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UC3875 Datasheet LOW COST POWER-SAVING MODE PWM CONTROLLER

Manufacturer: Unisonic Technologies

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General Description

The UTC UC3875 is a high performance current mode PWM controller ideally suited for low standby power.

The PWM switching frequency is programmable externally at normal operation.

Low SOP-8 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.

Overview

UNISONIC TECHNOLOGIES CO., LTD UC3875 Preliminary LINEAR INTEGRATED CIRCUIT LOW COST POWER-SAVING MODE PWM CONTROLLER FOR FLYBACK CONVERTERS.

Key Features

  • S.
  • UTC proprietary frequency hopping technology for Improved EMI performance.
  • Power-saving mode for high light-load and standby efficiency.
  • Dynamic peak current limiting for constant output power.
  • Built-in synchronized slope compensation.
  • OTP,OLP,OVP and VDD clamp for higher security.

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