Renesas Electronics Corporation OR Controllers, Ideal Diodes ISL6144IRZA-T

The ISL6144IRZA-T is a high voltage ORing MOSFET controller designed for power distribution systems, operating within a supply voltage range of +9V to +75V and capable of handling transient voltages up to +100V. It features an internal charge pump that allows the use of N-Channel MOSFETs, enhancing power distribution efficiency by replacing traditional power ORing diodes. The controller includes a high-speed comparator with a response time of less than 0.3µs to detect dead shorts, and a hysteretic regulating amplifier that ensures a controlled turn-off of the MOSFET in under 100µs during power supply shutdowns. The device provides a fault output with a 120µs delay to indicate various fault conditions, including short circuits and blown fuses. It is packaged in a 20-lead QFN format, which is compliant with UL60950 creepage requirements and offers a compact footprint for improved PCB efficiency. The ISL6144IRZA-T is suitable for applications in N + 1 redundant distributed power systems, telecom/datacom systems, and file and network servers, making it a versatile choice for engineers looking to enhance system reliability and efficiency.