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Part Manufacturer Description Datasheet Download Buy Part
LT1017MJ8/883 Linear Technology LT1017 - Micropower Dual Comparator; Package: CERDIP; Pins: 8; Temperature: Military
LM108AJ8 Linear Technology LM108A - Operational Amplifiers; Package: CERDIP; Pins: 8; Temperature: Military
LT1175CDWF#MILDWF Linear Technology LT1175 - 500mA Negative Low Dropout Micropower Regulator; Pins: 5
LT1018MJ8/883 Linear Technology LT1018 - Micropower Dual Comparator; Package: CERDIP; Pins: 8; Temperature: Military
LTC1041MJ8/883 Linear Technology LTC1041 - BANG-BANG Controller; Package: CERDIP; Pins: 8; Temperature: Military
LTC2905HDDB#TRPBF Linear Technology LTC2905 - Precision Dual Supply Monitor with Pin-Selectable Thresholds; Package: DFN; Pins: 8; Temperature Range: -40°C to 125°C

uc3842 theory of pin diagram Datasheets Context Search

Catalog Datasheet MFG & Type PDF Document Tags
2007 - C5100 MOSFET

Abstract: UC3842 smps design UC3842 step up converter flyback smps uc3845 UC3842 smps project AN1889 SMPS CIRCUIT DIAGRAM UC3842 pcb design on uc3842 transistor c5100 NF-2000
Text: circuit as been modeled with the equivalent schematic diagram of the transformer with its secondary , the complete schematic diagram of the realized demo board reported in Figure 11. 7.1 Primary , SMPS. The voltage reference of the internal error amplifier is set in the UC3842 at 2.5V, consequently , =75%, from the datasheet of the UC3842 we can set: 7.4 R15=2.2 k C6=15 nF Current sensing and , that imposed by (R1+R2) and C10. C4 must be able to supply UC3842 till the steady-state behavior of


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PDF AN1889 STC03DE170HV C5100 MOSFET UC3842 smps design UC3842 step up converter flyback smps uc3845 UC3842 smps project AN1889 SMPS CIRCUIT DIAGRAM UC3842 pcb design on uc3842 transistor c5100 NF-2000
2002 - 12v dc power supply with uc3845

Abstract: uc3843 dc dc converter UC3845 dc dc applications uc3842 uc3845 smps UC3842 smps design UC3844 application note uc3843 dc 5v UC3843 UC3843 application note
Text: output for driving a Power MOSFET. The UC3842 and UC3844 have UVLO thresholds of 16V (on) and 10V (off , -SOP 1 Internal Block Diagram * NORMALLY 8DIP/8SOP PIN NO. * ( ) IS 14SOP PINNO. * TOGGLE FLIP , adjustable ramp to pin 3. 4 UC3842 /UC3843/UC3844/UC3845 UC3842 /44 UC3843/45 Figure 2. Under , Techniques 6 UC3842 /UC3843/UC3844/UC3845 Shutdown of the UC3842 can be accomplished by two methods , causes the output of the PWM comparator to be high (refer to block diagram ). The PWM latch is reset


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PDF UC3842/UC3843/UC3844/UC3845 UC3842/UC3843/UC3844/UC3845 UC3842 UC3844 UC3843 UC3845 12v dc power supply with uc3845 uc3843 dc dc converter UC3845 dc dc applications uc3845 smps UC3842 smps design UC3844 application note uc3843 dc 5v UC3843 application note
2000 - uc3842 circuit diagram

Abstract: UC3842 mosfet driver UC3842 uc3844 smps power supply uc3844 reference smps uc3845 smps SMPS CIRCUIT DIAGRAM UC3842 power supply with uc3842 with circuit diagram uc3845 applications UC3843
Text: Internal Block Diagram Rev. 5.0 ©2000 Fairchild Semiconductor International UC3842 /UC3843/UC3844 , to sample the oscillator waveform and apply an adjustable ramp to pin 3. 4 UC3842 /UC3843 , RT > 5k) Figure 8. Shutdown Techniques 6 UC3842 /UC3843/UC3844/UC3845 Shutdown of the UC3842 can be accomplished by two methods; either raise pin 3 above 1V or pull pin 1 below a voltage two , www.fairchildsemi.com UC3842 /UC3843/UC3844/UC3845 SMPS Controller Features Description


