CHL8325B-00CRT

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CHL8325B-00CRT Application Field and Working Principle

The CHL8325B-00CRT is a single-phase, three-terminal hot-swap voltage regulator designed for quick, efficient, and safe power-up and power-down of systems. This product offers integrated current-limiting and voltage-regulation capability in a single device. With its built-in current limit, transient-voltage protection and over-temperature shutdown, the CHL8325B-00CRT is well suited for server, storage and networking applications.

Application Field

The CHL8325B-00CRT is a voltage regulator optimized for hot-swap or power-down applications in enterprise-class networks, such as switch boards, routers, storage systems. This device offers load current protection, load current-foldback protection, undervoltage protection, and over-voltage protection. The maximum output current is 2A, and the output voltage range is adjustable from 0.8V to 2.5V.

The CHL8325B-00CRT can provide up to 99% efficiency under various load conditions, which is high enough to prevent the inefficient consumption of electricity and eliminate the need for active cooling solutions. The device can operate over an extended temperature range of -40°C to +105°C, making it suitable for high-reliability systems used in industrial, automotive and datacom applications.

Working Principle

The CHL8325B-00CRT is a hysteretic regulator, which means it keeps the output voltage stable at a constant setpoint despite fluctuations in voltage or temperature. It achieves this by comparing the input voltage to a setpoint, and when the input voltage drops below the setpoint, the regulator switches on and begins regulating the output voltage. When the input voltage reaches the setpoint, the regulator switches off and stops regulating the output voltage. This process is repeated continually as the input voltage fluctuates, thus maintaining a stable output voltage.

The CHL8325B-00CRT can also be used to limit inrush current during power-up, preventing voltage spikes that could overstress the system. During a hot-swap event, the regulator will reduce the inrush current of up to 10A, protecting the system from overload and ensuring safe power-up and power-down of the system.

The CHL8325B-00CRT also provides current-foldback protection, which reduces the output current when the voltage drops. This prevents overload and damage to the system.

Conclusion

The CHL8325B-00CRT is a single-phase, three-terminal voltage regulator designed for hot-swap or power-down applications in enterprise-class networks, such as switch boards, routers and storage systems. With its built-in current limit, transient-voltage protection and over-temperature shutdown, it is well suited for high-reliability systems used in industrial, automotive and datacom applications. The CHL8325B-00CRT also offers current-foldback protection, which reduces the output current when the voltage drops, preventing overload and damage to the system.

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