ON Semiconductor Is Now To learn more about onsemi, please visit our website at www.onsemi.com onsemi andand other names, marks, and brands are registered and/or common law trademarks of Semiconductor Components Industries, LLC dba onsemi or its affiliates and/or subsidiaries in the United States and/or other countries. onsemi owns the rights to a number of patents, trademarks, copyrights, trade secrets, and other intellectual property. A listing of onsemi product/patent coverage may be accessed at www.onsemi.com/site/pdf/Patent-Marking.pdf. onsemi reserves the right to make changes at any time to any products or information herein, without notice. The information herein is provided as-is and onsemi makes no warranty, representation or guarantee regarding the accuracy of the information, product features, availability, functionality, or suitability of its products for any particular purpose, nor does onsemi 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 onsemi products, including compliance with all laws, regulations and safety requirements or standards, regardless of any support or applications information provided by onsemi. Typical parameters which may be provided in onsemi 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. onsemi does not convey any license under any of its intellectual property rights nor the rights of others. onsemi 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 onsemi products for any such unintended or unauthorized application, Buyer shall indemnify and holdo nsemi 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 onsemi was negligent regarding the design or manufacture of the part. onsemi is an Equal Opportunity/Affirmative Action Employer. This literature is subject to all applicable copyright laws and is not for resale in any manner. Other names and brands may be claimed as the property of others. FSA831A USB2.0 High-Speed (480Mbps) Charger Detector with Isolation Switch FSA831A USB2.0 High-Speed (480Mbps) Charger Detection with Isolation Switch Features Description USB Battery Charging Rev. 1.2 The FSA831A is a charger-detection IC with an integrated Supports Data Contact Detect (DCD) isolation switch for use with a micro/mini USB port. The USB Detection Dead Battery Provision (DBP) FSA831A detects battery chargers and is compliant with w ith 30-Minute Timer USB Battery Charging Specification, Rev 1.2 (BC1.2). The algorithm incorporates Data Contact Detection (DCD), which Isolation Sw itch Closes for ensures that the shorter, inner pins of the USB connector are Sw itch Type Charging Dow nstream Port (CDP) making contact prior to continuing with battery charger Standard Downstream Port (SDP) detection. The device determines if a Dedicated Charging 28 V Over-Voltage Tolerance Port (DCP), Charging Downstream Port (CDP), or a typical V BUS PC host, called a Standard Downstream Port (SDP), is -2 V Under-Voltage Tolerance connected. If a charger is detected, the FSA831A 10-Lead MicroPak determines whether the charger is a DCP or CDP. For SDP Package 1.6 x 2.1 mm, 0.5 mm Pitch and CDP detection, an internal isolation switch is closed to connect the D+/D- lines of the USB cable to the resident Ordering FSA831AL10X USB transceiver within the portable device. The FSA831A Information conforms to all the constraints for the Dead Battery Provision (DBP) within the BC1.2 specification, including a 30-minute Applications timer that cannot exceed 45 minutes, per BC1.2. MP3, Mobile Internet Device (MID), Cell Phone, PDA, Digital Camera, Notebook and Netbook Typical Application FSA831A CHG AL USB Port Regulator Baseband and Switch V BUS Processor OVT V Control BUS IN GOOD BAT DM CON DM HOST D- USB PHY DP CON DP HOST D+ SW OPEN Charger ID Detect GND GND Charger CHG DET Li+ Bat Figure 1. Mobile Phone Example 2012 Semiconductor Components Industries, LLC Publication Order Number: December-2017, Rev 2. FSA831A/D