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This literature is subject to all applicable copyright laws and is not for resale in any manner.FAN54040 - FAN54047 USB-OTG,1.55 A Li-Ion Switching Charger with Power Path and 2.3 A Production Test Support February 2015 FAN54040 FAN54047 USB-OTG, 1.55 A, Li-Ion Switching Charger with Power Path and 2.3 A Production Test Support Description Features 2 The FAN5404X family includes I C controlled 1.55 A USB- Fully Integrated, High-Efficiency Charger for Single-Cell compliant switch-mode chargers with power path operation Li-Ion and Li-Polymer Battery Packs and USB OTG boost operation. Integrated with the charger, Power Path Circuit Ensures Fast System Startup with a the IC supports production test mode, which provides 4.2 V Dead Battery when VBUS is Connected at up to 2.3 A to the system. 1.55 A Maximum Charge Current To facilitate fast system startup, the IC includes a power Float Voltage Accuracy: path circuit, which disconnects the battery from the system rail, ensuring that the system can power up quickly following 0.5% at 25C a VBUS connection. The power path circuit ensures that the 1% from 0 to 125C system rail stays up when the charger is plugged in, even if 5% Input and Charge Current Regulation Accuracy the battery is dead or shorted. Temperature-Sense Input Prevents Auto-Charging for The charging parameters and operating modes are 2 JEITA Compliance programmable through an I C Interface that operates up to Thermal Regulation and Shutdown 3.4 Mbps. The charger and boost regulator circuits switch at 3 MHz to minimize the size of external passive components. 4.2 V at 2.3 A Production Test Mode 5 V, 500 mA Boost Mode for USB OTG The FAN5404X provides battery charging in three phases: conditioning, constant current, and constant voltage. The 28 V Absolute Maximum Input Voltage integrated circuit automatically restarts the charge cycle 6 V Maximum Input Operating Voltage when the battery falls below a voltage threshold. If the input 2 Programmable through High-Speed I C Interface source is removed, the IC enters a high-impedance mode (3.4 Mb/s) with Fast Mode Plus Compatibility blocking battery current from leaking to the input. Charge 2 status is reported back to the host through the I C port. Input Current Fast-Charge / Termination Current Dynamic input voltage control prevents a weak adapters voltage from collapsing, ensuring charging capability from Float Voltage such adapters. Termination Enable The FAN5404X is available in a 25-bump, 0.4 mm pitch, 3 MHz Synchronous Buck PWM Controller with WLCSP package. Wide Duty Cycle Range Small Footprint 1 H External Inductor VBUS L1 SW C C BUS SYS Safety Timer with Reset Control SYS PGND Dynamic Input Voltage Control SYSTEM Q5 PMID GATE LOAD Very Low Battery Current when Charger Inactive C MID External PMOS Applications FAN5404X POK B VBAT ILIM C BAT Cell Phones, Smart Phones, PDAs SDA NTC Tablet, Portable Media Players SCL RREF REF BATTERY Gaming Device, Digital Cameras DIS CREF + STAT T AGND Figure 1. Typical Application All trademarks are the property of their respective owners. 2012 Fairchild Semiconductor Corporation www.fairchildsemi.com FAN54040 FAN54047 Rev. 1.3