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PDF UC3842/UC3843/UC3844/UC3845 UC3842/UC3843/UC3844/UC3845 TheUC3842 UC3844 UC3843 UC3845 uc3842 circuit diagram UC3842 mosfet driver UC3842 uc3844 smps power supply uc3844 reference smps uc3845 smps SMPS CIRCUIT DIAGRAM UC3842 power supply with uc3842 with circuit diagram uc3845 applications
1994 - UFN432

Abstract: coilcraft e-4140-b uc3842 UC3842 mosfet driver transistor UFN432 power supply with uc3842 5v power supply with uc3842 mosfet UFN432 E-4140-B off-line flyback regulator uc3842
Text: UC3842 DESCRIPTION PIN CONFIGURATIONS The UC3842 is available in an 8- Pin mini-DIP the necessary , · Off-line switched mode power supplies · DC-to-DC converters UC3842 BLOCK DIAGRAM 7(11) (12)7 , not 100% tested in production. 2. Parameter measured at trip point of latch with VPIN 2=0. DV PIN 1 , 4.7k SHUTDOWN ISENSE 500 SHUTDOWN TO CURRENT SENSE RESISTOR NOTE: Shutdown of the UC3842 , source and sink high peak current from a capacitive load, such as the gate of a power MOSFET


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PDF UC3842 UC3842 40kHz 90VAC: 130VAC: NE555 UC3842s UFN432 coilcraft e-4140-b UC3842 mosfet driver transistor UFN432 power supply with uc3842 5v power supply with uc3842 mosfet UFN432 E-4140-B off-line flyback regulator uc3842
u3844

Abstract: power supply with uc3842 with circuit diagram uc2842 12v dc power supply with uc3845 off-line flyback regulator uc3845 power supply with uc2842 uc3842 pwm uc2842 uc2845n uc3842 circuit diagram
Text: ranges. The UC3842 and UC3844 have UVLO thresholds of 16V (on) and 10V (off), ideally suited off-line , dock cycle. DESCRIPTION The UC3842 /3/4/5fam8y of control ICs provides the necessary features to , minor amounts of current. Pin 6 should be shunted to ground with a bleeder resistor Figure 3 : Current , an adjustable ramp to pin 3. -^COMP SHUT DOW Shutdown of the UC2842 can be accomplished by , . Either method cause the output of the PWM com parator to be high (refer to block diagram ). The PWM latch


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PDF UC2842/3/4/5 UC3842/3/4/5 007bbS3 u3844 power supply with uc3842 with circuit diagram uc2842 12v dc power supply with uc3845 off-line flyback regulator uc3845 power supply with uc2842 uc3842 pwm uc2842 uc2845n uc3842 circuit diagram
flyback uc3843

Abstract: u3844 off-line flyback regulator uc3845 uc3843 flyback supply UC3842 power supply with uc2842 flyback uc3842 uc3842 circuit diagram off-line flyback regulator uc3844 off-line flyback regulator uc3842
Text: REFERENCE 500 KHz OPERATION LOW RO ERROR AMP DESCRIPTION The UC3842 /3/4/5family of control ICs , . BLOCK DIAGRAM (toggle flip flop used only in U3844 and UC3845) May 1995 1/11 UC2842/3/4/5- UC3842 , amounts of current. Pin 6 should be shunted to ground with a bleeder resistor to prevent activating , of the UC2842 can be accomplished by two methods ; either raise pin 3 above 1V or pull pin 1 below , UC2842/3/4/5 UC3842 /3/4/5 CURRENT MODE PWM CONTROLLER . . . . . . . . . . .


