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 ..
UM23C2001 , 131,072 X 8 BIT CMOS MASK - PROGRAMMABLE ROM
UM3481A , Multi-Melody Generator with Sleep Function
UM3561 , UM3561A Three Siren Sound Generator
UM3561A , CARACTERISTICAS
UM3750 , Programmable Encoder/Decoder
UM3750A , Programmable Encoder/Decoder
UC2842A-UC2842AD8-UC2842AD8TR-UC2842AD8TRG4-UC2842ADTR-UC2842ADW-UC2842ADWTR-UC2842ADWTRG4-UC2842AJ-UC2842ANG4
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, UC3845ASLUS224F –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
DescriptionThe 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
