LCD DRVR 3.3V/5V/9V/12V/15V/18V/24V 24-Pin VQFN EP T/R

The TPS65193 is dual high-voltage scan driver to drive an amorphous-silicon-gate (ASG) circuit on TFT glass. Each single high-voltage scan driver receives logic-level inputs of CPVx and generates two high-voltage outputs of CKVx and CKVBx. The device receives a logic-level input of STV and generates a high-voltage outputof STVP. These outputs are swings from Voff (–28 V) to Von (35 V) and are used to drive the ASG circuit and charge/discharge the capacitive loads of the TFT LCD. In order to reduce the power dissipation of the device, a charge-share function is implemented. The device features a discharge function, which shorts Voff to GND in order to shut down the panel faster when the LCD is turned off.

Dual High-Voltage Scan Driver

Scan Driver Output Charge Share

High Output-Voltage Level: Up to 35 V

Low Output-Voltage Level: Down to –28 V

Logic-Level Inputs

24-Pin 4-mm × 4-mm QFN package

APPLICATIONS

• TFT LCD Using Amorphous Silicon Gate (ASG) Technology