AP3615FNTR-G1 查看數據表（PDF） - BCD Semiconductor

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AP3615FNTR-G1

5 CHANNEL CHARGE PUMP CURRENT SINK FOR LED DRIVER

BCD Semiconductor 

Data Sheet

5 CHANNEL CHARGE PUMP CURRENT SINK FOR LED DRIVER

AP3615

Digital Dimming Operating Diagram

Figure 20. Digital Dimming Operating Diagram of AP3615

Note 3: The dimming control can be achieved by applying a pulse to the EN pin. When the low level duration

time of pulse is between TLOmin and TLOmax, and the high level duration time is larger than THImin, the LED current

will decrease 1/16. If the low level duration time is larger than TSHDNmax, the IC will be turned off. When AP3615

is powered on, the WLED is in full brightness. And it will keep maximum current until the pulse is detected.

After 15 pulses the WLED current decreases to 1/16 of full brightness. It will increase to full brightness if a

pulse is added to EN pin then.

Jul. 2010 Rev. 1. 2

BCD Semiconductor Manufacturing Limited

10

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