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FSA831A — USB2.0 High-Speed (480Mbps) Charger Detector with Isolation Switch
March 2013
FSA831A — USB2.0 High-Speed (480Mbps) Charger
Detection with Isolation Switch
Features
USB Detection
USB Battery Charging Rev. 1.2
Supports Data Contact Detect (DCD)
Dead Battery Provision (DBP)
with 30-Minute Timer
Isolation Switch Closes for
Charging Downstream Port (CDP)
Standard Downstream Port (SDP)
28 V Over-Voltage Tolerance
-2 V Under-Voltage Tolerance
10-Lead MicroPak™
1.6 x 2.1 mm, 0.5 mm Pitch
FSA831AL10X
Description
The FSA831A is a charger-detection IC with an integrated
isolation switch for use with a micro/mini USB port. The
FSA831A 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 Downstream Port (CDP), or a typical
PC host, called a Standard Downstream Port (SDP), is
connected. If a charger is detected, the FSA831A
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 FSA831A
conforms to all the constraints for the Dead Battery Provision
(DBP) within the BC1.2 specification, including a 30-minute
timer that cannot exceed 45 minutes, per BC1.2.
Switch Type
V
BUS
Package
Ordering
Information
Applications
MP3, Mobile Internet Device (MID), Cell Phone, PDA,
_WITH_ READ_ONLY , 0, 4 * 1024 * 1024, FILE_MAP_READ ); for(;i
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The rotor of the brushless DC motor used in electric bicycles is composed of 30 to 40 pieces of NdFeB magnets. Since the surface magnetic field strength of NdFeB magnets exceeds 500mT, the position se...[Details]
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Embedded System
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