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UC1843AJTIN/a382avaiCurrent Mode PWM Controller


UC1843AJ ,Current Mode PWM Controllerfeatures: startup current• Automatic Feedforward Compensationis less than 0.5 mA, oscillator discha ..
UC1843AMDREP ,Current Mode PWM Controllermaximum ratings over operating free-air temperature range (unless otherwise noted)V voltage (low im ..
UC1843AMDREPG4 ,Enhanced Product Current-Mode Pwm Controller 8-SOIC -55 to 125electrical characteristics, T = −55C to 125C for the UC184xAM-EP, V = 15 V (see Note 1), A CCR = ..
UC1843J ,Current Mode PWM ControllerFeaturesThe UCx84x family offers a variety of package• Optimized for Off-Line and DC-to-DC Converte ..
UC1843J/883B ,Current Mode PWM ControllerFeatures... 19 Application and Implementation...... 212 Applications..... 19.1 Application Informat ..
UC1843J/883B ,Current Mode PWM ControllerMaximum Ratings.. 612 Device and Documentation Support........ 357.2 ESD Ratings........ 612.1 Rela ..
ULN2001 ,HIGH-VOLTAGE/ HIGH-CURRENT DARLINGTON ARRAYSULN2001A-ULN2002A® ULN2003A-ULN2004ASEVEN DARLINGTON ARRAYS. SEVEN DARLINGTONS PER PACKAGE.OUTPUT C ..
ULN2001A ,SEVEN DARLINGTON ARRAYSULN2001A-ULN2002A® ULN2003A-ULN2004ASEVEN DARLINGTON ARRAYS. SEVEN DARLINGTONS PER PACKAGE.OUTPUT C ..
ULN2001D ,Seven darlington arraysABSOLUTE MAXIMUM RATINGSSymbol Parameter Value UnitV Output Voltage 50 VoV Input Voltage (for ULN20 ..
ULN2001D1013TR ,SEVEN DARLINGTON ARRAYSULN2001A-ULN2002A® ULN2003A-ULN2004ASEVEN DARLINGTON ARRAYS. SEVEN DARLINGTONS PER PACKAGE.OUTPUT C ..
ULN2002 ,SEVEN DARLINGTON ARRAYSULN2001A-ULN2002A® ULN2003A-ULN2004ASEVEN DARLINGTON ARRAYS. SEVEN DARLINGTONS PER PACKAGE.OUTPUT C ..
ULN2002A ,HIGH VOLTAGE, HIGH CURRENT DARLINGTON TRANSISTOR ARRAYSULN2001A-ULN2002A® ULN2003A-ULN2004ASEVEN DARLINGTON ARRAYS. SEVEN DARLINGTONS PER PACKAGE.OUTPUT C ..


UC1843AJ
Current Mode PWM Controller
VIN
UC2843A
VCC
VREF
RT/CT
GND
ISENSE
OUTPUT
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UC1842A, UC1843A, UC1844A, UC1845A
UC2842A, UC2843A, UC2844A, UC2845A
UC3842A, UC3843A, UC3844A, UC3845A

SLUS224F –SEPTEMBER 1994–REVISED OCTOBER 2017
UCx84xA Current-Mode PWM Controller Features
Optimized for Off-Line and DC-DC Converters Low Start-Up Current(< 0.5 mA) Trimmed Oscillator Discharge Current Automatic Feedforward Compensation Pulse-by-Pulse Current Limiting Enhanced Load Response Characteristics Undervoltage Lockout With Hysteresis Double Pulse Suppression High-Current Totem Pole Output Internally-Trimmed Bandgap Reference Upto 500-kHz Operation Createa Custom Design Using the UCx84xA With
the WEBENCH® Power Designer Applications Switch Mode Power Supplies (SMPS) DC-DC Converters Power Modules Industrial PSU Battery Operated PSU Description
The UCx84xA familyof control devicesisa pin-for-pin
compatible improved versionof the UCx84x family.
Providing the necessary featuresto control current-
modeor switched-mode power supplies, this family
devices has many improved features: startup current less than 0.5 mA, oscillator dischargeis trimmed
8.3 mA, and during UVLO, the output stage can least10 mAat less than 1.2V for VCC over5
Device Information(1)

(1) Forall available packages, see the orderable addendum
the endofthe data sheet.
Device Comparison Table
Simplified Application Diagram
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