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Part Manufacturer Description Datasheet Download Buy Part
UC3842D8 Texas Instruments Current-Mode PWM Controller 8-SOIC 0 to 70
UC3842AD Texas Instruments Current Mode PWM Controller 14-SOIC 0 to 70
UC3842AN Texas Instruments Current Mode PWM Controller 8-PDIP 0 to 70
UC3842D8G4 Texas Instruments Current-Mode PWM Controller 8-SOIC 0 to 70
UC3842AD8 Texas Instruments Current Mode PWM Controller 8-SOIC 0 to 70
UC3842ANG4 Texas Instruments Current Mode PWM Controller 8-PDIP 0 to 70

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1999 - 24v dc power supply with uc3842

Abstract:
Text: known as current mode control, and a novel PWM solution, the UC3842 controller. This IC contained , precision reference and a high current totem-pole output. The popular UC3842 control circuit architecture , delays in comparison to the bipolar UC3842 devices. These sophisticated new BiCMOS controllers, the , standard features and pinouts to the bipolar UC3842 /3/4/5 PWMs and are enhanced replacements in many , .Oscillator timing component values IN-CIRCUIT ADVANTAGES vs. UC3842 6.Reference voltage (UCC3803 and 05) ·


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PDF U-133A UC3842 24v dc power supply with uc3842 unitrode Applications Note U-96A UC3842 note buck converter non isolated 24v to 12v dc power supply with uc3842 uc3842 dc/dc converter 24v application circuits U-96A UCC3804 application UC3842 application 24V boost uc3842 application note uc3842 unitrode 100 watt
1997 - UC3842 note buck converter non isolated

Abstract:
Text: known as current mode control, and a novel PWM solution, the UC3842 controller. This IC contained , precision reference and a high current totem-pole output. The popular UC3842 control circuit architecture , delays in comparison to the bipolar UC3842 devices. These sophisticated new BiCMOS controllers, the , standard features and pinouts to the bipolar UC3842 /3/4/5 PWMs and are enhanced replacements in many , .Oscillator timing component values IN-CIRCUIT ADVANTAGES vs. UC3842 6.Reference voltage (UCC3803 and 05) ·


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PDF U-133A UC3842 hU-97 DN-42 UCC3802 UC3842 note buck converter non isolated uc3842 unitrode 100 watt U-96A boost uc3842 application note UC3842 application 24V UCC3801 schematic unitrode Applications Note U-96A ucc3804 24v dc power supply with uc3842 buck uc3842 application note
uc3842 unitrode 100 watt

Abstract:
Text: Reference · Same Pinout as UC3842 and UC3842A Part Number UCCx800 UCCx801 UCCx802 UCCx803 UCCx804 , advance technique known as current mode control, and a novel PWM solution, the UC3842 controller. This IC , protection, a precision reference and a high current totem-pole output. The popular UC3842 control circuit , propagation delays in comparison to the bipolar UC3842 devices. These sophisticated new BiCMOS controllers , standard features and pinouts to the bipolar UC3842 /3/4/5 PWMs and are enhanced replacements in many


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PDF UCC1800/1/2/3/4/5 UCC2800/1/2/3/4/5 UCC3800/1/2/3/4/5 100mA UCC1800/1/2/3/4/5 500mA UC3842 UC3842A/5 U-132. UCC3802 uc3842 unitrode 100 watt 24v dc power supply with uc3842 UCC2800 application note buck schematic UC3842 note buck converter non isolated UNITRODE applications handbook uc3842 -96 UC3843 in non isolated flyback converter UC3843 application note buck uc3843 12v 5a supply design UC3843 in non isolated boost converter UC3842 application 24V
2002 - 12v dc power supply with uc3845

