ZS3019SL芯片**供应

Features

▲Low Cost Solution Built-in 800V power BJT

▲Quasi-Resonant Primary Side Regulation (QR

PSR) Control with High Efficiency

▲Multi-Mode PSR Control

▲Fast Dynamic Response

▲Built-in Dynamic base Drive

▲Audio Noise Free Operation

▲±5% CC and CV Regu lation

▲Low S tandby P ower <70mW

▲Programmable Cable Drop Compensation (CDC)

in CV Mode

▲Built-in AC L ine & L oad CC Compensation

▲Build in Protections:

■ Short Load Protection (SLP)

■ Cycle-by-Cycle Current Limiting

■ Leading Edge Blanking (LEB)

■ Pin Floating Protection

■ VDD OVP & U VP & C lamp

▲Available with ZS301X Versions in SOP-7 PLUS

Package

Applications

■Battery Chargers for cellular phones, cordless

phone, PDA, digital cameras, etc.

■Replaces linear transformer and RCC SMPS

■Small power adapter

■AC/DC LED lighting

Typical Application Information

General Description

ZS301X is a high performance Quasi Resonant (QR)

Primary Side Regulation (PSR) PWM power switch

with high precision CV/CC control ideal for charger

applications.

In CV mode, ZS301X adopts Multi Mode QR Control

which uses the hybrid of AM (Amplitude Modulation)

mode and (Frequency Modulation) FM mode to

improve system efficiency and reliability. In CC mode,

the IC uses PFM control with line and load CC

compensation. The IC can achieve fast dynamic

response. The built-in Cable Drop Compensation

(CDC)

function

can

provide

excellent

CV

performance.

ZS301X integrates functions and protections of

Under Voltage Lockout (UVLO), VDD over Voltage

Protection (VDD OVP), Cycle-by-cycle Current

Limiting (OCP), Short Load Protection (SLP), VDD

Clamping, etc