ADT6051 Datasheet, PDF (1/4 Pages) ADTech – Dimmable CC / CV IC for LED Lighting

Dimmable Constant Current / Constant Voltage IC
ADT6051
Dimmable CC / CV IC for LED Lighting ADT6051
GENERAL DESCRIPTION
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.
FEATURES
• 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
APPLICATIONS
• Isolated LED lighting
• Dimmable LED lighting
TYPICAL APPLICATION CIRCUIT
AC
••
•
•
•
•
•
VCC
INV
••
GD
Q1
ADT6011
ADIM
•^DC5V
ADT6051
PWM
• ^VSEN •
•^ISEN
COMP
•
OUT
GND
•
Figure 1. Typical Application Circuit
* This specifications are subject to be changed without notice
LED
•
DEC. 15. 2014
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