FAN54042 Datasheet (PDF) Download
Fairchild Semiconductor
FAN54042

Description

The FAN5404X family includes I2C controlled 1.55 A USBcompliant switch-mode chargers with power path operation and USB OTG boost operation. Integrated with the charger, the IC supports production test mode, which provides 4.2 V at up to 2.3 A to the system.

Key Features

  • Fully Integrated, High-Efficiency Charger for Single-Cell Li-Ion and Li-Polymer Battery Packs
  • Power Path Circuit Ensures Fast System Startup with a Dead Battery when VBUS is Connected
  • 1.55 A Maximum Charge Current
  • Float Voltage Accuracy: - 0.5% at 25°C - 1% from 0 to 125°C
  • 5% Input and Charge Current Regulation Accuracy
  • Temperature-Sense Input Prevents Auto-Charging for JEITA Compliance
  • Thermal Regulation and Shutdown
  • 4.2 V at 2.3 A Production Test Mode
  • 5 V, 500 mA Boost Mode for USB OTG
  • 28 V Absolute Maximum Input Voltage