MIC6315-40D2UY-TR

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The MIC6315-40D2UY-TR is a highly integrated programmable Supervisor multiprotection circuit that is able to protect against a variety of fault conditions including overvoltage, undervoltage, and over temperature. The device includes several features that make it suitable for a variety of application fields and it is especially suited for use in High Reliability and Quality applications where accurate and reliable fault detection must be guaranteed.

Application Fields

The MIC6315-40D2UY-TR can be used in a variety of applications from low power handhelds to industrial controllers and automotive systems. It is especially useful for applications requiring fault protection from a single supervisor circuit. The device features an integrated Dual Voltage Monitor (DVM) input for power system monitoring and is capable of providing protection for two voltage domains. It also features a temperature shutdown with hysteresis that can protect against thermal ramp-up and hot spots. It also includes high current fault protection that can handle short circuit events, such as in multimedia systems, and power cycling during power up.

Additionally, the supervision circuit also includes several diagnostic outputs that can be used for debugging and diagnosing potential faults. These diagnostic outputs include an open drain and push-pull active low fault signals that indicate a fault on the monitored voltages, and a power-on reset signal. These outputs are protected with a clamp diode.

Working Principle

The MIC6315-40D2UY-TR works by monitoring two voltage levels and providing protection against over voltage, under voltage, and over temperature conditions. It features two voltage monitors that are used to monitor two different voltage domains, or two different power rails. The two voltage monitors are unified into one integrated circuit package and feature three independent adjustable thresholds for each. These thresholds are programmable using two external resistors.

When the monitored voltage levels exceed the respective threshold, the device will initiate a fault detection and disable the power to the protected system. This feature is called “Power Fault Detection”, and is particularly powered by the internal regulator during a fault detection. It is also built with a circuit that delivers over current protection and all outputs are clamp protected to ensure maximum safety.

The MIC6315-40D2UY-TR also features a temperature warning, shutdown, and reset output for further preventing over-temperature conditions. Also, the reset pulse width is programmable using an external capacitor and exponentially decays with time. This allows the device to self-recover from a fault condition and maintain system stability.

Conclusion

The MIC6315-40D2UY-TR is an excellent tool to ensure quality and stability in a variety of application fields. It is highly integrated and offers powerful protection against a variety of fault conditions. Additionally, its excellent diagnostic outputs are ideal for debugging and diagnosing potential faults. For these reasons, the MIC6315-40D2UY-TR is an ideal choice for use in High Reliability and Quality applications.

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