LT1528中文资料
LT1228MJ8中文资料
ELECTRICAL CHARACTERISTICS
CONDITIONS TA = 25°C
q q
MIN
TYP ±3 10 ±0.3 ±10
MAX ±10 ±15 ±3 ±10 ±65 ±100
UNITS mV mV µV/°C µA µA µA µA nV/√Hz pV/√Hz MΩ MΩ pF V V V V dB dB dB dB
q q q
6 1.4 2 2 ±13 ±12 ±3 ±2 55 55 55 55 25 25 6 ±13.5 ±3.5 69 69 2.5
q
VS = ± 5V, TA = 25°C
q
CMRR
Common-Mode Rejection Ratio
VS = ±15V, VCM = ±13V, TA = 25°C VS = ± 15V, VCM = ± 12V VS = ±5V, VCM = ±3V, TA = 25°C VS = ± 5V, VCM = ± 2V VS = ±15V, VCM = ±13V, TA = 25°C VS = ± 15V, VCM = ± 12V VS = ± 5V, VCM = ± 3V, TA = 25°C VS = ± 5V, VCM = ± 2V VS = ± 2V to ±15V, TA = 25°C VS = ± 3V to ±15V VS = ± 2V to ±15V, TA = 25°C VS = ± 3V to ±15V VS = ± 2V to ±15V, TA = 25°C VS = ± 3V to ±15V
APPLICATI
s s s s s s
S
Video DC Restore (Clamp) Circuits Video Differential Input Amplifiers Video Keyer/Fader Amplifiers AGC Amplifiers Tunable Filters Oscillators
LT138A中文资料
LT138A/LT338A LM138/LM338 5A Positive Adjustable Voltage Regulator
FEATURES
s s s s s
DESCRIPTIO
Guaranteed 1% Initial Tolerance Guaranteed 0.3% Load Regulation Guaranteed 5A Output Current 100% Thermal Limit Burn-In 12A Transient Output Current
q q q q q q q
60
60 75 45 0.2 3.5 100 5 5
IADJ ∆IADJ
Adjust Pin Current Adjust Pin Current Change Minimum Load Current
ISC
Current Limit
5 6
8 12 1 2
2
UU
U
U
U
W
W W
q q
ELECTRICAL CHARACTERISTICS
MIN 1.238 1.225
LT138A TYP MAX 1.250 1.250 0.005 0.02 5 0.1 1.262 1.270 0.01 0.04 15 0.3 30 0.6 0.01
10mA ≤ IOUT ≤ 5A, (Note 3) VOUT ≤ 5V VOUT ≥ 5V VOUT ≤ 5V VOUT ≥ 5V
MIN 1.19
LM138 TYP 1.24 0.005 0.02 5 0.1 20 0.3 0.002 60 75 45 0.2 3.5
MAX 1.29 0.01 0.04 15 0.3 30 0.6 0.01
LEADTECK领泰产品方案应用
11.3 16.4
6.8 10.8
7.5 10.7
5.1 6.6
5.4 7.3
9.1 16.8
8.5
13
49
64
37
52
27
35
9.6 12.4
18
26
LT4805SQ P+P
SOP-8L
-30 ±20 18
21
LT9926SQ-X N+N
SOP-8L
20 ±12
24.4 29.4
LT9926SQ N+N
LT7446FL
N
PDFN3X3-8L
30 ±20
LT7446FN N TDFN3.3X3.3-8L 30 ±20
LT7468FL
N
LT7468FL-Y N
LT4953SQ P+P
LT4807SQ P+P
LT4803SQ LT3810FR
P+P
N+N 串联
LT4805SQ-X P+P
PDFN3X3-8L PDFN3X3-8L
SOP-8L
20 ±12
19
26
LT3810FP
N+N 并联
PDFN3X3-8L
30 ±20 12
19
同向
MOSFET在交换机上应用
Part Number TYP
LT0110SR N
LT0115SR N
LTS0150SQ N
LT1528SJ
P
LT1520SJ
P
Package
TO252-2L TO252-2L SOP-8L SOT23-3L SOT23-3L
LT4812SQ-Y N+N
LT215中文资料
LT211
Turn on time (ms)
1.5
20
1.0
10
0.5
LT211 LT210
0 100 -40 -20 0 20 40 60 85 100
0 -40 -20 0 20 40 60 80
85
100
Ambient temperature (℃ )
Ambient temperature (℃ )
50 120 100
On resistance Vs. Ambient temperature
3.0
Turn on time Vs. Ambient temperature
LT211
40
LT210
On resistabce (Ω )
30
LT210
2.5
2.0
Load current (mA)
80 60 40 20 0 -40 -20 0 20 40 60 80
Unit : mm
Recommended Mounting Pad
(Unit: mm / Tolerance: ±0.1)
Marking
(Each photo MOS relay shall be marked with the following information)
Brand Name
Letex
1.2 0.12
LED foward current Vs. turn off time characteristics
Applied voltage Vs. output capacitance characteristics
200
1.0
0.10
0.8
L7805CD2T-TR中文资料
2SA1215中文资料(sanken)中文数据手册「EasyDatasheet - 矽搜」
Chopper regulator, DC motor driver, general-purpose –120
Chopper regulator, DC motor driver, general-purpose –120
Audio, seriesregulator, general-purpose
–100 –160 5000
–100 –160 5000
–100 –160 5000
–100 –160 5000
–100 –160 5000
–100 –150 5000
–100 –150 5000
–100 –150 5000
hFE max
Conditions VCE Ic (V) (A)
180 –4 –3
–150
Audio output driver, TV velocity modulation
–180
Audio, general-purpose
–150
Audio, general-purpose
–80
Audio, general-purpose
–120
Audio, general-purpose
–80
Audio, general-purpose
–120
Audio, general-purpose
–140
Audio, general-purpose
–80
Chopper regulator, switch, general-purpose
–70
Audio output driver, TV velocity modulation
VCBO Applications
(V)
LT1568中文手册
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Alcatel1521中文说明书资料
Alcatel 1521中文说明书北京惟帆通讯设备有限公司2001年8月目录一、概述 (3)二、设备特点 (3)三、系统应用 (3)四、系统描述 (5)五、功能描述 (6)5.1 透明的传输模式(Transparent Transmission Mode) (6)5.2 ISDN PRA传输模式 (6)5.3 专线模式(SLL) (7)5.4 X.21数据传输模式 (7)六、设备维护描述 (8)6.1 设置 (9)6.2系统保护 (9)七.设备的物理特性 (9)7.1 Alcatel 1521FL S9机框物理描述 (9)7.2 Alcatel 1521FL DT的物理描述 (12)7.3手持终端HHT的物理描述 (12)八、设备安装 (13)8.1 Alcatel 1521FL S9机框的安装 (13)8.2 Alcatel 1521FL DT的安装 (13)8.3 Alcatel 1521FL系统运行 (13)九、系统技术数据 (14)9.1 光模块组件 (14)9.2 光功率 (14)9.3 2 Mbit/s接口 (14)9.4 辅助数据通道 (14)9.5 光接口 (15)9.6 告警接口 (15)9.7 电源指标 (15)9.8 机械规格 (15)9.9 环境规范 (16)9.10 MTBF (16)一、概述在未来的宽带BISDN的发展中,高带宽,大数据容量对光传输越来越成为主流的发展方向,在支持当前的宽带业务中,发展N×2M的光纤线路将具有最佳的投资效益.Alcatel 1521 FL是4*2Mbit/s光纤接入系统。
属于Alcatel接入产品系列。
同时,1521FL 也适用于短距离或中等距离的干线传输。
在一对单模光纤双向传输数据(传输距离50KM),也可以采用波分复用的技术在单根光纤进行双方向传输数据(传输距离30KM)。
Alcatel 1521 FL终端设备中集成了4*2Mbit/s多路复用器和光传输模块。
一种实用的精密复合式开关稳压电源
一种实用的精密复合式开关稳压电源介绍一种双路输出的高效、精密、复合式开关稳压电源的设计方法。
该电源既具有开关电源的高效,同时又具有线性稳压电源的稳压特性好的特点,因而是一种集开关电源与线性电源优点于一身的较为理想的实用化电源。
当前众多开关稳压电源,虽然体积小,效率高,但输出电压的纹波较大,尤其对于多路输出开关电源,通常不能同时保证多路输出的高稳定性。
传统的线性稳压电源输出电压稳定性虽高,但缺点是电源效率低,还必须配备笨重的工频变压器。
为此,本文介绍了一种双路输出的复合式开关稳压电源,该电源采用TOPSwitch器件作为前级稳压器,给低压差线性稳压器LT1528提供直流输入电压,然后利用低压差线性稳压器LT1528获得高质量的稳压输出。
实验证明该电路具有良好的性能,有很高的实用性。
1 复合式开关电源的设计复合式开关电源的电路构成框图如图1所示,该电源主要由TOPSwitch器件与低压差线性集成稳压器(LowDropoutRegulator)LT1528CT构成。
1.1 TOPSwitch器件TOPSwitch系列芯片是PowerIntergretion公司生产的开关电源专用集成电路。
TOPSwitch-Ⅱ只有3个引出端,漏极D为主电源输入端、控制端C为控制信号输入端、源极S是电源公共端,也是控制电路的基准点。
该芯片将脉宽调制PWM控制系统的全部功能集成到三端芯片中,内部结构功能框图如图2所示,包括脉宽调制器、功率开关场效应管MOSFET、自动偏置电路、护电路、高压启动电路和环路补偿电路等。
使用该芯片设计的单端反激式开关电源,电路结构简洁、成本低、且性能非常可靠。
1.2 低压差线性集成稳压器LT1528低压差集成稳压器是近年来问世的高效率线性稳压集成电路。
传统的三端集成稳压器普遍采用电压控制型,为保证稳压效果,输入输出压差一般取2~4 V 以上,否则不能正常工作。
低压差稳压器采用电流控制型,并且选用低压降的晶体管作为内部调整管,能够把输入输出压差降低到0.6 V以下,大大提高了电源的转换效率。
HFBR-1528中文资料
