2010.04 Ver. 1.21 Copyright Grenergy OPTO, Inc. www.grenergy-ic.com

1

GR8836

Features

Current mode control

Very low startup current

Under-voltage lockout (UVLO)

Non-audible-noise green-mode control

Programmable switching frequency

Cycle-by-cycle peak current limiting

Internal leading-edge blanking

Internal slope compensation

Internal soft start

Gate output voltage clamp

Over-voltage protection (OVP) on VCC pin

Over-load protection (OLP)

Over-current protection (OCP) on CS pin

Over-temperature protection (OTP) on chip

300mA driving capability

Applications

Switching AC/DC power adapter

Battery charger

Open-frame SMPS

Description

The GR8836 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, cycle-by-cycle peak current limiting,

and soft start. OLP, OCP and OVP provide

protection performance for fault conditions. To

protect the external power MOSFET from being

damaged by supply over voltage, the GR8836

OUT pin voltage is clamped to about 18V. The

GR8836 improves the performance and reduces

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

6-pin SOT-26 package.

Ordering and Marking Information

DIP-8

SOT-26

Code 1

8

9

A

B

G

H

I

J

Year

2008 2009 2010 2011

2016

2017

2018

2019

Code 2

1

2

3

4

9

A

B

C

Month

Jan.

Feb. Mar.

Apr.

●

●

●

Sep.

Oct.

Nov.

Dec.

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.

Green-Mode PWM Controller with Integrated Protections