ver: 0.1 jan 28, 2010 tel: 886-3-5788833 http://www.gmt.com.tw 1 G562 global mixed-mode technology inc. power switch with over-voltage and user- programmable current limit protection features ? 200 m high-side mosfet ? user-programmable current limit ? build-in thermal shutdown ? vin range up to 30v ? fast over-voltage lockout (<1us) ? battery over-voltage lockout ? under-voltage lockout ? logic level enable pin ? protection status flag output ? tdfn2x2-8 package applications ? high-side power protection switch ? usb power management ? usb host and self-powered bubs ? usb bus-powered hubs ? hot plug-in power supplies ? battery-charger circuits general description the G562 is an integrated power switch with over-voltage and user-programmable current limit pro- tection. the current limiting and thermal shutdown prevent failures caused by increasing power dissipa- tion when continuous heavy loads or short circuit oc- curs. the current limit is user programmable. it disconnect power from output rapidly if over voltage is detected. in the case of an overcurrent condition, it limits the system current at the threshold value, and if the over current persists, switches the pass element off after a blanking period. a built-in charge pump is used to drive the n-channel mosfet. other features include under-voltage lockout, battery over-voltage lockout, and fault flag output that indi- cate fault events. the G562 is available in tdfn2x2-8 package. ordering information order number marking ov threshold temp. range package (green) G562arc1u 562a 5.85v -40 c to +85 c tdfn2x2-8 G562brc1u 562b 6.80v -40 c to +85 c tdfn2x2-8 note: rc: tdfn2x2-8 1: bonding code u: tape & reel pin configuration typical application circuit G562 v out v in 1 f c in 1 f in flag gnd 50k flag power out ce tdfn2x2-8 1 2 3 4 8 7 6 5 thermal pad G562 gnd in nc flag vbat ce ilim out note: recommend connecting the thermal pad to the ground for excellent power dissipation. battery power 50k vbat ilim 25k G562 v out v in 1 f c in 1 f in flag gnd 50k flag power out ce tdfn2x2-8 1 2 3 4 8 7 6 5 thermal pad G562 gnd in nc flag vbat ce ilim out note: recommend connecting the thermal pad to the ground for excellent power dissipation. battery power 50k vbat ilim 25k
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