TS19370 Datasheet - Taiwan Semiconductor

TS19370 Boost (Step-up) WLED Driver

The TS19370 is a step-up DC/DC converter specifically designed to drive white LEDs with a constant current. The device can drive 2 ~ 9 LEDs in series from a Li-Ion cell. Series connection of the LEDs provides identical LED currents resulting in uniform brightness and eliminating the need for ballast.

TS19370 Features

* Inherently Matched LED Current High Efficiency: 88% Typical Drives Up to 6 LEDs @ Vin 5V Drives Up to 9 LEDs @ Vin 9~15V Over Output Voltage Protection 30V Fast 1.2MHz Switching Frequency Requires Only 0.22µF Output Capacitor PWM dimming control

TS19370_TaiwanSemiconductor.pdf