規格
| 屬性 | 價值 |
| Package | Tape & Reel (TR),Bulk |
| ProductStatus | Obsolete |
| Type | Simple Reset/Power-On Reset |
| NumberofVoltagesMonitored | 1 |
| Voltage-Threshold | 2.93V |
| Output | Push-Pull, Totem Pole |
| Reset | Active Low |
| ResetTimeout | 140ms Minimum |
| OperatingTemperature | -40°C ~ 85°C (TA) |
| MountingType | Surface Mount |
| Package/Case | TO-253-4, TO-253AA |
概述
Description
The MAX811SEUS+T is a microprocessor supervisory circuit designed to monitor supply voltages in digital systems. It is part of the MAX811 series by Maxim Integrated, known for their reliability in ensuring proper system resets during power-up, power-down, and brownout conditions. This device features a precision voltage reference and comparator to monitor the power supply voltage. When the voltage falls below a specified threshold, it outputs a reset signal to the microprocessor, thereby preventing it from operating under insufficient power conditions that could lead to erratic behavior or system crashes.
The MAX811SEUS+T offers a low supply current, typically around 3µA, and supports a variety of voltage thresholds, making it versatile for different system requirements. It comes in a compact SOT-23 package, which is ideal for space-constrained applications. The "+T" suffix indicates that the product is supplied in tape-and-reel packaging, catering to automated assembly processes. By ensuring reliable operation through effective voltage monitoring and reset control, the MAX811SEUS+T enhances system stability and performance.
The MAX811SEUS+T offers a low supply current, typically around 3µA, and supports a variety of voltage thresholds, making it versatile for different system requirements. It comes in a compact SOT-23 package, which is ideal for space-constrained applications. The "+T" suffix indicates that the product is supplied in tape-and-reel packaging, catering to automated assembly processes. By ensuring reliable operation through effective voltage monitoring and reset control, the MAX811SEUS+T enhances system stability and performance.
Equivalent
The MAX811SEUS+T is a microprocessor reset circuit. Equivalent products include:
1. Microchip Technology MCP130T-450I/TT - Similar reset functionality with precision thresholds.
2. Texas Instruments TPS3823-33DBVR - Provides similar features with adjustable-delay supervisor.
3. ON Semiconductor CAT811STBI-GT3 - Offers a similar reset function with a variety of thresholds.
4. STMicroelectronics STM809S - Provides equivalent reset signal capability.
Always verify specifications to ensure compatibility with your application.
1. Microchip Technology MCP130T-450I/TT - Similar reset functionality with precision thresholds.
2. Texas Instruments TPS3823-33DBVR - Provides similar features with adjustable-delay supervisor.
3. ON Semiconductor CAT811STBI-GT3 - Offers a similar reset function with a variety of thresholds.
4. STMicroelectronics STM809S - Provides equivalent reset signal capability.
Always verify specifications to ensure compatibility with your application.
Features
The MAX811SEUS+T is a microprocessor supervisory circuit designed to monitor power supplies in microprocessor systems. Key features include:
1. Precision Monitoring: It provides an accurate reset signal when the supply voltage drops below a preset threshold, ensuring reliable system resets.
2. Reset Timeout: Typically, it has a fixed reset timeout period of 140ms, ensuring sufficient time for the supply voltage to stabilize before the microprocessor restarts.
3. Low Supply Current: The device operates with a very low supply current, making it suitable for battery-powered applications.
4. Manual Reset Input: It includes a manual reset input, allowing an external signal to initiate a reset.
5. Push-Pull Output: The reset output is push-pull, which is suitable for devices that require a specific reset signal type.
6. Operating Voltage Range: It supports a wide range of operating supply voltages.
7. Compact Package: Offered in a SOT-143 package, it is compact and suitable for space-constrained applications.
These features make the MAX811SEUS+T ideal for ensuring reliable operation of microprocessor systems by safeguarding against power supply issues.
1. Precision Monitoring: It provides an accurate reset signal when the supply voltage drops below a preset threshold, ensuring reliable system resets.
