ISL61852KIRZ

The ISL61852KIRZ from Intersil is an innovative hot-swap controller designed to protect voltage packages from in-rush current during initial insertion. This device is designed to provide a stable, reliable and safe operating environment for voltage packages and loads. It offers optimum protection against power supply undervoltage and overvoltage transients such as thunderstorms, brownouts, and surges, while also accommodating hot-swapping. It consists of a low-side power MOSFET driver, current limit signals, status and control logic, and an integrated current limiter.

The ISL61852KIRZ is optimized for use in a wide range of applications, including telecommunications, data center, data transmission, and high-speed computer memory. It is suitable for use in the hot-swap functionality of servers and multiplexers, providing reliable protection of the system’s power supplies. Additionally, it is a great choice for hot-swapping of storage, networking, and other high performance devices as well as low-power embedded systems.

The ISL61852KIRZ features an integrated current-limiting circuit that prevents over-current from creating in-rush current or damage to sensitive components. The device also prevents low-voltage damage by monitoring the input voltage and turning the power off if it drops below a certain level. This efficient design helps to ensure a reliable hot-swapping operation, with maximum load capability and protection.

The ISL61852KIRZ has an internal logic block that controls all of the hot-swap functions. It includes a voltage supervisor, a hot-swap timer, an auto recovery mechanism, and a biased voltage monitoring function. The voltage supervisor monitors the system voltage and provides an external current limit signal when the monitored voltage falls below a specific threshold. The hot-swap timer helps to prevent over-current by gradually increasing the current limit until the voltage reaches a set limit. The auto recovery mechanism detects over-current and resets the device to its prior state. Finally, the biased voltage monitoring function provides an output to indicate when the voltage is above a particular set point.

To ensure that the system is operating at its optimal level, the ISL61852KIRZ features a shutdown pin. This pin will immediately disconnect the load from the system if the voltage drops below a set level. This pin helps to ensure that the device is not damaged by over-current or under-voltage conditions. Additionally, the device features an open-drain FET driver which allows for either an active-low or active-high shutdown.

The ISL61852KIRZ is an effective device for helping to protect sensitive components and power supplies in hot-swap environments. It offers protection against power supply transients and can be easily configured to meet specific customer requirements. With its integrated current limiting circuit and efficient design, the ISL61852KIRZ is an ideal choice for applications requiring maximum protection.