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Technical content
Features
USB Battery Charging Rev. 1.2 Supports Data Contact Detect (DCD) Dead Battery Provision (DBP) with 30-Minute Timer Switch Type Isolation Switch Closes for Charging Downstream Port (CDP) Standard Downstream Port (SDP) VBUS 28V Over-Voltage Tolerance -2V Under-Voltage Tolerance Package 10-Lead MicroPak™ 1.6 x 2.1mm, 0.5mm Pitch Ordering Information FSA831L10X
Applications
MP3, Mobile Internet Device (MID), Cell Phone, PDA, Digital Camera, Notebook and Netbook
Description
The FSA831 is a charger-detection IC with an integrated isolation switch for use with a micro/mini USB port. The FSA831 detects battery chargers and is compliant with USB Battery Charging Specification, Rev 1.2 (BC1.2). The algorithm incorporates Data Contact Detection (DCD), which ensures that the shorter, inner pins of the USB connector are making contact prior to continuing with battery charger detection. The device determines if a Dedicated Charging Port (DCP), Charging Downstr eam Port (CDP), or a typical PC host, called a Standard Downstream Port (SDP), is connected. If a charger is det ected, the FSA831 determines whether the charger is a DCP or CDP. For SDP and CDP detection, an internal isolation switch is closed to connect the D+/D- lines of the USB cable to the resident USB transceiver within the portable device. The FSA831 conforms to all the constraints for the Dead Battery Provision (DBP) within the BC1.2 specif ication, including a 30-minute timer that cannot exceed 45 minutes, per BC1.2. Related Resources For samples and questions, please contact: analogswitch@fairchildsemi.com. Typical Application Figure 1. Mobile Phone Example
Figure 10. 10-Lead, MicroPak™ therein, which covers Fairchild products. http://www.fairchildsemi.com/packaging/. REGISTRATION MO-255, VARIATION UABD . B. DIMENSIONS ARE IN MILLIMETERS. E. DRAWING FILENAME: MKT-MAC10Arev5.
0.10 CAB
0.55 MAX
1.62 KEEPOUT ZONE, NO TRACES
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Obsolete Not In Production Datasheet contains specifications on a product that is discontinued by Fairchild Semiconductor. The datasheet is for reference information only. Rev. I61