MIC6315-25D4UY-TR

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The MIC6315-25D4UY-TR is a multi-phase voltage supervisor from Microchip Technology Inc. It is a powerful yet cost-effective voltage supervisor for monitoring and protecting multiple voltage rails. A wide range of features and configurability options make the MIC6315 suitable for a wide range of application fields and end-products.

Application Fields

The MIC6315-25D4UY-TR is ideal for use in microprocessor and ASIC applications in mobile, computing and communications solutions. The MIC6315-25D4UY-TR offers a 3-phase voltage monitor capable of monitoring up to 4.052 volts without any external components. This allows designers to easily implement power supply monitoring and power-on reset functionality into their solutions. It is well suited for applications such as smartphones, tablets, notebooks, automotive, power supplies and industrial uses. Other features such as push button reset, programmable watchdog timer, over temperature and thermal management also make the MIC6315 suitable for applications such as factory automation, building automation, and industrial control systems.

Working Principle

The MIC6315-25D4UY-TR is a fully configurable voltage supervisor that monitors up to three voltage inputs. It provides hysteresis and programmable warning threshold voltage to detect illegal states in a system’s power supply rail. An external resistor divider is connected to the monitors to set the effective voltage level for each monitor voltage inputs. Once the monitored voltage exceeds the warning threshold, the MIC6315 can be configured to take corrective action by outputting an active-low RESET pulse or setting an SMBus alarm. Additionally, a programmable watchdog timer can be set to detect slow or stuck system operation conditions. If a voltage level remains above the warning threshold for longer than the watchdog timer period, an active-low RESET or SMBus alarm is generated to reset or stop the system.

The MIC6315’s Over Temperature protection features provides protection for systems with large thermal loads. The MIC6315 has an integrated temperature sensor that can detect when the system exceeds a predetermined temperature. Once the temperature reaches a critical threshold, the MIC6315 will output an active-low RESET pulse or SMBus alarm in order to protect the system from thermal damage.

The MIC6315-25D4UY-TR also provides configurable push button reset functionality. When the PB pin is triggered, an active-low RESET pulse is generated by the MIC6315. This allows the system to be reset manually without the need to reset the power supply voltage. In addition, the Push Button Reset pin can be used to hold the system in reset until the push button is released.

Conclusion

The MIC6315-25D4UY-TR is a powerful and cost-effective voltage supervisor for monitoring and protecting multiple power rails. It is suitable for applications such as microprocessors and ASICs, mobile and computing solutions, automotive, power supplies and industrial uses, factory automation, building automation, and industrial control systems. With a wide range of features and configurability options, the MIC6315 is easy to implement into any system design. It can monitor up to 3 voltage rails and provides programmable hysteresis, warning thresholds, and push button reset. It also has over temperature protection and programmable watchdog timer, allowing it to detect and alert system malfunctions.

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