Why does lcd use tps65132
Author:Lu Changyun Time:2021-07-20 13:36 Browse(341)
Because the driver chip of LCD display module needs avdd: + 5V
Because the driver chip of LCD display module needs avdd: + 5V and avee: - 5V level, the general motherboard power supply is only VCC / VDD + 2.8 ~ + 3.3V, iovdd + 1.8V. If the main board can not supply avdd / avee, it needs to use the level conversion chip, and use VCC / VDD to generate avdd and avee. So will use tps65132, or hx5186a and other voltage conversion chip.. The task occupies the pit.