MAX16001ETE+

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MAX16001ETE+ is a high-performance supply voltage supervisory device. It is suitable for applications with multiple power supplies such as microcomputers and digital signal processors. Its low current consumption and wide operating voltage range make it ideal for low-power applications. The MAX16001ETE+ is available in a small 8-pin package which makes it suitable for use in space-constrained designs.

The MAX16001ETE+ permits the user to accurately monitor up to three different supply voltages of lower magnitude. This can be useful for signaling faults, allowing a system to shut down safely and protect against incorrect voltage levels. The device can also be used to indicate when a circuit or power supply has failed when used in conjunction with a watchdog timer.

The MAX16001ETE+ operates by comparing each supply voltage to its internal threshold voltage, which is typically set to 5V. If a supply is below the threshold, the failure indicator is pulled to the low level and a power-fail interrupt is asserted. This failure indicator can be used to indicate a device fault or to enable various safety functions, such as power-on reset, power-fail reset and safe shutdown.

The MAX16001ETE+ application field can range from home and office entertainment electronics, providing a reliable supply voltage monitoring and protection system to consumer electronics, automotive applications and battery-powered portable products. Therefore, manufactures may take advantage of the device’s high accuracy and low current consumption in their systems.

The device works by monitoring the instantaneous value of each of its three supply voltages. If any one of the voltages drops below the user-designated threshold, the device will pull its output to a low logic level. The failure indicator output pulled low indicates that the supply voltage is below the user-designated threshold, and the device can assert an interrupt or provide a reset to the system.

For the three voltage detect inputs (V1, V2, V3), the threshold level is user-settable by a single external resistor, allowing the user to adjust the trip point of each voltage. The MAX16001ETE+ also incorporates an independent power-fail detect (POK) input, which can be used to detect an externally monitored power supply. When POK is pulled below the user-defined threshold voltage, the device will pull its failure indicator (FAIL) output low.

The output of the MAX16001ETE+ is configured to provide an interrupt for microcontrollers and a reset for other ICs. It is also capable of being configured to reject power supply noise transients up to 75mV peak-to-peak. The device has three independent inputs, each with its own threshold voltage, enabling different levels of voltage detections to be monitored.

The MAX16001ETE+ is a versatile power monitoring IC available in a small 8-lead package. Its low current consumption, wide operating voltage range and user-adjustable threshold voltages make it ideal for applications with multiple power supplies. Its failure indicator output and independent power-fail detect input allows the device to be used to monitor power supply faults and ensure system operational integrity.

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