* This specifications are subject to be changed without notice

ADT6051

Dimmable Constant Current / Constant Voltage IC

http://www.ad-tech.co.kr

DEC. 15. 2014

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Figure 1. Typical Application Circuit

The ADT6051 is a constant current and constant voltage IC for stable LED driving in a

secondary side. This IC is suitable for applications that require power line isolation for safety

and reliability, high conversion efficiency, as well as high LED current accuracy.

The ADT6051 contains 1) a constant current regulating amplifier with 300mV threshold and

within 1% current accuracy; 2) an VCC over voltage comparator to protect the IC when LED

string is open or broken; 3) a PWM and analog dimming control for LED lighting system;

4) and a DC output pin for driving an opto-coupler or sourcing power for the other devices.

The ADT6051 is offered in SOP8 package.

Dimmable CC / CV IC for LED Lighting

ADT6051

GENERAL DESCRIPTION

FEATURES

TYPICAL APPLICATION CIRCUIT

APPLICATIONS

• Isolated LED lighting

• Dimmable LED lighting

• Secondary side LED current regulation

• Operating range up to 60V

• LED Current accuracy ≤ ±1%

• Analog dimming control

• PWM dimming control

• DC 5V output

• DC 5V output short protection

• VCC over voltage protection

• Over temperature protection

• SOP8 package

ADT6051

ADT6011

GD

Q1

COMP

INV

AC

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LED

VCC

PWM

ADIM

VSEN

ISEN

GND

DC5V

OUT

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