ver 1.9 sep 29, 2010 tel: 886-3-5788833 http://www.gmt.com.tw 1 G526 global mixed-mode technology inc. dual power distribution switch features ? 100m high-side mosfet ? operating range:2.7v to 5.5v ? 400 s typical rise time ? under voltage lockout ? 65 a quiescent supply current ? 1 a maximum shutdown supply current ? logic level enable pin, available with active-high or active-low version ? no reverse current when power off ? deglitched open-drain over-current flag output ( oc ) ? sop-8 package ? ul approved_#e232223 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 G526 is an integrated dual channel 100m power switch for self-powered and bus-powered universal serial bus (usb) applications. several protection features include current limiting with foldback, and thermal shutdown to prevent catas- trophic switch failure caused by increasing power dis- sipation when continuous heavy loads or short circuit occurs. and a built-in charge pump is used to drive the n-channel mosfet that is free of parasitic body diode to eliminate any reversed current flow across the switch when it is powered off. oc is open-drain output report over-current or over-temperature event and has typical 9ms deglitch timeout period. ordering information order number (pb free/green) marking enable temp. range package G526-1p1uf G526-1 active high -40 c to +85 c sop-8 G526-2p1uf G526-2 active low -40 c to +85 c sop-8 note: p1: sop-8 u: tape & reel pin configuration typical application circuit r ul recognized component r ul recognized component 8 6 5 1 2 3 4 gnd oc1 en1(en1) sop-8 G526 7 out1 in out2 en2 (en2) 0.1 f 22 f load oc1 en1 (en1) oc2 en2 (en2) 0.1 f 22 f load 1 f power supply 2.7v to 5.5v out1 out2 oc2 in 7 2 1 3 4 5 8 8 6 5 1 2 3 4 gnd oc1 en1(en1) sop-8 G526 7 out1 in out2 en2 (en2) 0.1 f 22 f load oc1 en1 (en1) oc2 en2 (en2) 0.1 f 22 f load 1 f power supply 2.7v to 5.5v out1 out2 oc2 in 7 2 1 3 4 5 8
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