KA3884中文资料
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outputsinkcurrentpowerdissipationsymbolvcciovianaisinkeapdvalue30103to63101unitvavmawelectricalcharacteristicsvcc15vrt10kct33nfta0?to85?unlessotherwisespecifiedcharacteristicreferencesectionoutputvoltagelineregulationloadregulationoutputshortcircuitosillatorsectioninitialaccuracyvoltagestabilityamplitudedischargecurrentcurrentsensesectiongainmaximuminputsignalpsrrinputbiascurrentdelaytooutputgvvimaxpsrribiastdnote23vpin15vnote2vcc12vto25vnote12?vpin30vto2vnote128509???31070210031511?10200vvvdbuansfoscstvvoscidischgtj25?vcc12vto25vvpin4peaktopeaktj25?pin42v47??7852021783571?88khzvmavreflvreflvrefisctj25?io1mavcc12vto25vio1mato20mata25?49???5066100512025180vmvmvmasymboltestconditionsmintypmaxunit元器件交?网wwwcecb2bcomka3882345smpscontrollerelectricalcharacteristicscontinuedvcc15vrt10kct33nfta0?to85?unlessotherwisespecifiedcharacteristicerroramplifiersectioninputvoltageinputbiascurrentopenloopgainunitygainbandwidthpsrroutputsinkcurrentoutputsourcecurrentoutputhighvoltageoutputlowvoltageoutputsectionoutputlowlevelout
PSRR
Input Bias Current Delay to Output
VREF
LVREF LVREF
ISC
FOSC STV VOSC IDISCHG
Î TJ = 25 , IO = 1mA
VCC = 12V to 25V IO = 1mA to 20mA
Î Ta = 25
Î TJ = 25
VCC = 12V to 25V VPIN4, Peak to Peak
Unity Gain Bandwidth
Symbol
VI IBIAS GVO
GBW
PSRR
PSRR
Output Sink Current
ISINK
Output Source Current
ISOURCE
Output High Voltage
VOH
Output Low Voltage
VOL
OUTPUT SECTION
ELECTRICAL CHARACTERISTICS(Continued)
` Î Î (VCC = 15V, RT = 10K , CT = 3.3nF, TA = 0 to + 85 , Unless otherwise specified)
Characteristic ERROR AMPLIFIER SECTION Input Voltage Input Bias Current Open Loop Gain
ACEx™ CoolFET™ CROSSVOLT™ E2CMOSTM FACT™ FACT Quiet Series™ FAST® FASTr™ GTO™ HiSeC™
ISOPLANAR™ MICROWIRE™ POP™ PowerTrench™ QS™ Quiet Series™ SuperSOT™-3 SuperSOT™-6 SuperSOT™-8 TinyLogic™
(NOTE 1) VCC = 27V, C1 = 1nF
KA3882/4 KA3883/5 KA3882/4 KA3883/5
Min Typ Max Unit
2.42 2.50 2.58
V
ï
-0.3
-2
uA
65
90
ï
dB
0.7
1
ï MHz
60
70
ï
dB
2
6
ï mA
-0.5 -0.8
ï
mA
5
6
ï
V
ï
0.8
LIFE SUPPORT POLICY
FAIRCHILD’S PRODUCTS ARE NOT AUTHORIZED FOR USE AS CRITICAL COMPONENTS IN LIFE SUPPORT
DEVICES OR SYSTEMS WITHOUT THE EXPRESS WRITTEN APPROVAL OF FAIRCHILD SEMICONDUCTOR CORPORATION.
