MAX6749KA+T

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MAX6749KA+T

IC SUPERVISOR 1 CHANNEL SOT23-8

  • Nhà sản xuất
  • Ông. Phần #MAX6749KA+T
  • Gói SOT23-8
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  • Có sẵn5614

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Thông số kỹ thuật

Package Tape & Reel (TR),Cut Tape (CT)
ProductStatus Active
Type Simple Reset/Power-On Reset
NumberofVoltagesMonitored 1
Voltage-Threshold Adjustable/Selectable
Output Open Drain or Open Collector
Reset Active Low
ResetTimeout Adjustable/Selectable
OperatingTemperature -40°C ~ 125°C (TA)
MountingType Surface Mount
Package/Case SOT-23-8

Tổng quan

Description

The MAX6749KA+T is a part of the MAX6749 series, which consists of low-power, dual-voltage microprocessor (µP) supervisory circuits. These devices are designed to monitor two system power supply voltages, ensuring that they remain within a specified range. If the voltages fall outside this range, the MAX6749KA+T generates a reset signal to the microprocessor to avoid erroneous operations.
Key features of the MAX6749KA+T include a low supply current, typically around 3µA, making it suitable for battery-powered applications. It offers precision voltage monitoring and typically comes with fixed threshold levels, ensuring reliable performance. The device also integrates features like a manual reset input and an open-drain reset output.
Housed in a compact package, it's ideal for space-constrained applications. The MAX6749 series provides reliable system monitoring for dual-voltage setups, safeguarding against under-voltage conditions. It's widely used in embedded systems, consumer electronics, and industrial applications where robust power management is essential.

Features

The MAX6749KA+T is a microprocessor supervisory circuit that provides key features to ensure reliable operation of microprocessor-based systems. Key features include:
1. Reset Functionality: Offers a reset output to the microprocessor during power-up, power-down, or whenever the supply voltage falls below a specified threshold, ensuring proper startup and operation.
2. Voltage Monitoring: Monitors the voltage level of the power supply and triggers a reset if the voltage drops below the preset threshold.
3. Manual Reset Input: Includes a manual reset input that allows an external pushbutton or logic signal to initiate a reset.
4. Low Supply Current: Designed with low power consumption to enhance efficiency, making it suitable for battery-powered applications.
5. Precision Thresholds: Features precise voltage threshold levels to ensure accurate and reliable monitoring of supply voltage conditions.
6. Package and Temperature Range: Available in compact packages and designed to operate over a wide temperature range, making it versatile for various applications.
These features make the MAX6749KA+T ideal for use in applications where microprocessor reliability is critical, such as embedded systems, telecommunications, and consumer electronics.

Package

The MAX6749KA+T is a microprocessor supervisory IC from Maxim Integrated. It comes in a SOT-23 package, which is a small outline transistor package with 3 leads. This type of packaging is compact and suitable for surface mount technology, offering efficient performance for monitoring the supply voltage in microprocessor applications.

Pinout

The MAX6749KA+T is a microprocessor reset circuit from Maxim Integrated (now part of Analog Devices). It is a 4-pin device designed to monitor the power supply voltage in digital systems and provide a reset signal to the microprocessor during power-up, power-down, and brownout conditions to prevent code execution errors.
The four pins of the MAX6749KA+T are generally configured as follows:
1. GND: Ground connection pin.
2. VCC: Power supply pin, which is monitored for voltage thresholds.
3. RESET: Active-low reset output. This pin goes low when VCC falls below the reset threshold and remains low for a specified period after VCC exceeds the threshold again.
4. NC: No Connection or sometimes other functional pins depending on the specific package variant.
This device ensures that the system operates reliably by preventing the microprocessor from executing erroneous code during power fluctuations.

Manufacturer

The MAX6749KA+T is manufactured by Maxim Integrated, which is now a part of Analog Devices, Inc. Maxim Integrated specializes in designing and manufacturing analog and mixed-signal integrated circuits. The company provides a wide range of power management, interface, and signal processing solutions used in various applications, including consumer electronics, automotive, industrial, and healthcare. As of the acquisition by Analog Devices, Inc., Maxim Integrated's products and solutions are part of a larger portfolio offered by Analog Devices, a company known for its broad range of analog, digital, and mixed-signal processing solutions.

Application

The MAX6749KA+T is primarily used in applications requiring precise temperature monitoring and protection. It finds use in computer systems, telecommunications equipment, industrial instrumentation, and consumer electronics. Its main function is to safeguard against overheating by triggering alerts or shutdowns in response to high temperature thresholds, thus ensuring device safety and reliability.

Equivalent

The MAX6749KA+T is a voltage monitor and reset IC from Maxim Integrated. Equivalent products include:
1. Microchip's MCP130 series
2. Texas Instruments' TPS3808 series
3. Analog Devices' ADM6326 series
4. ON Semiconductor's NCP302 series
Ensure to compare the voltage threshold, reset timeout period, and package type when selecting an equivalent.

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