Part FAN54015
Description USB-Compliant Single Cell Li-Ion Switching Charger
Manufacturer Fairchild Semiconductor
Size 1.64 MB
Fairchild Semiconductor
FAN54015

Overview

The FAN54015 combines a highly integrated switch-mode charger, to minimize single-cell Lithium-ion (Li-ion) charging time from a USB power source, and a boost regulator to power a USB peripheral from the battery. The charging parameters and operating modes are programmable through an I2C Interface that operates up to 3.4 Mbps.

  • Fully Integrated, High-Efficiency Charger for Single-Cell Li-Ion and Li-Polymer Battery Packs
  • Faster Charging than Linear
  • Charge Voltage Accuracy: 0.5% at 25°C 1% from 0 to 125°C
  • 5% Input Current Regulation Accuracy
  • 5% Charge Current Regulation Accuracy
  • 20 V Absolute Maximum Input Voltage
  • 6 V Maximum Input Operating Voltage
  • 1.45 A Maximum Charge Rate
  • Programmable through High-Speed I2C Interface (3.4 Mb/s) with Fast Mode Plus Compatibility - Input Current - Fast-Charge / Termination Current - Charger Voltage - Termination Enable
  • 3 MHz Synchronous Buck PWM Controller with Wide Duty Cycle Range