Abstract:
Text: www.fairchildsemi.com UC3842 /UC3843/UC3844/UC3845 SMPS Controller Features Description · · · · The UC3842 /UC3843/UC3844/UC3845 are fixed frequencycurrent-mode PWM controller. They are , output for driving a Power MOSFET. The UC3842 and UC3844 have UVLO thresholds of 16V (on) and 10V (off). The UC3843 and UC3845 are 8.5V(on) and 7.9V (off). The UC3842 and UC3843 can operate within 100 , FLOP USED ONLY IN UC3844, UC3845 Rev. 1.0.1 ©2002 Fairchild Semiconductor Corporation UC3842


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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 UC3842 smps design uc3845 smps UC3844 application note uc3843 dc 5v UC3843 application note
uc3842

Abstract:
Text: DN-89 UNITRQOE Design Note Comparing the UC3842 , UCC3802, and UCC3809 Primary Side PWM Controllers by Lisa Dinwoodie Introduction Despite the fact that the UC3842 and the UCC3802 are pin for , help the user transition from either the UC3842 or the UCC3802 to the UCC3809 in an existing design , and Shutdown The UC3842 requires an external PNP, resistor, and capacitor in order to have full , as in the UC3842 and the UCC3802. Bias The BiCM OS design of the UCC3802 and the UCC3809 result


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PDF DN-89 UC3842, UCC3802, UCC3809 UC3842 UCC3802 UC3842 soft start UC3842 p pwm flyback uc3842 uc3842 converter design UC3842 flyback DN-89 of ic uc3842 M/UC3842 v1.6
2000 - uc3842 circuit diagram

Abstract:
Text: www.fairchildsemi.com UC3842 /UC3843/UC3844/UC3845 SMPS Controller Features Description · · · · The UC3842 /UC3843/UC3844/UC3845 are fixed frequency current-mode PWM controller. They , ) The UC3843 and UC3845 are 8.5V (on) and 7.9V (off) The UC3842 and UC3843 can operate within 100 , Internal Block Diagram Rev. 5.0 ©2000 Fairchild Semiconductor International UC3842 /UC3843/UC3844 , W UC3842 /UC3843/UC3844/UC3845 Electrical Characteristics (VCC=15V, RT=10K, CT=3.3nF, TA= 0


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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
2002 - uc3842

Abstract:
Text: www.fairchildsemi.com UC3842 /UC3843/UC3844/UC3845 SMPS Controller Features · · · · Low Start , The UC3842 /UC3843/UC3844/UC3845 are fixed frequencycurrent-mode PWM controller. They are specially , driving a Power MOSFET. The UC3842 and UC3844 have UVLO thresholds of 16V (on) and 10V (off). The UC3843 and UC3845 are 8.5V(on) and 7.9V (off). The UC3842 and UC3843 can operate within 100% duty cycle. The , UC3844, UC3845 Rev. 1.0.1 ©2002 Fairchild Semiconductor Corporation UC3842 /UC3843/UC3844/UC3845


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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 uc3844 smps power supply uc3845 reference smps application notes uc3842
1998 - 5v power supply with uc3842

Abstract:
Text: DN-42A Design Notes DESIGN CONSIDERATIONS FOR TRANSITIONING FROM UC3842 TO THE NEW UCC3802 , 500µA Pin out Compatible with UC3842 and UC3842A families 5 Volt Operation (UCC3803, UCC3805 , The UCC3802 family of devices are pin out compatible with the UC3842 and UC3842A families however , inserting the device into a UC3842 /42A family socket: 1. Maximum supply voltage 2. Turn-on and Turn-off , with the UC3842 family is an open collector in parallel with a current source. The UCC3802 has


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PDF DN-42A UC3842 UCC3802 UCC3804 UCC3803 UCC3805 5v power supply with uc3842 power supply with uc3842 power supply on ic uc3842 power supply design uc3842 flyback uc3842 Datasheet of ic uc3842 power supply using uc3842 UC3842 p pwm flyback uc3842 power supply
JC3842

Abstract:
Text: DN-42A UIMITRODE Design Notes DESIGN CONSIDERATIONS FOR TRANSITIONING FROM UC3842 TO THE NEW , current. The error amplifier associated with the UC3842 family is an open collector in parallel with a , bandwidth error amplifier versus 1 MHz on the UC3842 . Feedback techniques are identical to the UC3842 family , predecessor. The UC3842 current sense input connects to only the PWM comparator. The UCC3802 Current Sense , the UCC3802 family is typically 1.65 V/V versus typically 3 V/V with the UC3842 family. The U


