Datasheet > GR8937L

GR8937L

更新时间： 2024-10-31 01:13:07

品牌	Logo	应用领域
绿芯 - GRENERGY		/
页数	文件大小	规格书
9页	321K
描述
Current Mode PWM Power Switch

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数据手册

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GR8937L 数据手册

Preliminary GR8937L

Current Mode PWM Power Switch

Features

Description

ꢀ

Current mode PWM

GR8937L integrates a PWM controller and high

voltage power MOSFET of 650V. GR8937L has

the features of very low startup current and current

mode PWM control with green-mode function at

light load. These features enable the power supply

to easily meet even the strictest power conservation

requirements. The integrated functions of GR8937L

also include the leading-edge blanking of the current

sensing, internal slope compensation, cycle-by-

-cycle peak current limiting and soft start. OCP,

OVP and OLP provide protection performance for

fault conditions. To protect the power MOSFET from

being damaged by supply over voltage, the internal

gate voltage of GR8937L is clamped at 15V

GR8937L improves the performance and reduces

the cost of power supplies.

Very low startup current

Under-voltage lockout (UVLO)

Non-audible-noise green-mode control

Fixed switching frequency of 65KHz

Cycle-by-cycle peak current limiting

Internal leading-edge blanking

Internal slope compensation

Less than 0.1w of power saving

Over-voltage protection (OVP) on VCC Pin

Over-load protection (OLP)

Applications

ꢀ

Switching AC/DC power battery charger

Digital camera

Open-frame SMPS

PDA power supply

Ordering and Marking Information

DIP-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.

2010.11 Ver. A Copyright Grenergy OPTO, Inc. www.grenergy-ic.com

12 3 4 5 6 7...9

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