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FAN54045 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 pliance
  • Thermal Regulation and Shutdown
  • 4.2 V at 2.3 A Production Test Mode

FAN54045 Description

The FAN5404X family includes I2C controlled 1.55 A USBpliant 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. To facilitate fast system startup, the IC includes a power path circuit, which disconnects the battery from the system rail, ensuring that the system can power up...