` Î Î (VCC = 15V, RT = 10K , CT = 3.3nF, TA = 0 to +85 , unless otherwise specified)
Characteristic
Symbol
Test Conditions
Min
Typ
Max Unit
PWM SECTION
Maximum Duty Cycle Minimum Duty Cycle
( After turn on )
Test Conditions
ï TPIN1 = 2.5V
VO = 2V to 4V (NOTE 1)
Î TJ= 25
(NOTE 1) VCC = 12V to 25V
(NOTE 1) VPIN2 = 2.7V VPIN1 = 1.1V VPIN2 = 2.3V VPIN1 = 5.0V
BLOCK DIAGRAM
ORDERING INFORMATION
Device KA388X KA388XD
Package 8 DIP 8 SOP
Operating Temperature
Î 0 ~ + 85 Î 0 ~ + 85
©1999 Fairchild Semiconductor Corporation
1.1
V
ï
0.1
0.4
V
ï
1.5
2.2
V
13
13.5
ï
V
12
13.5
ï
V
ï
40
100
ns
ï
40
100
ns
ï
22
ï
V
15
16
17
V
7.8
8.4
9.0
V
9
10
11
V
7.0
7.6
8.2
V
元器件交易网
KA3882/3/4/5
SMPS CONTROLLER
ELECTRICAL CHARACTERISTICS(Continued)
V
ï
6
20
mV
ï
6
25
mV
ï
- 100 - 180 mA
47
52
57 KHz
ï 0.2
1
%
ï 1.7 ï
V
7.8
8.3
8.8
mA
2.85
3
3.15 V/V
0.9
1.0
1.1
V
ï ï 70
dB
ï
-2
-10
uA
ï
100 200
ns
元器件交易网
KA3882/3/4/5
SMPS CONTROLLER
UHC™ VCX™
DISCLAIMER
FAIRCHILD SEMICONDUCTOR RESERVES THE RIGHT TO MAKE CHANGES WITHOUT FURTHER NOTICE TO ANY PRODUCTS HEREIN TO IMPROVE RELIABILITY, FUNCTION OR DESIGN. FAIRCHILD DOES NOT ASSUME ANY LIABILITY ARISING OUT OF THE APPLICATION OR USE OF ANY PRODUCT OR CIRCUIT DESCRIBED HEREIN; NEITHER DOES IT CONVEY ANY LICENSE UNDER ITS PATENT RIGHTS, NOR THE RIGHTS OF OTHERS.
8 DIP 8 SOP
FEATURES
• Low Start Current 0.2mA (typ) • Operating Range Up To 500KHz • Cycle by Cycle Current Limiting • Under Voltage Lock Out With Hysteresis • Short Shutdown Delay Time: typ.100ns • High Current Totempole Output • Output Swing Limiting: 22V
Output Low Level
VOL
Output High Level
VOH
Rise Time
tR
Fall Time
tF
Output Voltage Swing Limit
VOLIM
UNDER VOLTAGE LOCKOUT SECTION
Start Threshold
VTH
Min.Operating Voltage VTL
元器件交易网
KA3882/3/4/5
SMPS CONTROLLER
CURRENT MODE PWM CONTROLLER
The KA3882/3/4/5 are fixed PWM controller for Off-Line and DC to DC converter applications. The internal circuits include UVLO, low start up current circuit, temperature compensated reference, high gain error amplifier, current sensing comparator, and high current totempole output for driving a POWER MOSFET. Also KA 3882/3/4/5 provide low start up current below 0.3mA and short shutdown delay time typ. 100ns. The KA3882 and KA3884 have UVLO threshold of 1 6V(on) and 10V(off). The KA3883 and KA3885 are 8.4V(on) and 7.6V(off). The KA3882 and KA3883 can operate within 100% duty cycle. The KA3884 and KA3885 within 50% by using T Flip-Flop.
NOTE 1. These parameters, although guaranteed, are not 100% tested in production.
L L 2. Parameter measured at trip point of latch with V2 = 0V.
3. Gain defined as: GV = VPIN1 VPIN3(VPIN3 = 0 to 0.8V)
Rev. B
元器件交易网
KA3882/3/4/5
SMPS CONTROLLER
ABSOLUTE MAXIMUM RATINGS
Characteristic
Supply Voltage Output Current Analog Inputs (pin 2, 3) Error Amp. Output Sink Current Power Dissipation
KA3882/3
94
DMAX
KA3884/5
47
DMIN
ï
ï
TOTAL STANDBY CURRENT
Start-Up Current
IST
ï
ï
Operating Supply Current
ICC
VPIN2 = VPIN3 = 0V
ï
VCC Zener Voltage
VZ
ICC = 25mA
ï
Adjust VCC above the start threshold bifore setting at 15V
Characteristic
Symbol
ห้องสมุดไป่ตู้
Test Conditions
REFERENCE SECTION Output Voltage Line Regulation Load Regulation Output Short Circuit OSILLATOR SECTION Initial Accuracy Voltage Stability Amplitude Discharge Current CURRENT SENSE SECTION Gain Maximum Input Signal
96
100
%
48
50
%
ï
0
%
0.2
0.4
mA
11
17
mA
29
ï
V
元器件交易网
TRADEMARKS
The following are registered and unregistered trademarks Fairchild Semiconductor owns or is authorized to use and is not intended to be an exhaustive list of all such trademarks.