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PDF DN-42A UC3842 UCC3802 UCC3804 UCC3803 UCC3805 JC3842 DN-42A 5v power supply with uc3842 UC3842 soft start pwm using uc3842 circuit power supply using uc3842
1999 - ucc3804

Abstract:
Text: DN-42A Design Notes DESIGN CONSIDERATIONS FOR TRANSITIONING FROM UC3842 TO THE NEW UCC3802 , 500µA Pin out Compatible with UC3842 and UC3842A families 5 Volt Operation (UCC3803, UCC3805 , The UCC3802 family of devices are pin out compatible with the UC3842 and UC3842A families however , inserting the device into a UC3842 /42A family socket: 1. Maximum supply voltage 2. Turn-on and Turn-off , with the UC3842 family is an open collector in parallel with a current source. The UCC3802 has


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PDF DN-42A UC3842 UCC3802 ucc3804 power supply design uc3842 flyback uc3842 power supply using uc3842 of ic uc3842 UC3842 p pwm power supply with uc3842 flyback uc3842 power supply
u3844

Abstract:
Text: {Z T SGS-THOMSON UC2842/3/4/5 *71. Mg^lilLlligirMn©!_ UC3842 /3/4/5 CURRENT MODE PWM , ranges. The UC3842 and UC3844 have UVLO thresholds of 16V (on) and 10V (off), ideally suited off-line applications The corresponding thresholds for the UC3843 and UC3845 are 8.5 V and 7.9 V. The UC3842 and UC3843 , dock cycle. DESCRIPTION The UC3842 /3/4/5fam8y of control ICs provides the necessary features to , SENSE COMPARATOR U C 3842 May 1995 1/11 7^537 D07bb43 m UC2842/3/4/5- UC3842 /3/4/5


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

Abstract:
Text: UC2842/3/4/5 UC3842 /3/4/5 CURRENT MODE PWM CONTROLLER . . . . . . . . . . . , REFERENCE 500 KHz OPERATION LOW RO ERROR AMP DESCRIPTION The UC3842 /3/4/5family of control ICs , family are the under-voltage lockout thresholds and maximum duty cycle ranges. The UC3842 and UC3844 , corresponding thresholds for the UC3843 and UC3845 are 8.5 V and 7.9 V. The UC3842 and UC3843 can operate to , . BLOCK DIAGRAM (toggle flip flop used only in U3844 and UC3845) May 1995 1/11 UC2842/3/4/5- UC3842


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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 flyback uc3842 power supply with uc2842 off-line flyback regulator uc3844 uc3842 circuit diagram off-line flyback regulator uc3842
2002 - uc3845 application smps

Abstract:
Text: www.fairchildsemi.com UC3842 /UC3843/UC3844/UC3845 SMPS Controller Features · · · · Low Start , The UC3842 /UC3843/UC3844/UC3845 are fixed frequencycurrent-mode PWM controller. They are specially , driving a Power MOSFET. The UC3842 and UC3844 have UVLO thresholds of 16V (on) and 10V (off). The UC3843 and UC3845 are 8.5V(on) and 7.9V (off). The UC3842 and UC3843 can operate within 100% duty cycle. The , UC3844, UC3845 Rev. 1.0.1 ©2002 Fairchild Semiconductor Corporation UC3842 /UC3843/UC3844/UC3845


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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
1999 - flyback uc3842

Abstract:
Text: DN-89 Design Note Comparing the UC3842 , UCC3802, and UCC3809 Primary Side PWM Controllers by Lisa Dinwoodie Introduction Despite the fact that the UC3842 and the UCC3802 are pin for pin , user transition from either the UC3842 or the UCC3802 to the UCC3809 in an existing design. Figures , . Soft-Start and Shutdown The UC3842 requires an external PNP, resistor, and capacitor in order to have full , pin low as in the UC3842 and the UCC3802. Bias The BiCMOS design of the UCC3802 and the UCC3809


