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G556 Datasheet(PDF) 1 Page - Global Mixed-mode Technology Inc |
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G556 Datasheet(HTML) 1 Page - Global Mixed-mode Technology Inc |
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1 / 1 page  Ver 1.3 Sep 29, 2010 TEL: 886-3-5788833 http://www.gmt.com.tw 1 G556 Global Mixed-mode Technology Inc. Dual Power Distribution Switch Features 100m Ω High-Side MOSFET Available with 4 Versions of Current Limits with Foldback Operating Range:2.7V to 5.5V 400µS Typical Rise Time Under voltage Lockout 65µA Quiescent Supply Current 1µA 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 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 G556 is an integrated dual channel 100m Ω 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 MARKING ENABLE Current Limit TEMP. RANGE PACKAGE (Green) G556A1P1U G556A1 Active High 2A -40°C to +85°C SOP-8 G556A2P1U G556A2 Active Low 2A -40°C to +85°C SOP-8 G556B1P1U G556B1 Active High 1.5A -40°C to +85°C SOP-8 G556B2P1U G556B2 Active Low 1.5A -40°C to +85°C SOP-8 G556C1P1U G556C1 Active High 1A -40°C to +85°C SOP-8 G556C2P1U G556C2 Active Low 1A -40°C to +85°C SOP-8 G556D1P1U G556D1 Active High 0.75A -40°C to +85°C SOP-8 G556D2P1U G556D2 Active Low 0.75A -40°C to +85°C SOP-8 Pin Configuration Typical Application Circuit 8 6 5 1 2 3 4 GND OC1 EN1(EN1) SOP-8 G556 7 OUT1 IN OUT2 EN2 (EN2) 0.1µF 22µF Load OC1 EN1 (EN1) OC2 EN2 (EN2) 0.1µF 22µF Load 1µF 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 G556 7 OUT1 IN OUT2 EN2 (EN2) 0.1µF 22µF Load OC1 EN1 (EN1) OC2 EN2 (EN2) 0.1µF 22µF Load 1µF Power Supply 2.7V to 5.5V OUT1 OUT2 OC2 IN 7 2 1 3 4 5 8 |
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