned char i,ADV alue=0;ADCON=0; //产生的下跳边沿,启动AD转换_nop_( ); //延时给ADS7818以启动转换响应时间_nop_( );ADCLK=1; //第一个时钟信号_nop_( ); //延时以使高电平维持50ns以上，低电平同理_nop_( );ADCLK=0;_nop_( );_nop_( );ADCLK=1; //在第2个时钟的上升沿将转换结果移出ADS7818_nop_( );_nop_( );for(i=0;i<12;i++) //准备送后12个时钟脉冲{ if (ADDATA)ADValue|=0x001; //末位置1ADValue=ADV alue<<1; //左移1位ADCLK=0;_nop_( );_nop_( );ADCLK=1;_nop_( );_nop_( );}ADCON=1; //CONV引脚电平拉高，为一下次转换作准备ADCLK=0; //本次转换已完成，拉低CLK端，也可以拉高ADDA TA=1; //拉高ADDATA端，回到初始状态return(ADValue); //返回转换结果}。
KA7818中文资料
Rev. 1.0.0Features•Output Current up to 1A •Output V oltages of 5, 6, 8, 9, 10, 12, 15, 18, 24V•Thermal Overload Protection •Short Circuit Protection•Output Transistor Safe Operating Area ProtectionDescriptionThe KA78XX/KA78XXA series of three-terminal positive regulator are available in the TO-220/D-PAK package and with several fixed output voltages, making them useful in a wide range of applications. Each type employs internalcurrent limiting, thermal shut down and safe operating area protection, making it essentially indestructible. If adequate heat sinking is provided, they can deliver over 1A output current. Although designed primarily as fixed voltage regulators, these devices can be used with external components to obtain adjustable voltages and currents.TO-220D-PAK1. Input2. GND3. Output11Internal Block DigramKA78XX/KA78XXA3-Terminal 1A Positive Voltage RegulatorKA78XX/KA78XXAAbsolute Maximum RatingsElectrical Characteristics (KA7805/KA7805R)(Refer to test circuit ,0°C < T J < 125°C, I O = 500mA, V I =10V, C I = 0.33µF, C O =0.1µF, unless otherwise specified)Note:1. Load and line regulation are specified at constant junction temperature. Changes in V o due to heating effects must be takeninto account separately. Pulse testing with low duty is used.ParameterSymbol Value Unit Input Voltage (for V O = 5V to 18V)(for V O = 24V)V I V I 3540V V Thermal Resistance Junction-Cases (TO-220)R θJC 5°C/WThermal Resistance Junction-Air (TO-220)R θJA 65°C/WOperating Temperature Range (KA78XX/A/R)T OPR 0 ~ +125°C Storage Temperature RangeT STG-65 ~ +150°CParameterSymbolConditionsKA7805UnitMin.Typ.Max.Output VoltageV OT J =+25 o C4.85.0 5.25.0mA ≤Io ≤1.0A, P O ≤15W V I = 7V to 20V 4.75 5.0 5.25 V Line Regulation (Note1)Regline T J =+25 o C V O = 7V to 25V - 4.0100mV V I = 8V to 12V - 1.650Load Regulation (Note1)Regload T J =+25 o C I O = 5.0mA to1.5A -9100mV I O =250mA to 750mA -450Quiescent Current I Q T J =+25 o C - 5.08.0mA Quiescent Current Change ∆I Q I O = 5mA to 1.0A -0.030.5mA V I = 7V to 25V -0.3 1.3Output Voltage Drift ∆V O /∆T I O = 5mA--0.8-mV/ o C Output Noise Voltage V N f = 10Hz to 100KHz, T A =+25 o C -42-µV/V O Ripple Rejection RR f = 120HzV O = 8V to 18V 6273-dB Dropout Voltage V Drop I O = 1A, T J =+25 o C -2-V Output Resistance r O f = 1KHz-15-m ΩShort Circuit Current I SC V I = 35V, T A =+25 o C -230-mA Peak CurrentI PKT J =+25 o C- 2.2-AKA78XX/KA78XXAElectrical Characteristics (KA7806/KA7806R)(Refer to test circuit ,0°C < T J < 125°C, I O = 500mA, V I =11V, C I = 0.33µF, C O =0.1µF, unless otherwise specified)Note:1. Load and line regulation are specified at constant junction temperature. Changes in V O due to heating effects must be takeninto account separately. Pulse testing with low duty is used.ParameterSymbolConditionsKA7806UnitMin.Typ.Max.Output VoltageV OT J =+25 o C5.756.0 6.255.0mA ≤I O ≤1.0A, P O ≤15W V I = 8.0V to 21V 5.7 6.0 6.3 V Line Regulation (Note1)Regline T J =+25 o C V I = 8V to 25V -5120mV V I = 9V to 13V - 1.560Load Regulation (Note1)Regload T J =+25 o C I O =5mA to 1.5A -9120mV I O =250mA to750mA -360Quiescent Current I Q T J =+25 o C - 5.08.0mA Quiescent Current Change ∆I Q I O = 5mA to 1A --0.5mA V I = 8V to 25V -- 1.3Output Voltage Drift ∆V O /∆T I O = 5mA--0.8-mV/ o C Output Noise Voltage V N f = 10Hz to 100KHz, T A =+25 o C -45-µV/Vo Ripple Rejection RR f = 120HzV I = 9V to 19V 5975-dB Dropout Voltage V Drop I O = 1A, T J =+25 o C -2-V Output Resistance r O f = 1KHz-19-m ΩShort Circuit Current I SC V I = 35V, T A =+25 o C -250-mA Peak CurrentI PKT J =+25 o C- 2.2-AKA78XX/KA78XXAElectrical Characteristics (KA7808/KA7808R)(Refer to test circuit ,0°C < T J < 125°C, I O = 500mA, V I =14V, C I = 0.33µF, C O =0.1µF, unless otherwise specified)Note:1. Load and line regulation are specified at constant junction temperature. Changes in V O due to heating effects must be takeninto account separately. Pulse testing with low duty is used.ParameterSymbolConditionsKA7808UnitMin.Typ.Max.Output VoltageV OT J =+25 o C7.78.08.35.0mA ≤ I O ≤1.0A, P O ≤15W V I = 10.5V to 23V 7.68.08.4 V Line Regulation (Note1)ReglineT J =+25 o C V I = 10.5V to 25V - 5.0160mV V I = 11.5V to 17V - 2.080Load Regulation (Note1)Regload T J =+25 o C I O = 5.0mA to 1.5A-10160mV I O = 250mA to 750mA - 5.080Quiescent Current I Q T J =+25 o C - 5.08.0mA Quiescent Current Change ∆I Q I O = 5mA to 1.0A -0.050.5mA V I = 10.5A to 25V -0.5 1.0Output Voltage Drift ∆V O /∆T I O = 5mA--0.8-mV/ o C Output Noise Voltage V N f = 10Hz to 100KHz, T A =+25 o C -52-µV/Vo Ripple Rejection RR f = 120Hz, V I = 11.5V to 21.5V 5673-dB Dropout Voltage V Drop I O = 1A, T J =+25 o C -2-V Output Resistance r O f = 1KHz-17-m ΩShort Circuit Current I SC V I = 35V, T A =+25 o C -230-mA Peak CurrentI PKT J =+25 o C- 2.2-AKA78XX/KA78XXAElectrical Characteristics (KA7809/KA7809R)(Refer to test circuit ,0°C < T J < 125°C, I O = 500mA, V I =15V, C I = 0.33µF, C O =0.1µF, unless otherwise specified)Note:1. Load and line regulation are specified at constant junction temperature. Changes in V O due to heating effects must be takeninto account separately. Pulse testing with low duty is used.ParameterSymbolConditionsKA7809UnitMin.Typ.Max.Output VoltageV OT J =+25 o C8.6599.355.0mA ≤ I O ≤1.0A, P O ≤15W V I = 11.5V to 24V 8.699.4 V Line Regulation (Note1)Regline T J =+25 o C V I = 11.5V to 25V -6180mV V I = 12V to 17V -290Load Regulation (Note1)Regload T J =+25 o C I O = 5mA to 1.5A -12180mV I O = 250mA to 750mA -490Quiescent Current I Q T J =+25 o C - 5.08.0mA Quiescent Current Change ∆I Q I O = 5mA to 1.0A --0.5mA V I = 11.5V to 26V -- 1.3Output Voltage Drift ∆V O /∆T I O = 5mA--1-mV/ o C Output Noise Voltage V N f = 10Hz to 100KHz, T A =+25 o C -58-µV/Vo Ripple Rejection RR f = 120HzV I = 13V to 23V 5671-dB Dropout Voltage V Drop I O = 1A, T J =+25 o C -2-V Output Resistance r O f = 1KHz-17-m ΩShort Circuit Current I SC V I = 35V, T A =+25 o C -250-mA Peak CurrentI PKT J = +25 o C- 2.2-AElectrical Characteristics (KA7810)(Refer to test circuit ,0°C < T J < 125°C, I O = 500mA, V I =16V, C I = 0.33µF, C O =0.1µF, unless otherwise specified)Note:1. Load and line regulation are specified at constant junction temperature. Changes in V O due to heating effects must be takeninto account separately. Pulse testing with low duty is used.ParameterSymbolConditionsKA7810UnitMin.Typ.Max.Output VoltageV OT J =+25 o C9.61010.45.0mA ≤ I O ≤ 1.0A, P O ≤ 15W V I = 12.5V to 25V 9.51010.5 V Line Regulation (Note1)Regline T J =+25 o C V I = 12.5V to 25V -10200mV V I = 13V to 25V -3100Load Regulation (Note1)Regload T J =+25 o C I O = 5mA to 1.5A -12200mV I O = 250mA to 750mA -4400Quiescent Current I Q T J =+25 o C - 5.18.0mA Quiescent Current Change ∆I Q I O = 5mA to 1.0A --0.5mA V I = 12.5V to 29V -- 1.0Output Voltage Drift ∆V O /∆T I O = 5mA--1-mV/ o C Output Noise Voltage V N f = 10Hz to 100KHz, T A =+25 o C -58-µV/Vo Ripple Rejection RR f = 120HzV I = 13V to 23V 5671-dB Dropout Voltage V Drop I