White LED Driver IC

The SM8135B is a Charge Pump type White LED Driver It CAN drive 1 to 4 backlight white LED connected in parallel, making it ideal for portable devices with small LCD The Charge Pump switches between 1 bypass mode, 1.5 and 2 boost mode in response to LED drive current requirements. The boost switching occurs in response to the drive current of all the connected LED and thus supports variations in LED forward-bias volt- age drop (VF). Besides, the detection of switching is repeated in approx. 1sec-cycle by mode reset action, the SM8135B CAN respond to temporary variation of supply voltage. These ingenuities on switching detection CAN prolong the battery life to the fullest extent. Each LED drive current is controlled by a 4-channel LED drive current control circuit. The LED drive current per channel is setup by external resistor. By Seiko NPC Corp.
SM8135B 's PackagesSM8135B 's pdf datasheet

SM8135B Pinout, Pinouts
SM8135B pinout,Pin out
This is one package pinout of SM8135B,If you need more pinouts please download SM8135B's pdf datasheet.

SM8135B Application circuits
SM8135B circuits
This is one application circuit of SM8135B,If you need more circuits,please download SM8135B's pdf datasheet.

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