G524A/B/C/D Global Mixed-mode Technology Power Distribution Switch Features General Description 70mΩ High-Side MOSFET (G524A,G524B,G524C,G524D) Available with 4 Versions of Current Limits with Foldback Operating Range:2.7V to 5.5V 1mS Typical Rise Time Fast Overcurrent Response -1.5µs (TYPICAL) Under voltage Lockout 130µA 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 The G524 is an integrated power switch for self-powered and bus-powered Universal Serial Bus (USB) applications. G524A, G524B, G524C, G524D are 70mΩ RDS(ON). Several Protection features include current limiting and thermal shutdown to prevent catastrophic switch failure caused by increasing power dissipation when continuous heavy loads or short circuit occurs. 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. When the output voltage is higher than input voltage, the power switch is turned off by internal output reverse-voltage comparator. Output ( OC ) Available with or without Output Shutdown Pull-low Resister Output Reverse-Voltage Protection SOT-23-5, TSOT-23-6, MSOP-8 and MSOP-8 (FD) Packages UL Certification_#E232223 CB Test Certification by IEC 60950-1:2005 (2nd Edition); Am 1:2009 OC is an open-drain output report over-current or over-temperature event and has typical 9ms deglitch timeout period. In addition, OC also reports output reverse-voltage condition with typical 5ms deglitch timeout period. 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 Pin Configuration Typical Application Circuit G524 OUT 1 GND 2 OC 3 G524 5 IN EN (EN) 1 6 OC GND 2 5 OUT IN 3 4 OUT G524 4 EN (EN) Power Supply 2.7V to 5.5V TSOT-23-6 SOT-23-5 IN 1µF* OUT Load 0.1µF 22µF OC G524 G524 ON GND 1 8 OUT GND 1 8 OUT IN 2 7 OUT IN 2 7 OUT IN 3 6 OUT* IN 3 6 OUT* EN (EN) 4 5 OC EN (EN) 4 5 OC EN(EN) OFF MSOP-8 Thermal Pad *: 1µF of input capacitor is enough in most application cases. If the PCB trace of power rail to IN is long, larger input capacitor is necessary. MSOP-8 (FD) Note: Recommend connecting the Thermal Pad to the GND for excellent power dissipation. *Pin#6 should be considered as OUT when circuit design and PCB layout, but it is NC pin actually. TEL: 886-3-5788833 http://www.gmt.com.tw Ver: 0.6 Jun 13, 2013 1