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PDF UC2842/3/4/5 UC3842/3/4/5 UC3842/3/4/5family flyback uc3843 u3844 off-line flyback regulator uc3845 uc3843 flyback supply UC3842 power supply with uc2842 flyback uc3842 uc3842 circuit diagram off-line flyback regulator uc3844 off-line flyback regulator uc3842
uc3642

Abstract: UC3842 power supply with uc3842 uc3842 circuit diagram flyback uc3842 power supply flyback uc3842 power supply with uc3842 with circuit diagram ac regulator uc3842 uc3642 application uc3842 application note
Text: DESCRIPTION The UC3842 is available in an 8- Pin mini-DIP the necessary features to implement off-line , €¢ 400kHz operation, guaranteed min UC3842 PIN CONFIGURATIONS N Package COMP E J] VREF VFB H H Vcc , APPLICATIONS • Off-line switched mode power supplies • DC-to-DC converters UC3842 BLOCK DIAGRAM <12>7 , . Either method causes the output of the PWM comparator to be high (refer to Block Diagram ). The PWM latch , totem-pole output designed to source and sink high peak current from a capacitive load, such as the gate of a


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PDF UC3842 UC1901 August31 711002b 0G7T43D UC3842 nes55 uc3642 power supply with uc3842 uc3842 circuit diagram flyback uc3842 power supply flyback uc3842 power supply with uc3842 with circuit diagram ac regulator uc3842 uc3642 application uc3842 application note
2002 - uc3842

Abstract: 12v dc power supply with uc3845 uc3843 uc3845 application smps uc3843 dc dc converter UC3844 uc3845 reference smps uc3845 uc3844 smps power supply uc3842 smps
Text: driving a Power MOSFET. The UC3842 and UC3844 have UVLO thresholds of 16V (on) and 10V (off). The UC3843 , Block Diagram * NORMALLY 8DIP/8SOP PIN NO. * ( ) IS 14SOP PINNO. * TOGGLE FLIP FLOP USED ONLY IN , sample the oscillator waveform and apply an adjustable ramp to pin 3. 4 UC3842 /UC3843/UC3844 , RT > 5k) Figure 8. Shutdown Techniques 6 UC3842 /UC3843/UC3844/UC3845 Shutdown of the UC3842 can be accomplished by two methods; either raise pin 3 above 1V or pull pin 1 below a voltage two


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PDF UC3842/UC3843/UC3844/UC3845 500KHz UC3842/UC3843/UC3844/UC3845 UC3842 UC3844 UC3843 UC3845 12v dc power supply with uc3845 uc3845 application smps uc3843 dc dc converter uc3845 reference smps uc3844 smps power supply uc3842 smps
1994 - flyback uc3843

Abstract: u3844 forward converter UC3843 off-line flyback regulator uc3845 power supply with uc2842 flyback uc3842 uc3842 circuit diagram UC3845 dc dc applications uc3843 flyback supply forward converter uc3844
Text: REFERENCE 500 KHz OPERATION LOW RO ERROR AMP DESCRIPTION The UC3842 /3/4/5 family of control ICs , . The UC3842 and UC3844 have UVLO thresholds of 16V (on) and 10V (off), ideally suited off-line , to sink minor amounts of current. Pin 6 should be shunted to ground with a bleeder resistor to , Techniques. Shutdown of the UC2842 can be accomplished by two methods ; either raise pin 3 above 1V or pull pin 1 below a voltage two diode drops above ground. Either method cause the output of the PWM


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PDF UC2842/3/4/5 UC3842/3/4/5 UC3842/3/4/5 flyback uc3843 u3844 forward converter UC3843 off-line flyback regulator uc3845 power supply with uc2842 flyback uc3842 uc3842 circuit diagram UC3845 dc dc applications uc3843 flyback supply forward converter uc3844
power supply with uc2842

Abstract: coilcraft e-4140-b UFN432 UC3842 mosfet driver UC2842 coilcraft e4140 of ic uc3842 power supply on ic uc3842 uc3842 application circuit UC1842N
Text: UC1842 UC2842 UC3842 Current-Mode PWM Controller DESCRIPTION The UC1842 family of control ICs , "iol output "TI gnd -5-, power -2J gnd BLOCK DIAGRAM BDM5C1S note: Pin numbers in parentheses refer , , UC2842, UC3842 UNDERVOLTAGE LOCKOUT ON, OFF COMMAND TG REST OF IC UC18«2 Von 16V Vqff 10V £T , tc11670s NOTE: Shutdown of the UC1842 can be accomplished by two methods; either raise Pin 3 above 1V or pull Pin 1 below a voltage two diode drops above ground. Either method causes the output of the PWM


