AAT1262中文资料A SINGLE-CHIP SOLUTION WITH LCD PMU AND LED DRIVER FOR TFT LCD PANELS数据手册AAT规格书

描述 Description

\tThe AAT1262 is a single-chip solution for TFT LCD panel application. It contains multi-channel TFT LCD power solution that provides a step-up PWM controller, LDO driver’s one operational amplifier, voltage detector, low dropout linear regulator, one GPM controller up to 35V for TFT LCD display, and WLED backlight driver. It can drive 6-strings of WLEDs using current balance. The mismatch between each string current is within 2%. The maximum mismatch among each IC is 3%.


\tThe AAT1262 contains an operational amplifier. In the short circuit condition, the operational amplifier is capable of sourcing ±200mA current. With the minimal external components, the AAT1262 offers a simple and economical solution for TFT LCD power.

特性 Features

• WLED Current Up to 30mA per String
• Maximum 60 WLEDs
• PWM Dimming Control from 100Hz to 25kHz
• AVDD Output Voltage Adjustable up to 14.5V
• Programmable Soft-Start
• Fault and Thermal Protection
• Adjustable Low Dropout Voltage Regulator
• GPM Controller
• 35V High Voltage Switch for VGH
• Negative LDO Driver for Gate-Low Supply
• VCOM Operational Amplifier
• VQFN 40L-5 x 5 Package

应用 Application

• TFT LCD Panel