BU45K234G-TL Integrated Circuits (ICs)

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Power management integrated circuits (PMIC) are a type of integrated circuit that is primarily used for power management tasks. They are often used to regulate voltage, current, and other related functions. Supervisors are specialized PMICs that are used for monitoring the power supply in an application, and performing necessary operations when certain conditions arise. The BU45K234G-TL is a supervisor PMIC, designed for a wide variety of applications and uses. This article will provide an overview of the BU45K234G-TL and its application field, as well as its working principle.

BU45K234G-TL Application Field

The BU45K234G-TL is an accompanying supervisor IC for the RAA214G56 series of advanced power management controllers (PMC). It is designed to operate with an external control capacitor, allowing the PMIC to achieve tight regulation without degrading the system’s performance. The BU45K234G-TL is optimized for operation with a 5V to 25V DC power supply, and can interface with other DC/DC converters or PMCs as part of a PMU system. Additionally, it can be used with a 3.3V or 5V logic supply for additional control and monitoring. The BU45K234G-TL is ideal for applications such as server power systems, HDD power management, auto-power applications, server power supplies, and various other embedded devices. It can also be used in industrial control systems, video surveillance systems, and telecommunication devices.

BU45K234G-TL Working Principle

The BU45K234G-TL is a voltage monitor-supervisor device designed to provide overvoltage/undervoltage/overcurrent protection and detection. The BU45K234G-TL’s primary function is to monitor the system-level DC power supply and provide an alarm signal when the input voltage falls below or exceeds a pre-defined threshold. The device also monitors and detects overcurrent conditions, and will generate an alarm signal when it detects a preset current level defined by the external current source. The monitoring and detection is enabled through the use of an external voltage divider and current sense resistor, respectively. Upon detection of an overvoltage, undervoltage, or overcurrent condition, the BU45K234G-TL will immediately generate an alarm signal, allowing the system to switch to a safe state.

In addition, the BU45K234G-TL features an integrated auto-shutdown circuit, which when activated will continuously monitor the input voltage and power-supply measurement. If the measured value exceeds a specified upper or lower limit, the auto-shutdown circuit will immediately shut down the power supply, preventing any further system operation until the issue has been resolved. By integrating the overvoltage/undervoltage/overcurrent protection and auto-shutdown functions into the same device, the BU45K234G-TL is able to provide superior power-system protection and improved system reliability.

Conclusion

The BU45K234G-TL is an advanced supervisor PMIC, designed for a wide variety of applications. It is optimized for operation with a 5V to 25V DC power supply, and can interface with other DC/DC converters or PMCs as part of a PMU system. The BU45K234G-TL features overvoltage/undervoltage/overcurrent protection and auto-shutdown functions, allowing it to provide superior power-system protection and improved system reliability. As such, it is ideally suited for server power systems, HDD power management, auto-power applications, server power supplies, embedded devices, and many other types of applications.

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