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.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 Description Features The FAN54300 combines two highly integrated switch-mode Fully Integrated, High-Efficiency Charger for Single-Cell chargers and a boost regulator to minimize single-cell Li-Ion Li-Ion and Li-Polymer Battery Packs charging time from a USB and/or auxiliary power source. Accepts USB or Dedicated Power Input Source Charging parameters and operating modes are programmable 2 5 V, 300 mA Boost Mode for USB OTG from 2.5 to 4.5 V through an I C Bus interface that operates up to 3.4 Mbps. Battery Input The charger and boost regulator circuits switch at 3 MHz to minimize the size of the external passive components. Charge Voltage Accuracy: 0.5% at T =25C A 1% from T =0 to 125C A The FAN54300 provides battery charging in three phases: conditioning, constant current, and constant voltage. 5% USB Input Current Regulation Accuracy To ensure USB compliance and minimize charging time, the 5% Charge Current Regulation Accuracy 2 USB input current is limited to the value set through the I C 20 V Absolute Maximum Input Voltage host. Charge termination is determined by a programmable minimum current level. A safety timer with reset control 9.5 V Maximum Input Operating Voltage on VIN Pin, 2 provides a safety backup for the I C host. 6.5 V Maximum on VBUS Pin The IC automatically restarts the charge cycle when the Up to 1.5 A Maximum Charge Rate battery falls below an internal threshold. If the input source is 2 Programmable Charge and Mode through High-Speed I C removed, the IC enters a high-impedance mode, with leakage Interface (3.4 Mb/s) with Fast Mode Plus Compatibility from the battery to the input prevented. Charge status is 2 reported back to the host through the I C port. Charge current Input Current is reduced when the die temperature reaches 120C. Fast-Charge / Termination Current The FAN54300 can operate as a boost regulator on command Charger Voltage from the system. The boost regulator includes a soft-start that Safety Timer limits inrush current from the battery. Termination Enable The FAN54300 is available in a 30-bump, 0.4 mm pitch, wafer-level, chip-scale package (WLCSP). 3 MHz Synchronous Buck PWM Controller with Wide Duty Cycle Range Applications Small Footprint, 1 H, External Inductors Cell Phones, Smart Phones, PDAs Safety Timer with Reset Control Digital Cameras Weak Input Sources Accommodated by Reducing Charging Current to Maintain Minimum V Voltage Portable Media Players BUS 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 Ordering Information Part Number Temperature Range Package Packing 30-Ball, WLCSP, 5x6 Array, 0.4mm Pitch, FAN54300UCX -40 to 85C Tape and Reel 586 m Package Height 2010 Fairchild Semiconductor Corporation www.fairchildsemi.com FAN54300 Rev. 1.0.4