MAX6802UR29D1/V+T

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Supervisors - PMIC

PMIC stands for Power Management Integrated Circuit, which is a semiconductor device specifically designed to efficiently manage voltage and power flow in a variety of applications. The MAX6802UR29D1/V+T Supervisors are PMIC components primarily used in systems that require intelligent power management and excellent transient load performance.

Application Field

The MAX6802UR29D1/V+T Supervisors provide supply voltage supervision and battery voltage monitoring for systems that require high density and reliability. With a voltage range of 2.4 V to 3.6 V, these Supervisors can be used for a variety of applications such as industrial, automotive, consumer and communications.

This component offers a wide selection of features that make it suitable for advanced systems. Firstly, it is able to detect and latch input undervoltages due to power supply disturbances. In the event of a transient inadequate supply voltage, the device will issue a reset signal to other components to indicate a low voltage condition, allowing the system to recover.

Secondly, its supply voltage monitor parameter can detect variation in power supply voltage as low as +- 5 mV. The system also has various reset and alert functionality, adjustable reset threshold, watchdog timer, voltage source switching and dual live channel options that make it an excellent choice for any system requiring intelligent control and monitoring of their power supply.

Working Principle

The MAX6802UR29D1/V+T Supervisors operate using the principle of monitoring a supply voltage. It is typically placed in-series with a voltage source and the device monitors the voltage of the supply line. If there is a voltage drop or variation from the specified threshold, then the Supervisor will activate its reset and alert functions.

To set the reset threshold for the Supervisor, an external resistor divider network is used to generate an adjustment voltage. This adjustment voltage is then inputted into the Supervisor to determine the reset threshold. Once the reset condition is met, the Supervisor will then trigger a reset signal in order to alert other devices that a power drop has occurred.

The Supervisor can also trigger an alert function halfway between reset and just below reset. This feature allows the device to provide a warning before a system becomes too unstable. This warning can be used by other devices to initiate any necessary corrective actions.

Conclusion

The MAX6802UR29D1/V+T Supervisors are PMIC components primarily used in systems that require intelligent power management and excellent transient load performance. This component provides a wide range of features, such as adjustable reset threshold, watchdog timer and dual live channel options to give systems intelligent control and monitoring over their power supply.

The Supervisor also utilizes a voltage source switch and external resistor divider network to set the reset threshold. This allows for an adjustable threshold to be set to accommodate different system requirements. In the event of a transient inadequate supply voltage, the device will issue a reset signal to other components to indicate a low voltage condition, allowing the system to recover.

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