MAX6372KA+T

Series:	--
Packaging:	Tape & Reel (TR)
Part Status:	Active
Type:	Watchdog Circuit
Number of Voltages Monitored:	1
Output:	Push-Pull, Totem Pole
Reset:	Active Low
Reset Timeout:	Adjustable/Selectable
Voltage - Threshold:	Adjustable/Selectable
Operating Temperature:	-40°C ~ 125°C (TA)
Mounting Type:	Surface Mount
Package / Case:	SOT-23-8
Supplier Device Package:	SOT-23-8
Base Part Number:	MAX6372

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Introduction

MAX6372KA+T is an integrated supervising device, which is typically used in portable electronic devices, such as PMIC-Supervisors and LDO voltage regulators. This device provides advantages of protection, temperature, and performance monitoring. The main components of the device include an integrated circuit (IC). This integrated circuit is a combination of two main components: an on-chip voltage monitor and an off-chip Programmable Watchdog Timer (WDT). The device also has an easy-to-use, two-pin, Thermal Shutdown feature that protects ICs from over-temperature conditions. These components, along with a few others, all work together to create a powerful, effectively supervising device.

MAX6372KA+T Application Field

The main applications of MAX6372KA+T are within PMIC-Supervisors, where it is used to protect electronic components from over-voltage conditions, stalled or stopped microprocessors (CPUs) and to monitor temperature levels. As a part of this application field, MAX6372KA+T also provides a second on-chip Voltage Monitor which will detect both under-voltage and over-voltage conditions. Other applications for this device include the LDO voltage regulators, where it will be used to monitor voltage performance and regulate supply voltage, as well as battery management systems.

MAX6372KA+T Working Principle

The working principle of MAX6372KA+T can be best summarised by looking at the integrated circuit\'s two main components, the on-chip voltage monitor, and the off-chip Programmable Watchdog Timer (WDT). The on-chip voltage monitor is used to protect against over-voltage and under-voltage conditions, by monitoring the output voltage at all times. The monitor can be programmed to trigger an interrupt when it detects either an under-voltage or over-voltage condition. The off-chip Programmable Watchdog Timer (WDT) is used to protect against stalled or stopped microprocessors (CPUs). This component is a simple timer that counts down from a preset value, then triggers an interrupt when the timer reaches 0.The device also has a temperature threshold functionality that provides an alert if the temperature of the device or component reaches a pre-set critical level. This feature is powered through the on-chip Thermal Shut Down feature, which can be easily enabled by connecting a pull-up resistor to the device’s Thermal Shutdown Pin.Lastly, the device can provide accurate output voltage readings with its built-in Voltage Measurement A/D Converter (VMA/D). This feature can be used to monitor the actual output voltage value of the device, with resolutions up to 28 bits. In conclusion, MAX6372KA+T is a powerful and effective monitoring device that provides protection, temperature, and performance monitoring for PMIC-Supervisors, LDO voltage regulators and other applications. Its two main components, the on-chip voltage monitor, and off-chip Programmable Watchdog Timer (WDT) work together to ensure that the device is effectively monitoring and protecting against over-voltage and under-voltage situations. It also has a Thermal Shutdown feature that provides an alert when the temperature of the device or component reaches a critical level. The Voltage Measurement A/D Converter (VMA/D) also helps provide accurate output voltage readings.

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