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UC2842AUCN/a10avaiLinear High-Performance Current Mode Controller
UC2842ALINFINITYN/a20avaiLinear High-Performance Current Mode Controller
UC2842AD8TIN/a18311avaiCurrent Mode PWM Controller
UC2842AD8UNITRODEN/a119avaiCurrent Mode PWM Controller
UC2842AD8TI/UNITRODEN/a200avaiCurrent Mode PWM Controller
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UC2842AD8TRTIN/a2500avaiCurrent Mode PWM Controller
UC2842AD8TRG4TIN/a5000avaiCurrent Mode PWM Controller
UC2842ADTRTEXASN/a26avaiCurrent Mode PWM Controller
UC2842ADTRTIN/a1000avaiCurrent Mode PWM Controller
UC2842ADWUNIN/a3avaiCurrent Mode PWM Controller
UC2842ADWTRTI N/a4000avaiCurrent Mode PWM Controller
UC2842ADWTRG4TIN/a2530avaiCurrent Mode PWM Controller 16-SOIC -40 to 85
UC2842AJTIN/a5avaiCurrent Mode PWM Controller
UC2842ANG4TIN/a5avaiCurrent Mode PWM Controller 8-PDIP -40 to 85


UC2842AD8 ,Current Mode PWM ControllerBlock Diagram... 1011.8 Glossary. 257.3 Feature Description.... 1012 Mechanical, Packaging, and Ord ..
UC2842AD8 ,Current Mode PWM ControllerFeatures, Application and Implementation and Device and DocumentationSupport........ 1• Added copyr ..
UC2842AD8 ,Current Mode PWM ControllerMaximum Ratings.. 611 Device and Documentation Support........ 246.2 ESD Ratings........ 611.1 Devi ..
UC2842AD8 ,Current Mode PWM Controllerfeatures: startup current• Automatic Feedforward Compensationis less than 0.5 mA, oscillator discha ..
UC2842AD8TR ,Current Mode PWM ControllerFeatures... 1 8 Application and Implementation...... 148.1 Application Information........ 142 Appl ..
UC2842AD8TRG4 ,Current Mode PWM ControllerMaximum Ratings.. 611 Device and Documentation Support........ 246.2 ESD Ratings........ 611.1 Devi ..
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UC2842A-UC2842AD8-UC2842AD8TR-UC2842AD8TRG4-UC2842ADTR-UC2842ADW-UC2842ADWTR-UC2842ADWTRG4-UC2842AJ-UC2842ANG4
Current Mode PWM Controller
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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.
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Simplified Application Diagram
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