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Technical content
Features
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 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
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 G524 is an integrated power switch for self-powered and bus-powered Universal Serial Bus (USB) applications. G524A, G524B, G524C, G524D are 70m Ω R DS(ON) . Several Protection features include current limiting and thermal shutdown to prevent catastrophic switch fail- ure caused by increasing power dissipation when con- tinuous 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 pow- ered off. When the output voltage is higher than input voltage, the power switch is turned off by internal out- put reverse-voltage comparator. 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. Pin Configuration Typical Application Circuit 0.1µF 22µF Load OC EN(EN) 1µF Power Supply 2.7V to 5.5V OUTIN ON OFF *: 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. G524 GND MSOP-8 G524 OUT EN (EN) OUT OC IN IN OUT* 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. GND TSOT-23-6 OUT43IN G524 5O U T OCEN (EN) GND MSOP-8 (FD) OUT EN (EN) OUT OC IN IN OUT* Thermal Pad SOT-23-5 43OC OUT IN GND G524 G524 EN (EN) 0.1µF 22µF Load OC EN(EN) 1µF Power Supply 2.7V to 5.5V OUTIN ON OFF *: 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. G524 GND MSOP-8 G524 OUT EN (EN) OUT OC IN IN OUT* 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. GND TSOT-23-6 OUT43IN G524 5O U T OCEN (EN) GND MSOP-8 (FD) OUT EN (EN) OUT OC IN IN OUT* Thermal Pad SOT-23-5 43OC OUT IN GND G524 G524 EN (EN)