Symbol
VCC IO VI(ANA) ISINK(EA) PD
Value
30 +1 - 0.3 to 6.3 10 1
Unit
V A V mA W
ELECTRICAL CHARACTERISTICS
` Î Î (VCC = 15V, RT = 10K , CT = 3.3nF, TA = 0 to + 85 , Unless otherwise specified)
Î TJ = 25 , Pin4 = 2V
GV VI(MAX) PSRR
IBIAS TD
(NOTE 2, 3) VPIN1 = 5V(NOTE 2) VCC = 12V to 25V
(NOTE 1, 2)
ï
VPIN3 = 0V to 2V (NOTE1)
Min Typ Max Unit
4.9
5.0
5.1
` VPIN2 = 2.3V
PSRR
Input Bias Current Delay to Output
VREF
LVREF LVREF
ISC
FOSC STV VOSC IDISCHG
Î TJ = 25 , IO = 1mA
VCC = 12V to 25V IO = 1mA to 20mA
Î Ta = 25
Î TJ = 25
VCC = 12V to 25V VPIN4, Peak to Peak
Unity Gain Bandwidth
Symbol
VI IBIAS GVO
GBW
PSRR
PSRR
Output Sink Current
ISINK
Output Source Current
ISOURCE
Output High Voltage
VOH
Output Low Voltage
VOL
OUTPUT SECTION
ELECTRICAL CHARACTERISTICS(Continued)
` Î Î (VCC = 15V, RT = 10K , CT = 3.3nF, TA = 0 to + 85 , Unless otherwise specified)
Characteristic ERROR AMPLIFIER SECTION Input Voltage Input Bias Current Open Loop Gain
ACEx™ CoolFET™ CROSSVOLT™ E2CMOSTM FACT™ FACT Quiet Series™ FAST® FASTr™ GTO™ HiSeC™
ISOPLANAR™ MICROWIRE™ POP™ PowerTrench™ QS™ Quiet Series™ SuperSOT™-3 SuperSOT™-6 SuperSOT™-8 TinyLogic™
(NOTE 1) VCC = 27V, C1 = 1nF
KA3882/4 KA3883/5 KA3882/4 KA3883/5
Min Typ Max Unit
2.42 2.50 2.58
V
ï
-0.3
-2
uA
65
90
ï
dB
0.7
1
ï MHz
60
70
ï
dB
2
6
ï mA
-0.5 -0.8
ï
mA
5
6
ï
V
ï
0.8
LIFE SUPPORT POLICY
FAIRCHILD’S PRODUCTS ARE NOT AUTHORIZED FOR USE AS CRITICAL COMPONENTS IN LIFE SUPPORT
DEVICES OR SYSTEMS WITHOUT THE EXPRESS WRITTEN APPROVAL OF FAIRCHILD SEMICONDUCTOR CORPORATION.
` Î Î (VCC = 15V, RT = 10K , CT = 3.3nF, TA = 0 to +85 , unless otherwise specified)
Characteristic
Symbol
Test Conditions
Min
Typ
Max Unit
PWM SECTION
Maximum Duty Cycle Minimum Duty Cycle
( After turn on )
Test Conditions
ï TPIN1 = 2.5V
VO = 2V to 4V (NOTE 1)
Î TJ= 25
(NOTE 1) VCC = 12V to 25V
(NOTE 1) VPIN2 = 2.7V VPIN1 = 1.1V VPIN2 = 2.3V VPIN1 = 5.0V
BLOCK DIAGRAM
ORDERING INFORMATION
Device KA388X KA388XD
Package 8 DIP 8 SOP
Operating Temperature
Î 0 ~ + 85 Î 0 ~ + 85
©1999 Fairchild Semiconductor Corporation
1.1
V
ï
0.1
0.4
V
ï
1.5
2.2
V
13
13.5
ï
V
12
13.5
ï
V
ï
40
100
ns
ï
40
100
ns
ï
22
ï
V
15
16
17
V
7.8
8.4
9.0
V
9
10
11
V
7.0
7.6
8.2
V
元器件交易网
KA3882/3/4/5
SMPS CONTROLLER
ELECTRICAL CHARACTERISTICS(Continued)
V
ï
6
20
mV
ï
6
25
mV
ï
- 100 - 180 mA
47
52
57 KHz
ï 0.2
1
%
ï 1.7 ï
V
7.8
8.3
8.8
mA
2.85
3
3.15 V/V
0.9
1.0
1.1
V
ï ï 70
dB
ï
-2
-10
uA
ï
100 200
ns
元器件交易网
KA3882/3/4/5
SMPS CONTROLLER
UHC™ VCX™
DISCLAIMER
FAIRCHILD SEMICONDUCTOR RESERVES THE RIGHT TO MAKE CHANGES WITHOUT FURTHER NOTICE TO ANY PRODUCTS HEREIN TO IMPROVE RELIABILITY, FUNCTION OR DESIGN. FAIRCHILD DOES NOT ASSUME ANY LIABILITY ARISING OUT OF THE APPLICATION OR USE OF ANY PRODUCT OR CIRCUIT DESCRIBED HEREIN; NEITHER DOES IT CONVEY ANY LICENSE UNDER ITS PATENT RIGHTS, NOR THE RIGHTS OF OTHERS.
