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ADP8870 Parallel Backlight Driver

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Description

Data Sheet Charge-Pump, Parallel Backlight Driver with Image Content PWM Input ADP8870 .
The ADP8870 combines a programmable backlight LED charge-pump driver with automatic phototransistor control of the brightness (LED current) and a PWM.

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Features

* Charge pump with automatic gain selection of 1×, 1.5×, and 2× for maximum efficiency Two high accuracy (±5%) phototransistor inputs for automated ambient light sensing (ALS) 5 programmable ambient light-sensing zones for optimal backlight power savings Independent ALS control of D7, for automated re

Applications

* Mobile display backlighting Mobile phone keypad backlighting RGB LED lighting LED indication General backlighting of small format displays TYPICAL OPERATING CIRCUIT VOUT VDD_ALS OPTIONAL PHOTOSENSOR PHOTOSENSOR 0.1µF D1 D2 D3 D4 D5 D6 D7 CMP_IN 0.1µF VIN 1µF VDDIO VOUT 1µF nRST SDA SCL nIN

ADP8870 Distributors

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ADP8870 Parallel Backlight Driver Analog Devices
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