1

2

3

4

8

7

6

5

REF

VDD

GD

GND

CS

SS

RTC

RTD

TPS92001/2

Linear

Regulator

UDG-10003

TRIAC

Dimming

Control

EMI

Filter

TPS92001, TPS92002

www.ti.com

SLUSA24 – FEBRUARY 2010

GENERAL PURPOSE LED LIGHTING PWM CONTROLLER

Check for Samples: TPS92001, TPS92002

1

FEATURES

DESCRIPTION

•

Ideal for Single Stage Designs

The TPS92001/2 family of general LED lighting PWM

controllers

contains

control

and

drive

circuitry

•

Supports Isolated and Non-Isolated

required for off-line isolated or non-isolated LED

Topologies

lighting applications.

•

Phase-Cut TRIAC Dimmable

The controllers can support Phase Cut TRIAC

•

Few External Components Mode Operation

dimming with minimal external components. The

•

Wide Duty Cycle Range for Wide-Input Voltage

controllers can also be implemented for stage

or Dimming Range

conversion where the power factor (PF) exceeds

•

Convenient 5-V Reference Output

regulatory requirements for lighting. These controllers

also have an accessible 5-V reference that could be

•

Undervoltage Lockout for Safe Operation

used to power a microcontroller or other low power

•

Operation to 1-MHz

peripheral components. The controllers operate in

•

0.4-A Source/0.8-A Sink FET Driver

fixed frequency current mode switching with minimal

external parts count. Internally implemented circuits

•

Low 100-µA Startup Current

include undervoltage lockout featuring startup current

less than 100 µA, logic to ensure latched operation, a

APPLICATIONS

PWM comparator, and a totem pole output stage to

•

Residential LED Lighting Drivers for A19

sink or source peak current. The output stage,

E12/E26/27, GU10, MR16, PAR30/38 Integral

suitable for driving N-Channel MOSFETs, is low in

Lamps

the off state. Oscillator frequency and maximum duty

•

Drivers for Wall Sconces, Pathway Lighting

cycle are programmed with two resistors and a

and Overhead Lighting

capacitor.

•

Drivers for Wall Washing, Architectural and

The TPS92001/2 family also features full cycle soft

Display Lighting

start.

The

family

offers

UVLO

thresholds

and

hysteresis levels for off-line and DC-to-DC systems.

DEVICE

TURN-ON

TURN-OFF

The TPS92001/2 is offered in the 8-pin MSOP (DGK)

NUMBER

THRESHOLD (V)

THRESHOLD (V)

and 8-pin SOIC (D) packages. The small MSOP

TPS92001

10

package

makes

the

device

ideally

suited

for

8

TPS92002

15

applications where board space and height are at a

premium

1

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 © 2010, 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.