XC6108C17DGR-G

PMIC - Supervisors -- XC6108C17DGR-G Application Field and Working Principle

The XC6108C17DGR-G is a highly efficient, ultra-low quiescent current (QC) supervisor designed by Exar Corporation. This PMIC supervisor is designed to provide circuit monitoring, reset and power sequencing functions over a wide range of input voltages. It monitors system voltages and triggers a reset output if any of the monitored voltages drops below a specified threshold.

This device utilizes an advanced power-on reset (POR) mechanism with an internal voltage sensing circuit and delay timer. It supports various input voltages between 1.4 V to 5.5V, allowing for a wide range of operating conditions. The XC6108C17DGR-G also features an adjustable watch-dog timer and manual reset function by triggering the OTP input pin. The supervisory watch-dog timer (WDT) can be used to monitor internal state changes over predetermined time-outs.

The XC6108C17DGR-G is well suited for IoT, automotive, and consumer electronics applications. Its efficient design allows almost zero current consumption while the device is in its operating state, enabling optimized system performance and maximum battery life in battery powered operations. Furthermore, it ensures smooth system power-on and power-down loop. It can also be used for system initialization and pre-charge functions. Additionally, the XC6108C17DGR offers an input voltage sensing pin for reset sequencing, watchdog timer and manual reset.

Working Principle

The XC6108C17DGR-G is based on an incredibly precise voltage sensing circuit and delay timer. Its internal voltage sensing circuit evaluates the supply voltage of thesystem and determines if this voltage is above the specified threshold or lower. In the case of power failure, the voltage drops below the specified voltage threshold and triggers a reset. The delay timer is used to set the expected time-out for the reset to activate. In case the voltage overshoots the set threshold, it will only activate the reset after the configured time-out is exceeded.

The XC6108C17DGR-G also features a manual reset and watch-dog timer. The manual reset can be triggered manually by applying a low voltage to the OTP input pin. It is used for system initialization and for resetting the system forcibly in case of an unexpected system error. The WDT ensures that the monitored data does not change over a predetermined period of time. If the monitored data is changed during that period it triggers a reset.

Applications

The XC6108C17DGR-G is mainly used in applications that require the monitoring of system voltages and resetting of these voltages if they drop below a certain threshold. It is ideal for IoT devices such as sensors, smart meters and appliances as well as automotive electronics and consumer electronics. Additionally, it can be used for power sequencing and pre-charge functions.

The ultra-low quiescent current of the XC6108C17DGR-G enables optimized system performance and maximum battery life in battery powered operations. It also ensures that the system is de-powered and reset when required, providing improved system reliability. Furthermore, its adjustable watch-dog timer ensures that the monitored data does not change over predetermined periods of time.

Conclusion

The XC6108C17DGR-G from Exar Corporation is highly efficient and ultra-low quiescent current PMIC-supervisor with various input voltage levels, adjustable watch-dog timer and manual reset function. It is an excellent choice for monitoring system voltages and resetting them if they drop below a specified threshold, as well as for powering sequencing and pre-charge functions. Additionally, its efficient design ensures maximum battery life in battery powered operations. It is mainly used in IoT, automotive and consumer electronics applications.