MAX6721AUTTGD3+T

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The MAX6721AUTTGD3+T is a precision system/power supervisor implemented with a range of features that greatly enhances a company’s system reliability and performance. It is categorized as a PMIC (Power Management Integrated Circuit) device--specifically, a Supervisor IC. As a PMIC device, it provides power management and protection for a variety of systems and their components. Supervisors, in particular, provide up to five power supplies and multiple input/output options which allow greater flexibility in system design and power management.

The MAX6721AUTTGD3+T packs several features that offer advantageous monitoring, control and protection capabilities. The device has two input channels and two inputs per channel. It offers two adjustable reset thresholds and two reset outputs, general I/O, analog and digital outputs, clockless operation and a trim range of up to 4.8V. It also provides a 2.5V difference between the reset and voltage monitoring thresholds, as well as a -75mV VCCM hysteresis.

To accommodate varying application requirements, the MAX6721AUTTGD3+T can be adjusted to a wide range of voltages, from 2.5V to 6.3V, using external resistors. It offers a synthetic delay of either 5ms, 15ms, 30ms or 45ms, a 45ms power-on reset (POR) timeout duration, and a 4ms general purpose input/output (GPIO) timeout. In addition, the device has an adjustable reset output hold time from 8ms to 200ms, and a 12-bit GPIO register capability.

The MAX6721AUTTGD3+T provides a wide range of proficient functions:

• System Reset: The device can output a reset signal upon a low VCC input, with adjustable thresholds to allow for full protection upon brown-out conditions.
• Protections: This feature offers over voltage and under voltage protections; over current and short circuit protections; and hot-swapping protections.
• Temperature Monitoring: The device comes equipped with an integrated temperature sensor to monitor the temperature of the system, and can alert the system when the temperature threshold is crossed.
• Power Sequencing: This allows for proper power sequencing of multiple power supplies, and ensures that the power is supplied in the correct order.
• Watchdog: Offers a watchdog timer with adjustable timeout periods to monitor the system\'s activity.
• Combined Automotive Protection: The MAX6721AUTTGD3+T is designed with Electrostatic Discharge (ESD) protection as well as supply noise immunity.

The MAX6721AUTTGD3+T requires a stable Bias supply voltage of 1.8V and a logic supply voltage of 1.5V. It is capable of consuming up to 45 mA in a single 3 mm2 package, and can operate over an extended -40°C to 125°C temperature range. The device is equipped with a slew rate control for accurate control over Reset Pulse Width (RPW) for improved accuracy and dependability in power rails.

Measuring 68-bump microBGA (uBGA) with a dimensions of just 4.0mm x 5.0 mm x 0.9 mm, the MAX6721AUTTGD3+T is an impressive compact system/power supervisor ideal for any application involving power management and protection. Its variety of features and its industry-standard operational voltages makes it a robust and efficient choice for micro-power design.

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