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PDF DN-89 UC3842, UCC3802, UCC3809 UC3842 UCC3802 flyback uc3842 of ic uc3842 Datasheet of ic uc3842 UC3842 ON Semiconductor uc3842 application circuit IC UC3842 uc3842 equivalent uc3842 application note UC3842 flyback
1994 - UFN432

Abstract:
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 , Semiconductors Linear Products Product specification Current-mode PWM controller UC3842 ORDERING , Current-mode PWM controller UC3842 DC AND AC ELECTRICAL CHARACTERISTICS 0TJ70°C for UC3842 ; VCC=15V; RT=10kW; CT=3.3nF, unless otherwise specified. SYMBOL PARAMETER TEST CONDITIONS UC3842 UNIT


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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 E-4140-B mosfet UFN432 off-line flyback regulator uc3842
1994 - flyback uc3843

Abstract:
Text: UC2842/3/4/5 UC3842 /3/4/5 CURRENT MODE PWM CONTROLLER . . . . . . . . . . . , 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 applications The corresponding thresholds for the UC3843 and UC3845 are 8.5 V and 7.9 V. The UC3842 and , UC2842/3/4/5- UC3842 /3/4/5 ABSOLUTE MAXIMUM RATINGS Symbol Parameter Vi Supply Voltage (Ii


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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 UC3845 dc dc applications uc3843 flyback supply uc3842 circuit diagram UC3843 flyback converter
1996 - EC35-3c8

Abstract:
Text: INTEGRATED CIRCUITS AN1272 UC3842 application note Author: Lester J. Hadley, Jr. 1991 Dec Rev 1: 1996 Apr Philips Semiconductors Philips Semiconductors Application note UC3842 , reference for the current loop comparator. INTRODUCTION The UC3842 provides all the essential features , and 0.7V negative on the feedback line. Open loop testing of the UC3842 in a current mode supply may , ) is the primary converter operating condition addressed in this application note for the UC3842


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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
1994 - flyback uc3842

Abstract:
Text: UC2842/3/4/5 UC3842 /3/4/5 CURRENT MODE PWM CONTROLLER . . . . . . . . . . . , REFERENCE 500 KHz OPERATION LOW RO ERROR AMP DESCRIPTION The UC3842 /3/4/5family of control ICs , family are the under-voltage lockout thresholds and maximum duty cycle ranges. The UC3842 and UC3844 , corresponding thresholds for the UC3843 and UC3845 are 8.5 V and 7.9 V. The UC3842 and UC3843 can operate to , . BLOCK DIAGRAM (toggle flip flop used only in U3844 and UC3845) May 1995 1/11 UC2842/3/4/5- UC3842


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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
uc3642

Abstract:
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 , specification Current-mode PWM controller UC3842 ORDERING INFORMATION DESCRIPTION TEMPERATURE RANGE ORDER , Products Product specification Current-mode PWM controller UC3842 DC AND AC ELECTRICAL CHARACTERISTICS


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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 - Not Available

Abstract:
Text: Features Description • • • • The UC3842 /UC3843/UC3844/UC3845 are fixed , comparator and a high current totempole output for driving a Power MOSFET. The UC3842 and UC3844 have UVLO thresholds of 16V (on) and 10V (off). The UC3843 and UC3845 are 8.5V(on) and 7.9V (off). The UC3842 and , Semiconductor Corporation UC3842 /UC3843/UC3844/UC3845 Absolute Maximum Ratings Parameter Symbol , SENSE 10 OUTPUT N/C 6 9 GND RT/C T 7 2 5 8 PWR GND UC3842 /UC3843/UC3844


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PDF UC3842/UC3843/UC3844/UC3845 UC3842 UC3844 UC3843 UC3845
power supply with uc2842

