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FEATURES

APPLICATIONS

DESCRIPTION

SIMPLIFIED APPLICATION DIAGRAM

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2

3

4

8

7

6

5

VDD

GDRV

GND

TZE

VSENSE

EAOUT

VINS

ISENSE

UCC28810

+

TriacDimming

Detect

LowPass

Filter

+

Bias

LED

Current

Sense

UDG-08120

Bias

UCC28810

UCC28811

LED LIGHTING POWER CONTROLLER

• AC Input General Lighting Applications Using

• Transition Mode Controller for Low

HB LEDs

Implementation Cost of AC Input LED Lighting

• Industrial, Commercial and Residential

Applications

Lighting Fixtures

• Implements Single Stage Power Factor

• Outdoor Lighting: Street, Roadway, Parking,

Corrected LED Driver

Construction and Ornamental LED Lighting

• Enhanced Transient Response With Slew-Rate

Fixtures

Comparator

• Interfaces with Traditional Wall Dimmers

• Accurate Internal V

The UCC28810 and UCC28811 are general lighting

Regulation

power controllers for low to medium power lumens

• Two UVLO Options

applications requiring power factor correction and

EMC compliance. It is designed for controlling a

• Overvoltage Protection (OVP), Open-Feedback

flyback, buck or boost converter operating in critical

Protection and Enable Circuits

conduction mode. It features a transconductance

• ±750-mA Peak Gate Drive Current

voltage amplifier for feedback error processing, a

• Low Start-Up and Operating Currents

simple current reference generator for generating a

current command proportional to the input voltage, a

• Lead (Pb)-Free Packages

current-sense (PWM) comparator, PWM logic and a

totem-pole driver for driving an external FET.

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Please be aware that an important notice concerning availability, standard warranty, and use in critical applications of Texas

Instruments semiconductor products and disclaimers thereto appears at the end of this data sheet.

PRODUCTION DATA information is current as of publication date.

Copyright © 2008, Texas Instruments Incorporated

Products conform to specifications per the terms of the Texas

Instruments standard warranty. Production processing does not

necessarily include testing of all parameters.