MAX6392KA22+T

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The MAX6392KA22+T is a micropower voltage supervisor with two fixed output voltages, two threshold choices and two reset debouces. It is a device belonging to the PMIC - Supervisor category. MAX6392KA22+T offers a low power consumption solution for system voltage monitoring in battery powered applications.

Applications of MAX6392KA22+T include:

• Critical Voltage Monitoring in Battery-Powered Systems
• System ON/OFF Control
• Reset ON/OFF Control

The MAX6392KA22+T is available in the 3.3V version, and it has an operating temperature range from -40°C to +85°C. Its input voltage range is from +1.22V to +6.0V. The output voltage rail is varied typically between +1.22V and +6.0V, and there is also an adjustable voltage output on which the voltage can be varied from +1.01V to +6.0V. These two independent output voltages are controlled by two input pins (VP and VN) and two output pins (OUT1 and OUT2). The device has two programmable thresholds - a low threshold of ±50mV (with a hysteresis of ±10mV) and a high threshold of ±80mV (with a hysteresis of ±20mV). The MAX6392KA22+T also has two reset debounce time constants, which can be user-configured to either a short or long reset debounce of 100ms or 1s.

The working principle of the MAX6392KA22+T is based on a fine-resolution difference amplifier. The difference amplifier senses the input voltage at the VP and VN pins, and compares it with a pre-defined reference voltage. If either VP or VN is higher than the reference voltage (high threshold, ±80mV) for more than the pre-defined time duration, the differential amplifier turns off the respective output pins (OUT1 or OUT2). Once the VP or VN voltage falls below the low threshold voltage (±50mV) for more than the pre-defined time duration, the differential amplifier turns on the respective output pins.

The MAX6392KA22+T also has a power-on reset (POR) feature, which is enabled when the device is powered up. The POR is reset by an internal voltage source, which is held at the high threshold voltage (VH) until the input voltage VP rises above the VH and pulls the POR Reset output low.

In summary, the MAX6392KA22+T is a low power supervisor with two fixed output voltages, two threshold choices and two reset debouces. It offers a low power consumption solution for system voltage monitoring in battery powered applications, and is a viable solution for critical voltage monitoring and system ON/OFF control. Its working principle is based on the difference amplifier, and the POR feature provides protection against power surges.

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