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PDF UC1842 UC2842 UC3842 UC1901 UC1842, UC2842, UC1842S power supply with uc2842 coilcraft e-4140-b UFN432 UC3842 mosfet driver coilcraft e4140 of ic uc3842 power supply on ic uc3842 uc3842 application circuit UC1842N
1994 - flyback uc3842

Abstract: UC3843 u3844 flyback uc3843 UC3843 circuit diagram uc3843 dc 5v off-line flyback regulator uc3844 UC2842 power supply with uc3842 off-line flyback regulator uc3845
Text: REFERENCE 500 KHz OPERATION LOW RO ERROR AMP DESCRIPTION The UC3842 /3/4/5family of control ICs , . BLOCK DIAGRAM (toggle flip flop used only in U3844 and UC3845) May 1995 1/11 UC2842/3/4/5- UC3842 , amounts of current. Pin 6 should be shunted to ground with a bleeder resistor to prevent activating , of the UC2842 can be accomplished by two methods ; either raise pin 3 above 1V or pull pin 1 below , UC2842/3/4/5 UC3842 /3/4/5 CURRENT MODE PWM CONTROLLER . . . . . . . . . . .


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PDF UC2842/3/4/5 UC3842/3/4/5 UC3842/3/4/5family flyback uc3842 UC3843 u3844 flyback uc3843 UC3843 circuit diagram uc3843 dc 5v off-line flyback regulator uc3844 UC2842 power supply with uc3842 off-line flyback regulator uc3845
2002 - uc3845 application smps

Abstract: SMPS CIRCUIT DIAGRAM UC3842 uc3844 smps power supply uc3843 dc dc converter UC3842 smps design uc3842 uc3844 reference smps uc3843 UC3842 smps diagram UC3844 application note
Text: driving a Power MOSFET. The UC3842 and UC3844 have UVLO thresholds of 16V (on) and 10V (off). The UC3843 , Block Diagram * NORMALLY 8DIP/8SOP PIN NO. * ( ) IS 14SOP PINNO. * TOGGLE FLIP FLOP USED ONLY IN , sample the oscillator waveform and apply an adjustable ramp to pin 3. 4 UC3842 /UC3843/UC3844 , RT > 5k) Figure 8. Shutdown Techniques 6 UC3842 /UC3843/UC3844/UC3845 Shutdown of the UC3842 can be accomplished by two methods; either raise pin 3 above 1V or pull pin 1 below a voltage two


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PDF UC3842/UC3843/UC3844/UC3845 500KHz UC3842/UC3843/UC3844/UC3845 UC3842 UC3844 UC3843 UC3845 uc3845 application smps SMPS CIRCUIT DIAGRAM UC3842 uc3844 smps power supply uc3843 dc dc converter UC3842 smps design uc3844 reference smps UC3842 smps diagram UC3844 application note
2001 - UC3842 smps design

Abstract: UC3843 application note uc3844 smps power supply UC3844 application note uc3845 smps UC3845 application note uc3845 PWM power supply application note UC3842 mosfet driver uc3845 application smps 5v power supply with uc3842
Text: Block Diagram Rev. 1.0.0 ©2001 Fairchild Semiconductor Corporation UC3842 /UC3843/UC3844/UC3845 , potentiometer are used to sample the oscillator waveform and apply an adjustable ramp to pin 3. 4 UC3842 , RT > 5k) Figure 8. Shutdown Techniques 6 UC3842 /UC3843/UC3844/UC3845 Shutdown of the UC3842 can be accomplished by two methods; either raise pin 3 above 1V or pull pin 1 below a voltage two , www.fairchildsemi.com UC3842 /UC3843/UC3844/UC3845 SMPS Controller Features Description ·


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PDF UC3842/UC3843/UC3844/UC3845 UC3842/UC3843/UC3844/UC3845 TheUC3842 UC3844 UC3843 UC3845 UC3842 smps design UC3843 application note uc3844 smps power supply UC3844 application note uc3845 smps UC3845 application note uc3845 PWM power supply application note UC3842 mosfet driver uc3845 application smps 5v power supply with uc3842
2002 - Not Available

