DATASHEET SEARCH SITE | WWW.ALLDATASHEET.COM
Document overview
- Manufacturer or author: Provided By ALLDATASHEET.COM(FREE DATASHEET DOWNLOAD SITE)
- PDF pages: 1
Technical content
Features
70mΩ High-Side MOSFET Operating Range:2.7V to 5.5V 1mS Typical Rise Time Fast Overcurrent Response 1.5µs (TYP.) Under voltage Lockout 130µA Quiescent Supply Current 1µA Maximum Shutdown Supply Current No Reverse Current when Power Off Deglitched Open-Drain Over-Current Flag Output ( OC ) Output Reverse-Voltage Protection SOP-8 Packages
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 G548S is an integrated power switch for self-powered and bus-powered Universal Serial Bus (USB) applications. 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 MOS RDS(ON) TEMP. RANGE PACKAGE (Green) G548S1P11U G548S1 Active High 1.5A 70mΩ -40oC to +85oC SOP-8 Note:P1: SOP-8 1: Bonding Code U: Tape & Reel Pin Configuration Typical Application Circuit 0.1µF 22µF Load OC 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. G548S *Pin#6 should be considered as OUT when circuit design and PCB layout, but it is NC pin actually. GND SOP-8 G548S OUT EN OUT OC IN IN OUT * 0.1µF 22µF Load OC 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. G548S *Pin#6 should be considered as OUT when circuit design and PCB layout, but it is NC pin actually. GND SOP-8 G548S OUT EN OUT OC IN IN OUT *