O = 1A, T J =+25 o C -2-V Output Resistance r O f = 1KHz-17-m ΩShort Circuit Current I SC V I = 35V, T A =+25 o C -250-mA Peak CurrentI PKT J =+25 o C- 2.2-AElectrical Characteristics (KA7812/KA7812R)(Refer to test circuit ,0°C < T J < 125°C, I O = 500mA, V I =19V, C I = 0.33µF, C O =0.1µF, unless otherwise specified)Note:1. Load and line regulation are specified at constant junction temperature. Changes in V O due to heating effects must be takeninto account separately. Pulse testing with low duty is used.ParameterSymbolConditionsKA7812/KA7812R UnitMin.Typ.Max.Output VoltageV OT J =+25 o C11.51212.55.0mA ≤ I O ≤1.0A, P O ≤15W V I = 14.5V to 27V 11.41212.6 V Line Regulation (Note1)ReglineT J =+25 o CV I = 14.5V to 30V -10240mV V I = 16V to 22V - 3.0120Load Regulation (Note1)Regload T J =+25 o C I O = 5mA to 1.5A -11240mV I O = 250mA to 750mA - 5.0120Quiescent Current I Q T J =+25 o C - 5.18.0mA Quiescent Current Change ∆I Q I O = 5mA to 1.0A -0.10.5mA V I = 14.5V to 30V -0.5 1.0Output Voltage Drift ∆V O /∆T I O = 5mA--1-mV/ o C Output Noise Voltage V N f = 10Hz to 100KHz, T A =+25 o C -76-µV/Vo Ripple Rejection RR f = 120HzV I = 15V to 25V 5571-dB Dropout Voltage V Drop I O = 1A, T J =+25 o C -2-V Output Resistance r O f = 1KHz-18-m ΩShort Circuit Current I SC V I = 35V, T A =+25 o C -230-mA Peak CurrentI PKT J = +25 o C- 2.2-AKA78XX/KA78XXAElectrical Characteristics (KA7815)(Refer to test circuit ,0°C < T J < 125°C, I O = 500mA, V I =23V, C I = 0.33µF, C O =0.1µF, unless otherwise specified)Note:1. Load and line regulation are specified at constant junction temperature. Changes in V O due to heating effects must be takeninto account separately. Pulse testing with low duty is used.ParameterSymbolConditionsKA7815UnitMin.Typ.Max.Output VoltageV OT J =+25 o C14.41515.65.0mA ≤ I O ≤1.0A, P O ≤15W V I = 17.5V to 30V 14.251515.75 V Line Regulation (Note1)Regline T J =+25 o C V I = 17.5V to 30V -11300mV V I = 20V to 26V -3150Load Regulation (Note1)Regload T J =+25 o C I O = 5mA to 1.5A -12300mV I O = 250mA to 750mA -4150Quiescent Current I Q T J =+25 o C - 5.28.0mA Quiescent Current Change ∆I Q I O = 5mA to 1.0A --0.5mA V I = 17.5V to 30V -- 1.0Output Voltage Drift ∆V O /∆T I O = 5mA--1-mV/ o C Output Noise Voltage V N f = 10Hz to 100KHz, T A =+25 o C -90-µV/Vo Ripple Rejection RR f = 120HzV I = 18.5V to 28.5V 5470-dB Dropout Voltage V Drop I O = 1A, T J =+25 o C -2-V Output Resistance r O f = 1KHz-19-m ΩShort Circuit Current I SC V I = 35V, T A =+25 o C -250-mA Peak CurrentI PKT J =+25 o C- 2.2-AKA78XX/KA78XXAElectrical Characteristics (KA7818)(Refer to test circuit ,0°C < T J < 125°C, I O = 500mA, V I =27V, C I = 0.33µF, C O =0.1µF, unless otherwise specified)Note:1. Load and line regulation are specified at constant junction temperature. Changes in V O due to heating effects must be takeninto account separately. Pulse testing with low duty is used.ParameterSymbolConditionsKA7818UnitMin.Typ.Max.Output VoltageV OT J =+25 o C17.31818.75.0mA ≤ I O ≤1.0A, P O ≤15W V I = 21V to 33V 17.11818.9 V Line Regulation (Note1)Regline T J =+25 o C V I = 21V to 33V -15360mV V I = 24V to 30V -5180Load Regulation (Note1)Regload T J =+25 o C I O = 5mA to 1.5A -15360mV I O = 250mA to 750mA - 5.0180Quiescent Current I Q T J =+25 o C - 5.28.0mA Quiescent Current Change ∆I Q I O = 5mA to 1.0A --0.5mA V I = 21V to 33V --1Output Voltage Drift ∆V O /∆T I O = 5mA--1-mV/ o C Output Noise Voltage V N f = 10Hz to 100KHz, T A =+25 o C -110-µV/Vo Ripple Rejection RR f = 120HzV I = 22V to 32V 5369-dB Dropout Voltage V Drop I O = 1A, T J =+25 o C -2-V Output Resistance r O f = 1KHz-22-m ΩShort Circuit Current I SC V I = 35V, T A =+25 o C -250-mA Peak CurrentI PKT J =+25 o C-2.2-AKA78XX/KA78XXAElectrical Characteristics (KA7824)(Refer to test circuit ,0°C < T J < 125°C, I O = 500mA, V I =33V, C I = 0.33µF, C O =0.1µF, unless otherwise specified)Note:1. Load and line regulation are specified at constant junction temperature. Changes in V O due to heating effects must be takeninto account separately. Pulse testing with low duty is used.ParameterSymbolConditionsKA7824UnitMin.Typ.Max.Output VoltageV OT J =+25 o C2324255.0mA ≤ I O ≤ 1.0A, P O ≤ 15W V I = 27V to 38V 22.82425.25 V Line Regulation (Note1)ReglineT J =+25 o CV I = 27V to 38V -17480mV V I = 30V to 36V -6240Load Regulation (Note1)Regload T J =+25 o C I O = 5mA to 1.5A -15480mV I O = 250mA to 750mA - 5.0240Quiescent Current I Q T J =+25 o C - 5.28.0mA Quiescent Current Change ∆I QI O = 5mA to 1.0A -0.10.5mA V I = 27V to 38V-0.51Output Voltage Drift ∆V O /∆T I O = 5mA --1.5-mV/ o C Output Noise Voltage V N f = 10Hz to 100KHz, T A =+25 o C -60-µV/Vo Ripple Rejection RR f = 120HzV I = 28V to 38V 5067-dB Dropout Voltage V Drop I O = 1A, T J =+25 o C -2-V Output Resistance r O f = 1KHz-28-m ΩShort Circuit Current I SC V I = 35V, T A =+25 o C -230-mA Peak CurrentI PKT J =+25 o C- 2.2-AKA78XX/KA78XXAElectrical Characteristics (KA7805A)(Refer to the test circuits. 0o C < T J < +125 o C, I o =1A, V I = 10V, C I =0.33µF, C O =0.1µF, unless otherwise speci-fied)Note:1. Load and line regulation are specified at constant junction temperature. Change in V O due to heating effects must be takeninto account separately. Pulse testing with low duty is used.ParameterSymbol ConditionsMin.Typ.Max.UnitOutput VoltageV OT J =+25 o C4.955.1V I O = 5mA to 1A, P O ≤ 15W V I = 7.5V to 20V 4.85 5.2Line Regulation (Note1)ReglineV I = 7.5V to 25V I O = 500mA-550mV V I = 8V to 12V -350T J =+25 o CV I = 7.3V to 20V -550V I = 8V to 12V- 1.525Load Regulation (Note1)RegloadT J =+25 o CI O = 5mA to 1.5A -9100mV I O = 5mA to 1A -9100I O = 250mA to 750mA -450Quiescent Current I Q T J =+25 o C - 5.0 6.0mA Quiescent Current Change∆I Q I O = 5mA to 1A--0.5mA V I = 8 V to 25V, I O = 500mA --0.8V I = 7.5V to 20V, T J =+25 o C --0.8Output Voltage Drift ∆V/∆T Io = 5mA--0.8-mV/ o C Output Noise Voltage V N f = 10Hz to 100KHz T A =+25 o C-10-µV/Vo Ripple Rejection RR f = 120Hz, I O = 500mA V I = 8V to 18V -68-dB Dropout Voltage V Drop I O = 1A, T J =+25 o C -2-V Output Resistance r O f = 1KHz-17-m ΩShort Circuit Current I SC V I = 35V, T A =+25 o C -250-mA Peak CurrentI PKT J = +25 o C- 2.2-AKA78XX/KA78XXAElectrical Characteristics (KA7806A)(Refer to the test circuits. 0o C < T J < +125 o C, I o =1A, V I = 11V, C I =0.33µF, C O =0.1µF, unless otherwise speci-fied)Note:1. Load and line regulation are specified at constant junction temperature. Change in V O due to heating effects must be takeninto account separately. Pulse testing with low duty is used.ParameterSymbol ConditionsMin.Typ.Max.UnitOutput VoltageV OT J =+25 o C5.5866.12V I O = 5mA to 1A, P O ≤ 15W V I = 8.6V to 21V 5.766 6.24Line Regulation (Note1)ReglineV I = 8.6V to 25V I O = 500mA-560mV V I = 9V to 13V -360T J =+25 o CV I = 8.3V to 21V -560V I = 9V to 13V- 1.530Load Regulation (Note1)RegloadT J =+25 o CI O = 5mA to 1.5A -9100mV I O = 5mA to 1A -4100I O = 250mA to 750mA - 5.050Quiescent Current I Q T J =+25 o C - 4.3 6.0mA Quiescent Current Change ∆I Q I O = 5mA to 1A--0.5mA V I = 9V to 25V, I O = 500mA --0.8V I = 8.5V to 21V, T J =+25 o C --0.8Output Voltage Drift ∆V/∆T I O = 5mA--0.8-mV/ o C Output Noise Voltage V N f = 10Hz to 100KHz T A =+25 o C-10-µV/Vo Ripple Rejection RR f = 120Hz, I O = 500mA V I = 9V to 19V -65-dB Dropout Voltage V Drop I O = 1A, T J =+25 o C -2-V Output Resistance r O f = 1KHz-17-m ΩShort Circuit Current I SC V I = 35V, T A =+25 o C -250-mA Peak CurrentI PKT J =+25 o C- 2.2-AKA78XX/KA78XXAElectrical Characteristics (KA7808A)(Refer to the test circuits. 