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Technical content
Features
70mΩ High-Side MOSFET Current Limit for MHL Power Switch Operating Range:2.7V to 5.5V 1mS Typical Rise Time Fast Overcurrent Response -3µs (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 ) Output Reverse-Voltage Protection SOT-23-6 Packages
Applications
MHL Power Switch 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 G529 is an integrated power switch for self-powered and bus-powered Universal Serial Bus (USB) applications. R DS(ON) is 70mΩ. 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 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.
Ordering Information
NUMBER MARKING ENABLE Current Limit Output Shutdown Resistor TEMP. RANGE PACKAGE (Green) G529A1TB1U 529Ax Active High 1.2A No -40 oC to +85oC SOT-23-6 G529A2TB1U 529Bx Active Low 1.2A No -40 oC to +85oC SOT-23-6 Note: TB: SOT-23-6 1: Bonding Code U: Tape & Reel 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. G529 GND OUT43IN G529 5O U T OCEN (EN) SOT-23-6 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. G529 GND OUT43IN G529 5O U T OCEN (EN) SOT-23-6