MAX6444US29L+T

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MAX6444US29L+T

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IC SUPERVISOR 1 CHANNEL SOT143-4

  • Nhà sản xuấtAnalog Devices Inc./Maxim tích hợp

  • Ông. Phần #MAX6444US29L+T

  • Có sẵn8436

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Thông số kỹ thuật

thuộc tính Giá trị
Part Status Active
Digi Key Programmable Not Verified
Type Simple Reset/Power-On Reset
Number of Voltages Monitored 1
Voltage - Threshold 2.925V
Output Open Drain or Open Collector
Reset Active Low
Reset Timeout 140ms Minimum
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 MAX6444

Tổng quan

Description

The MAX6444US29L+T is a part of the MAX6443–MAX6452 series, designed by Maxim Integrated (now part of Analog Devices) for microprocessor supervisory applications. This specific component features a fixed 2.9V threshold voltage, making it suitable for monitoring 2.9V power supplies. The device includes a push-pull active-low reset output, which remains asserted when the monitored voltage is below the threshold, ensuring a stable reset signal for the microprocessor or microcontroller.
Key features of the MAX6444US29L+T include low supply current (typically 5µA), precision monitoring with a ±1.5% reset threshold accuracy, and a wide operating temperature range suitable for various environmental conditions. The reset output is available in various versions, including open-drain and push-pull configurations. The component is housed in a compact SOT-23 package, providing ease of integration into space-constrained designs.
Overall, the MAX6444US29L+T is ideal for applications requiring reliable voltage monitoring and reset capabilities, such as embedded systems, portable devices, and other electronics that demand robust power supervision.

Equivalent

The MAX6444US29L+T is a voltage supervisor with a fixed reset threshold. Equivalent products include:
1. TPS3808G29 from Texas Instruments
2. MCP130T-29 from Microchip
3. ADM6326-29 from Analog Devices
These products perform similar functions by monitoring voltage levels and providing a reset signal when thresholds are crossed. Always check the datasheets to ensure compatibility in terms of parameters like voltage threshold, reset delay, and package type.

Features

The MAX6444US29L+T is a microprocessor supervisory circuit designed to monitor the power supply voltage in electronic systems. Key features include:
1. Voltage Monitoring: It provides precision monitoring for a 2.9V threshold, ensuring the system operates within specified voltage levels.
2. Low Quiescent Current: The device operates with minimal power consumption, making it suitable for battery-powered applications.
3. Reset Output: It includes a reset output that is asserted when the monitored voltage falls below the threshold, helping to prevent processor errors during power-up, power-down, or brownout conditions.
4. Manual Reset Input: Offers a manual reset capability, allowing external control over the reset function.
5. Small Package: Available in a compact SOT-23 package, which is ideal for space-constrained designs.
6. Temperature Range: Operates effectively over a wide temperature range, accommodating various environmental conditions.
This combination of features makes the MAX6444US29L+T a reliable choice for safeguarding microprocessor functionality in diverse electronic applications.

Pinout

The MAX6444US29L+T is a microprocessor supervisory circuit. It typically comes in a SOT-23 package, which is a small-outline package with 3 to 6 pins. The exact pin count for this specific model is 5 pins.
The primary function of the MAX6444US29L+T is to monitor the power supply voltage of microprocessor systems. It generates a reset signal to the microprocessor whenever the monitored voltage drops below a preset threshold, which in this case is 2.93V. This reset helps ensure that the microprocessor operates correctly during power-up, power-down, and brownout conditions.
The pins generally include:
1. VCC: Power supply input.
2. GND: Ground.
3. RESET: Reset output signal, which is active during low voltage conditions.
4. Manual Reset Input: Allows manual triggering of the reset.
5. Other Functional Pin: Could be used for additional functionality like a watchdog timer or another output.
For precise pin configurations and functionalities, consulting the manufacturer's datasheet is recommended.

Manufacturer

The MAX6444US29L+T is manufactured by Maxim Integrated, which is now part of Analog Devices, Inc. This company is a prominent player in the semiconductor industry, specializing in the design and manufacture of analog and mixed-signal integrated circuits. Analog Devices provides solutions for a wide range of applications, including industrial, automotive, communications, healthcare, and consumer electronics. The company's products are essential in converting real-world phenomena like temperature, light, sound, motion, and pressure into electrical signals that can be processed, analyzed, and utilized in various electronic devices and systems.

Application

The MAX6444US29L+T is a microprocessor supervisory circuit designed for monitoring the power supply in microprocessor and digital systems. Its primary application areas include:
1. Computing and Servers: Ensuring reliable operation by monitoring supply voltage and generating reset signals during power fluctuations.
2. Consumer Electronics: Enhancing the stability and reliability of devices like smart TVs, gaming consoles, and set-top boxes.
3. Industrial Control Systems: Providing robust power supervision in PLCs and other industrial equipment.
4. Networking Equipment: Maintaining system stability in routers, switches, and communication devices.
5. Automotive Electronics: Supervising microprocessor power in infotainment and control systems.
These applications leverage the device's ability to monitor voltage levels and ensure system reset during undervoltage conditions.

Package

The MAX6444US29L+T is a supervisory circuit in a SOT-143 package. It is designed to monitor power supplies and microprocessor activity, ensuring system stability and reliability by providing a reset output signal when the monitored voltage drops below a specified threshold.

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