TPS61197 Overview
The TPS61197 provides highly integrated solutions for LCD TV backlighting. This device is a currentmode boost controller driving one WLED string with multiple LEDs in series. The TPS61197 adjusts the output voltage of the boost controller automatically to provide only the minimum voltage required by the LED string to generate the setting LED current, thereby optimizing the efficiency of the driver.
TPS61197 Key Features
- 1 8-V to 30-V Input Voltage
- 50-kHz to 800-kHz Programmable Switching
- Adaptive Boost Output to White-LED Voltage
- Programmable Overvoltage Protection Threshold
- Programmable Undervoltage Threshold at Input
- Built-in LED Open and IFB Short Protections
- Built-in Schottky Diode Open/Short Protection
- Thermal Shutdown