AAT1583数据手册AAT中文资料规格书

描述 Description

\tAAT1583 is a DC-DC converter with 6-strings white LEDs backlight driver. It’s input voltage can be operated from 2.7V to 27V. It can drive 6-strings of LEDs using current balance. The mismatch current of every string is within ±1.5%. The maximum mismatch among each IC is ±3.0%. The OVP pin can be setup for different LEDs configuration.


\tAAT1583 provides protection when the LEDs are in open conditions. The protective function closes the open LEDs string and keep the others working. Users can use the DIM pin to adjust the brightness of these LEDs strings.


\tAAT1583 offers a simple and economical solution for LCD white LEDs backlight driver. Otherwise, its small package (WQFN 3x3) helps to save PCB routing area.

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特性 Features

• 6 Channels, Adjust LED Current up to 25mA
• 2.7V to 27V Input Range
• WLED Open Protection
• OVP and Thermal Protection
• Adjustable 0.2MHz to 2MHz Switching Frequency
• Wide PWM Input Frequency: 100Hz to 20kHz
• Internal Soft-Start and 40V Power MOSFET
• Maximum ±1.5% Current Matching
• Maximum ±3.0% Current Accuracy
• Adjustable OVP Voltage
• Compact WQFN20L-3 x 3 Package
• Compact WQFN20L-4 x 4 Package

应用 Application

• Notebook Panel BacklightLCD Monitors BacklightLCD Panel for Portable Devices