ZHCSBB4B July 2013 – June 2017 TPS61197
PRODUCTION DATA.
The TPS61197 is designed for LCD TV backlighting. It is a current-mode boost controller driving one white-LED string with multiple LEDs in series. The input voltage range for the device is from 8 V to 30 V. Its switching frequency is programmed by an external resistor from 50 kHz to 800 kHz.
The TPS61197 has a built-in linear regulator, which steps down the input voltage to the VDD voltage for powering the internal circuitry. An internal soft start circuit is implemented to work with an external capacitor to adjust the soft start-up time to minimize the in-rush current during boost converter start-up.