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.

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

■ 6 V Maximum Input Operating Voltage

■ Programmable through High-Speed I2C Interface (3.4 Mb/s) with Fast Mode Plus Compatibility

- Input Current

- Fast-Charge / Termination Current

- Float Voltage

- Termination Enable

■ 3 MHz Synchronous Buck PWM Controller with Wide Duty Cycle Range

■ Small Footprint 1 μH External Inductor

■ Safety Timer with Reset Control

■ Dynamic Input Voltage Control

■ Very Low Battery Current when Charger Inactive

Applications

■ Cell Phones, Smart Phones, PDAs

■ Tablet, Portable Media Players

■ Gaming Device, Digital Cameras