10 Megabaud Versatile Link Fiber Optic Transmitterand Receiver for 1 mm POF and 200 µm HCS ®Technical DataHFBR-0508 SeriesHFBR-1528 Transmitter HFBR-2528 ReceiverFeatures• Data Transmission at Signal Rates of dc to 10 MBd• Up to 50 Meters Distances with 1 mm Plastic Optical Fiber (POF)• Up to 500 Meters Distances with 200 µm Hard Clad Silica (HCS ®)• Wide Dynamic RangeReceiver Allows Operation from Zero to Maximum Link Distance with a SingleTransmitter Drive Current • Link Distances Specified for Variations in Temperature,Power Supply, and Fiber Attenuation• DC Coupled Receiver with CMOS/TTL Output for Easy Designs: No Data Encoding or Digitizing Circuitry Required• Pulse Width Distortion Controlled to LimitDistortion from Low Duty Cycle or Burst Mode Data •High Noise Immunity• Compatible with Agilent’s Versatile Link Family of Connectors, for Easy Termination of FiberApplications• Industrial Control and Factory Automation • Serial Field Buses• Intra-System Links; Board-to-Board, Rack-to-Rack• Extension of RS-232, RS-485• Elimination of Ground Loops • High Voltage Isolation• Reduces Voltage Transient SusceptibilityDescriptionThe HFBR-0508 Series consists of a fiber-optic transmitter and receiver operating at a 650 nm wavelength (red). The HFBR-1528 transmitter is an LED in a low cost plastic housing designed to efficiently couple power into 200 µm diameter HCS and 1mm diameter POF. The HFBR-2528receiver incorporates a PIN detec-tor and digital output IC compat-ible with CMOS and TTL logic families.HFBR-0508 links operate from DC to 10 MBd at distances up to 50 meters with 1mm POF and upCAUTION:. It is advised that normal static precautions be taken in handling and assembly of these components to prevent damage and/or degradation which may be induced by ESD.HCS ®is a registered trademark of SpecTran Corporation.to 500 meters with 200 µm HCS ®.No minimum link distances are required when using recom-mended circuits, simplifying design.Versatile Link components can be interlocked (N-plexed together) to minimize space and to provide dual connections with the duplex connectors. Up to eight packages can be interlocked and inserted into a printed circuit board.POF and HCS are available in pre-connectored lengths or can be easily field-terminated. A single transmitter drive current for POF and HCS allows both fibers to be used with a single design.HFBR-0508 Series 10 MBd Data LinkTypical Link Performance, T A = +25°CParameter Symbol Typ.[1]Unit Condition Note Signaling Rate f S15Mb/s NRZ2 Link Distance with Extra Low Loss POF Cable100m10 MBd2, 3, 5 Link Distance with 200 µm HCS Cable900m10 MBd2, 4, 5Specified Link Performance, T A = -20° to +85°C, DC to 10 MBd, unless otherwise noted.Absolute Maximum RatingsRecommended Operating ConditionsParameter Symbol Min.Max.Unit Condition Note Ambient Temperature T A-20+85°CPower Supply Voltage V CC 4.75 5.25V<100 mV p-p Noise Transmitter Peak Forward Current I F,PK2090mA6 Transmitter Average Forward Current I F,AV60mAFanout (7400 Series TTL)N1Notes:1. Typical data at +25°C, V CC = 5 V.2. With recommended transmitter and receiver application circuits (60 mA nominal drive current).3. POF is HFBR-R/EXXYYY plastic (1 mm) optical fiber. Worst case attenuation used (0.23 dB/m from -40°C to +85°C at 660 nm).4. HCS is HFBR-H/VXXYYY hard clad silica (200/230 µm) fiber. Worst case attenuation is used (10 dB/km from 0°C to +70°C and12dB/km from -40°C to +85°C at 650 nm).5. BER ≤ 10-9, 223 - 1 PRBS NRZ 10 MBd.6. For I F,PK > 60 mA, the duty factor must maintain I F,AV≤ 60 mA and pulse with ≤ 1 µs.7. 1.6 mm below seating plane.Electrical and Optical Characteristics: T A = -40° to +85°C unless otherwise noted.Notes:1. Typical data are at 25°C.2. Optical power measured at the end of 0.5 meters of 1 mm diameter plastic or 200 µm diameter hard clad silica fiber with a large area detector.3. Minimum and maximum values for P T over temperature are based on a fixed drive current. The recommended drive circuit has temperature compensation which reduces the variation in P T over temperature; refer to Figures 4 and 6.4. Typical value measured from junction to PC board solder joint for horizontal mount package, HFBR-1528.5. Pins 5 and 8 are for mounting and retaining purposes, but are electrically connected; pins 3 and 4 are electrically isolated. It is recommended that pins 3, 4, 5 and 8 all be connected to ground to reduce coupling of electrical noise.6. Refer to the “Plastic Optical Fiber and HCS Fiber Cable and Connectors for Versatile Link” Technical Data Sheet for cable connector options for 1 mm plastic and 200 µm HCS optical fiber.plastic optical fiber (POF) and Hard Clad Silica (HCS) fiber. This transmitter can be operated up to 10 MBd using a simple driver circuit. The HFBR-1528 is com-patible with all Versatile Link connectors.SEE NOTE 5HFBR-1528 Transmitter, Top ViewHFBR-1528 TransmitterThe HFBR-1528 transmitter incorporates a 650 nm LED in a light gray, nonconductive plastic housing. The high light output power enables the use of bothWARNING: WHEN VIEWED UNDER SOME CONDITIONS, THE OPTICAL PORT MAY EXPOSE THE EYE BEYOND THE MAXIMUM PERMISSIBLE EXPOSURE RECOMMENDED IN ANSI Z136.2, 1993. UNDER MOST VIEWING CONDITIONS THERE IS NO EYE HAZARD.Figure 6. Recommended Transmitter Drive Circuit (I F,on = 60 mA Nominal at T A = 25°C).Figure 5. Typical Optical Pulse Width Distortion vs.Temperature and Power Supply Voltage (in Recommended Drive Circuit).VFigure 4. Typical Normalized Optical Power vs. Temperature (in Recommended Drive Circuit).Figure 