Datasheet > GR8837

GR8837

更新时间： 2024-10-31 01:06:23

品牌	Logo	应用领域
绿芯 - GRENERGY		/
页数	文件大小	规格书
14页	721K
描述
Green-Mode PWM Controller with Latch Protection

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GR8837 数据手册

Preliminary GR8837

Green-Mode PWM Controller with Latch Protection

Features

ꢀ

Current mode control

Description

Standby power below 100mW

Under-voltage lockout (UVLO)

Non-audible-noise green-mode control

65KHz switching frequency

Internal leading-edge blanking

Internal slope compensation

Internal soft start

The GR8837 is a highly-integrated, low startup

current, current mode PWM controller with

green-mode function. This function enables the

power supply to easily meet even the strictest

power conservation requirements. The integrated

functions also include the leading-edge blanking

of the current sensing, internal slope com-

pensation, and soft start. OLP, OCP. The RTL pin

latch function by injecting a high over3.5V to

provide OVP latch off and low below 1V to provide

OTP latch off protection. To protect the external

power MOSFET from being damaged by supply

over voltage, the GR8837 OUT pin voltage is

clamped to about 13V.

Gate output voltage clamp

Jitter and soft driving for reducing EMI

External OVP Latch off mode

External OTP Latch off mode

Over-load protection (OLP)

300mA driving capability

The GR8837 improves the performance and

reduces the cost of power supplies. It is with 8-pin

DIP and 6-pin SOT-26 package.

Application

ꢀ

Switching AC/DC Adapter

Battery Charger

Open frame SMPS

Ordering and Marking Information

SOT-26

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.

2011.01 Ver. C.Copyright Grenergy OPTO, Inc. www.grenergy-ic.com

12 3 4 5 6 7...14

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