ISL6144 Datasheet - Intersil（ISL6144数据表英特锡尔）.pdf

ISL6144 Data Sheet October 6, 2011 FN9131.7 High Voltage ORing MOSFET Controller Features The ISL6144 ORing MOSFET Controller and a suitably sized • Wide Supply Voltage Range +9V to +75V N-Channel power MOSFET(s) increases power distribution • Transient Rating to +100V efficiency and availability when replacing a power ORing diode in high current applications. • Reverse Current Fault Isolation In a multiple supply, fault tolerant, redundant power distribution • Internal Charge Pump Allows the use of N-Channel system, paralleled similar power supplies contribute equally to MOSFET the load current through various power sharing schemes. • HS Comparator Provides Very Fast 0.3µs Response Regardless of the scheme, a common design practice is to Time to Dead Shorts on Sourcing Supply. HS Comparator include discrete ORing power diodes to protect against reverse also has Resistor-adjustable Trip Level current flow should one of the power supplies develop a • HR Amplifier allows Quiet, 100µs MOSFET Turn-off for catastrophic output short to ground. In addition, reverse current Power Supply Slow Shut Down can occur if the current sharing scheme fails and an individual power supply voltage falls significantly below the others. • Open Drain, Active Low F