MAX6724AUTTGD3+T

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The MAX6724AUTTGD3+T, commonly referred to as the MAX6724, is a highly efficient, power management integrated circuit (PMIC) regulator specifically designed for modern electronic devices and systems that require high precision power management. In particular, the MAX6724 is ideal for applications requiring precision, cost-effective and reliable supervision of system power.

The MAX6724 is a single-channel, voltage monitoring and robust supervisor IC that comes in a 6-pin, 0.8 mm pitch, space-saving WLP. This PMIC supervisor provides improved input/output isolation compared to traditional two-terminal-only supervisors, and also provides improved long-term stability and accuracy over temperature, improving system reliability.

Application Fields

The MAX6724 is widely used in various industries such as medical and industrial instrumentation, industrial control, automotive, computer and communications systems.

The MAX6724 is widely used in medical applications, such as ECG monitors, ventilators, and heart rate monitors. It is often used as a voltage monitor to detect voltage drops in the system, preventing system failure and keeping the equipment running safely.

Industrial instrumentation is one of the most common application fields for the MAX6724. It is primarily used for accuracy in the data acquisition process — whether it is pressure, temperature, or flow — and in voltage communication systems, such as analog-digital converters, to ensure the voltage level is at its optimal operating level.

The MAX6724 is also a popular choice in industrial control and automotive applications. It is often used as a safety device to detect and maintain the correct voltage levels in automotive systems and control systems.

In the computer and communications industries, the MAX6724 is used to maintain precision voltage levels in communication systems, such as Ethernet and USB. It is also used to monitor the power output of power adapters, such as the popular 5V USB ‘wall warts’, to ensure the voltage level is always within the safe operating range.

Working Principle

The MAX6724 is a voltage supervisor IC with a built-in voltage monitor and a robust output driver. It monitors the input voltage and has an open-drain output driver that is hardwired to the ground (GND) pin. This voltage monitor IC also features an optional reset footer that can be used to reset the output when the input voltage is out of range.

The MAX6724 uses a comparator circuit to constantly monitor the input voltage level and detect if it exceeds the nominal threshold values (typically 2.6V, 2.8V and 3.2V). The MAX6724 is designed with hysteresis, which ensures that the on/off threshold voltage is not the same, but differentiated (± some hysteresis voltage) voltage. When the input voltage is above the on threshold of 2.6V, the output (open drain) is signaled low. If the input voltage drops below the off threshold of 2.8V, the output (open drain) goes high. The output of this voltage supervisor IC pulls the voltage on the reset/control pin to GND, resetting the system.

The MAX6724 has two options available to the user, namely manual reset and auto reset. In the manual reset mode, the users can reset the IC manually via the reset/control pin by pulling this pin low. The auto reset mode operates similar to the manual reset mode, except that the output (open drain) goes high once the input voltage goes back to the valid operating range. This mode is commonly used in safety-critical applications.

Conclusion

The MIN6724 is a power management integrated circuit (PMIC) regulator specifically designed for modern electronic devices and systems that require high precision power management. It is ideal for applications requiring precision, cost-effective and reliable supervision of system power. It is widely used in the medical, industrial, automotive, computer and communications fields. The MAX6724 is based on a comparator circuit to monitor the input voltage and provides two reset modes, manual and auto.

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