ISL61851GIBZ-T

PMIC - Hot Swap Controllers

The ISL61851GIBZ-T is an integrated hot swap circuit for PCIe applications. The device features programmable current limit, programmable soft-start, inrush current reduction, UVLO, and overcurrent protection. The device utilizes load current sensing to provide precise power-up sequencing and current limiting. The overcurrent protection and inrush current limiting features make the ISL61851GIBZ-T ideal for use in power distribution applications. The device is available in both surface-mount and dual die packages, allowing for easy integration into a wide range of systems.

Application Field

The ISL61851GIBZ-T is an ideal choice for use in systems that require precise power-up sequencing and current limiting. The device is well-suited for use in PCIe expansion cards and other hot-swap applications. The device is also well-suited for use in automotive applications, where precise power sequencing, current limiting, and overcurrent protection are required.

Working Principle

The ISL61851GIBZ-T utilizes load current sensing to provide precise power-up sequencing and current limiting. The device senses the GPIO on the load to ensure that the proper voltage level is present for powering the device. Once the current level is sensed, the device provides overcurrent protection, UVLO, and inrush current reduction. The soft-start feature ensures that the load is powered up gradually to prevent any potential disruption in the system. The device also features programmable current limit, allowing for precise current limiting for applications with varying load current requirements.

Conclusion

The ISL61851GIBZ-T is an ideal choice for hot-swap applications, such as in PCIe expansion cards. The device’s precise power-up sequencing, current limiting, and overcurrent protection make it well suited for use in a variety of systems. The device is available in both the surface-mount and dual die packages, allowing for easy integration into a wide range of systems.