ADP8870

PRODUCTION

Charge Pump Parallel Backlight Driver with Image Content PWM Input

Part Models
2
1ku List Price
Starting From $1.27

Part Details

  • 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 response of keypad lighting to ambient light levels
  • PWM input can be used for content adaptive brightness control (CABC) of any, or all, of the LEDs
  • PWM input scales the LED output current
  • 7 independent, programmable LED drivers
    • 6 drivers capable of 30 mA (maximum)
    • 1 driver capable of 60 mA (maximum)
  • Programmable maximum current limit (128 levels)
  • Standby mode for <1 μA current consumption
  • 16 programmable fade-in and fade-out times (0.1 sec to 5.5 sec) with choice of square or cubic rates
  • Fading override
  • I2C-compatible interface for all programming
  • Dedicated reset pin and built-in power-on reset (POR)
  • Short-circuit, overvoltage, and overtemperature protection
  • Internal soft start to limit inrush currents
  • Input-to-output isolation during faults or shutdown
  • Operates down to VIN = 2.5 V, with undervoltage lockout (UVLO) at 2.0 V.
  • Available in a small, 2.15 mm × 2.36 mm × 0.6 mm wafer level chip scale package (WLCSP) or a 4 mm × 4 mm × 0.75 mm lead frame chip scale package (LFCSP)
ADP8870
Charge Pump Parallel Backlight Driver with Image Content PWM Input
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