3. Typical Normalized Optical Spectra.V F – F O R W A R D V O L T A G E – VI F,DC – TRANSMITTER DRIVE CURRENT – mAFigure 2. Typical Normalized Optical Power vs. Drive Current.Figure 1. Typical Forward Voltage vs. Drive Current.N O R M A L I Z E D S P E C T R A L O U T P U T P O W E RWAVELENGTH (nm)N O R M A L I Z E D O U T P U T P O W E RTEMPERATURE – °CP T – N O R M A L I Z E D O U T P U TP O W E R – d BI F,DC – TRANSMITTER DRIVE CURRENT – mAP W D – n sTEMPERATURE – °CHFBR-2528 ReceiverThe HFBR-2528 receiver consists of a silicon PIN photodiode and digitizing IC to produce a logic compatible output. The IC includes a unique circuit tocorrect the pulse width distortion of the first bit after a long idle period. This enables operation from DC to 10 MBd with low PWD for arbitrary data patterns.The receiver output is a “push-pull” stage compatible with TTL and CMOS logic. The receiver housing is a dark, conductive plastic, compatible with all Versatile Link connectors.Electrical and Optical Characteristics: T A = -20° to +85°C, 4.75 V < V CC < 5.25 V, unlessotherwise noted.ParameterSymbol Min.Typ .[1]Max.Unit T A (°C)Condition Note Fig.Peak POF Sensitivity:P RL,min -23.0-21.0dBm +25 1 mm POF,2,62,4Minimum Input for -20.00 to +70|PWD| < 30 ns Logic “0”-19.5-20 to +85Peak POF OverdriveP RL,max +1.0+5.0dBm +25 1 mm POF,2,3,1,2,Limit:Maximum +0.00 to +70|PWD| < 30 ns 63Input for Logic “0”-1.0-20 to +85Peak POF Off State P RH,max -42dBm 1 mm POF 2,6,Limit: Maximum 8Input for Logic “1”Peak HCSP RL,min -25.0-23.0dBm +25200 µm HCS,2,6Sensitivity: Minimum -22.00 to +70|PWD| < 30 ns Input for Logic “0”-21.5-20 to +85Peak HCS Overdrive P RL,max -1.0+3.0dBm +25200 µm HCS,2,3,Limit: Maximum -2.00 to +70|PWD| < 30 ns 6Input for Logic “0”-3.0-20 to +85Peak HCS Off State P RH,max -44dBm 200 µm HCS 2,6,Limit: Maximum 8Input for Logic “1”Supply Current I CC 2745mA V O = Open High Level Output V OH 4.24.7V I O = -40 µA VoltageLow Level Output V OL 0.220.4V I O = +1.6 mA VoltageOutput Rise Time t r 1230ns C L = 10 pF 6Output Fall Time t f 1030ns C L = 10 pF6Thermal Resistance,θjc 200°C/W 4Junction to Case Electric Field E MAX 8kV/m Near Field,5Immunity Electrical Field Source Power Supply PSNI0.10.4V ppSine Wave 6Noise ImmunityDC - 10 MHzNotes:1. Typical data are at +25°C, V CC = 5.0 V .2. Input power levels are for peak (not average) optical input levels. For 50% duty cycle data, peak optical power is twice the average optical power.3. Receiver overdrive (P RL,max ) is specified as the limit where |PWD| will not exceed 30 ns. The receiver will be in the correct state (logic “0”) for optical powers above P RL,max . However, it may not meet a 30% symbol period PWD if the overdrive limit is exceeded.Refer to Figure 2 for PWD performance at high received optical powers.4. Typical value measured from junction to PC board solder joint for horizontal mount package, HFBR-2528.5. Pins 5 and 8 are electrically connected to the conductive housing and are also used for mounting and retaining purposes. It is required that pins 5 and 8 be connected to ground to maintain conductive housing shield effectiveness.6. In recommended receiver circuit, with an optical signal from the recommended transmitter circuit.7. Pin 4 is electrically isolated internally. Pin 4 may be externally connected to pin 1 for board layout compatibility with HFBR-25X1,HFBR-25X2 and HFBR-25X4. Otherwise it is recommended pin 4 be grounded as in Figure 5.8. BER ≤ 10E-9, includes a 10.8 dB margin below the receiver switching threshold level (signal to noise ratio = 12).HFBR-2528 Receiver, Top ViewNO CONNECT V CC GROUND V OSEE NOTES 5,7Figure 5. Recommended Receiver Application Circuit.Figure 4. Typical POF Receiver Pulse Width Distortion vs.Power Supply Voltage at Low Optical Power, (-21 dBm,pk,10 MBd).Figure 3. Typical POF Receiver Pulse Width Distortion vs. Power Supply Voltage at High Optical Power (0dBm,pk, 10 MBd).R E C E I V E D P W D – n s-223010-30P RL – RECEIVER OPTICAL INPUT POWER – dBm-18200-2-10-20-14-10-62V CCDATAHFBR-2528R E C E I VE D P O W E R – d B mTEMPERATURE – °CFigure 2. Typical POF Receiver Pulse Width Distortion vs.Optical Power at 10 MBd.Figure 1. Typical POF Receiver Overdrive, P RL,max , at 10MBd, vs. Temperature and Power Supply Voltage.P W D – n s4.7169V CC – VOLTS4.85.55.0 5.1 5.34.9 5.2 5.4131211101415P W D – n s4.7-13-18V CC – VOLTS4.8-14-155.5-16-175.0 5.1 5.34.9 5.2 5.4TOP VIEWFigure 6. HFBR-2528 Receiver Block Diagram.Versatile Link Mechanical DimensionsVersatile Link Printed Circuit Board Layout DimensionsTRANSMITTERHFBR-1528RECEIVER HFBR-25281 2 3 4 5 8ANODE CATHODE GROUND* GROUND* GROUND** GROUND**SIGNAL, V O GROUND V CC (+5 V) GROUND* GROUND** GROUND**PIN NO.* NO INTERNAL CONNECTION,GROUND CONNECTION RECOMMENDED. ** PINS 5 AND 8 CONNECTED INTERNALLY TO EACH OTHER.ELECTRICAL PIN FUNCTIONS 3 V CC8 GROUND 1 V O, DATA2 GROUND 5 GROUNDData subject to change.Copyright © 1999 Agilent Technologies, Inc. Obsoletes 5963-3519E (10/94)5963-3591E (11/99)。
常减压装置三顶瓦斯回收应用总结
常减压轻烃回收实现集中脱硫应用总结1.概述为了常减压装置降损增效和提高加热炉热效率,针对常减压装置的常顶瓦斯和减顶瓦斯没有脱硫直接去加热炉燃烧,影响加热炉燃料硫含量并且造成瓦斯中C3以上含量的损失,特进行三顶瓦斯回收系统改造,利用液环真空泵将常顶瓦斯和减顶瓦斯升压后去催化进行脱硫回收,不仅可以降低加热炉燃料硫含量,也降低了加工损失。
同时,由于液环真空泵抽力较大,可以减少或停用塔顶空冷风机,降低电耗。
2.改造内容2.1改造方案1)本次技术改造总体方案是利用原有的轻烃回收罐V31作为三顶瓦斯回收系统液环泵的入口缓冲罐,减顶瓦斯在去加热炉总管上新增去V31管线,从而将常顶瓦斯和减顶瓦斯一起引入液环真空泵进行压缩去催化V203罐进行脱硫。
2)为了提升减顶瓦斯去V31的压力,在减顶瓦斯新增管线上增设了一个蒸汽抽空器,利用1.3MPa蒸汽作为蒸汽抽空器的动力汽源,以将减顶瓦斯压力升至微正压,以使减顶瓦斯与常顶瓦斯能够一起进入液环泵进行压缩。
3)在蒸汽抽空器投运后,为了能够将蒸汽进行冷凝,利用了一台原常顶瓦斯冷却器(E216A)作为蒸汽冷却器,减顶瓦斯和蒸汽一起冷却后进入V31。
