TS19372

Buck (Step-down) WLED Driver with External Switch SOT-25 Pin Definition: 1. SW 2. Ground 3. CT 4. ISENSE 5. VIN www.DataSheet4U.com TS19372 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 300mA Output Current High Efficiency up to 92% Drives up to 3 (1~3W) LEDs @ VIN 12V Drives up to 7 (1~3W) LEDs @ VIN 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 1/6 Version: A09 Buck (Step-down) WLED Driver with External Switch Absolute Maximum Rating Parameter Input Voltage Supply Voltage (Recommended) FB Voltage SW Voltage Output SW Current Power Dissipation Ambient Temperature Range Junction Temperature Range www.DataSheet4U.com TS19372 Symbol VIN VIN VFB VSW ISW PD TA TJ Limit 40 6 ~ 40 -0.3 ~ 40 36 300 450 -40 to +85 +150 Unit V V V V mA mW o o C C ...