TPS65176RHDR

The TPS65176RHDR from Texas Instruments is an active LCD Bias IC specifically designed for TV applications. This integrated circuit provides a power supply solution for a variety of LCD bias needs.

A buck converter within the TPS65176RHDR generates a logic supply for the timing controller (T-CON). Simultaneously, a boost converter generates the AV DD voltage required to power the Source Driver ICs. The device also includes two regulated charge pump controllers for V GON and V GOFF, enabling the display transistors to turn on and off with minimal external components.

Key electrical specifications include an input voltage range of 9.5V to 14V and source driver voltages up to 18.5V. The boost converter features a 3.5-A switch current and an adjustable switching frequency from 500kHz to 2 MHz. The buck converter has a 2.5-A switch current limit and a fixed 750kHz switching frequency. The operating temperature range is -40°C to 85°C.

Packaged in a 28-VQFN (5x5 mm) with exposed pad, the TPS65176RHDR is suitable for surface mount applications. It offers features such as adjustable power-on sequencing, internal soft-start, undervoltage lockout, overvoltage protection, short circuit protection, and thermal shutdown.