4)此次改造新增了一台液环真空泵P213,可以分别利用减一线柴油或新鲜水作为工作液,在液环泵出口设有一个小型分液罐,同时起到工作液缓冲罐和压缩气体分液罐的双重作用。
为了能够提高整个系统操作平稳率,改造新增了DCS操作控制系统,增加了分液罐液位自控系统和液环泵入口压力自控系统,通过自动调节系统,以确保常顶压力控制平稳,液环泵工作安全平稳。
5)为了能够对三顶瓦斯回收总量进行计量,此次将初定瓦斯、常顶瓦斯和减顶瓦斯流量计全部进行了更新,以保证常减压轻烃流量计量准确,减少损耗。
2.2工艺简介原初顶瓦斯去催化、三顶瓦斯放空、三顶瓦斯去加热炉流程保留。
初顶瓦斯气体现已增压直接去催化装置V203,原流程保持不变,只更新流量计。
减顶瓦斯气自二级抽真空冷却器E211出口由蒸汽喷射增压器X212增压至0.05MPA,增压后送至常顶瓦斯脱液罐V31。
MP1528DQ中文资料
EV1528DQ-00A9 Lamp, 20mA PreciscionWLED Driver Evaluation BoardThe Future of Analog IC TechnologyTMTMGENERAL DESCRIPTIONThe EV1528DQ-00A evaluation board isdesigned for driving up to nine (9) series WLEDs from a single cell Lithium Ion battery. The board is set up to obtain 20mA LED current. The current can be adjusted by varying the resistor R1.The MP1528 uses current limited, variable frequency architecture to regulate the LED current while maintaining high efficiency. The BIAS pin measures the output voltage and turns off the converter if an over voltage condition is present to prevent damage due to an open circuit condition. The LED current is measured with an external current sense resistor. The low 0.4V full-scale regulation threshold and 0.4Ω power switch minimize power loss to improve efficiency. Either a DC voltage or a PWM signal at the BRT input can control the LED brightness.ELECTRICAL SPECIFICATIONSParameter Symbol Value Units Input Voltage V IN 2.7 – 5.5 V # of WLEDs 7 – 9LED CurrentI LED 20 mAFEATURES• 2.7V to 5.5V Input Voltage Range • Drives up to 9 Series White LEDs• Analog and Digital PWM Brightness ControlThrough BRT • Surface-Mount Components • Fully Assembled and TestedAPPLICATIONS• Handheld Computers • PDAs • PDA Phones• Digital and Video Cameras • Small LCD Displays“MPS” and “The Future of Analog IC Technology” are Trademarks of MonolithicPower Systems, Inc.EV1528DQ-00A EVALUATION BOARD(L x W x H) 2.0” x 1.5” x 0.5” (5.0cm x 3.8cm x 1.4cm) Board NumberMPS IC NumberEV1528DQ-00A MP1528DQ908070605040E F F I C I E N C Y (%)510152025LED CURRENT (mA)MP1528_EC01Efficiency vsLoad CurrentEV1528DQ-00A – 9 LAMP, 20MA PRECISION WLED DRIVER EV BOARDTMEVALUATION BOARD SCHEMATICEV1528_S01VIN GNDBRT GND ENEV1528DQ-00A BILL OF MATERIALSQty Ref Value Description Package Manufacturer P/N Distributor P/N 1 C1 4.7µF Ceramic Capacitor, 10V, X5R 1206 TDK:C3216X5R1A475K Digikey:445-1386-1-ND 1 C2 1µF Ceramic Capacitor, 50V, X7R 1206 TDK:C3216X7R1H105K Digikey:445-1423-1-ND 1 C3 10nF Ceramic Capacitor, 50V, X7R 0805 TDK:C2012X7R1H103K Digikey:445-1348-1-ND 1 D1Diode Schottky, 60V, 1ASMA Diodes Inc.: B160B-13-F Digikey:B160B-FDICT-ND 1 L1 6.2µH Inductor, 1.45A, D62LCB SMDToko:A918CY-6R2M9LED1to LED9Not Stuffed1 R1 20Ω Resistor, 1% 0805Panasonic:ERJ-6GEYJ200V Digikey:P20ACT-ND 1 R2 100k Ω Resistor, 5% 0805Panasonic:ERJ-6GEYJ104V Digikey:P100KACT-ND 1 U1White LED DriverQFN6MPS:MP1528DQEV1528DQ-00A – 9 LAMP, 20MA PRECISION WLED DRIVER EV BOARDNOTICE: The information in this document is subject to change without notice. Please contact MPS for current specifications. Users should warrant and guarantee that third party Intellectual Property rights are not infringed upon when integrating MPS products into any application. MPS will not assume any legal responsibility for any said applications.TMPRINTED CIRCUIT BOARD LAYOUTFigure 1—Top Silk LayerFigure 2—Top LayerFigure 3—Bottom LayerQUICK START GUIDE1. Solder LED1 - LED9 to the board.2. Attach the positive and negative terminals of the power supply (2.7V - 5.5V) to the VIN andGND pins, respectively. 3. Drive EN high to enable the MP1528.4. Apply a DC voltage of 0.3V to 1.2V on BRT for analog dimming. Maximum brightness (20mAtypical) occurs with 1.2V applied. For PWM dimming mode, apply a PWM rectangular wave with a minimum voltage less than 0.18V and a maximum greater than 1.2V. When a voltage less than 0.18V is applied to this pin, the output switch is turned off. The frequency of the PWM signal must be between 100Hz to 400Hz.。
LT1568
–9 –12 –15 –18 –21 –24 –27 100k 1M FREQUENCY (Hz) 10M
1568 TA02
1568 TA01
U
U
1568f
1
LT1568
ABSOLUTE
(U W PACKAGE/ORDER I FOR ATIO
TOP VIEW V+ INVA SA OUTA OUTA GNDA NC V– 1 2 3 4 5 6 7 8 16 V + 15 INVB 14 SB 13 OUTB 12 OUTB 11 GNDB 10 EN 9 V–
FEATURES
s s
LT1568 Very Low Noise, High Frequency Active RC, Filter Building Block DESCRIPTIO
The LT®1568 is an easy-to-use, active-RC filter building block with rail-to-rail inputs and outputs. The internal capacitors of the IC and the GBW product of the internal low noise op amps are trimmed such that consistent and repeatable filter responses can be achieved. With a single resistor value, the LT1568 provides a pair of matched 2-pole Butterworth lowpass filters with unity gain suitable for I/Q channels. By using unequal-valued external resistors, the two 2-pole sections can create different frequency responses or gains. In addition, the two stages may be cascaded to create a single 4-pole filter with a programmable response. Capable of cutoff frequencies up to 10MHz, the LT1568 is ideal for antialiasing or channel filtering in high speed data communications systems. The LT1568 can also be used as a bandpass filter. The LT1568 features very low noise, supporting signal-tonoise ratios of over 90dB. It also provides single-ended to differential signal conversion for directly driving high speed A/D converters. The LT1568 has a shutdown mode that reduces supply current to approximately 0.5mA on a 5V supply. The LT1568 is available in a narrow 16-lead SSOP package.