Abstract:
Text: UC1842 UC2842 UC3842 Current-Mode PWM Controller DESCRIPTION The UC1842 family of control ICs , 853-0614 93932 Rev. 1 Product Specification Current-Mode PWM Controller UCÍ842, UC2842, UC3842 ORDERING , UC1842, UC2842, UC3842 DC AND AC ELECTRICAL CHARACTERISTICS (Unless otherwise stated, these specifications apply for -55 «S Tj < 125°C for UC1 842/43; -25 UC3842 /43; Vcc=154; RT=10kn; CT - 3.3nF.) SYMBOL PARAMETER TEST CONDITIONS UC1842 UC2842 UC3842 UNIT


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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
unitrode Applications Note U-96

Abstract:
Text: APPLICATION NOTE U-100A THE UC3842 /3/4/5 SERIES OF CURRENT-MODE PWM IC'S DESCRIPTION The , L E <60% UC3845 UC3844 < 100% UC3843 UC3842 A P P L IC A T IO N (C IR C U IT ) FLYBACK FORWARD BUCK/BOOST P O W E R S U P P L Y IN P U T (V) H IG H (O F F L IN E ) UC3844 U C3844/2 UC3842 /4 , UNDER-VOLTAGE LOCKOUT The UVLO circuit insures that Vcc is adequate to make the UC3842 /3/4/5 fully operational , current. OSCILLATOR The UC3842 oscillator is programmed as shown in Figure 8. Timing capacitor CT is


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PDF U-100A UC3842/3/4/5 UC1842/3/4/5 UC3642, UC3706, UC3901 U-101 unitrode Applications Note U-96 UC3642 UNITRODE applications handbook uc3842 -96 U-101 unitrode unitrode Application Note U-96 500W boost converter uc3843 forward converter uc3844 500w UC3843 application note buck UC3843 in isolated flyback converter UC3843 application note soft start
1995 - UC3842 buck

Abstract:
Text: APPLICATION NOTE UC3842 PROVIDES LOW-COST CURRENT-MODE CONTROL The fundamental challenge of , performance and low cost. The UC3842 is an integrated pulse width modulator (PWM) designedwith both these , 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 , pitfalls discussed. The final section presents designs of two power supplies utilizing UC3842 control


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PDF UC3842 UC3842 buck uc3842 flyback constant current boost uc3842 application note UC3842 note buck converter non isolated uc3842 constant current buck uc3842 application note flyback uc3842 uc3842 equivalent flyback transformer design uc3842
2001 - UC3842 smps design

Abstract:
Text: www.fairchildsemi.com UC3842 /UC3843/UC3844/UC3845 SMPS Controller Features Description · · · · The UC3842 /UC3843/UC3844/UC3845 are fixed frequency current-mode PWM controller. They , ) The UC3843 and UC3845 are 8.5V (on) and 7.9V (off) The UC3842 and UC3843 can operate within 100% duty , Block Diagram Rev. 1.0.0 ©2001 Fairchild Semiconductor Corporation UC3842 /UC3843/UC3844/UC3845 , UC3842 /UC3843/UC3844/UC3845 Electrical Characteristics (VCC=15V, RT=10K, CT=3.3nF, TA= 0°C to +70°C


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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
UC3843 application note buck

Abstract:
Text: U-100A _ U N ITR O D E APPLICATION NOTE UC3842 /3/4/5 PROVIDES LOW-COST CURRENT-MODE CONTROL , objectives; good electrical performance and low cost. The UC3842 /3/4/5 is an integrated pulse width modulator , , the UC3842 series is optimized for ef ficient power sequencing of off-line converters, DC to DC , description of the UC3842 family and highlights the features of each in dividual member, the UC3842 , UC3843, UC3844 and UC3845 Throughout the text, the UC3842 part number will be referenced, however the generalized


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PDF U-100A UC3842/3/4/5 UC3842 UC3843 application note buck uc3842 application circuit UC3843 buck converter application note UC3845 application note buck uc3842 equivalent buck uc3842 application note buck uc3843 UC3845 buck power supply with uc3842
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