0o C < T J < +125 o C, I o =1A, V I = 14V, C I =0.33µF, C O =0.1µF, unless otherwise speci-fied)Note:1. Load and line regulation are specified at constant junction temperature. Change in V O due to heating effects must be takeninto account separately. Pulse testing with low duty is used.ParameterSymbol ConditionsMin.Typ.Max.UnitOutput VoltageV OT J =+25 o C7.8488.16V I O = 5mA to 1A, P O ≤15W V I = 10.6V to 23V 7.788.3Line Regulation (Note1)ReglineV I = 10.6V to 25V I O = 500mA-680mV V I = 11V to 17V -380T J =+25 o CV I = 10.4V to 23V -680V I = 11V to 17V-240Load Regulation (Note1)RegloadT J =+25 o CI O = 5mA to 1.5A -12100mV I O = 5mA to 1A -12100I O = 250mA to 750mA -550Quiescent Current I Q T J =+25 o C - 5.0 6.0mA Quiescent Current Change ∆I Q I O = 5mA to 1A--0.5mA V I = 11V to 25V, I O = 500mA --0.8V I = 10.6V to 23V, T J =+25 o C --0.8Output Voltage Drift ∆V/∆T I O = 5mA--0.8-mV/ o C Output Noise Voltage V N f = 10Hz to 100KHz T A =+25 o C-10-µV/Vo Ripple Rejection RR f = 120Hz, I O = 500mA V I = 11.5V to 21.5V -62-dB Dropout Voltage V Drop I O = 1A, T J =+25 o C -2-V Output Resistance r O f = 1KHz-18-m ΩShort Circuit Current I SC V I = 35V, T A =+25 o C -250-mA Peak CurrentI PKT J =+25 o C- 2.2-AKA78XX/KA78XXAElectrical Characteristics (KA7809A)(Refer to the test circuits. 0o C < T J < +125 o C, I o =1A, V I = 15V, C I =0.33µF, C O =0.1µF, unless otherwise speci-fied)Note:1. Load and line regulation are specified at constant junction temperature. Change in V O due to heating effects must be takeninto account separately. Pulse testing with low duty is used.ParameterSymbolConditionsMin.Typ.Max.UnitOutput VoltageV OT J =+25°C8.829.09.18V I O = 5mA to 1A, P O ≤15W V I = 11.2V to 24V 8.659.09.35Line Regulation (Note1)ReglineV I = 11.7V to 25V I O = 500mA-690mV V I = 12.5V to 19V -445T J =+25°CV I = 11.5V to 24V -690 V I = 12.5V to 19V -245Load Regulation (Note1)RegloadT J =+25°CI O = 5mA to 1.0A -12100mV I O = 5mA to 1.0A -12100I O = 250mA to 750mA -550Quiescent Current I Q T J =+25 °C- 5.0 6.0mA Quiescent Current Change ∆I Q V I = 11.7V to 25V, T J =+25 °C --0.8mA V I = 12V to 25V, I O = 500mA --0.8I O = 5mA to 1.0A --0.5Output Voltage Drift ∆V/∆T I O = 5mA--1.0-mV/ °C Output Noise Voltage V N f = 10Hz to 100KHz T A =+25 °C-10-µV/Vo Ripple Rejection RR f = 120Hz, I O = 500mA V I = 12V to 22V -62-dB Dropout Voltage V Drop I O = 1A, T J =+25 °C - 2.0-V Output Resistance r O f = 1KHz-17-m ΩShort Circuit Current I SC V I = 35V, T A =+25 °C -250-mA Peak CurrentI PKT J =+25°C- 2.2-A(Refer to the test circuits. 0o C < T J < +125 o C, I o =1A, V I = 16V, C I =0.33µF, C O =0.1µF, unless otherwise speci-fied)Note:1. Load and line regulation are specified at constant junction temperature. Change in V O due to heating effects must be takeninto account separately. Pulse testing with low duty is used.ParameterSymbolConditionsMin.Typ.Max.UnitOutput VoltageV OT J =+25°C9.81010.2V I O = 5mA to 1A, P O ≤ 15W V I =12.8V to 25V 9.61010.4Line Regulation (Note1)ReglineV I = 12.8V to 26V I O = 500mA-8100mV V I = 13V to 20V -450 T J =+25 °CV I = 12.5V to 25V -8100 V I = 13V to 20V -350Load Regulation (Note1)RegloadT J =+25 °CI O = 5mA to 1.5A -12100mV I O = 5mA to 1.0A -12100 I O = 250mA to 750mA -550Quiescent Current I Q T J =+25 °C- 5.0 6.0mA Quiescent Current Change ∆I QV I = 13V to 26V, T J =+25 °C --0.5mA V I = 12.8V to 25V, I O = 500mA --0.8 I O = 5mA to 1.0A--0.5Output Voltage Drift ∆V/∆T I O = 5mA --1.0-mV/ °C Output Noise Voltage V N f = 10Hz to 100KHz T A =+25 °C-10-µV/Vo Ripple Rejection RR f = 120Hz, I O = 500mA V I = 14V to 24V -62-dB Dropout Voltage V Drop I O = 1A, T J =+25°C - 2.0-V Output Resistance r O f = 1KHz-17-m ΩShort Circuit Current I SC V I = 35V, T A =+25 °C -250-mA Peak CurrentI PKT J =+25 °C- 2.2-A(Refer to the test circuits. 0o C < T J < +125 o C, I o =1A, V I = 19V, C I =0.33µF, C O =0.1µF, unless otherwise speci-fied)Note:1. Load and line regulation are specified at constant junction temperature. Change in V O due to heating effects must be takeninto account separately. Pulse testing with low duty is used.ParameterSymbol ConditionsMin.Typ.Max.UnitOutput VoltageV OT J =+25 °C11.751212.25V I O = 5mA to 1A, P O ≤15W V I = 14.8V to 27V 11.51212.5Line Regulation (Note1)ReglineV I = 14.8V to 30V I O = 500mA-10120mV V I = 16V to 22V -4120 T J =+25 °CV I = 14.5V to 27V -10120 V I = 16V to 22V-360Load Regulation (Note1)RegloadT J =+25 °CI O = 5mA to 1.5A -12100mV I O = 5mA to 1.0A -12100 I O = 250mA to 750mA -550Quiescent Current I Q T J =+25°C- 5.16.0mA Quiescent Current Change ∆I QV I = 15V to 30V, T J =+25 °C -0.8mA V I = 14V to 27V, I O = 500mA -0.8 I O = 5mA to 1.0A-0.5Output Voltage Drift ∆V/∆T I O = 5mA --1.0-mV/°C Output Noise Voltage V N f = 10Hz to 100KHz T A =+25°C-10-µV/Vo Ripple Rejection RR f = 120Hz, I O = 500mA V I = 14V to 24V -60-dB Dropout Voltage V Drop I O = 1A, T J =+25°C - 2.0-V Output Resistance r O f = 1KHz-18-m ΩShort Circuit Current I SC V I = 35V, T A =+25 °C -250-mA Peak CurrentI PKT J =+25 °C- 2.2-AKA78XX/KA78XXAElectrical Characteristics (KA7815A)(Refer to the test circuits. 0o C < T J < +125 o C, I o =1A, V I =23V, C I =0.33µF, C O =0.1µF, unless otherwise speci-fied)Note:1. Load and line regulation are specified at constant junction temperature. Change in V O due to heating effects must be takeninto account separately. Pulse testing with low duty is used.ParameterSymbol ConditionsMin.Typ.Max.UnitOutput VoltageV OT J =+25 °C14.71515.3V I O = 5mA to 1A, P O ≤15W V I = 17.7V to 30V 14.41515.6Line Regulation (Note1)ReglineV I = 17.9V to 30V I O = 500mA-10150mV V I = 20V to 26V -5150 T J =+25°CV I = 17.5V to 30V -11150 V I = 20V to 26V-375Load Regulation (Note1)RegloadT J =+25 °CI O = 5mA to 1.5A -12100mV I O = 5mA to 1.0A -12100 I O = 250mA to 750mA -550Quiescent Current I Q T J =+25 °C- 5.2 6.0mA Quiescent Current Change ∆I QV I = 17.5V to 30V, T J =+25 °C --0.8mA V I = 17.5V to 30V, I O = 500mA --0.8 I O = 5mA to 1.0A--0.5Output Voltage Drift ∆V/∆T I O = 5mA --1.0-mV/°C Output Noise Voltage V N f = 10Hz to 100KHz T A =+25 °C-10-µV/Vo Ripple Rejection RR f = 120Hz, I O = 500mA V I = 18.5V to 28.5V -58-dB Dropout Voltage V Drop I O = 1A, T J =+25 °C - 2.0-V Output Resistance r O f = 1KHz-19-m ΩShort Circuit Current I SC V I = 35V, T A =+25 °C -250-mA Peak CurrentI PKT J =+25°C- 2.2-AKA78XX/KA78XXAElectrical Characteristics (KA7818A)(Refer to the test circuits. 0o C < T J < +125 o C, I o =1A, V I = 27V, C I =0.33µF, C O =0.1µF, unless otherwise speci-fied)Note:1. Load and line regulation are specified at constant junction temperature. Change in V O due to heating effects must be takeninto account separately. Pulse testing with low duty is used.ParameterSymbol ConditionsMin.Typ.Max.UnitOutput VoltageV OT J =+25 °C17.641818.36V I O = 5mA to 1A, P O ≤15W V I = 21V to 33V 17.31818.7Line Regulation (Note1)ReglineV I = 21V to 33V I O = 500mA-15180mV V I = 21V to 33V -5180 T J =+25 °CV I = 20.6V to 33V -15180 V I = 24V to 30V-590Load Regulation (Note1)RegloadT J =+25°CI O = 5mA to 1.5A -15100mV I O = 5mA to 1.0A -15100 I O = 250mA to 750mA -750Quiescent Current I Q T J =+25 °C- 5.2 6.0mA Quiescent Current Change ∆I QV I = 21V to 33V, T J =+25 °C --0.8mA V I = 21V to 33V, I O = 500mA --0.8 I O = 5mA to 1.0A--0.5Output Voltage Drift ∆V/∆T I O = 5mA --1.0-mV/ °C Output Noise Voltage V N f = 10Hz to 100KHz T A =+25°C-10-µV/Vo Ripple Rejection RR f = 120Hz, I O = 500mA V I = 22V to 32V -57-dB Dropout Voltage V Drop I O = 1A, T J =+25°C - 2.0-V Output Resistance r O f = 1KHz-19-m ΩShort Circuit Current I SC V I = 35V, T A =+25°C -250-mA Peak CurrentI PKT J =+25 °C- 2.2-AKA78XX/KA78XXAElectrical Characteristics (KA7824A)(Refer to the test circuits. 