SD1528-08资料
AVIONICS APPLICATIONSRF &MICROWAVE TRANSISTORS.250SQ.2LFL (M105)hermetically sealed.DESIGNED FOR HIGH POWER PULSED IFF,DME,TACAN APPLICATIONS .20WATTS (typ.)IFF 1030-1090MHz .15WATTS (min.)DME 1025-1150MHz .15WATTS (typ.)TACAN 960-1215MHz .10dB MIN.GAIN.REFRACTORY GOLD METALLIZATION .EMITTER BALLASTING AND LOW THERMAL RESISTANCE.20:1LOAD VSWR CAPABILITY ATSPECIFIED OPERATING CONDITIONS .INPUT MATCHED,COMMON BASE CONFIGURATIONDESCRIPTIONThe SD1528-08is a gold metallized,silicon NPN power transistor.The SD1528-08is designed for applications requiring high peak power and low duty cycles such as IFF,DME and TACAN.The SD1528-08is packaged in the .250”input matched hermetic stripline flange package resulting in im-proved broadband performance and a low thermal resistance.PIN CONNECTIONBRANDING 1528-8ORDER CODE SD1528-08ABSOLUTE MAXIMUM RATINGS (T case =25°C)SymbolParameterValueUnitV CBO Collector-Base Voltage 65V V CEO Collector-Emitter Voltage 65V V EBO Emitter-Base Voltage 3.5V I C Device Current 1.5A P DISS Power Dissipation 87.5W T J Junction Temperature +200°C T STGStorage Temperature−65to +150°CR TH(j-c)Junction-Case Thermal Resistance 2.0°C/WSD1528-081.Collector 3.Emitter2.BaseTHERMAL DATANovember 19921/4ELECTRICAL SPECIFICATIONS (T case =25°C)SymbolTest ConditionsValueUnitMin.Typ.Max.P OUT f =1025—1150MHz P IN =1.5W V CE =50V 15——W G P f =1025—1150MHz P IN =1.5W V CE =50V 10——dB ηcf =1025—1150MHz P IN =1.5WV CE =50V30——%Note:Pulse Width= 10µSec,Duty Cycle= 1%STATICSymbolTest ConditionsValueUnitMin.Typ.Max.BV CBO I C =10mA I E =0mA 65——V BV CES I C =25mA V BE =0V 65——V BV EBO I E =1mA I C =0mA 3.5——V I CESV CE =50VI E =0mA——2mADYNAMICTYPICAL PERFORMANCEPOWER OUTPUT vs POWER INPUT POWER OUTPUT vs FREQUENCYSD1528-082/4TEST CIRCUITC1:1000µF Electrolytic C2:680pF Chip Capacitor C3:120pF Chip CapacitorC4:0.6-4.5pF Johanson GigatrimL1:61/2Turns,#22AWG on a #30Drill Bit Z:Printed Transmission Line,Length =1.91”Board :Er =2.5,.034”Thick All Dimensions are in Inches.IMPEDANCE DATATYPICAL INPUT IMPEDANCETYPICAL COLLECTOR LOADIMPEDANCESD1528-083/4SD1528-08PACKAGE MECHANICAL DATARef.:Dwg.No.12-0105Information furnished is believed to be accurate and reliable.However,SGS-THOMSON Microelectronics assumes no responsability for the consequences of use of such information nor for any infringement of patents or other rights of third parties which may results from its use.No license is granted by implication or otherwise under any patent or patent rights of SGS-THOMSON Microelectronics.Specificationsmentioned in this publication are subject to change without notice.This publication supersedes and replaces all information previously supplied.SGS-THOMSON Microelectronics products are not authorized for use ascritical components in life support devices or systems without express written approval of SGS-THOMSON Microelectonics.©1994SGS-THOMSON Microelectronics-All Rights ReservedSGS-THOMSON Microelectronics GROUP OF COMPANIESAustralia-Brazil-France-Germany-Hong Kong-Italy-Japan-Korea-Malaysia-Malta-Morocco-The Netherlands-Singapore-Spain-Sweden-Switzerland-Taiwan-Thailand-United Kingdom-U.S.A4/4。
C1608C0G1H152J资料
REMINDERSPlease read this before using the product.SAFETY REMINDERSREMINDERS1. If you intend to use a product listed in this catalog for a purpose that may cause loss of life or other damage, you must contact our company’s sales window.2. We may modify products or discontinue production of a product listed in this catalog without prior notification.3. We provide “Delivery Specification” that explain precautions for the specifications and safety of each product listed in this cata-log. We strongly recommend that you exchange these delivery specifications with customers that use one of these products.4. If you plan to export a product listed in this catalog, keep in mind that it may be a restricted item according to the “Foreign Exchange and Foreign Trade Control Law”. In such cases, it is necessary to acquire export permission in harmony with this law.5. Any reproduction or transferring of the contents of this catalog is prohibited without prior permission from our company.6. We are not responsible for problems that occur related to the intellectual property rights or other rights of our company or a third party when you use a product listed in this catalog. We do not grant license of these rights.7. This catalog only applies to products purchased through our company or one of our company’s official agencies. This catalog does not apply to products that are purchased through other third parties.8. The descriptions in this catalog apply as of April 2007.General Multilayer Ceramic Chip Capacitors C Series C1608 (EIA CC0603) TypeFEATURES•High capacitance has been achieved through precision technologies that enable the use of multiple thinner ceramic dielectric layers.• A monolithic structure ensures superior mechanical strength and reliability.•High-accuracy automatic mounting is facilitated through the maintenance of very precise dimensional tolerances.•Composed of only ceramics and metals, these capacitors provide extremely dependable performance, exhibiting virtually no degradation even when subjected to temperature extremes.