AAT1597 is a DC-DC converter with 6-strings white LEDs backlight driver. It’s input voltage can be operated from 2.5V to 24V. 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.
AAT1597 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 PWM pin to adjust the brightness of these LEDs strings.
AAT1597 offers a simple and economical solution for LCD white LEDs backlight driver.