XC6124F636ER-G

Power management integrated circuits (PMICs) serve an increasingly important role in modern power systems design, by regulating and managing power in electronics applications. Supervisors are one sub-category of PMICs specifically designed for the purpose of monitoring the power input, output, and controlling the supply rails.

The XC6124F636ER-G is an example of a supervisor PMIC which combines on-chip power-on reset (POR), supply voltage supervisor (SVS), under-voltage lockout (UVLO) and watchdog timer (WDT) functions within a single low-profile 5-pin SOT-25 package. This device can provide essential system monitoring, protection, and control capabilities for battery operated applications, such as mobile phones, tablets and wearables.

The XC6124F636ER-G’s POR function monitors the input voltage and signals the processor to boot up to ensure that reset does not occur during normal operation.

The SVS monitors the system’s power rail voltage to detect when it has dropped to a level that could cause device shutdown or malfunction. When this occurs, the SVS will generate a reset pulse. However, in contrast to the POR, this reset pulse is not required to power up the system.

The UVLO function inhibits output until the voltage on the system power rail has exceeded the set threshold. This ensures the device does not output too low a voltage which could critically damage the system.

The XC6124F636ER-G has a watch dog timer that allows hardware or software to periodically reset the device if it’s not functioning as intended. The WDT can be used to restart the processor and the application or to initiate the system to recover itself, ensuring reliable operation of the overall system.

The XC6124F636ER-G is an ideal supervisor PMIC choice for a broad range of applications requiring reliable power protection, monitoring, and control. For example, it is suitable for use in battery-operated device, and can ensure a stable system supply as the battery is depleted from a full charge to zero.