MAX837EUS+T

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MAX837EUS+T

IC SUPERVISOR 1 CHANNEL SOT143-4

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規格

Part Status Active
DigiKey Programmable Not Verified
Type Simple Reset/Power-On Reset
Number of Voltages Monitored 1
Voltage - Threshold Adjustable/Selectable
Output Push-Pull, Totem Pole
Reset Active Low
Reset Timeout 80µs Typical Propagation Delay
Operating Temperature -40°C ~ 85°C (TA)
Mounting Type Surface Mount
Package / Case TO-253-4, TO-253AA
Supplier Device Package SOT-143-4
Base Product Number MAX837

概述

Description

The MAX837EUS+T is a voltage supervisor and reset IC from Maxim Integrated (now part of Analog Devices). It is designed to monitor power supply voltages and ensure proper reset signals for microcontrollers and other digital systems during power-up, power-down, and brown-out conditions.
Key features include a wide supply voltage range (2.5V to 6V), adjustable reset threshold voltages, and a fast response time to voltage changes. The device is available in a compact SOT-23 package, making it suitable for space-constrained applications.
It typically provides a reset output signal that remains low until the monitored voltage exceeds the threshold, ensuring that digital circuits are not activated prematurely. This IC is essential in ensuring system reliability and preventing erratic behavior in embedded applications such as consumer electronics, automotive systems, and industrial controls.
In summary, the MAX837EUS+T is a reliable solution for voltage monitoring and reset management in a variety of electronic devices.

Features

The MAX837EUS+T is a precision voltage supervisor designed to monitor supply voltages in a variety of electronic applications. Key features include:
1. Voltage Monitoring: It offers multiple threshold options for various supply voltages (typically adjustable from 1.5V to 5.0V).
2. Low Power Consumption: Designed for low quiescent current, making it suitable for battery-powered devices.
3. Open-Drain Output: Provides an active-low reset output, facilitating easy integration with microcontrollers and other logic devices.
4. Fast Response Time: Quick response to voltage variations, ensuring reliable operation in critical applications.
5. Temperature Range: Operates in a wide temperature range, typically from -40°C to +125°C.
6. Compact Package: Available in a small SOT-23 package, advantageous for space-constrained designs.
7. Hysteresis: Integrated voltage hysteresis helps prevent false triggering due to voltage fluctuations.
Overall, the MAX837EUS+T is ideal for systems requiring reliable voltage supervision and minimal power consumption.

Package

The MAX837EUS+T is packaged in a 5-pin SOT23 package.

Pinout

The MAX837EUS+T is a voltage supervisor IC with a pin count of 8. Its primary functions include monitoring supply voltages and providing reset signals to microcontrollers and other digital devices.
The pin configuration and functions are as follows:
1. VCC - Power supply input.
2. GND - Ground connection.
3. RESET - Active-low reset output; goes low when the supply voltage drops below the threshold.
4. RESET - Active-high reset output (if specified).
5. SENSE - Voltage sense pin to monitor the supply voltage.
6. THRESHOLD - Adjustable voltage threshold setting, if applicable.
7. TEST - Test pin for factory use (often left unconnected in applications).
8. NC - No connection; not used.
The MAX837EUS+T features fast reset response times and low quiescent current, making it suitable for battery-powered devices.

Manufacturer

The MAX837EUS+T is manufactured by Maxim Integrated, which is now part of Analog Devices, Inc. Maxim Integrated is a semiconductor company that specializes in designing and producing analog and mixed-signal integrated circuits (ICs). The company focuses on various markets, including automotive, communications, consumer electronics, and industrial applications. They are known for their innovative solutions in power management, data converters, amplifiers, and sensors, among other products. In 2021, Maxim Integrated was acquired by Analog Devices, further expanding the latter's portfolio in the analog and mixed-signal domain.

Application

The MAX837EUS+T is a supervisory circuit primarily used for microprocessor monitoring. Its application areas include power supply monitoring, battery backup systems, and reset generation. It's commonly employed in consumer electronics, automotive systems, embedded systems, and industrial control devices to ensure reliable startup, safe shutdown, and protection against under-voltage conditions.

Equivalent

The MAX837EUS+T is a voltage supervisor chip. Equivalent products include the MCP100, LTC6700, and TPS3808. Always check specific parameters such as voltage thresholds, reset time, and package type to ensure compatibility.

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