8 DIP 8 SOP
FEATURES
• Low Start Current 0.2mA (typ) • Operating Range Up To 500KHz • Cycle by Cycle Current Limiting • Under Voltage Lock Out With Hysteresis • Short Shutdown Delay Time: typ.100ns • High Current Totempole Output • Output Swing Limiting: 22V
Output Low Level
VOL
Output High Level
VOH
Rise Time
tR
Fall Time
tF
Output Voltage Swing Limit
VOLIM
UNDER VOLTAGE LOCKOUT SECTION
Start Threshold
VTH
Min.Operating Voltage VTL
元器件交易网
KA3882/3/4/5
SMPS CONTROLLER
CURRENT MODE PWM CONTROLLER
The KA3882/3/4/5 are fixed PWM controller for Off-Line and DC to DC converter applications. The internal circuits include UVLO, low start up current circuit, temperature compensated reference, high gain error amplifier, current sensing comparator, and high current totempole output for driving a POWER MOSFET. Also KA 3882/3/4/5 provide low start up current below 0.3mA and short shutdown delay time typ. 100ns. The KA3882 and KA3884 have UVLO threshold of 1 6V(on) and 10V(off). The KA3883 and KA3885 are 8.4V(on) and 7.6V(off). The KA3882 and KA3883 can operate within 100% duty cycle. The KA3884 and KA3885 within 50% by using T Flip-Flop.
NOTE 1. These parameters, although guaranteed, are not 100% tested in production.
L L 2. Parameter measured at trip point of latch with V2 = 0V.
3. Gain defined as: GV = VPIN1 VPIN3(VPIN3 = 0 to 0.8V)
Rev. B
元器件交易网
KA3882/3/4/5
SMPS CONTROLLER
ABSOLUTE MAXIMUM RATINGS
Characteristic
Supply Voltage Output Current Analog Inputs (pin 2, 3) Error Amp. Output Sink Current Power Dissipation
KA3882/3
94
DMAX
KA3884/5
47
DMIN
ï
ï
TOTAL STANDBY CURRENT
Start-Up Current
IST
ï
ï
Operating Supply Current
ICC
VPIN2 = VPIN3 = 0V
ï
VCC Zener Voltage
VZ
ICC = 25mA
ï
Adjust VCC above the start threshold bifore setting at 15V
Characteristic
Symbol
ห้องสมุดไป่ตู้
Test Conditions
REFERENCE SECTION Output Voltage Line Regulation Load Regulation Output Short Circuit OSILLATOR SECTION Initial Accuracy Voltage Stability Amplitude Discharge Current CURRENT SENSE SECTION Gain Maximum Input Signal
96
100
%
48
50
%
ï
0
%
0.2
0.4
mA
11
17
mA
29
ï
V
元器件交易网
TRADEMARKS
The following are registered and unregistered trademarks Fairchild Semiconductor owns or is authorized to use and is not intended to be an exhaustive list of all such trademarks.
Symbol
VCC IO VI(ANA) ISINK(EA) PD
Value
30 +1 - 0.3 to 6.3 10 1
Unit
V A V mA W
ELECTRICAL CHARACTERISTICS
` Î Î (VCC = 15V, RT = 10K , CT = 3.3nF, TA = 0 to + 85 , Unless otherwise specified)
Î TJ = 25 , Pin4 = 2V
GV VI(MAX) PSRR
IBIAS TD
(NOTE 2, 3) VPIN1 = 5V(NOTE 2) VCC = 12V to 25V
(NOTE 1, 2)
ï
VPIN3 = 0V to 2V (NOTE1)
Min Typ Max Unit
4.9
5.0
5.1
` VPIN2 = 2.3V