Datasheet > GR8763

GR8763

更新时间： 2024-11-19 01:23:07

品牌	Logo	应用领域
绿芯 - GRENERGY		/
页数	文件大小	规格书
13页	600K
描述
Power Factor Controller IC for High Power Factor

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GR8763 数据手册

Preliminary GR8763

Power Factor Controller IC for High Power Factor

Features

Description

ꢀ

Critical conduction mode of PFC pre-regulators

The GR8763 is a current-mode PFC controller

operating in critical conduction mode. The

sinusoidal current is taken from the single phase line

supply and stabilized DC voltage is available at the

output. The IC includes a highly liner multiplier

which can reduce AC input current distortion, that

allows wide-range-mains operation with an

extremely low THD, even over a large load range.

The output voltage is controlled by an error amplifier

and an internal voltage reference. An effective

two-step (dynamic and static) OVP enables to safely

handle over voltages either occurring at start-up or

resulting from load disconnection. The totem-pole

output stage capable of 500mA driving capability is

Very low startup current (<50uA)

Under-voltage lockout with hysteresis

Zero current detector for critical conduction

mode

ꢀ

Dynamic and static output over-voltage

protection

ꢀ

Gate output maximum voltage clamped

Internal restart timer

Internal leading-edge blanking

500mA totem pole output with active shut

down

Applications

ꢀ

Open-frame power supply and power adapter

suitable for big MOSFET or IGBT. It is available in

8-pin SOP package.

Flat TV monitor

Desktop PC

Electronic lamp ballast

Ordering and Marking Information

SOP-8

Grenergy OPTO Inc. reserves the right to make changes to improve reliability or manufacture ability without notice, and

advise customers to obtain the latest version of relevant information to verify before placing orders.

2010.04 Ver. 1C Copyright Grenergy OPTO, Inc. www.grenergy-ic.com

12 3 4 5 6 7...13

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