GENERAL DESCRIPTION
The ADD5207 is a white LED driver for backlight applications based on high efficiency, current mode, step-up converter technology. It is designed with a 0.15 Ω, 1.5 A internal switch and a pin-adjustable operating frequency between 600 kHz and 1 MHz.

FEATURES
   White LED driver based on inductive boost converter
      Integrated 40 V MOSFET with 1.5 A peak current limit
      Input voltage range: 6 V to 21 V
      Maximum output adjustable up to 36 V
      600 kHz to 1 MHz adjustable operating frequency
      Typical 39 V fixed overvoltage protection (OVP)
      Built-in soft start for boost converter
   Drives up to 4 LED current strings
      LED current adjustable up to 25 mA for each channel
      Headroom control to maximize efficiency
      Fixed LED dimming frequency: 8 kHz
      LED open fault protection
      Brightness control with PWM input
   Dimming controls
      4-channel operation: 90 degree phase shift between
         channels
      3-channel operation: 120 degree phase shift between
         channels
   General
      Thermal shutdown
      Undervoltage lockout
      14-lead, 4 mm × 3 mm LFCSP

APPLICATIONS
   Notebook PCs, UMPCs, and monitor displays