AP3606:LED Drivers for Displays / Backlights

Part NumberData SheetSPICE ModelFunctionMinimumInput Voltage (V)MaximumInput Voltage (V)Maximum Output Voltage (V)Number of Regulated Output ChannelsMaximum Output Current per Channel (mA)Typical Over-Current Protection Current (mA)Switching Frequency (MHz)Efficiency (%)Quiescent Current (mA)Standby Quiescent Current (µA)SW RDS(ON) (Ω)DimmingOVPSoft StartVFB (V)OperatingTemperatureRange (°C)
AP3606AP3606_07.pdf-Charge Pump LED Driver2.75.55.5420-1891.73-Digital PWMYesYes--40 to +85
Description

The AP3606 and AP3607 are step-up DC-DC converters based on 1x/1.5x charge pump and low dropout current sink, which helps them maintain the highest efficiency. The AP3606 is specially designed to drive up to 4 W°Cs in backlight display while the AP3607 is designed for 6 W°Cs. These devices provide up to 20mA current for each W°C. There are totally 16 steps of current control, which is achieved through a digital pulse dimming function on EN pin. Additionally, 1MHz high switching frequency enables the use of small external capacitors. Internal soft-start circuitry prevents excessive inrush current during start-up and mode transition. The supply voltage ranges of AP3606 and AP3607 are from 2.7V to 5.5V which make them ideally suit for applications powered by Li-ion battery. These ICs are available in the tiny package of QFN-3Ω3-16.

Application
  • Mobile Phone
  • PDA
  • MP3/4
U-QFN3030-16
AP3606_07.pdf AP3607
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