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Спецификации
| Атрибут | Ценность |
| Package | Tape & Reel (TR),Cut Tape (CT) |
| ProductStatus | Active |
| Type | Simple Reset/Power-On Reset |
| NumberofVoltagesMonitored | 1 |
| Voltage-Threshold | 4.38V |
| Output | Open Drain or Open Collector |
| Reset | Active Low |
| ResetTimeout | 140ms Minimum |
| OperatingTemperature | -40°C ~ 125°C (TA) |
| MountingType | Surface Mount |
| Package/Case | SC-70, SOT-323 |
Обзор
Description
The MAX803MEXR+T is a microprocessor supervisory circuit designed by Maxim Integrated. It is typically used to monitor the power supply in microprocessor-based systems, ensuring reliable operation by detecting power failures and providing a reset signal to the microprocessor. The device is compact and features a low-power consumption design, making it suitable for battery-operated applications.
Key features of the MAX803MEXR+T include:
1. Reset Functionality: It provides an active-low reset output when the supply voltage drops below a preset threshold, ensuring the microprocessor is reset under power instability conditions.
2. Precision Monitoring: It offers precise voltage detection across a range of voltages, catering to various applications.
3. Low Supply Current: The device operates with minimal power, extending battery life in portable devices.
4. Small Package: The MAX803MEXR+T is offered in a compact package, allowing for easy integration into space-constrained designs.
This supervisory circuit is ideal for ensuring the stability and reliability of microprocessor operations in various electronic systems.
Key features of the MAX803MEXR+T include:
1. Reset Functionality: It provides an active-low reset output when the supply voltage drops below a preset threshold, ensuring the microprocessor is reset under power instability conditions.
2. Precision Monitoring: It offers precise voltage detection across a range of voltages, catering to various applications.
3. Low Supply Current: The device operates with minimal power, extending battery life in portable devices.
4. Small Package: The MAX803MEXR+T is offered in a compact package, allowing for easy integration into space-constrained designs.
This supervisory circuit is ideal for ensuring the stability and reliability of microprocessor operations in various electronic systems.
Equivalent
The MAX803MEXR+T is a microprocessor reset circuit. Equivalent products include:
1. Microchip MCP130T series
2. STMicroelectronics STM809/810 series
3. Texas Instruments TPS3839 series
4. Analog Devices ADM809/810 series
5. ON Semiconductor NCP803/809 series
These alternatives provide similar functionality in terms of voltage monitoring and reset capabilities. Always check datasheets for exact specifications and compatibility before substituting.
1. Microchip MCP130T series
2. STMicroelectronics STM809/810 series
3. Texas Instruments TPS3839 series
4. Analog Devices ADM809/810 series
5. ON Semiconductor NCP803/809 series
These alternatives provide similar functionality in terms of voltage monitoring and reset capabilities. Always check datasheets for exact specifications and compatibility before substituting.
Features
The MAX803MEXR+T is a microprocessor supervisory circuit designed to monitor power supplies in microprocessor and digital systems. Key features include:
1. Voltage Monitoring: It monitors supply voltages of 3V, 3.3V, and 5V systems, ensuring the microprocessor operates within safe limits.
2. Reset Functionality: The device provides a reset output during power-up, power-down, and brownout conditions to prevent any faulty operations.
3. Low Supply Current: It operates with a low quiescent current, making it suitable for battery-powered applications.
4. Precision Monitoring: The device offers high precision in voltage threshold detection, ensuring reliable operation.
5. Manual Reset Input: An input pin allows for manual reset, providing additional control over the system reset function.
6. Push-Pull Reset Output: It features a push-pull reset output which is beneficial for interfacing with a wide range of microprocessors.
7. Operating Temperature Range: It supports a broad temperature range, enhancing its applicability in various environments.
These features make the MAX803MEXR+T an excellent choice for applications requiring reliable power supervision and reset management.
1. Voltage Monitoring: It monitors supply voltages of 3V, 3.3V, and 5V systems, ensuring the microprocessor operates within safe limits.
2. Reset Functionality: The device provides a reset output during power-up, power-down, and brownout conditions to prevent any faulty operations.
