november 2011 ? 2011 fairchild semiconductor corporation www.fairchildsemi.com FSA831 ? rev. 1.0.2 FSA831 usb2.0 high-speed (480mbps) ch arger detector with isolation switch FSA831 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 switch type isolation switch closes for charging downstream port (cdp) standard downstream port (sdp) v bus 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 exc eed 45 minutes, per bc1.2. related resources ? for samples and questions, please contact: analogswitch@fairchildsemi.com . typical application figure 1. mobile phone example system on chip ( soc ) usb port v bus_in d - chg_det FSA831 charger li+ bat chg_al_n sw_open ovt regulator and switch control d + id gnd charger detect v bus dm_con gnd dp_con dm_host dp_host usb phy good_bat ?
? 2011 fairchild semiconductor corporation www.fairchildsemi.com FSA831 ? rev. 1.0.2 10 FSA831 usb2.0 high-speed (480mbps) char ger detector with isolation switch physical dimensions figure 10. 10-lead, micropak? part number top mark operating temperature range package description packing method FSA831l10x ky -40 to 85c 10-lead, micropak? 1.6 x 2.1mm, 0.5mm pitch tape & reel package drawings are provided as a service to customers considering fairchild component s. drawings may change in any manner wit hout notice. please note the revision and/or date on the drawing and contact a fairchild semi conductor representative to verify or o btain the most recent revision. package specific ations do not expand the terms of fairchild?s worldwide terms and conditi ons, specifically the warranty therein, which covers fairchild products. always visit fairchild semiconductor?s online packa ging area for the most recent package drawings: http://www.fairchildsemi.com/packaging/ . bottom view top view recommended land pattern side view 2x 2x notes: a. package conforms to jedec registration mo-255, variation uabd . b. dimensions are in millimeters. c. dimensions and tolerances per asme y14.5m, 1994. d. presence of ce nter pad is package supplier dependent. if present it is not intended to be soldered and has a black oxide finish. e. drawing filename: mkt-mac10arev5. 0.10 c 0.10 c 0.10 cab 0.05 c pin1 ident is 2x longer than other lines a b c 0.35 0.25 9x 9x 1 4 9 6 0.25 0.15 10 5 0.50 0.56 1.62 0.05 0.00 0.05 c 0.55 max 0.05 c 1.60 2.10 (0.35) (0.25) 0.50 10x 10x (0.11) 1.12 1.62 keepout zone, no traces or vias allowed (0.20) (0.15) 0.35 0.25 0.35 0.25 detail a detail a 2x scale 0.35 0.25 0.65 0.55 d all features (0.36) (0.29) 0.56
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