0o C < T J < +125 o C, I o =1A, V I = 33V, C I =0.33µF, C O =0.1µF, unless otherwise speci-fied)Note:1. Load and line regulation are specified at constant junction temperature. Change in V O due to heating effects must be takeninto account separately. Pulse testing with low duty is used.ParameterSymbol ConditionsMin.Typ.Max.UnitOutput VoltageV OT J =+25 °C23.52424.5V I O = 5mA to 1A, P O ≤15W V I = 27.3V to 38V 232425Line Regulation (Note1)ReglineV I = 27V to 38V I O = 500mA-18240mV V I = 21V to 33V -6240 T J =+25 °CV I = 26.7V to 38V -18240 V I = 30V to 36V-6120Load Regulation (Note1)RegloadT J =+25 °CI O = 5mA to 1.5A -15100mV I O = 5mA to 1.0A -15100 I O = 250mA to 750mA -750Quiescent Current I Q T J =+25 °C- 5.2 6.0mA Quiescent Current Change ∆I QV I = 27.3V to 38V, T J =+25 °C --0.8mA V I = 27.3V to 38V, I O = 500mA --0.8 I O = 5mA to 1.0A--0.5Output Voltage Drift ∆V/∆T I O = 5mA --1.5-mV/ °C Output Noise Voltage V N f = 10Hz to 100KHz T A = 25 °C-10-µV/Vo Ripple Rejection RR f = 120Hz, I O = 500mA V I = 28V to 38V -54-dB Dropout Voltage V Drop I O = 1A, T J =+25 °C - 2.0-V Output Resistance r O f = 1KHz-20-m ΩShort Circuit Current I SC V I = 35V, T A =+25 °C -250-mA Peak CurrentI PKT J =+25 °C- 2.2-AKA78XX/KA78XXATypical Perfomance CharacteristicsFigure 1.Quiescent Current Figure 3.Output Voltage Figure 2.Peak Output Current Figure 4.Quiescent CurrentITypical ApplicationsInput OutputFigure 5.DC ParametersInput OutputFigure 6.Load RegulationInput OutputFigure 7.Ripple RejectionInput OutputFigure 8.Fixed Output Regulator2122Figure 9.Constant Current RegulatorNotes :(1)To specify an output voltage. substitute voltage value for "XX." A common ground is required between the input and the Outputvoltage. The input voltage must remain typically 2.0V above the output voltage even during the low point on the input ripple voltage.(2)C I is required if regulator is located an appreciable distance from power Supply filter.(3)C O improves stability and transient response.V O = V XX (1+R 2/R 1)+I Q R 2Figure 10.Circuit for Increasing Output VoltageI RI ≥5 I QV O = V XX (1+R 2/R 1)+I Q R 2Figure 11.Adjustable Output Regulator (7 to 30V)InputOutputC ICOInput OutputC IC OI RI 5IQ≥Input OutputC IC O23Figure 12.High Current Voltage RegulatorFigure 13.High Output Current with Short Circuit ProtectionFigure 14.Tracking Voltage RegulatorInputOutputInputOutput24Figure 15.Split Power Supply ( ±15V-1A)Figure 16.Negative Output Voltage CircuitFigure 17.Switching RegulatorInputOutputInput OutputMechanical DimensionsPackageTO-22025Mechancal Dimensions (Continued)PackageD-PAK2627Ordering InformationProduct Number Output Voltage TolerancePackageOperating TemperatureKA7805 / KA7806 ±4%TO-2200 ~ + 125°CKA7808 / KA7809KA7810 KA7812 / KA7815KA7818 / KA7824KA7805A / KA7806A ±2%KA7808A / KA7809A KA7810A / KA7812A KA7815A / KA7818AKA7824A KA7805R / KA7806R ±4%D-PAKKA7808R / KA7809RKA7812R。
三端稳压器78xx79xx系列芯片介绍
三端稳压器78xx79xx系列芯片介绍关键词：电路介绍三端稳压电子产品中常见到的三端稳压集成电路有正电压输出的78 ×× 系列和负电压输出的79××系列。
故名思义，三端IC是指这种稳压用的集成电路只有三条引脚输出，分别是输入端、接地端和输出端。
它的样子象是普通的三极管，TO- 220 的标准封装，也有9013样子的TO-92 封装。
用 78/79系列三端稳压IC 来组成稳压电源所需的外围元件极少，电路内部还有过流、过热及调整管的保护电路，使用起来可靠、方便，而且价格便宜。
该系列集成稳压IC型号中的78或79后面的数字代表该三端集成稳压电路的输出电压，如7806表示输出电压为正6V，7909表示输出电压为负9V。
78/79系列三端稳压IC 有很多电子厂家生产，80年代就有了，通常前缀为生产厂家的代号，如TA7805是东芝的产品，AN7909是松下的产品。
（点击这里，查看有关看前缀识别集成电路的知识）有时在数字78或79后面还有一个M或L，如78M12或79L24，用来区别输出电流和封装形式等，其中78L调系列的最大输出电流为100mA ，78M系列最大输出电流为1A，78系列最大输出电流为1．5A。
它的封装也有多种，详见图。
塑料封装的稳压电路具有安装容易、价格低廉等优点，因此用得比较多。
79系列除了输出电压为负。
引出脚排列不同以外，命名方法、外形等均与78系列的相同。
因为三端固定集成稳压电路的使用方便，电子制作中经常采用，可以用来改装至⒃??奈妊沟缭矗?簿?Ｓ米鞯缱由璞傅墓ぷ鞯缭础５缏吠既缤妓?尽?注意三端集成稳压电路的输入、输出和接地端绝不能接错，不然容易烧坏。
一般三端集成稳压电路的最小输入、输出电压差约为2V，否则不能输出稳定的电压，一般应使电压差保持在4-5V，即经变压器变压，二极管整流，电容器滤波后的电压应比稳压值高一些。
在实际应用中，应在三端集成稳压电路上安装足够大的散热器（当然小功率的条件下不用）。
LM781_datasheet中文资料
ELECTRICAL CHARACTERISTICS ( Ta = 25 C)
(Refer to test circuit, Io = 500mA, Vi = 27V, Ci= 0.33uF, Co=0.1uF unless otherwise specified) Parameter Output Voltage Line Regulation (Note1) Symbol VO Regline Test Conditions VI = 21V to 33V VI = 21V to 33V VI = 24V to 30V Load Regulation (Note1) Quiescent Current Ripple Rejection Dropout Voltage Output Resistance Short Circuit Current Peak Current Regload IQ RR VDrop rO ISC IPK IO = 5.0mA to1.5A IO =250mA to 750mA TJ =+25 oC f = 120Hz, VO = 22V to 32V IO = 1A, TJ =+25 oC f = 1KHz VI = 35V, TA =+25 oC TJ =+25 oC 53 Min 17.46 Typ 18.0 15 5 15 5 5.2 69 2 0.022 250 2.2 Max 18.54 360 mV 180 360 180 8 mA dB V Ω mA A mV Unit V
O
O
ABSOLUTE MAXIMUM RATINGS ( Ta = 25 C)
Parameter Input Voltage Output Voltage Peak Current Operating Temperature Range Storage Temperature Range Symbol VI VO IPK TOPR TSTG Typ 35 18.0 2.2 0~125 -65~150 Unit V V A
LM 7818 中文规格书
说明
Symbol
Parameter
符号 Vo Vo △Vo △Vo Id
参数 Output Voltage 输出电压 Output Voltage 输出电压 Line Regulation
线性调整率 Load Regulation 负载调整率 Quiescent Current 静态电流
ΔIQ
Short Circuit Current Change 短路电流 变化
Io = 5 to 350mA
IO = 5mA Tj = 0 to 125℃ B = 10Hz to 100KHz Vi = 35 V
MIN
Tyb
最小
典型Βιβλιοθήκη 17.317.1Max
最大
18.7
Unit
单位
V
18.9 V
100 mV
360 mV
6 mA
0.5 A
-1.1 100 240
mV/℃ uV mA
ΔIQ
Output Voltage Drift 输出电压漂移
Output Voltage Drift ΔVO/ΔTIO
输出电压漂移
Output Noise Voltage eN
输出噪声电压
Short Circuit Current Isc
短路电流
Test Concitions
测试条件 空载 Io 5 to 350mA,VI =21V to 33V Vi = 24 to 33 v Lo=200mA Vi = 5 Lo 500mA Tj=25℃
三端稳压集成电路 LM7818 中文资料表
DPAK 封装
TO - 220FP 封装
Figure :
Fixed Output Regulator
LM 7818 中文资料
Symbol符号Parameter参 数Test Concitions测试条件MIN最小Tyb典型Max最大Unit单位Vo Output Voltage 输出电压空载17.318.7V Vo Output Voltage 输出电压Io 5 to 350mA,VI =21V to 33V 17.118.9V △Vo Line Regulation 线性调整率Vi = 24 to 33 v Lo=200mA 100mV △Vo Load Regulation 负载调整率Vi = 5 Lo 500mA Tj=25℃360mV Id Quiescent Current 静态电流6mA ΔIQ Short Circuit Current Change短路电流 变化Io = 5 to 350mA 0.5AΔIQ Output Voltage Drift 输出电压漂移ΔVO/ΔTIOOutput Voltage Drift 输出电压漂移IO = 5mA Tj = 0 to 125℃ -1.1mV/℃ eN Output Noise Voltage 输出噪声电压B = 10Hz to 100KHz 100uV IscShort Circuit Current 短路电流Vi = 35 V240mA三端稳压集成电路 LM7818 中文资料表ELECTRICAL CHARACTERISTICS OF L78M18C (refer to the test circuits,Tj=25℃,Vi=26V, 有关 电气 特 征 L78M18C ( 参考 到 这个 测试 电 路，温度=25℃,输入=26V, Io = 350mA, Ci = 0.33uF, Co = 0.1uF, Unless otherwise specifled)负载 = 350mA，输入端电容＝0.33uF，输出端电容＝0.1uF， 除 非 特 殊 说 明L78M ××0.1uF0.33uFVo +ViFigure : Fixed Output Regulator典型电路应用电路图：固定输出（电压）调整器DPAK 封装TO -220FP 封装。
ADE7878中文数据资料
SCLK 上升沿之后的数据保持时间 数据输出下降沿时间
tDHD tDF
数据输出上升沿时间
tDR
SCLK 上升沿时间
tSR
SCLK 下降沿时间
tSF
标准模式
快速模式机 单位
50
ns
400
ns
175
ns
175
ns
5
40
ns
20
ns
5
ns
20
ns
20
ns
20
ns
20
ns
请参考英文数据 ADE7878_PrE.pdf
超出所列的极限参数可能引起器件的永久性损坏。以上给出的仅仅是极限范围，在这样的极 限条件或超出这些条件工作，器件的技术指标将得不到保证。长期将在这种极限条件下工作 还会影响器件的可靠性。 静电警告 ESD(静电放电)敏感的器件，带电的设备和电路板在没有觉察的情况下放 电。尽管这种产品具有独特的静电放电保护电路，但高能量的静电放电仍可能造成 器件的永久性损坏。因此，建议采取适当的静电放电预防措施避免器件性能下降或 功能丧失。
请参考英文数据 ADE7878_PrE.pdf
输入高电平 VINH
2.4
输入低电平 VIHL
0.8
输入电流,Iin
+-3
输入电容 Cin
10
逻辑输出-IRQ0,IRQ1,MISO/HSDA
请参考英文数据 ADE7878_PrE.pdf
mV peak,Max K欧姆 mV max % typ
dB typ dB typ KHz
V max
pF max
mV max K欧姆 ppm/℃ typ ppm/℃ max
V max mV typ
KIA7818AF中文资料