2. Reset Timeout: Typically, it has a fixed reset timeout period of 140ms, ensuring sufficient time for the supply voltage to stabilize before the microprocessor restarts.
3. Low Supply Current: The device operates with a very low supply current, making it suitable for battery-powered applications.
4. Manual Reset Input: It includes a manual reset input, allowing an external signal to initiate a reset.
5. Push-Pull Output: The reset output is push-pull, which is suitable for devices that require a specific reset signal type.
6. Operating Voltage Range: It supports a wide range of operating supply voltages.
7. Compact Package: Offered in a SOT-143 package, it is compact and suitable for space-constrained applications.
These features make the MAX811SEUS+T ideal for ensuring reliable operation of microprocessor systems by safeguarding against power supply issues.
Pinout
The MAX811SEUS+T is a microprocessor supervisory circuit produced by Maxim Integrated (now part of Analog Devices). It is used to monitor the power supply voltage in microprocessor systems and provides a reset signal to the processor during power-up, power-down, and brownout conditions.
The MAX811SEUS+T comes in a small SOT-143 package and has a total of 4 pins. The pin functions are as follows:
1. GND (Pin 1): Ground reference for the device.
2. RESET (Pin 2): Active-low reset output. It asserts low when the monitored voltage falls below the threshold or during power-up.
3. VCC (Pin 3): Supply voltage input. It monitors the supply voltage to detect undervoltage conditions.
4. NC (Pin 4): No connect; this pin is typically not used.
This configuration allows the MAX811SEUS+T to provide essential reset functionality, ensuring the microprocessor can safely start and operate within its specified voltage range.
The MAX811SEUS+T comes in a small SOT-143 package and has a total of 4 pins. The pin functions are as follows:
1. GND (Pin 1): Ground reference for the device.
2. RESET (Pin 2): Active-low reset output. It asserts low when the monitored voltage falls below the threshold or during power-up.
3. VCC (Pin 3): Supply voltage input. It monitors the supply voltage to detect undervoltage conditions.
4. NC (Pin 4): No connect; this pin is typically not used.
This configuration allows the MAX811SEUS+T to provide essential reset functionality, ensuring the microprocessor can safely start and operate within its specified voltage range.
Manufacturer
The MAX811SEUS+T is manufactured by Analog Devices, Inc. This company specializes in the design and production of a wide range of semiconductor devices, including analog, mixed-signal, and digital signal processing integrated circuits. Analog Devices is known for its high-performance products and solutions that are used in various applications, including industrial, communications, automotive, and consumer electronics.
Application
The MAX811SEUS+T is a microprocessor supervisory circuit commonly used in the following application areas:
1. Embedded Systems: Ensures reliable operation by monitoring voltage levels and initiating reset sequences.
2. Consumer Electronics: Provides protection against power supply fluctuations in gadgets like smartphones and tablets.
3. Industrial Control Systems: Maintains system stability by supervising critical microprocessor functions.
4. Automotive Electronics: Monitors microcontroller units to prevent malfunctions in vehicles.
5. Communication Devices: Assures continuous operation by managing power cycles in networking equipment.
This component is valued for its compact design, low power consumption, and reliable performance in protecting microprocessor-based systems.
1. Embedded Systems: Ensures reliable operation by monitoring voltage levels and initiating reset sequences.
2. Consumer Electronics: Provides protection against power supply fluctuations in gadgets like smartphones and tablets.
3. Industrial Control Systems: Maintains system stability by supervising critical microprocessor functions.
4. Automotive Electronics: Monitors microcontroller units to prevent malfunctions in vehicles.
5. Communication Devices: Assures continuous operation by managing power cycles in networking equipment.
This component is valued for its compact design, low power consumption, and reliable performance in protecting microprocessor-based systems.
Package
The MAX811SEUS+T is packaged in a SOT-143 (Small Outline Transistor) configuration, which is a compact, surface-mount package ideal for space-constrained applications. It typically includes features suitable for supervisory circuits, such as monitoring supply voltages in microprocessor-based systems.