Abstract: No abstract text available
Text: of the UC3842 can be accomplished by two methods; either raise pin 3 above 1V or pull pin 1 below a , thresholds of 16V (on) and 10V (off). The UC3843 and UC3845 are 8.5V(on) and 7.9V (off). The UC3842 and , -SOP 8-DIP 1 1 14-SOP 1 Internal Block Diagram * NORMALLY 8DIP/8SOP PIN NO. * ( ) IS , used to sample the oscillator waveform and apply an adjustable ramp to pin 3. 4 UC3842 /UC3843 , Features Description • • • • The UC3842 /UC3843/UC3844/UC3845 are fixed


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PDF UC3842/UC3843/UC3844/UC3845 UC3842 UC3844 UC3843 UC3845
1995 - UC3842 buck

Abstract: uc3842 flyback constant current boost uc3842 application note UC3842 note buck converter non isolated buck uc3842 application note uc3842 constant current flyback uc3842 uc3842 equivalent flyback transformer design uc3842 flyback uc3842 application note
Text: of a modular approach to power supply design. FUNCTIONAL DESCRIPTION A block diagram of the UC3842 , Shutdown of the UC3842 can be accomplished by two methods ; either raise pin 3 above 1 V or pull pin 1 , APPLICATION NOTE UC3842 PROVIDES LOW-COST CURRENT-MODE CONTROL The fundamental challenge of , performance advantages of current-mode operation. In addition, the UC3842 is optimized for efficient power , a functionaldescription of the UC3842 and suggests how to incorporate the IC into practical power


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PDF UC3842 UC3842 buck uc3842 flyback constant current boost uc3842 application note UC3842 note buck converter non isolated buck uc3842 application note uc3842 constant current flyback uc3842 uc3842 equivalent flyback transformer design uc3842 flyback uc3842 application note
1996 - EC35-3c8

Abstract: EC35 TRANSFORMER uc38428 HIGH FREQUENCY Transformer ec35 uc3842 flyback constant current uc3842 application note UC3842 boost converter flyback transformer design uc3842 flyback uc3842 power supply flyback uc3842 sync
Text: Pin 4 of the UC3842 . A pulse of 1V peak nominal amplitude and 100ns minimum is required to trigger , and 0.7V negative on the feedback line. Open loop testing of the UC3842 in a current mode supply may , . UC3842 Pin Functions Pin 1: Error amplifier output. (See Figure 1) Closed loop gain and any additional , the D package. Figure 1. UC3842 Block Diagram 1991 Dec 2 Rev. 1: 1996 Apr Philips , . Pin 6: Switching drive output. This output stage provides a maximum of 200mA source and sink current


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PDF AN1272 UC3842 100pF SL01097 PBYR735 EC35-3c8 EC35 TRANSFORMER uc38428 HIGH FREQUENCY Transformer ec35 uc3842 flyback constant current uc3842 application note UC3842 boost converter flyback transformer design uc3842 flyback uc3842 power supply flyback uc3842 sync
1998 - flyback uc3843

Abstract: u3844 uc3842 circuit diagram off-line flyback regulator uc3845 UC3843 power flyback UC2845N uc3843 connections flyback uc3842 power supply uc3843 flyback supply flyback uc3842
Text: . BLOCK DIAGRAM (toggle flip flop used only in U3844 and UC3845) October 1998 1/11 UC2842/3/4/5- UC3842 , amounts of current. Pin 6 should be shunted to groundwith a bleederresistor to preventactivating the , of the UC2842 can be accomplished by two methods; either raise pin 3 above1V or pull pin 1 below a , UC2842/3/4/5 UC3842 /3/4/5 ® CURRENT MODE PWM CONTROLLER . . . . . . . . . . . , REFERENCE 500 KHz OPERATION LOW RO ERROR AMP DESCRIPTION TheUC3842/3/4/5family of controlICs provides


