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FAN54047 Datasheet Li-Ion Switching Charger

Manufacturer: Fairchild (now onsemi)

Download the FAN54047 datasheet PDF. This datasheet also includes the FAN54040 variant, as both parts are published together in a single manufacturer document.

📥 Download Datasheet

Note: The manufacturer provides a single datasheet file (FAN54040-FairchildSemiconductor.pdf) that lists specifications for multiple related part numbers.

General 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.

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 quickly following a VBUS connection.

Overview

FAN54040 - FAN54047— USB-OTG,1.55 A Li-Ion Switching Charger with Power Path and 2.3 A Production Test Support July 2013 FAN54040 — FAN54047 USB-OTG, 1.55 A, Li-Ion Switching Charger with Power Path and 2.

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 T.