•Low stray capacitance ensures high conformity with nominal values, thereby simplifying the circuit design process.•Low residual inductance assures superior frequency characteristics.•Because electrostatic capacity has been obtained up to the electrolytic capacitor range, these capacitors offer long service life and are optimally suited for power supply designs that require high levels of reliability.•Owing to their low ESR and excellent frequency characteristics, these products are optimally suited for high frequency and high-density type power supplies.SHAPES AND DIMENSIONS PRODUCT IDENTIFICATION(1) Series name(2) Dimensions L×W(3) Capacitance temperature characteristicsClass 1 (T emperature compensation)Class 2 (T emperature stable and general purpose)(4) Rated voltage Edc(5) Nominal capacitanceThe capacitance is expressed in three digit codes and in units of pico farads (pF).The first and second digits identify the first and second significant figures of the capacitance.The third digit identifies the multiplier.R designates a decimal point.(6) Capacitance tolerance(7) Packaging styleConformity to RoHS DirectiveC1608CH1H100D(1)(2)(3)(4)(5)(6)(7)1608 1.6×0.8mmT emperaturecharacteristicsCapacitance change Temperature rangeCH0±60ppm/°C–25 to +85°CSL+350 to –1000ppm/°C+20 to +85°CT emperaturecharacteristicsCapacitance change Temperature rangeJB±10%–25 to +85°CJF+30, –80%–25 to +85°CX7R±15%–55 to +125°CX5R±15%–55 to +85°CY5V+22, –82%–30 to +85°C1A10V1C16V1H50V0101pF10010pF1021,000pF0R50.5pFSymbol T oleranceApplicable capacitancerangeC±0.25pF10pF or lessJ±5%Over 10pFK±10%Z+80, –20%T T aping (reel)B Bulk•Conformity to RoHS Directive: This means that, in conformity with EU Directive 2002/95/EC, lead, cadmium, mercury, hexavalent chromium, and specific bromine-based flame retardants, PBB and PBDE, have not been used, except for exempted applications.CAPACITANCE RANGES: CLASS 1 (TEMPERATURE COMPENSATION)TEMPERATURE CHARACTERISTICS: CH(0±60ppm/°C), C0G(0±30ppm/°C)RATED VOLTAGE Edc: 50V TEMPERATURE CHARACTERISTICS: SL(+350 to –1000ppm/ )RATED VOLTAGE Edc: 10VCAPACITANCE RANGES: CLASS 2TEMPERATURE CHARACTERISTICS: JB(±10%), X5R/X7R(±15%)RATED VOLTAGE Edc: 50VCapacitance(pF)ToleranceThickness T (mm)Part No.T emperature characteristics: CH T emperature characteristics: C0G 0.5 ±0.25pF 0.8±0.10C1608CH1H0R5C C1608C0G1H0R5C 0.75 ±0.25pF 0.8±0.10C1608CH1HR75C C1608C0G1HR75C 1 ±0.25pF 0.8±0.10C1608CH1H010C C1608C0G1H010C 1.5 ±0.25pF 0.8±0.10C1608CH1H1R5C C1608C0G1H1R5C 2 ±0.25pF 0.8±0.10C1608CH1H020C C1608C0G1H020C 3 ±0.25pF 0.8±0.10C1608CH1H030C C1608C0G1H030C 4 ±0.25pF 0.8±0.10C1608CH1H040C C1608C0G1H040C 5 ±0.25pF 0.8±0.10C1608CH1H050C C1608C0G1H050C 6 ±0.5pF 0.8±0.10C1608CH1H060D C1608C0G1H060D 7 ±0.5pF 0.8±0.10C1608CH1H070D C1608C0G1H070D 8 ±0.5pF 0.8±0.10C1608CH1H080D C1608C0G1H080D 9 ±0.5pF 0.8±0.10C1608CH1H090D C1608C0G1H090D 10 ±0.5pF 0.8±0.10C1608CH1H100D C1608C0G1H100D 12 ±5%0.8±0.10C1608CH1H120J C1608C0G1H120J 15 ±5%0.8±0.10C1608CH1H150J C1608C0G1H150J 18 ±5%0.8±0.10C1608CH1H180J C1608C0G1H180J 22 ±5%0.8±0.10C1608CH1H220J C1608C0G1H220J 27 ±5%0.8±0.10C1608CH1H270J C1608C0G1H270J 33 ±5%0.8±0.10C1608CH1H330J C1608C0G1H330J 39 ±5%0.8±0.10C1608CH1H390J C1608C0G1H390J 47 ±5%0.8±0.10C1608CH1H470J C1608C0G1H470J 56 ±5%0.8±0.10C1608CH1H560J C1608C0G1H560J 68 ±5%0.8±0.10C1608CH1H680J C1608C0G1H680J 82 ±5%0.8±0.10C1608CH1H820J C1608C0G1H820J 100 ±5%0.8±0.10C1608CH1H101J C1608C0G1H101J 120±5%0.8±0.10C1608CH1H121J C1608C0G1H121J 150 ±5%0.8±0.10C1608CH1H151J C1608C0G1H151J 180±5%0.8±0.10C1608CH1H181J C1608C0G1H181J 220 ±5%0.8±0.10C1608CH1H221J C1608C0G1H221J 270±5%0.8±0.10C1608CH1H271J C1608C0G1H271J 330 ±5%0.8±0.10C1608CH1H331J C1608C0G1H331J 390±5%0.8±0.10C1608CH1H391J C1608C0G1H391J 470 ±5%0.8±0.10C1608CH1H471J C1608C0G1H471J 560±5%0.8±0.10C1608CH1H561J C1608C0G1H561J 680 ±5%0.8±0.10C1608CH1H681J C1608C0G1H681J 820±5%0.8±0.10C1608CH1H821J C1608C0G1H821J 1,000 ±5%0.8±0.10C1608CH1H102J C1608C0G1H102J 1,500 ±5%0.8±0.10C1608CH1H152J C1608C0G1H152J 2,200 ±5%0.8±0.10C1608CH1H222J C1608C0G1H222J 3,300 ±5%0.8±0.10C1608CH1H332JC1608C0G1H332JCapacitance (pF)Tolerance Thickness T (mm)Part No.T emperature characteristics: SL 15,000±5%0.80±0.10C1608SL1A153J 22,000±5%0.80±0.10C1608SL1A223JCapacitance(pF)ToleranceThickness T (mm)Part No.T emperature characteristics: JB T emperature characteristics: X5R Temperature characteristics: X7R 10,000 ±10%0.8±0.10C1608JB1H103KC1608X5R1H103K C1608X7R1H103K15,000 ±10%0.8±0.10C1608JB1H153KC1608X5R1H153K C1608X7R1H153K 22,000 ±10%0.8±0.10C1608JB1H223K C1608X5R1H223K C1608X7R1H223K 33,000 ±10%0.8±0.10C1608JB1H333KC1608X5R1H333K C1608X7R1H333K 47,000 ±10%0.8±0.10C1608JB1H473KC1608X5R1H473K C1608X7R1H473K 68,000 ±10%0.8±0.10C1608JB1H683KC1608X5R1H683K C1608X7R1H683K 100,000±10%0.8±0.10C1608JB1H104K C1608X5R1H104K C1608X7R1H104K ±20%0.8±0.10C1608JB1H104MC1608X5R1H104MC1608X7R1H104MRATED VOLTAGE Edc: 16VTEMPERATURE CHARACTERISTICS: JB(±10%), X5R(±15%)RATED VOLTAGE Edc: 25VRATED VOLTAGE Edc: 16VRATED VOLTAGE Edc: 10VRATED VOLTAGE Edc: 6.3VTEMPERATURE CHARACTERISTICS: JF(+30, –80%), Y5V(+22, –82%)RATED VOLTAGE Edc: 50VT emperature characteristics: JB T emperature characteristics: X5R Temperature characteristics: X7R 150,000 ±10%0.8±0.10C1608JB1E154K C1608X5R1E154K C1608X7R1E154K ±20%0.8±0.10C1608JB1E154M C1608X5R1E154M C1608X7R1E154M 220,000 ±10%0.8±0.10C1608JB1E224K C1608X5R1E224K C1608X7R1E224K ±20%0.8±0.10C1608JB1E224M C1608X5R1E224M C1608X7R1E224M 330,000±10%0.8±0.10C1608JB1E334K C1608X5R1E334K C1608X7R1E334K ±20%0.8±0.10C1608JB1E334MC1608X5R1E334MC1608X7R1E334MCapacitance (pF)Tolerance Thickness T (mm)Part No.T emperature characteristics: JB T emperature characteristics: X5R Temperature characteristics: X7R 470,000 ±10%0.8+0.15, –0.1C1608JB1C474K C1608X5R1C474K C1608X7R1C474K ±20%0.8+0.15, –0.1C1608JB1C474M C1608X5R1C474M C1608X7R1C474M 680,000 ±10%0.8+0.15, –0.1C1608JB1C684K C1608X5R1C684K C1608X7R1C684K ±20%0.8+0.15, –0.1C1608JB1C684M C1608X5R1C684M C1608X7R1C684M 1,000,000±10%0.8+0.2, –0.1C1608JB1C105K C1608X5R1C105K C1608X7R1C105K ±20%0.8+0.2, –0.1C1608JB1C105MC1608X5R1C105MC1608X7R1C105MCapacitance (pF)Tolerance Thickness T (mm)Part No.T emperature characteristics: JB T emperature characteristics: X5R 470,000±10%0.80±0.10C1608JB1E474K C1608X5R1E474K ±20%0.80±0.10C1608JB1E474M C1608X5R1E474M 680,000±10%0.80±0.10C1608JB1E684K C1608X5R1E684K ±20%0.80±0.10C1608JB1E684M C1608X5R1E684M 1,000,000±10%0.80±0.10C1608JB1E105K C1608X5R1E105K ±20%0.80±0.10C1608JB1E105MC1608X5R1E105MCapacitance (pF)Tolerance Thickness T (mm)Part No.T emperature characteristics: JB T emperature characteristics: X5R 1,500,000 ±10%0.8±0.10C1608JB1C155K C1608X5R1C155K ±20%0.8±0.10C1608JB1C155M C1608X5R1C155M 2,200,000±10%0.8±0.10C1608JB1C225K C1608X5R1C225K ±20%0.8±0.10C1608JB1C225MC1608X5R1C225MCapacitance (pF)Tolerance Thickness T (mm)Part No.T emperature characteristics: JB T emperature characteristics: X5R 3,300,000 ±10%0.8±0.10C1608JB1A335K C1608X5R1A335K ±20%0.8±0.10C1608JB1A335M C1608X5R1A335M 4,700,000±10%0.8±0.10C1608JB1A475K C1608X5R1A475K ±20%0.8±0.10C1608JB1A475MC1608X5R1A475MCapacitance (pF)Tolerance Thickness T (mm)Part No.T emperature characteristics: JB T emperature characteristics: X5R 6,800,000 ±10%0.80+0.15,–0.10C1608JB0J685K C1608X5R0J685K ±20%0.80+0.15,–0.10C1608JB0J685M C1608X5R0J685M 10,000,000±10%0.80+0.15,–0.10C1608JB0J106K C1608X5R0J106K ±20%0.80+0.20,–0.10C1608JB0J106MC1608X5R0J106MCapacitance(pF)ToleranceThickness T (mm)Part No.T emperature characteristics: JF T emperature characteristics: Y5V 100,000 +80,–20%0.8±0.10C1608JF1H104Z C1608Y5V1H104Z 220,000 +80,–20%0.8±0.10C1608JF1H224Z C1608Y5V1H224Z 470,000 +80,–20%0.8±0.10C1608JF1H474ZC1608Y5V1H474ZRATED VOLTAGE Edc: 16V RATED VOLTAGE Edc: 6.3V T emperature characteristics: JF T emperature characteristics: Y5V1,000,000 +80,–20%0.8±0.10C1608JF1E105Z C1608Y5V1E105ZCapacitance (pF)ToleranceThickness T(mm)Part No.T emperature characteristics: JF T emperature characteristics: Y5V2,200,000 +80,–20%0.8±0.10C1608JF1C225Z C1608Y5V1C225ZCapacitance (pF)ToleranceThickness T(mm)Part No.T emperature characteristics: JF T emperature characteristics: Y5V4,700,000 +80,–20%0.8±0.10C1608JF0J475Z C1608Y5V0J475Z 10,000,000 +80,–20%0.8+0.15,–0.10C1608JF0J106Z C1608Y5V0J106Z • For more information about the products of other capacitance or data, please contact us.。
LT1248资料
GTDR Current Continuous ..................................... 0.5A
GTDR Output Energy(Per Cycle) .............................. 5µJ IAC, RSET, PKLIM Input Current ............................. 20mA VSENSE, EN/SYNC, OVP Input Voltage ................... VMAX ISENSE, MOUT Input Current .................................. ± 5mA Operating Junction Temperature Range
HS1528P无线遥控芯片电子钥匙芯片编码解码芯片
HS1528P产品说明书1.概述HS1528P是采用低耗高速CMOS工艺制造的专用编解码电路,它内部包含一个32×2Bit的一次性可编程只读电存储器(OTP-ROM)。
HS1528P提供给用户一个方便的开发和检验它们的程序的环境。
用户可以根据自己需要来确定不同的编码,有两种编码可选,最低有220种(百万次),最高有240种(万亿次),可以有效地降低编码重复率。
2.特征◆低静态电流,小于1.4µA◆工作电压范围宽:1.8V~5.5V◆4按键组合输入,可有15个组合按键◆一位码宽误差范围:±10%◆OTP-ROM◆可以选择发2240或1527两种码型◆小体积8脚封装◆两种工作模式(可选):省电模式、正常模式◆每次按键必须发送2帧才能完毕,第一、第二帧地址可以不同(决定于OTP内的数据)3.应用◆车辆防盗系统◆家庭防盗系统◆遥控玩具◆其他工业或家庭遥控4.封装信息4.1管脚图4.2管脚说明5.电路框图6.极限参数(Ta=25℃)范围电源电压-0.3~5.5输入电压-0.3~Vcc+0.3输出电压-0.3~Vcc+0.3Vcc=12V)工作温度储存温度7.电气参数(除非特殊说明:Tamb=25℃)符号8.功能说明8.1功能描述HS1528P通过烧写器来烧写地址位,通过按键(K0~K3)脚配对相应的数据位,编码成一个专用字码,当一个或几个按键脚(K0~K3)同时接到VCC(高电平)时由TXD脚输出此字码,再通过射频调制器发射。
该发射的字码通过射频解调接收器接收并还原该字码。
单片机解析该还原后的字码。
这样就构成了一个完整的编解码遥控控制系统。
HS1528P采用内置RC电路,省去一个外置振荡电阻。
8.2位码位码是编码波形的基本单元,可分为A/D (地址/数据)位和syn (同步)位。
8.2.1A/D (地址或数据)位8.2.1.1“0”码“0”码(35.2a )是一个高低电平宽度比为8.8a :26.4a 的脉冲(先高后低)。
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TYPICAL APPLICATION
Microprocessor Supply with Shutdown
5 IN
OUT 1
VIN =5V
LT1528
4 SHDN
PACKAGE/ORDER INFORMATION
FRONT VIEW
5
TAB
4
IS
3
GND
2
1
VIN SHDN GND SENSE OUTPUT
ORDER PART NUMBER
LT1528CQ
Q PACKAGE 5-LEAD PLASTIC DD PAK
TJMAX = 125°C, θJA = 30°C/ W
Dropout Voltage (Note 4)
CONDITIONS
VIN = 3.8V, IOUT = 1mA, TJ = 25°C 4.3V < VIN < 15V, 1mA < IOUT < 3A
∆VIN = 3.8V to 15V, IOUT = 1mA
∆ILOAD = 1mA to 3A, VIN = 4.3V,TJ = 25°C ∆ILOAD = 1mA to 3A, VIN = 4.3V
LT1528C ............................................... 0°C to 125°C Lead Temperature (Soldering, 10 sec).................. 300°C
*For applications requiring input voltage ratings greater than 15V, contact the factory.