THREE TERMINAL POSITIVE VOLTAGE REGULATORS 5V, 6V, 8V, 9V, 10V, 12V, 15V, 18V, 20V, 24V.FEATURESSuitable for C-MOS, TTL, the Other Digital IC's Power Supply. Internal Thermal Overload Protection.Internal Short Circuit Current Limiting.Output Current in Excess of 1A.Satisfies IEC-65 Specification. (International Electronical Commission).Package is DPAK.MAXIMUM RATINGS (Ta=25)KIA7805AF KIA7815AF KIA7818AFKIA7824AF Power Dissipation (Tc=25)KIA7805AF KIA7824AF-30150-55150INPUTOUTPUTCOMMON (GND)KIA7805AFELECTRICAL CHARACTERISTICS (V IN=10V, I OUT=500mA, 0T j125)=25, I=257.0V V IN25V8.0V V IN12V=255mA I OUT 1.4A250mA I OUT750mA7.0V V IN20V5.0mA I OUT 1.0A, Po15W=25, I OUT=5mAI B7.0V V IN25VV NO Ta=25, 10Hz f100kHz=50mAV rms f=120Hz, 8.0V V IN18V,=50mA, T j=25dB =25=25=5mA, 0T j125mV/KIA7806AFELECTRICAL CHARACTERISTICS (V IN =11V, I OUT =500mA, 0T j 125)=25, I =258.0V V IN25V 9V V IN 13V =255mAI OUT1.4A 250mA I OUT750mA8VV IN21V5.0mA I OUT 1.0A, Po15W=25, I OUT =5mA I B 8VV IN25VV NO Ta=25, 10Hz f 100kHz OUT =50mA V rms f=120Hz, 9VV IN19V,=50mA, T j =25dB =1.0A, T j =25=25=5mA, 0T j 125mV/KIA7808AFELECTRICAL CHARACTERISTICS (V IN=14V, I OUT=500mA, 0T j125)=25, I=2510.5V V IN25V11V V IN17V=255mA I OUT 1.4A250mA I OUT750mA10.5V V IN23V5.0mA I OUT 1.0A, Po15W=25, I OUT=5mAI B10.5V V IN25VV NO Ta=25, 10Hz f100kHz=50mAV rms f=120Hz, 11.5V V IN21.5V,=50mA, T=25dB =25=25=5mA, 0T j125mV/KIA7809AFELECTRICAL CHARACTERISTICS (V IN=15V, I OUT=500mA, 0T j125)=25, I=2511.5V V IN26V13V V IN19V=255mA I OUT 1.4A250mA I OUT750mA11.5V V IN26V5.0mA I OUT 1.0A, Po15W=25, I OUT=5mAI B11.5V V IN26VV NO Ta=25, 10Hz f100kHz=50mAV rms f=120Hz, 12.5V V IN22.5V,=50mA, T=25dB =25=25=5mA, 0T j125mV/KIA7810AFELECTRICAL CHARACTERISTICS (V IN=16V, I OUT=500mA, 0T j125)=25, I=2512.5V V IN27V14V V IN20V=255mA I OUT 1.4A250mA I OUT750mA12.5V V IN25V5.0mA I OUT 1.0A, Po15W=25, I OUT=5mAI B12.5V V IN27VV NO Ta=25, 10Hz f100kHz=50mAV rms f=120Hz, 13.5V V IN23.5V,=50mA, T=25dB =25=25=5mA, 0T j125mV/KIA7812AFELECTRICAL CHARACTERISTICS (V IN=19V, I OUT=500mA, 0T j125)=25, I=2514.5V V IN30V16V V IN22V=255mA I OUT 1.4A250mA I OUT750mA14.5V V IN27V5.0mA I OUT 1.0A, Po15W=25, I OUT=5mAI B14.5V V IN30VV NO Ta=25, 10Hz f100kHz=50mAV rms f=120Hz, 15V V IN25V,=50mA, T j=25dB =25=25=5mA, 0T j125mV/KIA7815AFELECTRICAL CHARACTERISTICS (V IN=23V, I OUT=500mA, 0T j125)=25, I=2517.5V V IN30V20V V IN26V=255mA I OUT 1.4A250mA I OUT750mA17.5V V IN30V5.0mA I OUT 1.0A, Po15W=25, I OUT=5mAI B17.5V V IN30VV NO Ta=25, 10Hz f100kHz=50mAV rms f=120Hz, 18.5V V IN28.5V,=50mA, T=25dB =25=25=5mA, 0T j125mV/KIA7818AFELECTRICAL CHARACTERISTICS (V IN =27V, I OUT =500mA, 0T j 125)=25, I =2521V V IN33V 24V V IN 30V =255mAI OUT1.4A 250mA I OUT750mA21VV IN33V 5.0mA I OUT 1.0A, Po15W=25, I OUT =5mA I B 21VV IN33VV NO Ta=25, 10Hz f 100kHz OUT =50mA V rms f=120Hz, 22VV IN32V,=50mA, T j =25dB =25=25=5mA, 0T j 125mV/KIA7820AFELECTRICAL CHARACTERISTICS (V IN =29V, I OUT =500mA, 0T j125)=25, I =2523VV IN 35V 26V V IN32V=255mAI OUT 1.4A 250mAI OUT750mA23VV IN35V5.0mA I OUT 1.0A, Po 15W=25, I OUT =5mA I B 23VV IN35VV NO Ta=25, 10Hz f100kHzOUT =50mA V rms f=120Hz, 24VV IN 34V,=50mA, T j =25dB =25=25=5mA, 0T j 125mV/KIA7824AFELECTRICAL CHARACTERISTICS (V IN =33V, I OUT =500mA, 0T j 125)=25, I =2527V V IN38V 30V V IN 36V =255mAI OUT1.4A 250mA I OUT750mA27VV IN38V 5.0mA I OUT 1.0A, Po15W=25, I OUT =5mA I B 27VV IN38VV NO Ta=25, 10Hz f 100kHz OUT =50mA V rms f=120Hz, 28VV IN38V,=50mA, T j =25dB =25=25=5mA, 0T j 125mV/NOISE METERV TEST CIRCUIT1/STANDARD APPLICATION CIRCUITAPPLICATION CIRCUITV ININV (a) Voltage boost by use of zener diode(1) VOLTAGE BOOST REGULATOR)R1R2OUT V =V OUT(IC)( 1+V IN(2) CURRENT BOOST REGULATOR(3) When the input voltage is too high, the power dissipation of three terminal regulator increase because of series regulator,so that the junction temperature rises. In such a case, it is recommended to reduce the power dissipation by inserting the power limiting resistor R SD in the input terminal, and to reduce the junction temperature as a result.V INV The power dissipation P D of IC is expressed in the following equation.P D = (V IN '-V OUT )I OUT + V IN 'I BIf V IN ' is reduced below the lowest voltage necessary for the IC, the parasitic oscillation will be caused according to circumstances.In determining the resistance value of R SD , design with margin should be made by making reference to the following equation.V IN - V IN 'R SD <I OUT + IB(4) Connect the input terminal and GND, and the output terminal and GND, by capacitor respectively.The capacitances should be determined experimentally because they depend on printed patterns. In particular, adequate investigation should be made so that there is no problem even at time of high or low temperature.(5) Installation of IC for power supplyFor obtaining high reliability on the heat sink design of the regulator IC, it is generally required to derate more than 20% of maximum junction temperature (T j MAX.) Further, full consideration should be given to the installation of IC to the heat sink.(6) IEC (International Electronical Commission)-65 Specification.(a) IEC (International Electronical Commission)-65 is the standard, parts testing method, machinery and tolls (used in connecting main power directly and indirectly) Which are used at home and general building. The purpose of the above standard is not to breaking out the risk which is related to an electric shock, a heating, a fire and the damage of surrounding parts in the case of normal or abnormal operating. (b) In case temperature is limited by temperature overheating prevention device, fuse or the operation of fuse resistor One must calculate the temperature of PCB substrate in 2 minute. T 110regulatedT=T(The PCB substrate temperature in 2 minute)-Ta(Ambient temperature)(c) GraphAs the territory of the deviant line appear by the heat, as the area is wider, T(The PCB substrate temperature in 2 minute) is becoming high.1502B 04501006I - T RR - I 50030602010OUTR I P P L E R E J E C T I O N R A T I O R R (d B )401003001000403020100.6IN V - I 1.81.20SCB I A SC U R R E N T I (m A )JUNCTION TEMPERATURE T ( C)B jjKIA7805AFV =10V I =0IN OUTOUTINI =5.0mA V =10V KIA7805AFj jO U T JUNCTION TEMPERATURE T ( C)O U T P U T V O L T A G E V (V )V - T 6100504OUT2150OUTPUT CURRENT I (mA)S H O R T C U R R E N T I (A )OUT8050V =10V (5AF)IN=16V (10AF)=33V (24AF)f=120HzK I A7805A FK I A 7810A F K I A 7824A FS C ININPUT VOLTAGE V (V)KIA7805AFDV - T JUNCTION TEMPERATURE T ( C)12350100150D R O P O U T V O L T A GE V (V )j jD I =1A200m AO U TV =2% OF OUTPUT VOLTAGEO1208040AMBIENT TEMPERATURE Ta ( C)DA L L O W AB L E P O W E R D I S S I P A T I O N P (W )30P - Ta D1601215O U T O U T P U T I M P E D A N C E Z (Ω)0.10.05100k10k1k100FREQUENCY f (Hz)0.030.30.5V =10V I =200mA INOUTOUTZ - f THERMAL RESISTANCE J-C 10.4J-A 96.1WITHOUT HEATSINK C/W(KIA7800AF Series)20069Tc=25 C。
AN7805中文资料
Input
Output
Starter
Voltage Reference
+ Error Amp. −
R2 Thermal Protection
R1 2
Common
8.70±0.30
4.20±0.25 3.80±0.25
12.5±0.2 17.0±0.2 26.1±0.2 29.0±0.3
8.7±0.2
(13.6)
2.54 2.54
0.45 +0.2 –0.0 (2.0) (2.5)
10.5±0.3
HSIP003-P-0000
AN78xxF series
10.50±0.30 φ5.30 (4.30) (1.73) φ3.10±0.10
Unit: mm
2.77±0.30
16.70±0.30
17.00±0.25
元器件交易网
Voltage Regulators
AN78xx/AN78xxF Series
3-pin positive output voltage regulator (1 A type)
I Overview
The AN78xx series and the AN78xxF series are 3pin, fixed positive output type monolithic voltage regulators. Stabilized fixed output voltage is obtained from unstable DC input voltage without using any external components. 11 types of fixed output voltage are available; 5V, 6V, 7V, 8V, 9V, 10V, 12V, 15V, 18V, 20V, and 24V. They can be used widely in power circuits with current capacity of up to 1A. AN78xx series
