TS19452 Datasheet, PDF(1/7 Page) Taiwan Semiconductor Company, Ltd

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TS19452 Datasheet, PDF (1/7 Pages) Taiwan Semiconductor Company, Ltd – AC/DC WLED Driver with Internal MOSFET

TS19452

AC/DC WLED Driver with Internal MOSFET

Universal Switch Mode

SOP-8

Pin assignment:

1. Drain

8. Ground

2. Drain

7. Ground

3. Drain

6. Ground

4. Vdd

5. Ground

General Description

The TS19452 is a PWM high efficiency LED driver control IC. It allows efficient operation of LED strings from

voltage source ranging up to 450VDC. It includes an internal high voltage switching MOSFET controlled with

fixed off-time of approximately 12ÂµS.

The LED string is driven at constant current, thus providing constant light output and enhanced reliability. The

output current is internally fixed at 100mA. The peak current control scheme provides good regulation of the

output current throughout the universal AC line voltage range of 85~264VAC or DC input voltage of 20~400V

Features

â Constant output current at 100mA(typ)

â Universal 85~264VAC operation

â Fixed off-time buck converter

â Internal 475V power MOSFET

â Low inductance value at 4.7mH (typ)

Typical Application Circuit

Application

â Decorating LED lighting

â LED lamps with AC or DC operation.

Ordering Information

Part No.

Package

Packing

TS19452CS RLG SOP-8 2.5Kpcs / 13â Reel

Note: âGâ denote for Halogen Free Product

Absolute Maximum Rating

Parameter

Symbol

Limit

Unit

Input Voltage Range

VIN to GND

~ +475

Supply Current

IDD

400

Power Dissipation @ TA=25ÂºC

2500

Operating Ambient Temperature

TOPR

-40 to +85

ÂºC

Storage Temperature Range

TSTG

-65 to +150

Junction Temperature Range

-40 to +150

Thermal Resistance â Junction to Ambient

RÎ¸JA

oC/W

Note: Stresses beyond those listed under âAbsolute Maximum Ratingsâ may cause permanent damage to the

device. These are stress rating only, and functional operation of the device at these or any other conditions beyond

those indicated in the operational sections of the specifications is not implied. Exposure to absolute maximum

rating conditions for extended periods may affect device reliability.

1/7

Version: A12

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