MIN 3.250 q 3.200 q
q
q
q
q
q
q
TYP 3.300 3.300 1.5
12 15 70
150
280
390
570
MAX
3.350 3.400
10 20 30 110 150 200 250 320 420 450 600 670 850
UNITS
V V mV mV mV mV mV mV mV mV mV mV mV mV mV
Output Short-Circuit Duration .......................... Indefinite
Storage Temperature Range ................. – 65°C to 150°C Operating Junction Temperature Range
SENSE 2
GND
3
VOUT
15Ω 68Ω + 4 × 47µF*
SOLID TANTALUM
J1 J2
J3
330Ω
VSHDN (PIN 4) <0.25 >2.80 NC
OUTPUT OFF ON ON
SHORTING J1 J2 J3
V OUT 3.30 3.45 4.00
*CHOOSE CAPACITORS TO MEET PROCESSOR REQUIREMENTS
ILOAD = 10mA, TJ = 25°C ILOAD = 10mA
ILOAD = 100mA, TJ = 25°C ILOAD = 100mA
ILOAD = 700mA, TJ = 25°C ILOAD = 700mA
ILOAD = 1.5A, TJ = 25°C ILOAD = 1.5A
ILOAD = 3A, TJ = 25°C ILOAD = 3A
LT1528
ABSOLUTE MAXIMUM RATINGS
Input Voltage ....................................................... ±15V* Output Pin Reverse Current .................................. 10mA Sense Pin Current ................................................. 10mA Shutdown Pin Input Voltage (Note 1) .......... 6.5V, – 0.6V Shutdown Pin Input Current (Note 1) ..................... 5mA
元器件交易网
LT1528
3A Low Dropout Regulator for Microprocessor Applications
U U
FEATURES
s Dropout Voltage: 0.6V at IOUT = 3A s Fast Transient Response s Output Current: 3A s Quiescent Current: 400µA s No Protection Diodes Needed s Fixed Output Voltage: 3.3V s Controlled Quiescent Current in Dropout s Shutdown IQ = 125µA s Stable with 3.3µF Output Capacitor s Reverse Battery Protection s No Reverse Output Current s Thermal Limiting
MIN
q q
90 q q 0.25 q q
50
q 3.2 q
TYP MAX
450 750 1.9
1.2
2.5
2.7
2.6
4.0
4.1
7.3
12.0
8.8
22
40
85
140
130 250
1.20 2.80 0.75
CONDITIONS
ILOAD = 0mA, TJ = 25°C ILOAD = 0mA, TJ = 125°C (Note 6) ILOAD = 100mA, TJ = 25°C ILOAD = 100mA, TJ = 125°C (Note 6) ILOAD = 300mA, TJ = 25°C ILOAD = 300mA, TJ = 125°C (Note 6) ILOAD = 700mA, TJ = 25°C ILOAD = 700mA, TJ = 125°C (Note 6) ILOAD = 1.5A ILOAD = 3A TJ = 25°C VOUT = Off-to-On VOUT = On-to-Off VSHDN = 0V VIN = 6V, VSHDN = 0V VIN – VOUT = 1V(Avg), VRIPPLE = 0.5VP-P, fRIPPLE = 120Hz, ILOAD = 1.5A VIN – VOUT = 7V, TJ = 25°C VIN = 4.3V, ∆VOUT = – 0.1V VIN = – 15V, VOUT = 0V VOUT = 3.3V, VIN = 0V
LT1528 • TA01
DROPOUT VOLTAGE (V)
Dropout Voltage
0.6
0.5
0.4
0.3
0.2
0.1
0 0 0.5 1.0 1.5 2.0 2.5 3.0
OUTPUT CURRENT (mA)
LT1528 • TA02
1元器件交易网来自U WU U WW W
GND SENSE
OUTPUT
ORDER PART NUMBER
LT1528CT
ELECTRICAL CHARACTERISTICS
PARAMETER Regulated Output Voltages (Notes 2, 3)
Line Regulation (Note 3) Load Regulation (Note 3)
2
元器件交易网
LT1528
ELECTRICAL CHARACTERISTICS
PARAMETER Ground Pin Current (Note 5)
Sense Pin Current (Notes 3, 7) Shutdown Threshold Shutdown Pin Current (Note 8) Quiescent Current in Shutdown (Note 9) Ripple Rejection Current Limit Input Reverse Leakage Current Reverse Output Current (Note 10)
U APPLICATIONS
s Microprocessor Applications s Post Regulator for Switching Supplies s 5V to 3.3V Logic Regulator
DESCRIPTION
The LT ®1528 is a 3A low dropout regulator optimized to handle the large load current transients associated with the current generation of microprocessors. This device has the fastest transient response of currently available PNP regulators and is very tolerant of variations in capacitor ESR. Dropout voltage is 75mV at 10mA, rising to 300mV at 1A and 600mV at 3A. The device has a quiescent current of 400µA. Quiescent current is well controlled; it does not increase significantly as the device enters dropout. The regulator can operate with output capacitors as small as 3.3µF, although larger capacitors will be needed to achieve the performance required in most microprocessor applications. The LT1528 is available with a fixed output voltage of 3.3V. An external Sense pin allows adjustment to output voltages greater than 3.3V, using a simple resistive divider. This allows the device to be adjusted over a wide range of output voltages, including the 3.3V to 4.2V range required by a variety of processors from Intel, IBM, AMD, and Cyrix.