常用集成电路
129 C807U-1355(手机微处理器控制集成
电路)71
130 CA1391E(彩显行振荡集成电路) 72
131 CAT24C16(存储器集成电路)72
132 CAT24C16F(存储器集成电路)72
133 CAT93C46-1(可编程序只读存储器集
成电路) 72
134 CCU-FDTV-06(微处理器控制集成
88 BA6209(双向电机驱动控制集成电路) 49
89 BA6209N(电机双向驱动控制集成
电路)50
90 BA6219(电机双向驱动集成电路)50
91 BA6219B（电机双向驱动控制集成
电路) 50
92 BA6297AFP(伺服驱动集成电路) 50
93 BA6303(FG信号放大/电机控制集成
123 BU4052(多路开关控制集成电路)67
124 BU4053(多路开关控制集成电路)67
125 BU5777F(遥控发射集成电路) 68
126 BU9253FS(混响延迟集成电路)68
127 C807-1354(手机微处理器控制集成
电路)69
128 C807-1355(电话机微处理器控制集成
181 CXA1622M(音频功放集成电路)114
182 CXA1686M(时钟信号发生器集成
电路)114
183 CXA2089Q（音频/视频切换开关集成
电路）115
184 CXA2549M (RF信号处理集成电路）116
185 CXD1866R (DVD/CD-ROM数据解调
集成电路）116
20 AN5192K-A(视频/伴音/解码电路)17
TS7818ICI资料
TS7800I series3-Terminal Fixed Positive Voltage RegulatorPin assignment:1. Input2. Ground3. Output (Heatsink surfaceconnected to Pin 2)Voltage Range 5V to 24V Output Current up to 1.5AGeneral DescriptionThese voltage regulators are monolithic integrated circuits designed as fixed-voltage regulators for a wide variety of applications including local, on-card regulation. These regulators employ internal current limiting, thermal shutdown, and safe-area compensation. With adequate heatsink they can deliver output currents up to 1.5 ampere.Although designed primarily as a fixed voltage regulator, these devices can be used with external components to obtain adjustable voltages and currents.This series is offered in 3-pin TO-220, ITO-220 package.FeaturesOutput current up to 1.5A No external components required Internal thermal overload protection Internal short-circuit current limitingOutput transistor safe-area compensationOutput voltage offered in 2% toleranceOrdering InformationNote: Where xx denotes voltage option. Part No. Operating Temp. Package TS78xxICZ TO-220 TS78xxICI -40 ~ +85o CITO-220Standard ApplicationA common ground is required between the input and the output voltages. The input voltage must remain typically 2.0V above the output voltage even during the low point on theInput ripple voltage. XX = these two digits of the type number indicate voltage.* = Cin is required if regulator is located an appreciable distance from power supply filter.** = Co is not needed for stability; however, it does improvetransient response.Absolute Maximum RatingInput Voltage Vin * 35 V Input VoltageVin ** 40 V Power Dissipation TO-220 TO-220 ITO-220 Without heatsinkPt *** Without heatsink2 15 10 WOperating Junction Temperature Range T J 0 ~ +125 o C Storage Temperature Range T STG-65 ~ +150oCNote : * TS7805 to TS7818 ** TS7824ITO-220TS7805I Electrical Characteristics(Vin=10V, Iout=500mA, 0o C ≤Tj ≤125o C, Cin=0.33uF, Cout=0.1uF; unless otherwise specified.)Parameter Symbol Test Conditions Min Typ Max UnitTj=25o C4.90 55.10 Output voltageVout7.5V ≤Vin ≤20V, 10mA ≤Iout ≤1.5A, PD ≤15W4.80 55.20V7.5V ≤Vin ≤25V -- 3 100 Line Regulation REGline Tj=25o C 8V ≤Vin ≤12V -- 1 5010mA ≤Iout ≤1.5A -- 15 100 Load Regulation REGload Tj=25o C250mA ≤Iout ≤750mA-- 5 50mVQuiescent Current Iq Iout=0, Tj=25o C -- 4.2 8 7.5V ≤Vin ≤25V -- -- 1.3Quiescent Current Change ∆Iq10mA ≤Iout ≤1.5A -- -- 0.5mA Output Noise Voltage Vn 10Hz ≤f ≤100KHz, Tj=25o C-- 40 -- uV Ripple Rejection Ratio RR f=120Hz, 8V ≤Vin ≤18V 6278--dBVoltage DropVdrop Iout=1.0A, Tj=25o C -- 2 -- VOutput Resistance Rout f =1KHz-- 17 -- m Ω Output Short Circuit Current Ios Tj=25o C -- 750 -- mAPeak Output CurrentIo peakTj=25o C-- 2.2 -- A Temperature Coefficient of Output Voltage∆Vout/ ∆Tj Iout =10mA, 0o C ≤Tj ≤125o C-- -0.6 -- mV/oCTS7806I Electrical Characteristics(Vin=11V, Iout=500mA, 0o C ≤Tj ≤125o C, Cin=0.33uF, Cout=0.1uF; unless otherwise specified.)Parameter Symbol Test Conditions Min Typ Max UnitTj=25o C5.88 66.12 Output VoltageVout8.5V ≤Vin ≤21V, 10mA ≤Iout ≤1.5A, PD ≤15W5.76 66.24V8.5V ≤Vin ≤25V -- 5 120 Line Regulation REGline Tj=25o C 9V ≤Vin ≤13V -- 1.5 6010mA ≤Iout ≤1.5A -- 14 120 Load Regulation REGload Tj=25o C250mA ≤Iout ≤750mA -- 4 60mVQuiescent Current Iq Iout=0, Tj=25o C -- 4.3 8 8.5V ≤Vin ≤25V -- -- 1.3 Quiescent Current Change ∆Iq 10mA ≤Iout ≤1.5A -- -- 0.5 mA Output Noise Voltage Vn 10Hz ≤f ≤100KHz, Tj=25o C-- 45 -- uVRipple Rejection Ratio RR f=120Hz, 9V ≤Vin ≤19V 59 75 -- dBVoltage DropVdrop Iout=1.0A, Tj=25o C -- 2 -- VOutput Resistance Rout f =1KHz-- 19 -- m Ω Output Short Circuit Current Ios Tj=25o C -- 550 -- mAPeak Output CurrentIo peakTj=25o C-- 2.2 -- ATemperature Coefficient ofOutput Voltage ∆Vout/ ∆Tj Iout 10mA, 0o C ≤Tj ≤125o C-- -0.7 -- mV/oC z Pulse testing techniques are used to maintain the junction temperature as close to the ambient temperature aspossible, and thermal effects must be taken into account separately.TS7808I Electrical Characteristics(Vin=14V, Iout=500mA, 0o C ≤Tj ≤125o C, Cin=0.33uF, Cout=0.1uF; unless otherwise specified.)Parameter Symbol Test Conditions Min Typ Max UnitTj=25o C7.84 8 8.16 Output VoltageVout10.5V ≤Vin ≤23V,10mA ≤Iout ≤1.5A, PD ≤15W7.68 8 8.32V10.5V ≤Vin ≤25V -- 6 160 Line Regulation REGline Tj=25o C 11V ≤Vin ≤17V -- 2 8010mA ≤Iout ≤1.5A -- 12 160 Load Regulation REGload Tj=25o C250mA ≤Iout ≤750mA -- 4 80mVQuiescent Current Iq Iout=0, Tj=25o C -- 4.3 8 10.5V ≤Vin ≤25V -- -- 1Quiescent Current Change ∆Iq 10mA ≤Iout ≤1.5A -- -- 0.5 mA Output Noise Voltage Vn 10Hz ≤f ≤100KHz, Tj=25o C-- 52 -- uVRipple Rejection Ratio RR f=120Hz, 11V ≤Vin ≤21V 56 72 -- dB Voltage DropVdrop Iout=1.0A, Tj=25o C -- 2 -- VOutput Resistance Rout f =1KHz-- 16 -- m Ω Output Short Circuit Current Ios Tj=25o C -- 450 -- mAPeak Output CurrentIo peakTj=25o C-- 2.2 -- A Temperature Coefficient of Output Voltage∆Vout/ ∆Tj Iout =10mA, 0o C ≤Tj ≤125o C-- -0.8 -- mV/oCTS7809I Electrical Characteristics(Vin=15V, Iout=500mA, 0o C ≤Tj ≤125o C, Cin=0.33uF, Cout=0.1uF; unless otherwise specified.)Parameter Symbol Test Conditions Min Typ Max UnitTj=25o C8.82 9 9.18 Output VoltageVout11.5V ≤Vin ≤23V,10mA ≤Iout ≤1.5A, PD ≤15W8.64 9 9.36V11.5V ≤Vin ≤26V -- 6 180 Line Regulation REGline Tj=25o C 12V ≤Vin ≤17V -- 2 9010mA ≤Iout ≤1.5A -- 12 180 Load Regulation REGload Tj=25o C250mA ≤Iout ≤750mA -- 4 90mVQuiescent Current Iq Iout=0, Tj=25o C -- 4.3 8 11.5V ≤Vin ≤26V -- -- 1 Quiescent Current Change ∆Iq 10mA ≤Iout ≤1.5A -- -- 0.5 mA Output Noise Voltage Vn 10Hz ≤f ≤100KHz, Tj=25o C-- 52 -- uVRipple Rejection Ratio RR f=120Hz, 12V ≤Vin ≤22V 55 72 -- dBVoltage DropVdrop Iout=1.0A, Tj=25o C -- 2 -- VOutput Resistance Rout f =1KHz-- 16 -- m Ω Output Short Circuit Current Ios Tj=25o C -- 450 -- mAPeak Output CurrentIo peakTj=25o C-- 2.2 -- ATemperature Coefficient ofOutput Voltage ∆Vout/ ∆Tj Iout 10mA, 0o C ≤Tj ≤125o C -- -1 -- mV/oC z Pulse testing techniques are used to maintain the junction temperature as close to the ambient temperature aspossible, and thermal effects must be taken into account separately.TS7810I Electrical Characteristics(Vin=16V, Iout=500mA, 0o C ≤Tj ≤125o C, Cin=0.33uF, Cout=0.1uF; unless otherwise specified.)Parameter Symbol Test Conditions Min Typ Max UnitTj=25o C 9.8 10 10.2Output VoltageVout12.5V ≤Vin ≤25V,10mA ≤Iout ≤1.5A, PD ≤15W9.6 10 10.4V12.5V ≤Vin ≤28V -- 7 200 Line Regulation REGline Tj=25o C 13V ≤Vin ≤17V -- 2 10010mA ≤Iout ≤1.5A -- 12 200 Load Regulation REGload Tj=25o C250mA ≤Iout ≤750mA -- 4 100mVQuiescent Current Iq Iout=0, Tj=25o C -- 4.3 8 12.5V ≤Vin ≤28V -- -- 1Quiescent Current Change ∆Iq 10mA ≤Iout ≤1.5A -- -- 0.5 mA Output Noise Voltage Vn 10Hz ≤f ≤100KHz, Tj=25o C-- 70 -- uVRipple Rejection Ratio RR f=120Hz, 13V ≤Vin ≤23V 55 71 -- dB Voltage DropVdrop Iout=1.0A, Tj=25o C -- 2 -- VOutput Resistance Rout f =1KHz-- 18 -- m Ω Output Short Circuit Current Ios Tj=25o C -- 400 -- mAPeak Output CurrentIo peakTj=25o C-- 2.2 -- ATemperature Coefficient of Output Voltage∆Vout/ ∆Tj Iout =10mA, 0o C ≤Tj ≤125o C -- -1 -- mV/oCTS7812I Electrical Characteristics(Vin=19V, Iout=500mA, 0o C ≤Tj ≤125o C, Cin=0.33uF, Cout=0.1uF; unless otherwise specified.)Parameter Symbol Test Conditions Min Typ Max UnitTj=25o C11.76 12 12.24 Output VoltageVout14.5V ≤Vin ≤27V,10mA ≤Iout ≤1.5A, PD ≤15W11.52 12 12.48V14.5V ≤Vin ≤30V -- 10 240 Line Regulation REGline Tj=25o C 15V ≤Vin ≤19V -- 3 12010mA ≤Iout ≤1.5A -- 12 240 Load Regulation REGload Tj=25o C250mA ≤Iout ≤750mA -- 4 120mVQuiescent Current Iq Tj=25o C, Iout=0--4.3814.5V ≤Vin ≤30V -- -- 1 Quiescent Current Change ∆Iq 10mA ≤Iout ≤1.5A -- -- 0.5 mA Output Noise Voltage Vn 10Hz ≤f ≤100KHz, Tj=25o C-- 75 -- uVRipple Rejection Ratio RR f=120Hz, 15V ≤Vin ≤25V 55 71 -- dBVoltage DropVdrop Iout=1.0A, Tj=25o C -- 2 -- VOutput Resistance Rout f =1KHz-- 18 -- m Ω Output Short Circuit Current Ios Tj=25o C -- 350 -- mAPeak Output CurrentIo peakTj=25o C-- 2.2 -- ATemperature Coefficient ofOutput Voltage ∆Vout/ ∆Tj Iout 10mA, 0o C ≤Tj ≤125o C -- -1 -- mV/oC z Pulse testing techniques are used to maintain the junction temperature as close to the ambient temperature aspossible, and thermal effects must be taken into account separately.TS7815I Electrical Characteristics(Vin=23V, Iout=500mA, 0o C ≤Tj ≤125o C, Cin=0.33uF, Cout=0.1uF; unless otherwise specified.)Parameter Symbol Test Conditions Min Typ Max UnitTj=25o C14.70 15 15.30 Output VoltageVout17.5V ≤Vin ≤30V,10mA ≤Iout ≤1.5A, PD ≤15W14.40 15 15.60V17.5V ≤Vin ≤30V -- 12 300 Line Regulation REGline Tj=25o C 18V ≤Vin ≤22V -- 3 15010mA ≤Iout ≤1.5A -- 12 300 Load Regulation REGload Tj=25o C250mA ≤Iout ≤750mA -- 4 150mVQuiescent Current Iq Tj=25o C, Iout=0--4.3817.5V ≤Vin ≤30V -- -- 1Quiescent Current Change ∆Iq 10mA ≤Iout ≤1.5A -- -- 0.5 mA Output Noise Voltage Vn 10Hz ≤f ≤100KHz, Tj=25o C-- 90 -- uVRipple Rejection Ratio RR f=120Hz, 18V ≤Vin ≤28V 54 70 -- dB Voltage DropVdrop Iout=1.0A, Tj=25o C -- 2 -- VOutput Resistance Rout f =1KHz-- 19 -- m Ω Output Short Circuit Current Ios Tj=25o C -- 230 -- mAPeak Output CurrentIo peakTj=25o C-- 2.2 -- ATemperature Coefficient of Output Voltage∆Vout/ ∆Tj Iout =10mA, 0o C ≤Tj ≤125o C -- -1 -- mV/oCTS7818I Electrical Characteristics(Vin=27V, Iout=500mA, 0o C ≤Tj ≤125o C, Cin=0.33uF, Cout=0.1uF; unless otherwise specified.)Parameter Symbol Test Conditions Min Typ Max UnitTj=25o C17.64 18 18.36 Output VoltageVout21V ≤Vin ≤33V, 10mA ≤Iout ≤1.5A, PD ≤15W17.28 18 18.72V21V ≤Vin ≤33V -- 15 360 Line Regulation REGline Tj=25o C 22V ≤Vin ≤26V -- 5 18010mA ≤Iout ≤1.5A -- 12 360 Load Regulation REGload Tj=25o C250mA ≤Iout ≤750mA -- 4 180mVQuiescent Current Iq Tj=25o C, Iout=0--4.5821V ≤Vin ≤33V -- -- 1 Quiescent Current Change ∆Iq 10mA ≤Iout ≤1.5A -- -- 0.5 mA Output Noise Voltage Vn 10Hz ≤f ≤100KHz, Tj=25o C -- 110 -- uV Ripple Rejection Ratio RR f=120Hz, 21V ≤Vin ≤31V 54 70 -- dBVoltage DropVdrop Iout=1.0A, Tj=25o C -- 2 -- VOutput Resistance Rout f =1KHz-- 22 -- m Ω Output Short Circuit Current Ios Tj=25o C -- 200 -- mAPeak Output CurrentIo peakTj=25o C-- 2.2 -- ATemperature Coefficient ofOutput Voltage ∆Vout/ ∆Tj Iout 10mA, 0o C ≤Tj ≤125o C -- -1 -- mV/oC z Pulse testing techniques are used to maintain the junction temperature as close to the ambient temperature aspossible, and thermal effects must be taken into account separately.TS7824I Electrical Characteristics(Vin=33V, Iout=500mA, 0o C ≤Tj ≤125o C, Cin=0.33uF, Cout=0.1uF; unless otherwise specified.)Parameter Symbol Test Conditions Min Typ Max UnitTj=25o C23.52 24 24.48 Output VoltageVout27V ≤Vin ≤38V, 10mA ≤Iout ≤1.5A, PD ≤15W23.04 24 24.96V27V ≤Vin ≤38V -- 18 480 Line Regulation REGline Tj=25o C 28V ≤Vin ≤32V -- 6 24010mA ≤Iout ≤1.5A -- 12 480 Load Regulation REGload Tj=25o C250mA ≤Iout ≤750mA -- 4 240mVQuiescent Current Iq Iout=0, Tj=25o C -- 4.6 8 27V ≤Vin ≤38V -- -- 1Quiescent Current Change ∆Iq 10mA ≤Iout ≤1.5A -- -- 0.5 mA Output Noise Voltage Vn 10Hz ≤f ≤100KHz, Tj=25o C -- 170 -- uVRipple Rejection Ratio RR f=120Hz, 27V ≤Vin ≤37V 54 70 -- dB Voltage DropVdrop Iout=1.0A, Tj=25o C -- 2 -- VOutput Resistance Rout f =1KHz-- 28 -- m Ω Output Short Circuit Current Ios Tj=25o C -- 150 -- mAPeak Output CurrentIo peakTj=25o C-- 2.2 -- ATemperature Coefficient ofOutput Voltage ∆Vout/ ∆Tj Iout =10mA, 0o C ≤Tj ≤125o C-- -1.5 -- mV/oC z Pulse testing techniques are used to maintain the junction temperature as close to the ambient temperature aspossible, and thermal effects must be taken into account separately.z This specification applies only for DC power dissipation permitted by absolute maximum ratings.Electrical Characteristics CurveFIGURE 1 - Worst Case Power Dissipation v.s.Ambient TemperatureFIGURE 2 - Peak Output Current v.s.Input-Output Differential VoltageFIGURE 3 – Quiescent Current v.s.Junction TemperatureFIGURE 4 – Input Output Differential v.s.Junction TemperatureFIGURE 5 – Output Voltage v.s.Junction TemperatureFIGURE 6 – Output Impedance v.s.Output Voltage。
AN78N18资料
Input
Output
Starter
+ Error Amp. –
R1
2
Common
元器件交易网
s Absolute Maximum Ratings (Ta=25˚C)
Parameter Input voltage Power dissipation Operating ambient temperature Storage temperature Symbol VI PD Topr Tstg Rating 35 *1 40 *2 8 *3 –20 to +80 –55 to +150 Unit V V W ˚C ˚C
0.5±0.25 1.44 2.3 3.5max. 0.5±0.1 1.76 1 : Input 2 : Common 3 : Output
1
2
3
JEDEC:TO-126 (SSIP003-P-0000E)
s Block Diagram
1 Pass Tr Q1 Current Source Current Limiter RSC 3 Voltage Reference R2 Thermal Protection
Input bias current fluctuation Load bias current fluctuation Output noise voltage Ripple rejection ratio Minimum input/output voltage difference Output short circuit current Peak output current Output voltage temperature coefficient
AN7808资料
I Electrical Characteristics at Ta = 25°C
• AN7805, AN7805F (5V type)
Parameter Output voltage Output voltage tolerance Line regulation Load regulation Bias current Bias current fluctuation to input Bias current fluctuation to load Output noise voltage Ripple rejection ratio Minimum input/output voltage difference Output impedance Output short-circuit current Peak output current Output voltage temperature coefficient Symbol VO VO REGIN REGL IBias ∆IBias(IN) ∆IBias(L) Vno RR VDIF(min) ZO IO(Short) IO(Peak) ∆VO/Ta Conditions Tj = 25°C VI = 8 to 20V, IO = 5mA to 1A, Tj = 0 to 125°C, PD ≤ * VI = 7.5 to 25 V, Tj = 25°C VI = 8 to 12V, Tj = 25°C IO = 5mA to 1.5A, Tj = 25°C IO = 250 to 750mA, Tj = 25°C Tj = 25°C VI = 7.5 to 25V, Tj = 25°C IO = 5mA to 1A, Tj = 25°C f = 10Hz to 100kHz VI = 8 to 18V, IO = 100mA, f = 120Hz IO = 1A, Tj = 25°C f = 1kHz VI = 25V, Tj = 25°C Tj = 25°C IO = 5mA, Tj = 0 to 125°C 62 2 17 700 2 − 0.3 40 Min 4.8 4.75 3 1 15 5 3.9 Typ 5 Max 5.2 5.25 100 50 100 50 8 1.3 0.5 Unit V V mV mV mV mV mA mA mA µV dB V mΩ mA A mV/°C
关于 LM7808 详细中文资料
关于LM7808详细中文资料目录1.lm7808介绍2.实际应用3.引脚序号、引脚功能4.lm7808应用电路5.7808电参数三端稳压集成电路lm7808。
电子产品中，常见的三端稳压集成电路有正电压输出的lm78 ×× 系列和负电压输出的lm79××系列。
顾名思义，三端IC是指这种稳压用的集成电路，只有三条引脚输出，分别是输入端、接地端和输出端。
它的样子象是普通的三极管，TO- 220 的标准封装，也有lm9013样子的TO-92封装。
1.lm7808介绍用lm78/lm79系列三端稳压IC来组成稳压电源所需的外围元件极少，电路内部还有过流、过热及调整管的保护电路，使用起来可靠、方便，而且价格便宜。
该系列集成稳压IC型号中的lm78或lm79后面的数字代表该三端集成稳压电路的输出电压，如lm7806表示输出电压为正6V，lm7909表示输出电压为负9V。
因为三端固定集成稳压电路的使用方便，电子制作中经常采用。
