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FAN54300

Fairchild Semiconductor
Part Number FAN54300
Manufacturer Fairchild Semiconductor
Description Li-Ion Switching Charger
Published Feb 15, 2016
Detailed Description FAN54300— USB-Compliant, Dual-Power Input, Single-Cell, Li-Ion Switching Charger with USB-OTG Boost Regulator August 20...
Datasheet PDF File FAN54300 PDF File

FAN54300
FAN54300

Overview
FAN54300— USB-Compliant, Dual-Power Input, Single-Cell, Li-Ion Switching Charger with USB-OTG Boost Regulator August 2013 FAN54300 — USB-Compliant, Dual-Power Input, Single-Cell, Li-Ion Switching Charger with USB-OTG Boost Regulator Features  Fully Integrated, High-Efficiency Charger for Single-Cell Li-Ion and Li-Polymer Battery Packs  Accepts USB or Dedicated Power Input Source  5 V, 300 mA Boost Mode for USB OTG from 2.
5 to 4.
5 V Battery Input  Charge Voltage Accuracy: 0.
5% at TA=25°C 1% from TA=0 to 125°C  5% USB Input Current Regulation Accuracy  5% Charge Current Regulation Accuracy  20 V Absolute Maximum Input Voltage  9.
5 V Maximum Input Operating Voltage on VIN Pin, 6.
5 V Maximum on VBUS Pin  Up to 1.
5 A Maximum Charge Rate  Programmable Charge and Mode through High-Speed I2C Interface (3.
4 Mb/s) with Fast Mode Plus Compatibility – Input Current – Fast-Charge / Termination Current – Charger Voltage – Safety Timer – Termination Enable  3 MHz Synchronous Buck PWM Controller with Wide Duty Cycle Range  Small Footprint, 1 H, External Inductors  Safety Timer with Reset Control  Weak Input Sources Accommodated by Reducing Charging Current to Maintain Minimum VBUS Voltage  Low Reverse Leakage from Battery Drain to VBUS or VIN  Programmable LED Drive for Charge Indication  Register and Slave Addresses Compatible with FAN540X and FAN542X Families Description The FAN54300 combines two highly integrated switch-mode chargers and a boost regulator to minimize single-cell Li-Ion charging time from a USB and/or auxiliary power source.
Charging parameters and operating modes are programmable through an I2C Bus® interface that operates up to 3.
4 Mbps.
The charger and boost regulator circuits switch at 3 MHz to minimize the size of the external passive components.
The FAN54300 provides battery charging in three phases: conditioning, constant current, and constant voltage.
To ensure USB compliance and minimize charging time, the USB input current is l...


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