ISL6144 is a high voltage ORing MOSFET controller, it can be used to replace the power ORing diode in high current applications with a suitably sized N-Channel MOSFET to improve power distribution efficiency and availability
The ISL6144 controller replaces traditional ORing diodes in high‑current power distribution systems, improving efficiency and providing fast fault isolation. It integrates an internal charge pump to drive an external N‑Channel MOSFET and features a high‑speed comparator that reacts to dead‑short faults in less than 0.3 µs.
The device operates from a wide supply range of +10 V to +75 V, includes an HR amplifier for quiet slow turn‑off, and offers an open‑drain fault output with a 120 µs delay. It is available in UL‑60950‑compliant TSSOP and QFN packages and is rated for temperatures from –40 °C to +105 °C.
| Supply Voltage Range | +10 V to +75 V |
|---|---|
| Transient Rating | +100 V |
| Reverse Current Fault Isolation | Enabled |
| Internal Charge Pump | Supports N‑Channel MOSFET |
| HS Comparator Response Time | <0.3 µs |
| Fault Output Type | Open‑drain active‑low, 120 µs delay |
| Maximum Junction Temperature | +150 °C (typical) |
| Package Types | 16‑lead TSSOP, 20‑lead 5×5 mm QFN |
It operates from +10 V up to +75 V.
The HS comparator responds in less than 0.3 µs.
It provides an open‑drain active‑low fault output with a 120 µs delay.
The device is offered in a 16‑lead TSSOP and a 20‑lead 5 × 5 mm QFN package.