最大输出电流1.5A，LM78XX系列输出电压分别为5V;6V;8V;9V;10V;12V;15V;18V;24V。
2.实际应用在实际应用中，应在三端集成稳压电路上安装足够大的散热器（当然小功率7808IC内部电路图.的条件下不用）。
当稳压管温度过高时，稳压性能将变差，甚至损坏。
当制作中需要一个能输出1.5A以上电流的稳压电源，通常采用几块三端稳压电路并联起来，使其最大输出电流为N个1.5A，但应用时需注意：并联使用的集成稳压电路应采用同一厂家、同一批号的产品，以保证参数的一致。
另外在输出电流上留有一定的余量，以避免个别集成稳压电路失效时导致其他电路的连锁烧毁。
在lm78 ** 、lm79 ** 系列三端稳压器中最常应用的是TO-220 和TO-202 两种封装。
这两种封装的图形以及引脚序号、引脚功能如附图所示。
图中的引脚号标注方法是按照引脚电位从高到底的顺序标注的。
78XX系列稳压器资料
78系列三端固定正输出稳压器这类稳压器的输出为固定电压。
国内外各生产厂家均将此系列稳压器命名为78x x系列，如7805、7812等。
其中‘78’后面的数字代表该稳压器输出的正电压数值，以伏特为单位。
例如7805即表示7812表示稳压输出12V等。
有时我们会发现型号78xx前面和后面还有一个或几个英文字母，如：W78xx、AN78xx、L78xxCV等。
前面的字母称“前缀”一般是各生产厂(公司)的代号，后面的字母称‚后缀‛，用以表示输出电压容差和封装外各生厂家对集成稳压器型号后缀所用字母定义不一，但这对实际使用没多大的影响。
78xx系列稳压器按输出电压分，共有9种。
分别为：7805、7806、7809、7810、7812、7815、7818、7824。
按其最大输出又可分为：78L x x、78Mxx和78xx 三个分系列。
78Lxx系列最大输出电流为100mA；78M为500mA；78xx系列最大输出电流为1〃5A。
78xx系列稳压器外形见图。
其中，78Lxx系列有两种封装形式。
一种是金属壳的TO-39封装，见图（a）；一种是塑料TO-92封装，见图(b)。
前者温度特性比后者好，最大功耗为700mW，加散热片最大功耗可达1〃4W。
后者功耗为700mW，使用时无需加散热片。
78Lxx系列中，一般以塑封的使用较多78Mxx系列有两种封装形式。
一种是TO-202塑封，见图(c)。
不加散热片时最大功耗为1W，加200×200×40m㎡散热片时最大功耗可达7〃5W。
78xx系列也有两种封装形式：一种是金属壳的TO-3封装，见图(e)；另一种是塑料TO-220封装，见图(d)。
不加散热片时，前者最大功耗可达2.5W，后者可达2W；加装200×200×40m㎡散热片时，最大功耗可达15W。
如7805、7812等。
即表示稳压输出为5V。
、L78xxCV等。
前面的字母称“前缀”，封装外壳的类型等。
芯片采购IC采购必看
IC 知识简介IC知识一一、IC的分类IC按功能可分为：数字IC、模拟IC、微波IC及其他IC，其中，数字IC是近年来应用最广、发展最快的IC品种。
数字IC就是传递、加工、处理数字信号的IC，可分为通用数字IC和专用数字IC。
通用IC：是指那些用户多、使用领域广泛、标准型的电路，如存储器（DRAM）、微处理器（MPU）及微控制器（MCU）等，反映了数字IC的现状和水平。
专用IC（ASIC）：是指为特定的用户、某种专门或特别的用途而设计的电路。
目前，集成电路产品有以下几种设计、生产、销售模式。
1．IC制造商（IDM）自行设计，由自己的生产线加工、封装，测试后的成品芯片自行销售。
2．IC设计公司（Fabless）与标准工艺加工线（Foundry）相结合的方式。
设计公司将所设计芯片最终的物理版图交给Foundry 加工制造，同样，封装测试也委托专业厂家完成，最后的成品芯片作为IC设计公司的产品而自行销售。
打个比方，Fabless相当于作者和出版商，而Foundry相当于印刷厂，起到产业"龙头"作用的应该是前者。
二、世界集成电路产业结构的变化及其发展历程自1958年美国德克萨斯仪器公司(TI)发明集成电路（IC）后，随着硅平面技术的发展，二十世纪六十年代先后发明了双极型和MOS型两种重要的集成电路，它标志着由电子管和晶体管制造电子整机的时代发生了量和质的飞跃，创造了一个前所未有的具有极强渗透力和旺盛生命力的新兴产业集成电路产业。
回顾集成电路的发展历程，我们可以看到，自发明集成电路至今40多年以来，"从电路集成到系统集成"这句话是对IC产品从小规模集成电路（SSI）到今天特大规模集成电路（ULSI）发展过程的最好总结，即整个集成电路产品的发展经历了从传统的板上系统（System-on-board）到片上系统（System-on-a-chip）的过程。
在这历史过程中，世界IC产业为适应技术的发展和市场的需求，其产业结构经历了三次变革。
78系列和79系列 引脚图及稳压电路图资料
78系列和79系列引脚图及稳压电路图资料7805最大输出电流[1.5]A7805是我们最常用到的稳压芯片了，他的使用方便，用很简单的电路即可以输入一个直流稳压电源,他的输出电压恰好为5v，刚好是51系列单片机运行所需的电压，他有很多的系列如ka7805，ads7805，cw7805等，性能有微小的差别,用的最多的还是lm7805,下面我简单的介绍一下他的3个引脚以及用它来构成的稳压电路的资料。
左手665收藏时间：2017年4月23日17287805三端稳压集成电路，电子产品中，常见的三端稳压集成电路有正电压输出的78 ××系列和负电压输出的79××系列。
顾名思义，三端IC是指这种稳压用的集成电路，只有三条引脚输出，分别是输入端、接地端和输出端。
它的样子象是普通的三极管，TO- 220 的标准封装，也有9013样子的TO-92封装。
输出电压：4.8V～5.2V最大输出电流： 1.5A7805引脚图其中1接整流器输出的+电压，2为公共地(也就是负极)，3就是我们需要的正5V输出电压了，下面介绍一个简单的7805电路lm7805稳压电路上图中R1用220Ω，R2用680Ω的这个是用来调节输出电压的。
输出电压公式Uo≈Uxx(1+R2/R1)，此稳压电路可在5～12V稳压范围内实现输出电压连续可调节。
此三端集成稳压集成电路lm7805最大输入电压为35V，输入输出差需保持2V以上，这样该电路中因为稳压器的直流输入电压是正14V，故该稳压电路的最大输出电压为正12V。
此电路的精度一般可达到0.04以上，用lm7805就能满足一般需求了。
左手665欢迎你怎么判断l7805cv管脚是否已经烧坏左手665收藏时间：2017年4月24日09:107800系列的三端稳压IC，因厂家不同和产品的差异，用万用表测出的数值会有较大的出入，在一般情况下，输入-地之间电阻为15-45千欧，输出-地4-12千欧，地-输入4-6千欧，地-输出4-7千欧，输入-输出30-50千欧，输出-输入4.5-5.0千欧，电阻值是交换表笔测量，如果出入较大或出现0与“无穷大”均已损坏。
- 1、下载文档前请自行甄别文档内容的完整性，平台不提供额外的编辑、内容补充、找答案等附加服务。
- 2、"仅部分预览"的文档,不可在线预览部分如存在完整性等问题,可反馈申请退款(可完整预览的文档不适用该条件!)。
- 3、如文档侵犯您的权益，请联系客服反馈,我们会尽快为您处理(人工客服工作时间：9:00-18:30)。
2
元器件交易网
Voltage Regulators
I Electrical Characteristics at Ta = 25°C (continued)
• AN7806, 7806F (6V type)
Parameter Output voltage Output voltage tolerance Line regulation Load regulation Bias current Bias current fluctuation to input Bias current fluctuation to load Output noise voltage Ripple rejection ratio Minimum input/output voltage difference Output impedance Output short-circuit current Peak output current Output voltage temperature coefficient Symbol VO VO REGIN REGL IBias ∆IBias(IN) ∆IBias(L) Vno RR VDIF(min) ZO IO(Short) IO(Peak) ∆VO/Ta Conditions Tj = 25°C VI = 9 to 21V, IO = 5mA to 1A, Tj = 0 to 125°C, PD ≤ * VI = 8.5 to 25V, Tj = 25°C VI = 9 to 13V, Tj = 25°C IO = 5mA to 1.5A, Tj = 25°C IO = 250 to 750mA, Tj = 25°C Tj = 25°C VI = 8.5 to 25V, Tj = 25°C IO = 5mA to 1A, Tj = 25°C f = 10Hz to 100kHz VI = 9 to 19V, IO = 100mA, f = 120Hz IO = 1A, Tj = 25°C f = 1kHz VI = 25V, Tj = 25°C Tj = 25°C IO = 5mA, Tj = 0 to 125°C 59 2 17 700 2 − 0.4 40 Min 5.75 5.7 5 1.5 14 4 3.9 Typ 6 Max 6.25 6.3 120 60 120 60 8 1.3 0.5 Unit V V mV mV mV mV mA mA mA µV dB V mΩ mA A mV/°C
I Electrical Characteristics at Ta = 25°C
• AN7805, AN7805F (5V type)
Parameter Output voltage Output voltage tolerance Line regulation Load regulation Bias current Bias current fluctuation to input Bias current fluctuation to load Output noise voltage Ripple rejection ratio Minimum input/output voltage difference Output impedance Output short-circuit current Peak output current Output voltage temperature coefficient Symbol VO VO REGIN REGL IBias ∆IBias(IN) ∆IBias(L) Vno RR VDIF(min) ZO IO(Short) IO(Peak) ∆VO/Ta Conditions Tj = 25°C VI = 8 to 20V, IO = 5mA to 1A, Tj = 0 to 125°C, PD ≤ * VI = 7.5 to 25 V, Tj = 25°C VI = 8 to 12V, Tj = 25°C IO = 5mA to 1.5A, Tj = 25°C IO = 250 to 750mA, Tj = 25°C Tj = 25°C VI = 7.5 to 25V, Tj = 25°C IO = 5mA to 1A, Tj = 25°C f = 10Hz to 100kHz VI = 8 to 18V, IO = 100mA, f = 120Hz IO = 1A, Tj = 25°C f = 1kHz VI = 25V, Tj = 25°C Tj = 25°C IO = 5mA, Tj = 0 to 125°C 62 2 17 700 2 − 0.3 40 Min 4.8 4.75 3 1 15 5 3.9 Typ 5 Max 5.2 5.25 100 50 100 50 8 1.3 0.5 Unit V V mV mV mV mV mA mA mA µV dB V mΩ mA A mV/°C
Note 1) The specified condition Tj = 25°C means that the test should be carried out within so short a test time (within 10ms) that the characteristic value drift due to the chip junction temperature rise can be ignored. Note 2) Unless otherwise specified, VI = 10V, IO = 500mA, CI = 0.33µF and CO = 0.1µF. * AN78xx series: 15W, AN78xxF series: 10.25W
2.9±0.1
1: Input 2: Common 3: Output
1: Input 2: Common 3: Output
1
元器件交易网
AN78xx/AN78xxF Series
I Absolute Maximum Ratings at Ta = 25°C
Parameter Input voltage Power dissipation AN78xx series AN78xxF series Symbol VI PD Topr Tstg Rating 35 *1 40 *2 15 *3 10.25 *3 −30 to +80 −55 to +150 Unit V V W °C °C
Input
Output
Starter
Voltage Reference
+ Error Amp. −
R2 Thermal Protection
R1 2
Common
8.70±0.30
4.20±0.25 3.80±0.25
12.5±0.2 17.0±0.2 26.1±0.2 29.0±0.3
8.7±0.2
• AN7807, 7807F (7V type)
Parameter Output voltage Output voltage tolerance Line regulation Load regulation Bias current Bias current fluctuation to input Bias current fluctuation to load Output noise voltage Ripple rejection ratio Minimum input/output voltage difference Output impedance Output short-circuit current Peak output current Output voltage temperature coefficient Symbol VO VO REGIN REGL IBias ∆IBias(IN) ∆IBias(L) Vno RR VDIF(min) ZO IO(Short) IO(Peak) ∆VO/Ta Conditions Tj = 25°C VI = 10 to 22V, IO = 5mA to 1A, Tj = 0 to 125°C, PD ≤ * VI = 9.5 to 25V, Tj = 25°C VI = 10 to 15V, Tj = 25°C IO = 5mA to 1.5A, Tj = 25°C IO = 250 to 750mA, Tj = 25°C Tj = 25°C VI = 9.5 to 25V, Tj = 25°C IO = 5mA to 1A, Tj = 25°C f = 10Hz to 100kHz VI = 10 to 20V, IO = 100mA, f = 120Hz IO = 1A, Tj = 25°C f = 1kHz VI = 25V, Tj = 25°C Tj = 25°C IO = 5mA, Tj = 0 to 125°C 57 2 16 700 2 − 0.5 46 Min 6.7 6.6 5 1.5 14 4 3.9 Typ 7 Max 7.3 7.4 140 70 140 70 8 1 0.5 Unit V V mV mV mV mV mA mA mA µV dB V mΩ mA A mV/°C
AN78xx/AN78xxFspecified condition Tj = 25°C means that the test should be carried out within so short a test time (within 10ms) that the characteristic value drift due to the chip junction temperature rise can be ignored. Note 2) Unless otherwise specified, VI = 11V, IO = 500mA, CI = 0.33µF and CO = 0.1µF. * AN78xx series: 15W, AN78xxF series: 10.25W