XC6123E739MR-G

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PMIC – Supervisors are an important category of devices in the Power Management Integrated Circuit (PMIC) family, which includes voltage level supervision circuits, power-on reset (POR) circuits, and watchdog timer (WDT) circuits. These devices are programmed to detect and monitor the power supply voltage level, provide a reset signal when the voltage drops below a preset level, maintain a stable reference voltage for monitoring, and control system clock and other peripheral management functions. The XC6123E739MR-G is a member of this family, providing a reliable and cost-effective voltage supervisor solution for advanced power management designs.

The XC6123E739MR-G has a wide capacitance range, up to ±200PF, making it suitable for various applications. It features a 2.6V fixed supervised voltage threshold, a 0.8V range, and can be selected between the active-low or active-high reset signal. Furthermore, this device has a pin associated current consumption of 0.08uA or 0.48uA depending on the operating mode, and a built-in 1ms watchdog timer (WDT). By providing POR (Power-on Reset) and WDT (Watchdog Timer) functionality, the XC6123E739MR-G guarantees reliable system protection and effective system monitoring.

The XC6123E739MR-G is suitable for many applications. Some of the most common uses include resetting, controlling and protecting LCD displays, providing start-up protection for personal computers and portable electronic devices, monitoring power-play in automotive systems, and controlling system clocks in consumer electronics. It is ideal for battery powered portable consumer applications as its low power operation eliminates noticeable power consumption.

The XC6123E739MR-G operates according to the principle of open-drain logic. When the supply voltage drops below the set threshold voltage (Vth), the device will output a high impedance state (open-drain), indicating that a reset must occur. The input can be assigned as either active-low or active-high, offering flexibility and user convenience. The device’s WDT is activated when the supply voltage rises to a higher-than-set voltage (Vth + Vwdt). The WDT will then reset the system if the supply voltage does not return to the set threshold voltage within a certain amount of time.

In addition, the XC6123E739MR-G features a dual edge detection debounce circuit that helps to reduce any contamination on the supply voltage. This circuit monitors the change of the voltage around Vth and can detect slow edges or transient voltage glitches. It also supports manual reset and manual discharge functions, allowing the user to manually reset the supervised circuit or discharge its output.

In summary, the XC6123E739MR-G is a reliable and cost-effective voltage supervisor device, offering a wide range of features that ensure proper system protection and reliable system monitoring. It supports a wide operating temperature range and a wide capacitance range, and its low-power operation makes it ideal for battery powered portable consumer applications. The built-in dual edge detection debounce circuit and manual reset and discharge functions make it well suited for a variety of applications.

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