UC3837 Datasheet Low Cost Power-saving Mode Pwm Controller

Manufacturer: Unisonic Technologies

Overview: UNISONIC TECHNOLOGIES CO., LTD UC3837 Preliminary LINEAR INTEGRATED CIRCUIT LOW COST POWER-SAVING MODE PWM CONTROLLER FOR FLYBACK CONVERTERS.

Datasheet Details

Part number	UC3837
Manufacturer	Unisonic Technologies
File Size	358.52 KB
Description	LOW COST POWER-SAVING MODE PWM CONTROLLER
Datasheet	UC3837-UTC.pdf

General Description

The UC3837 is a high performance current mode PWM controller ideally suited for low standby power.

Low VDD startup current make the power reliable on startup design and a large value resistor could be used in the startup circuit to minimize the standby power.

At no load condition, the IC operates in power-saving mode for lower standby power, decreasing frequency for Higher conversion efficiency at light load condition.

Key Features

S.
UTC proprietary frequency hopping technology for Improved EMI.
Programming BNO for higher security performance.
Fixed switch frequency 65kHz.
Power-saving mode for high light-load and standby efficiency.
Gate output voltage clamped at 15V.
Soft Start.
Low start-up current.
Dynamic peak current limiting for constant output power.
Cycle-by-cycle Current Limiting.
Built-in synchronized slope compensation.
Under voltage lockout (U.

UC3837 Distributor

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