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PN8570 Datasheet Internal BJT Low Standby-Power Quasi-Resonant Primary-side Converter

Manufacturer: Chipown

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Datasheet Details

Part number PN8570
Manufacturer Chipown
File Size 448.41 KB
Description Internal BJT Low Standby-Power Quasi-Resonant Primary-side Converter
Datasheet download datasheet PN8570 Datasheet

General Description

The PN8570 consists of a Low Standby-Power QuasiResonant (QR) Primary-Side controller and BJT, specifically designed for a high performance AC/DC charger or adapter with minimal external components.

PN8570 operates in primary-side sensing and regulation, so opto-coupler and TL431 could be eliminated.

In CV mode, multi-mode and quasi resonant technique is utilized to achieve high efficiency, avoid audible noise and make the system meeting Energy star level VI.

Overview

PN8570 Chipown Internal BJT Low Standby-Power Quasi-Resonant Primary-side Converter.

Key Features

  • Vo 100% ±5% 60% ±5% Features.
  • Internal BJT switch.
  • Multi-mode and Quasi-Resonant control technique.
  • ±5% CC Regulation at Universal AC input.
  • Primary-side Sensing and Regulation without TL431 and Opto-coupler.
  • Programmable Cable Drop Compensation.
  • No-need Control Loop Compensation Capacitor.
  • Excellent Protection include:.
  • Over Temperature Protection (OTP).
  • VDD Under/Over Voltage Protection(UVLO&OVP).
  • Cycle-by-Cycle Current Limiting (OCP).

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