Is Now Part of To learn more about ON Semiconductor, please visit our website at www.onsemi.com Please note: As part of the Fairchild Semiconductor integration, some of the Fairchild orderable part numbers will need to change in order to meet ON Semiconductors system requirements. Since the ON Semiconductor product management systems do not have the ability to manage part nomenclature that utilizes an underscore ( ), the underscore ( ) in the Fairchild part numbers will be changed to a dash (-). This document may contain device numbers with an underscore ( ). Please check the ON Semiconductor website to verify the updated device numbers. The most current and up-to-date ordering information can be found at www.onsemi.com. Please email any questions regarding the system integration to Fairchild questions onsemi.com. ON Semiconductor and the ON Semiconductor logo are trademarks of Semiconductor Components Industries, LLC dba ON Semiconductor or its subsidiaries in the United States and/or other countries. ON Semiconductor owns the rights to a number of patents, trademarks, copyrights, trade secrets, and other intellectual property. A listing of ON Semiconductors product/patent coverage may be accessed at www.onsemi.com/site/pdf/Patent-Marking.pdf. ON Semiconductor reserves the right to make changes without further notice to any products herein. ON Semiconductor makes no warranty, representation or guarantee regarding the suitability of its products for any particular purpose, nor does ON Semiconductor assume any liability arising out of the application or use of any product or circuit, and specifically disclaims any and all liability, including without limitation special, consequential or incidental damages. Buyer is responsible for its products and applications using ON Semiconductor products, including compliance with all laws, regulations and safety requirements or standards, regardless of any support or applications information provided by ON Semiconductor. Typical parameters which may be provided in ON Semiconductor data sheets and/or specifications can and do vary in different applications and actual performance may vary over time. All operating parameters, including Typicals must be validated for each customer application by customers technical experts. ON Semiconductor does not convey any license under its patent rights nor the rights of others. ON Semiconductor products are not designed, intended, or authorized for use as a critical component in life support systems or any FDA Class 3 medical devices or medical devices with a same or similar classification in a foreign jurisdiction or any devices intended for implantation in the human body. Should Buyer purchase or use ON Semiconductor products for any such unintended or unauthorized application, Buyer shall indemnify and hold ON Semiconductor and its officers, employees, subsidiaries, affiliates, and distributors harmless against all claims, costs, damages, and expenses, and reasonable attorney fees arising out of, directly or indirectly, any claim of personal injury or death associated with such unintended or unauthorized use, even if such claim alleges that ON Semiconductor was negligent regarding the design or manufacture of the part. ON Semiconductor is an Equal Opportunity/Affirmative Action Employer. This literature is subject to all applicable copyright laws and is not for resale in any manner.FAN5401X Family USB-Compliant Single-Cell Li-Ion Switching Charger with USB-OTG Boost Regulator July 2012 FAN54010 / FAN54011 / FAN54012 / FAN54013 / FAN54014 USB-Compliant Single-Cell Li-Ion Switching Charger with USB-OTG Boost Regulator Features Description The FAN54010 family (FAN5401X) combines a highly Fully Integrated, High-Efficiency Charger for Single-Cell integrated switch-mode charger, to minimize single-cell Lithium- Li-Ion and Li-Polymer Battery Packs ion (Li-ion) charging time from a USB power source, and a Faster Charging than Linear boost regulator to power a USB peripheral from the battery. Charge Voltage Accuracy: 0.5% at 25C The charging parameters and operating modes are 2 1% from 0 to 125C programmable through an I C Interface that operates up to 3.4 Mbps. The charger and boost regulator circuits switch at 5% Input Current Regulation Accuracy 3MHz to minimize the size of external passive components. 5% Charge Current Regulation Accuracy The FAN5401X provides battery charging in three phases: 20 V Absolute Maximum Input Voltage conditioning, constant current, and constant voltage. 6 V Maximum Input Operating Voltage To ensure USB compliance and minimize charging time, the 2 input current is limited to the value set through the I C host. 1.45 A Maximum Charge Rate Charge termination is determined by a programmable 2 Programmable through High-Speed I C Interface minimum current level. A safety timer with reset control 2 (3.4 Mb/s) with Fast Mode Plus Compatibility provides a safety backup for the I C host. Input Current The integrated circuit (IC) automatically restarts the charge Fast-Charge / Termination Current cycle when the battery falls below an internal threshold. If the input source is removed, the IC enters a high-impedance Charger Voltage mode with leakage from the battery to the input prevented. Termination Enable 2 Charge status is reported back to the host through the I C 3 MHz Synchronous Buck PWM Controller with Wide port. Charge current is reduced when the die temperature Duty Cycle Range reaches 120C. Small Footprint 1H External Inductor The FAN5401X can operate as a boost regulator on command from the system. The boost regulator includes a Safety Timer with Reset Control soft-start that limits inrush current from the battery. 1.8 V Regulated Output from VBUS for Auxiliary Circuits The FAN5401X is available in a 1.96 x 1.87 mm, 20-bump, Weak Input Sources Accommodated by Reducing 0.4 mm pitch, WLCSP package. Charging Current to Maintain Minimum VBUS Voltage Low Reverse Leakage to Prevent Battery Drain to VBUS 5 V, 500 mA Boost Mode for USB OTG for 3.0 V to 4.5 V Battery Input Applications Cell Phones, Smart Phones, PDAs Tablet, Portable Media Players Gaming Device, Digital Cameras Figure 1. Typical Application All trademarks are the property of their respective owners. 2011 Fairchild Semiconductor Corporation www.fairchildsemi.com FAN5401X Family Rev. 1.0.4