4-Channel Charge Pump LED Driver With Current Balancing And Wide Range PWM Dimming AP3605

The AP3605 is a Step-up DC/DC converter based on 1.5x Charge Pump current source, it is specially designed for LED supplies in backlight Display The AP3605 CAN provide constant current up to 20mA for each LED which is programmed by an external resistor, so it has a total capability to provide 80 mA for 4 LEDs The chip has a good performance of LED current matching and allows PWM brightness dim- ming control. Additionally, high switching frequency up to 1 MHz enables the use of two small external flying capacitors. Internal soft-start circuitry prevents excessive inrush current during start-up. The AP3605 supply voltage range is from 2.7V to 5.5 V, ideally suited for applications powered by the Li-ion battery. The AP3605 is available in a 3mm*3mm QFN-3x3-16 o tiny package. Its operating temperature range is -40 C o to 85 C By BCD Semiconductor Manufacturing Limited
AP3605 's PackagesAP3605 's pdf datasheet

AP3605 Pinout, Pinouts
AP3605 pinout,Pin out
This is one package pinout of AP3605,If you need more pinouts please download AP3605's pdf datasheet.

AP3605 Application circuits
AP3605 circuits
This is one application circuit of AP3605,If you need more circuits,please download AP3605's pdf datasheet.

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