Texas Instruments LM8342 Programmable TFT Vcom Calibrator with Non-Volatile Memory LM8342SDX/NOPB

The LM8342SDX/NOPB is a programmable TFT Vcom calibrator designed by Texas Instruments, featuring a non-volatile memory that simplifies the Vcom calibration process for TFT panels. It integrates a 7-bit EEPROM and a DAC-controlled current source, allowing for electronic adjustment of the Vcom level during production. The device operates with an I¬=C compatible interface, supporting a maximum bus speed of 400 kHz, and requires no external programming voltage. The LM8342 is capable of outputting a stable Vcom level, typically set at half of AVDD, with a current output that can be adjusted from 1/128 to 128/128 of a maximum current determined by external resistors. It operates within a temperature range of -40¬8C to 85¬8C and supports a digital supply voltage of 2.25V to 3.6V, along with an analog reference voltage of 4.5V to 18V. The device is packaged in a compact WSON format, making it suitable for space-constrained applications. Engineers looking for a reliable solution for TFT panel calibration may find the LM8342SDX/NOPB to be a valuable component for their projects.