TS19372_10 Datasheet, PDF (1/9 Pages) Taiwan Semiconductor Company, Ltd – Buck (Step-down) WLED Driver with External Switch

TS19372
Buck (Step-down) WLED Driver with External Switch
SOT-25
Pin Definition:
1. SW
2. Ground
3. CT
4. ISENSE
5. VIN
General Description
The TS19372 is a continuous mode inductive step-down converter, designed for driving single or multiple series
connected LEDs efficiently from a voltage source higher than the LED voltage. The device operates from an input
supply between 6V and 40V and provides 300mA output current to drive external N-channel MOSFET.
TS19372 includes the output switch and a high-side output current sensing circuit, which uses an external resistor
to set the nominal average output current.
Features
● Wide Input Voltage Range 6V~40V
● Output Current Optional by MOSFET
● High Efficiency up to 92%
● Drives up to 3 (1~3W) LEDs @ V_IN 12V
● Drives up to 7 (1~3W) LEDs @ V_IN 24V
● 180kHz Switching Frequency
● Internal PWM Filter
Application
● LED Flashlights
● White LED Backlighting
● White LED Driving
● Multiple LED Driving
● LED Lighting Equipment
Ordering Information
Part No.
TS19372CX5 RF
Package
SOT-25
Packing
3Kpcs / 7” Reel
Block Diagram
1/9
Version: D09