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PDF UC2842/3/4/5 UC3842/3/4/5 TheUC3842/3/4/5family flyback uc3843 u3844 uc3842 circuit diagram off-line flyback regulator uc3845 UC3843 power flyback UC2845N uc3843 connections flyback uc3842 power supply uc3843 flyback supply flyback uc3842
flyback uc3843

Abstract: UC3843 circuit diagram uc3844n M UC3845M UC2842D UC3845 dc dc applications u3844 UC3842 Open Loop Circuit diagram DATA UC3843 uc3843 flyback supply
Text: lockout thresholds and maximum duty cycle ranges. The UC3842 and UC3844 have UVLO thresholds of 16V (on , UC3845 are 8.5 V and 7.9 V. The UC3842 and UC3843 can operate to duty cycles approaching 100%. A range of , flop which blanks the output off every other clock cycle. DESCRIPTION The UC3842 /3/4/5family of , biased to sink minor amounts of current. Pin 6 should be shunted to ground with a bleeder resistor Figure , method cause the output of the PWM com parator to be high (refer to block diagram ). The PWM latch is


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PDF K00CC3 flyback uc3843 UC3843 circuit diagram uc3844n M UC3845M UC2842D UC3845 dc dc applications u3844 UC3842 Open Loop Circuit diagram DATA UC3843 uc3843 flyback supply
1999 - irf840 uc3842

Abstract: uc3842 theory of pin diagram boost uc3842 application note uc3842 battery charger UC3842 boost converter CT 1975 circuit pulse powersystems IEC1000-3-2 ETD-29 power supply using uc3842
Text: such feature is a sawtooth current flowing out of the feedback pin (FB), which provides a slope , features similar to the UC3842 (please refer to UC3842 Comparison Section). BLOCK DIAGRAM VCC ICT , duty cycle of the output signal is typically 89%. GROUND PIN (GND) This pin provides ground return for the IC. OVERVOLTAGE PROTECTION INPUT PIN (OVP) This pin provides a means of turning off the external transistor drive output independent of the PWM loop. This pin is normally used for overvoltage


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PDF TK75005D IEC1000-3-2 TK75005 flowi28-2375 IC-xxx-TK75005 0798O0 irf840 uc3842 uc3842 theory of pin diagram boost uc3842 application note uc3842 battery charger UC3842 boost converter CT 1975 circuit pulse powersystems IEC1000-3-2 ETD-29 power supply using uc3842
1999 - irf840 uc3842

Abstract: uc3842 theory of pin diagram uc3842 power factor CT 1975 circuit uc3842 battery charger UC3842 mosfet driver power supply with uc3842 FR51A HFA04TB60 ETD-29
Text: feature is a sawtooth current flowing out of the feedback pin (FB), which provides a slope compensation , ) This pin drives the external MOSFET with a totem pole output stage capable of sinking or sourcing a peak current of about 1 A. In standby mode, the DRV pin can sink about 5 mA while keeping the drive , on by leakage currents. The maximum duty cycle of the output signal is typically 89%. GROUND PIN , frequency as measured at the DRV pin . As the frequency of operation increases above 200 kHz, the maximum


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PDF TK75005 IEC1000-3-2 TK75005 no2375 IC-xxx-TK75005 0798O0 irf840 uc3842 uc3842 theory of pin diagram uc3842 power factor CT 1975 circuit uc3842 battery charger UC3842 mosfet driver power supply with uc3842 FR51A HFA04TB60 ETD-29
1998 - Switching Power Supply Schematic Diagram uc3842

Abstract: schematic diagram 48v regulator uc3842 UC3828 Snubber circuits theory 12V DC to 1.5v dC converter schematic diagram uc3842 theory of pin diagram Snubber circuits theory, design and application U unitrode Applications Note schematic diagram 48v dc regulator uc3842 unitrode
Text: ENABLE pin rises above 2.1V and off when below 2.0V. The SHUTDN pin provides added protection by shutting off the IC when greater than 1.5V is present on the pin . The pulse by pulse current limit of 1V , the output section as part of the control loop. This allows parallel operation of several modules , can see the various functions of the UC3828. Substitution of parts will result in a design which may suit other requirements. To more fully understand the design and specifications of this demo board


