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19-4485; Rev 0; 2/09
www.DataSheet4U.com KIT ATION EVALU E L B AVAILA
8-String White LED Driver with SMBus for LCD Panel Applications
General Description Features
o Accurate Dimming Control Using SMBus, PWM Interface o Dimming Range with 8-Bit Resolution o Adjustable DPWM Frequency with 1.5% Accuracy o Up to Eight Parallel Strings Multiple SeriesConnected LEDs o ±1.5% Current Regulation Accuracy Between Strings o Low String Feedback Voltage: 625mV at 25mA LED Current o Full-Scale LED Current Adjustable from 15mA to 30mA, or Preset 25mA o Open and Short LED Protections o Output Overvoltage Protection o 0.15Ω Internal HV Power MOSFET (45V max) o Wide Input-Voltage Range from 4.