XC6122D333MR-G

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The XC6122D333MR-G series is an ultra-precise voltage monitor from its manufacturer, Toshiba. It is a pin compatible, ultra-small 3.2mm × 3.2mm package device specifically designed for providing long battery life and high accuracy in lots of applications, such as DC-DC converters, voltage supervisor, and so on.

This device offers a variety of features, such as low supply current, low voltage monitor threshold voltage, two independent inputs for under voltage detection, manual reset input, and long hysteresis voltage. As one of the Premium Power Interface Modules (PMIC) designed by Toshiba, it is specifically designed to provide rapid switching and accurate voltage monitoring to support a wide range of applications.

Application Field

The XC6122D333MR-G device, as a voltage supervisor, targets voltage monitoring and management in low power applications. It monitors the voltage of a circuit and output signal to indicate if this voltage is beyond a certain range. This signal can be used by the system to adjust operating parameters, such as processor frequency or temperature ranges to ensure safe operation, thereby improving system reliability.

Also, because of the low power consumption and small size of the XC6122D333MR-G, it can also be used for power monitoring in battery-operated systems, including mobile phones, PDAs, or remote sensors. It has been proven effective in reducing power consumption and improving battery life in these systems.

Working Principle

The XC6122D333MR-G uses an internal voltage-detecting circuit to measure the voltage of a target circuit and output a signal when the voltage of this circuit is beyond certain limits. The upper and lower voltage limits can be adjusted by changing external resistors connected to the device.

When the voltage of the target circuit is between the lower and upper limits, the XC6122D333MR-G operates in Sleep Mode, which requires only very little current. Once the voltage reaches beyond the lower or upper limits, the internal circuits will be activated and the comparator will output a logic high or low signal accordingly. This signal can then be used for various applications.

The hysteresis voltage is set by an internal resistor and can be adjusted by changing the external resistor connected to the device. The range of the hysteresis voltage can be adjusted so that if the voltage drops beyond certain limits and then returns, the output signal will stay at logic high or low and the device won’t come back to Sleep Mode.

The XC6122D333MR-G also feature a manual reset input that can be used to force the device to go back to Sleep Mode. This can be used to manually reset the system or to clear spurious signals in a noisy environment. This feature can also be used to reduce power consumption in applications where the output signal needs to stay at logic high or low for long periods of time.

Conclusion

The XC6122D333MR-G is a small, low-power voltage supervisor designed to accurately monitor system voltages. It can be used in a variety of applications, including DC-DC converters, voltage supervisors, and power monitoring in battery-operated systems. It features low power consumption, two monitoring inputs, adjustable hysteresis voltage and manual reset inputs, making it suitable for providing long battery life and high accuracy in lots of applications.

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