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PDF DN-55 UC3828 UC3907 250kHz UC3828. UC3842" U-147. SEM-900 U-110. Switching Power Supply Schematic Diagram uc3842 schematic diagram 48v regulator uc3842 Snubber circuits theory 12V DC to 1.5v dC converter schematic diagram uc3842 theory of pin diagram Snubber circuits theory, design and application U unitrode Applications Note schematic diagram 48v dc regulator uc3842 unitrode
flyback uc3842 power supply

Abstract: UC3842D off-line flyback regulator uc3845 5-UC2842 UC2843 off-line flyback regulator uc3842 UC284X uc2845n UC2842 UC3843
Text: extra-biased to sink minor amounts of current. Pin 6 neous leakage currents, should be shunted to ground with a , of the UC1842 can be accomplished by two methods ; either raise pin 3 above 1V or pull pin 1 below a , 7*1^237 0055431 1 SCS-THOMSON ¡j gig«™* ILIÛTO©«!_ UC3842 /3/4/5 S G S-TH0MS0N 30E , ■LOW Ro ERROR AMP DESCRIPTION The UC1842/3/4/5 family of control ICs provides the necessary , MOSFETs, is low in the off-state. Differences between members of this family are the under-voltage lockout


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PDF UC3842/3/4/5 UC1842/3/4/5 UC1842/3 flyback uc3842 power supply UC3842D off-line flyback regulator uc3845 5-UC2842 UC2843 off-line flyback regulator uc3842 UC284X uc2845n UC2842 UC3843
Not Available

Abstract: No abstract text available
Text: /4/5 UC3842 /3/4/5 UNDER-VOLTAGE LOCKOUT Vcc Vcc ON/OFF COMMAND TO REST OF IC - , _ During under-voltage lock-out, the output driver is biased to sink minor amounts of current. Pin , ground. Either method causes the out­ put of the PWM comparator to be high (refer to block diagram ). , IN T E G R A T E D C IR C U IT S UC1842/3/4/5 UC2842/3/4/5 UC3842 /3/4/5 U N IT R O D E Current Mode PWM Controller FEATURES DESCRIPTION The UC1842/3/4/5 family of control ICs provides the


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PDF UC1842/3/4/5 UC2842/3/4/5 UC3842/3/4/5 UC1842/3/4/5 95VAC 130VA SD945 z/60Hz) 40kHz 100mV
1999 - irf840 uc3842

Abstract: uc3842 theory of pin diagram
Text: flowing out of the feedback pin (FB), which provides a slope compensation ramp (in current mode , pin drives the external MOSFET with a totem pole output stage capable of sinking or sourcing a peak current of about 1 A. In standby mode, the DRV pin can sink about 5 mA while keeping the drive pin pulled , currents. The maximum duty cycle of the output signal is typically 89%. GROUND PIN (GND) This pin provides ground return for the IC. OVERVOLTAGE PROTECTION INPUT PIN (OVP) This pin provides a means of turning off


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PDF TK75005D IEC1000-3-2 TK75005 IC-xxx-TK75005 0798O0 irf840 uc3842 uc3842 theory of pin diagram
1995 - uc3842 flyback constant current

Abstract: UC3842 boost converter boost uc3842 application note uc3842 application note uc3842 equivalent flyback transformer design uc3842 uc3842 application circuit uc3842 constant current buck uc3842 application note flyback uc3842 application note
Text: averted. 8/16 Shutdown of the UC3842 can be accomplished by two methods ; either raise pin 3 above , APPLICATION NOTE UC3842 PROVIDES LOW-COST CURRENT-MODE CONTROL The fundamental challenge of , performance advantages of current-mode operation. In addition, the UC3842 is optimized for efficient power , a functional description of the UC3842 and suggests how to incorporate the IC into practical power , pitfalls discussed. The final section presents designs of two power supplies utilizing UC3842 control


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PDF UC3842 uc3842 flyback constant current UC3842 boost converter boost uc3842 application note uc3842 application note uc3842 equivalent flyback transformer design uc3842 uc3842 application circuit uc3842 constant current buck uc3842 application note flyback uc3842 application note
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