TS19460CSRLG datasheet(1/9 Pages) TSC

Part #	TS19460CSRLG

Description	AC/DC WLED Driver with Average-Mode Constant Current Control

PDF	9 Pages

Scroll/Zoom	100%

Manufacturer	TSC [Taiwan Semiconductor Company, Ltd]

Direct Link	http://www.taiwansemi.com

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TS19460

Taiwan Semiconductor

Document Number: DS_P0000188

1

Version: D15

AC/DC WLED Driver with Average-Mode

Constant Current Control

DESCRIPTION

The TS19460 is an average current mode control LED

driver IC operating in a constant off-time mode. It

greatly improves accuracy, line and load regulation of

the

LED

current

without

any

need

for

loop

compensation or high-side current sensing. The output

LED current accuracy is at ±5%, and it is equipped

with current limit comparator for hiccup mode output

short circuit protection.

The TS19460 can be powered from an 8V~450V

supply. A PWM dimming input is provided that

accepts an external control TTL compatible signal.

The output current can be programmed by an

internal 250mV reference, or controlled externally

through a 0~1.5V dimming input. The TS19460 is

ideally suited for buck LED drivers and is requires

only free external components (apart from the power

stage) to produce a controlled LED current making it

an ideal solution for low cost LED drivers.

FEATURES

●

Fast average current controller

●

Programmable constant off-time switching

●

Linear and PWM dimming capability

●

Requires few external components for operation

●

Output short circuit protection with skip mode

●

–compatible with TS19450CS

APPLICATION

●

DC/DC or AC/DC LED driver applications

●

RGB backlighting LED driver

●

Back lighting of flat panel displays

●

General purpose constant current source

●

Signage and decorative LED lighting

●

LED street lighting

SOP-8

Pin Definition:

1. VIN

8. RT

2. CS

7. LD

3. GND

6. VDD

4. Gate

5. PWMD

Notes: Moisture sensitivity level: level 3. Per J-STD-020

TYPICAL APPLICATION CIRCUIT

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TS19460CSRLG Datasheet(PDF) 1 Page - Taiwan Semiconductor Company, Ltd

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