ISL61851CCBZ

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ISL61851CCBZ Application Field and Working Principle

ISL61851CCBZ is an integrated circuit designed specifically for hot-swap applications. It is a Power Management Integrated Circuit (PMIC) that is used to provide protection and management of hot-swap system components while they are being hot-swapped, providing protection against current, voltage and temperature. The ISL61851CCBZ is typically used in system designs where a node (server, storage, switch, etc.) is hot-swapped in or out of the system.

The ISL61851CCBZ provides a complete solution for hot-swap applications, including a voltage supervisor and load current monitor, a hot-swap control logic and time delays, a full bridge controller with passive drivers, a bidirectional overvoltage protection circuit, a one-shot full bridge driver and two independent temperature sensor inputs. All of these components work together to provide protection against overcurrent, overvoltage, undervoltage and overtemperature conditions.

Working Principle

The ISL61851CCBZ is designed to work as a hot-swap controller. When the system is being hot-swapped in, the voltage supervisor and load current monitor detect the presence of power and indicate that the device is ready for hot-swapping. The hot-swap control logic and time delays then activate the bidirectional overvoltage protection circuit, allowing safe hot-swapping of the node. Once the node is hot-swapped in, the full bridge controller with passive drivers is used to enable and control the power supplied to the node.

The ISL61851CCBZ also provides overcurrent protection by monitoring the current flow to the node and automatically shutting off the power if the current exceeds a safe level. It also provides overvoltage and undervoltage protection, as well as overtemperature protection. The overtemperature protection is provided by the one-shot full bridge driver and two independent temperature sensor inputs. By monitoring the temperature of the node and automatically shutting off the power if the temperature exceeds a safe level, the ISL61851CCBZ provides an extra layer of protection.

Applications

The ISL61851CCBZ is designed for use in hot-swap applications. It is commonly used in servers, storage, switches and other systems where hot-swapping is necessary. It can also be used in automotive and industrial applications, where hot-swapping components is necessary for repair or maintenance.

The ISL61851CCBZ provides a safe and reliable way to hot-swap components into and out of a system. By providing protection against overcurrent, overvoltage, undervoltage and overtemperature conditions, it helps prevent damage to the system and its components. This makes it an essential component in any system that relies on hot-swapping components.

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