3. Low Supply Current: It operates with a low quiescent current, making it suitable for battery-powered applications.
4. Precision Monitoring: The device offers high precision in voltage threshold detection, ensuring reliable operation.
5. Manual Reset Input: An input pin allows for manual reset, providing additional control over the system reset function.
6. Push-Pull Reset Output: It features a push-pull reset output which is beneficial for interfacing with a wide range of microprocessors.
7. Operating Temperature Range: It supports a broad temperature range, enhancing its applicability in various environments.
These features make the MAX803MEXR+T an excellent choice for applications requiring reliable power supervision and reset management.
Pinout
The MAX803MEXR+T is a microprocessor supervisory circuit typically used to monitor the power supply voltage in microprocessor systems. It is designed to provide a reset signal to the microprocessor during power-up, power-down, and brownout conditions. The device is commonly packaged in a 3-pin SOT-23 configuration. The typical pin functions are:
1. GND (Ground): This pin is connected to the ground of the system.
2. VCC (Supply Voltage): This pin is connected to the power supply that needs monitoring. The MAX803 monitors the voltage level at this pin.
3. RESET (Output): This pin is the reset output. It typically goes low when VCC falls below a specified threshold, signaling the microprocessor to reset. Once VCC returns to an acceptable level, the RESET pin will go high after a specified delay.
Please note that specific characteristics such as voltage thresholds and timing may vary depending on the particular variant of the device. Always refer to the manufacturer's datasheet for detailed specifications and configurations.
1. GND (Ground): This pin is connected to the ground of the system.
2. VCC (Supply Voltage): This pin is connected to the power supply that needs monitoring. The MAX803 monitors the voltage level at this pin.
3. RESET (Output): This pin is the reset output. It typically goes low when VCC falls below a specified threshold, signaling the microprocessor to reset. Once VCC returns to an acceptable level, the RESET pin will go high after a specified delay.
Please note that specific characteristics such as voltage thresholds and timing may vary depending on the particular variant of the device. Always refer to the manufacturer's datasheet for detailed specifications and configurations.
Manufacturer
The MAX803MEXR+T is manufactured by Analog Devices, Inc., which was formerly known as Maxim Integrated before it was acquired by Analog Devices in 2021. Analog Devices is a multinational company specializing in the design and manufacturing of semiconductor devices, including integrated circuits used in analog and digital signal processing. The company serves a broad range of industries, including communications, computing, industrial, automotive, and consumer electronics. Analog Devices is known for its expertise in high-performance analog, mixed-signal, power management, and radio frequency (RF) integrated circuits, making it a key player in the electronics and semiconductor industry.
Application
The MAX803MEXR+T is a microprocessor supervisory circuit designed for monitoring supply voltages in digital systems. Its primary application areas include:
1. Microprocessor and Microcontroller Systems: Ensures proper reset during power-up, power-down, and brownout conditions.
2. Embedded Systems: Protects against voltage drops and ensures reliable system operation.
3. Battery-Powered Devices: Monitors battery voltage, providing reset signals when voltage levels are inadequate.
4. Consumer Electronics: Used in devices requiring stable operation and protection against voltage fluctuations.
5. Industrial Control Systems: Offers reliable voltage supervision in harsh environments.
6. Networking Equipment: Ensures continuous operation by monitoring power supply integrity.
These applications benefit from the device's low power consumption and precise voltage threshold detection.
1. Microprocessor and Microcontroller Systems: Ensures proper reset during power-up, power-down, and brownout conditions.
2. Embedded Systems: Protects against voltage drops and ensures reliable system operation.
3. Battery-Powered Devices: Monitors battery voltage, providing reset signals when voltage levels are inadequate.
4. Consumer Electronics: Used in devices requiring stable operation and protection against voltage fluctuations.
5. Industrial Control Systems: Offers reliable voltage supervision in harsh environments.
6. Networking Equipment: Ensures continuous operation by monitoring power supply integrity.
These applications benefit from the device's low power consumption and precise voltage threshold detection.
Package
The MAX803MEXR+T is a microprocessor reset circuit by Maxim Integrated. It comes in a SOT-23-3 package, which is a small outline transistor package with three pins. This package type is compact and suitable for space-constrained applications.
