TPS61196PWPT Datasheet PDF - TI

●DESCRIPTION

●The TPS61196 provides a highly integrated solution for LCD TV backlight with an independent PWM

●dimming function for each string. This device is a current mode boost controller driving up to six WLED

●strings with multiple LEDs in series. Each string has an independent current regulator providing a LED

●current adjustable from 50mA to 400mA within ±1.5% matching accuracy.

●FEATURES

●• 8V to 30V Input Voltage

●• Up to 120V Output Voltage

●• 100KHz to 800kHz Programmable Switching Frequency

●• Adaptive Boost Output for LED Voltages

●• Six Current Sinks, 200mA Continuous Output / 400mA Pulse Output for Each String

●• ±1.5% Current Matching Between Strings

●• High Precision PWM Dimming Resolution up to 5000:1

●• Programmable Over-voltage Threshold at Output and Each Current Sink

●• Programmable Under-voltage Threshold at Input with Adjustable Hysteresis

●• Adjustable Soft Start Time Independent of Dimming Duty Cycle

●• Built-in LED Open/Short Protection

●• Built-in Schottky Diode Open/Short Protection

●• Built-in ISET Short Protection

●• Built-in IFB Short Protection

●• Thermal Shutdown

●• 28L HTSSOP Package with PowerPAD

●APPLICATIONS

●• LCD TV Backlight

●• Scan Mode LCD TV Backlight