仕様
| 属性 | 値 |
| 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 |
概要
Description
The MAX6749KA+T is a microprocessor supervisory circuit designed by Maxim Integrated, which is now part of Analog Devices. It's typically used in electronic devices to monitor power supply levels, providing a reset signal when the voltage drops below a preset threshold. This ensures microprocessors and microcontrollers operate reliably, preventing erratic behavior during power fluctuations.
The MAX6749 series features low supply current and precise reset thresholds, with a variety of threshold options available to match specific application requirements. The "+T" in the part number often denotes a tape-and-reel packaging, which is suitable for automated assembly processes.
Key features of the MAX6749KA+T include a push-pull reset output, low power consumption, and a wide range of operating temperatures. These characteristics make it suitable for use in consumer electronics, automotive systems, and other applications where reliable power monitoring is essential. The compact design facilitates integration into space-constrained environments, making it a versatile component in safeguarding microprocessors against unreliable power conditions.
The MAX6749 series features low supply current and precise reset thresholds, with a variety of threshold options available to match specific application requirements. The "+T" in the part number often denotes a tape-and-reel packaging, which is suitable for automated assembly processes.
Key features of the MAX6749KA+T include a push-pull reset output, low power consumption, and a wide range of operating temperatures. These characteristics make it suitable for use in consumer electronics, automotive systems, and other applications where reliable power monitoring is essential. The compact design facilitates integration into space-constrained environments, making it a versatile component in safeguarding microprocessors against unreliable power conditions.
Equivalent
The MAX6749KA+T chip is a microprocessor supervisory circuit that monitors voltage levels. Equivalent products include:
1. Texas Instruments TPS3808G01 - A precision voltage detector.
2. Analog Devices ADM6315 - A supervisory circuit with similar voltage monitoring capabilities.
3. Microchip Technology MCP101 - A voltage detector and reset generator.
4. ON Semiconductor NCP302 - A low-voltage precision supervisor.
These alternatives offer similar functions for monitoring and managing power supply voltages in electronic systems.
1. Texas Instruments TPS3808G01 - A precision voltage detector.
2. Analog Devices ADM6315 - A supervisory circuit with similar voltage monitoring capabilities.
3. Microchip Technology MCP101 - A voltage detector and reset generator.
4. ON Semiconductor NCP302 - A low-voltage precision supervisor.
These alternatives offer similar functions for monitoring and managing power supply voltages in electronic systems.
Features
The MAX6749KA+T is a microprocessor supervisory circuit designed to monitor the power supply in electronic systems. Key features include:
1. Voltage Monitoring: It monitors single-supply voltages from 1.8V to 5V, ensuring that the system operates within safe limits.
2. Reset Functionality: The device provides a reset output to prevent system malfunctions during power-up, power-down, or brownout conditions.
3. Precision: It features a high accuracy of ±1.5% over temperature, ensuring reliable operation.
4. Low Supply Current: With a low quiescent current, it is energy-efficient and suitable for battery-powered applications.
5. Manual Reset Input: Allows a user-initiated reset, adding flexibility to the system design.
6. Reset Timeout Period: The integrated timeout period ensures the system is correctly reset before operation resumes.
7. Package Options: Supplied in a space-saving SOT package, making it suitable for compact designs.
8. Temperature Range: It operates over a broad temperature range, accommodating various environmental conditions.
Overall, the MAX6749KA+T is ideal for safeguarding microprocessor-based systems by providing reliable voltage monitoring and reset capabilities.
1. Voltage Monitoring: It monitors single-supply voltages from 1.8V to 5V, ensuring that the system operates within safe limits.
2. Reset Functionality: The device provides a reset output to prevent system malfunctions during power-up, power-down, or brownout conditions.
3. Precision: It features a high accuracy of ±1.5% over temperature, ensuring reliable operation.
4. Low Supply Current: With a low quiescent current, it is energy-efficient and suitable for battery-powered applications.
5. Manual Reset Input: Allows a user-initiated reset, adding flexibility to the system design.
6. Reset Timeout Period: The integrated timeout period ensures the system is correctly reset before operation resumes.
7. Package Options: Supplied in a space-saving SOT package, making it suitable for compact designs.
8. Temperature Range: It operates over a broad temperature range, accommodating various environmental conditions.
Overall, the MAX6749KA+T is ideal for safeguarding microprocessor-based systems by providing reliable voltage monitoring and reset capabilities.
Pinout
The MAX6749KA+T is a microprocessor (µP) supervisory circuit designed to monitor supply voltages in digital systems. It typically comes in a small 4-pin SOT-143 package. The key functions of the MAX6749 include:
1. Reset Output: It provides a reset signal to the system when the monitored voltage falls below a specified threshold. This helps in preventing erratic operation during power-up, power-down, or brownout conditions.
2. Manual Reset Input: It allows the user to manually trigger a reset by pulling the MR pin low.
3. Voltage Monitoring: The device monitors the power supply voltage of the system and asserts a reset signal if the voltage drops below a preset threshold.
This IC is used to ensure reliable operation of microcontrollers and digital systems by ensuring they start in a known state following power interruptions.
1. Reset Output: It provides a reset signal to the system when the monitored voltage falls below a specified threshold. This helps in preventing erratic operation during power-up, power-down, or brownout conditions.
2. Manual Reset Input: It allows the user to manually trigger a reset by pulling the MR pin low.
3. Voltage Monitoring: The device monitors the power supply voltage of the system and asserts a reset signal if the voltage drops below a preset threshold.
This IC is used to ensure reliable operation of microcontrollers and digital systems by ensuring they start in a known state following power interruptions.
Manufacturer
The MAX6749KA+T is manufactured by Maxim Integrated, which is a part of Analog Devices, Inc. Maxim Integrated is known for designing and manufacturing analog and mixed-signal integrated circuits. The company specializes in developing highly integrated solutions that help to simplify designs and lower power consumption in various applications. Maxim Integrated's products are widely used in industries such as automotive, communications, consumer, data centers, healthcare, and industrial markets.
Application
The MAX6749KA+T is a voltage monitor IC used in various applications for ensuring system reliability and safety by providing accurate voltage supervision. Key application areas include:
1. Power Supply Monitoring: Ensures systems operate within specified voltage limits.
2. Embedded Systems: Monitors microcontroller and microprocessor voltages.
3. Consumer Electronics: Provides protection against overvoltage in devices like TVs and home appliances.
4. Industrial Equipment: Monitors critical systems to prevent failures due to power anomalies.
5. Networking Equipment: Keeps network devices operating safely by monitoring power levels.
These applications leverage the device's ability to provide precise voltage threshold detection and reset functionality.
1. Power Supply Monitoring: Ensures systems operate within specified voltage limits.
2. Embedded Systems: Monitors microcontroller and microprocessor voltages.
3. Consumer Electronics: Provides protection against overvoltage in devices like TVs and home appliances.
4. Industrial Equipment: Monitors critical systems to prevent failures due to power anomalies.
5. Networking Equipment: Keeps network devices operating safely by monitoring power levels.
These applications leverage the device's ability to provide precise voltage threshold detection and reset functionality.
Package
The MAX6749KA+T is available in a 3-pin SC70 package.
