ISL61862BIRZ-T

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ISL61862BIRZ-T Application Field and Working Principle

PMIC - Hot Swap Controllers are used to control the power systems of high power draw devices intelligently. The ISL61862BIRZ-T Hot Swap Controller is an intelligent low side MOSFET controller used for power management in Hot Swap applications. ISL61862BIRZ-T Hot Swap Controllers are specifically designed for protection and Hot Swap control. This article discusses the application scenarios and working principle of the ISL61862BIRZ-T Hot Swap Controller.

ISL61862BIRZ-T Application Field

The ISL61862BIRZ-T Hot Swap Controller is specially designed for applications such as telecommunications equipment, servers, storage systems and other systems where reliable and efficient power management is critical. Its features and flexibility make it ideal for power supply design, rack and blade management, as well as distributed power supply architectures. It can optimize power management with real-time detection of the power supply in order to ensure reliable operation and adequate protection of the system from overcurrent, overtemperature and other faults.

The device has built-in protection functions such as overtemperature protection and direct Over Current (DOC) protection. The device also has programmable parameters to accommodate various application requirements, such as power-on delay, fault handling, current limit and dead time. With Hot Swap feature and timer controlled load sharing, the power supply can be easily managed while maintaining system stability.

ISL61862BIRZ-T Working Principle

The ISL61862BIRZ-T Hot Swap Controller detects the presence of the input supply voltage, allowing the output voltage to be monitored while maintaining the safe turn-on process. The device turns on the MOSFET when the output voltage reaches the set value. When the output voltage is within the set range, the MOSFET is enabled to prevent overcurrent and overvoltage conditions.

The ISL61862BIRZ-T Hot Swap controller also has an over-current threshold (DOC) which is constantly monitored. If the current draw exceeds this threshold, the MOSFET is immediately disabled and the output voltage is brought down to safe levels. The delay time for re-enabling is programmable, allowing for proper fault detection, handling and recovery. The device also has an overtemperature threshold that is monitored to ensure that the temperature is within the safe range.

The ISL61862BIRZ-T Hot Swap controller also has a thermal shutdown feature to prevent damage to the device due to overheating. It also features load sharing through a timer controlled contact-closure output, allowing for equalization of load between two supplies. This feature provides power supply redundancy and system reliability.

Conclusion

The ISL61862BIRZ-T Hot Swap Controller is an ideal device for reliable and safe power supply and power management applications, such as telecommunications equipment, servers and storage systems. The device provides comprehensive protection features such as DOC, overtemperature and overtemperature protection, and offers programmable parameters for fault handling and power management. Through the load sharing features and timer controlled contact-closure output, the device can provide power redundancy and system reliability.

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