AP3152 - Highly Integrated Charge Pump WLED

The AP3152 is a high efficiency charge-pump white LED driver with 1x, 1.5x, 2x operating modes. The AP3152 operates on power supplies from 2.7V to 5.5V. It drives 2, 3 up to four channels of white LEDs. The intensity of each channel can be adjusted by varying the respective current levels.

Each channel can supply up to 30mA current. Up to four channels can be strung together to provide maximum load current of 120mA.

Features

  • Single-Wire Series Interface to Simplify Routing and Control
  • PWM Dimming Control with SDI
  • Up Spread Spectrum
  • Soft Start to Reduce Inrush Current
  • Short-Circuit Protection
  • Over-Voltage Protection
  • Thermal Shutdown
  • Switching Frequency Adjustable

Block Diagram

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