Thông số kỹ thuật
| thuộc tính | Giá trị |
| Package | Tape & Reel (TR),Cut Tape (CT),Bulk |
| ProductStatus | Obsolete |
| Type | Simple Reset/Power-On Reset |
| NumberofVoltagesMonitored | 1 |
| Voltage-Threshold | 4.63V |
| 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 |
Tổng quan
Description
The MAX811LEUS+T is a microprocessor supervisory circuit designed by Maxim Integrated to monitor the supply voltage of microprocessors and digital systems. It ensures system reliability by asserting a reset signal whenever the monitored supply voltage falls below a preset threshold. This component helps prevent erroneous operations during power-up, power-down, or brownout conditions.
Key features include:
1. Voltage Monitoring: Tracks system voltage to detect drops below a specific threshold.
2. Reset Functionality: Provides a reset output that remains active until the monitored voltage stabilizes, ensuring that the microprocessor starts in a known state.
3. Low Supply Current: Operates with minimal power consumption.
4. Precision and Reliability: High accuracy in voltage detection and reset timing.
5. Compact Package: Available in small form factors suitable for space-constrained applications.
The MAX811LEUS+T is typically used in embedded systems, automotive applications, and other electronic devices where reliable operation is critical. Its integration into designs helps protect against issues arising from power anomalies.
Key features include:
1. Voltage Monitoring: Tracks system voltage to detect drops below a specific threshold.
2. Reset Functionality: Provides a reset output that remains active until the monitored voltage stabilizes, ensuring that the microprocessor starts in a known state.
3. Low Supply Current: Operates with minimal power consumption.
4. Precision and Reliability: High accuracy in voltage detection and reset timing.
5. Compact Package: Available in small form factors suitable for space-constrained applications.
The MAX811LEUS+T is typically used in embedded systems, automotive applications, and other electronic devices where reliable operation is critical. Its integration into designs helps protect against issues arising from power anomalies.
Equivalent
The MAX811LEUS+T is a microprocessor supervisory circuit. Equivalent products include:
1. MCP101 series by Microchip Technology
2. TPS3808 series by Texas Instruments
3. STM811 series by STMicroelectronics
4. ADM811 series by Analog Devices
5. CAT811 series by ON Semiconductor
These alternatives provide similar functionalities like reset monitoring and voltage supervision for microprocessors. Always check the specific parameters and footprint compatibility for your application needs.
1. MCP101 series by Microchip Technology
2. TPS3808 series by Texas Instruments
3. STM811 series by STMicroelectronics
4. ADM811 series by Analog Devices
5. CAT811 series by ON Semiconductor
These alternatives provide similar functionalities like reset monitoring and voltage supervision for microprocessors. Always check the specific parameters and footprint compatibility for your application needs.
Features
The MAX811LEUS+T is a microprocessor supervisory circuit designed to monitor power supplies in microprocessor and digital systems. Key features include:
1. Reset Output: Provides a reset signal whenever the monitored supply voltage drops below a preset threshold, ensuring that the microprocessor is reset during power-up, power-down, and brownout conditions.
2. Precision Monitoring: It monitors supply voltages with high precision, typically at a threshold of 4.63V for the "L" version.
3. Manual Reset Input: Allows an external pushbutton or logic signal to trigger a reset, providing flexibility in system design.
4. Active-Low Reset: The reset output remains active low until the supply voltage stabilizes and remains above the threshold for a specified minimum time.
5. Low Supply Current: Consumes minimal power, making it suitable for battery-operated devices.
6. Push-Pull Output: The reset output is push-pull, eliminating the need for an external pull-up resistor.
7. Temperature Range: Operates over a wide temperature range, typically from -40°C to +85°C, suitable for industrial applications.
These features make the MAX811LEUS+T a reliable choice for ensuring microprocessor system reliability.
1. Reset Output: Provides a reset signal whenever the monitored supply voltage drops below a preset threshold, ensuring that the microprocessor is reset during power-up, power-down, and brownout conditions.
2. Precision Monitoring: It monitors supply voltages with high precision, typically at a threshold of 4.63V for the "L" version.
3. Manual Reset Input: Allows an external pushbutton or logic signal to trigger a reset, providing flexibility in system design.
4. Active-Low Reset: The reset output remains active low until the supply voltage stabilizes and remains above the threshold for a specified minimum time.
5. Low Supply Current: Consumes minimal power, making it suitable for battery-operated devices.
6. Push-Pull Output: The reset output is push-pull, eliminating the need for an external pull-up resistor.
7. Temperature Range: Operates over a wide temperature range, typically from -40°C to +85°C, suitable for industrial applications.
These features make the MAX811LEUS+T a reliable choice for ensuring microprocessor system reliability.
Pinout
The MAX811LEUS+T is a microprocessor supervisory circuit designed to monitor the power supply to a microprocessor and ensure it operates within specified voltage limits. It is typically housed in a SOT-143 package, which has 4 pins.
Here is a concise description of the pin functions:
1. Pin 1 (RESET): This is the reset output pin. It typically provides a reset signal to the microprocessor. When the monitored voltage falls below the threshold level, this pin goes low to reset the microprocessor.
2. Pin 2 (GND): This pin is the ground pin and serves as the common reference point for the device.
3. Pin 3 (MR): This is the manual reset input. When pulled low, it forces the RESET output to go low, allowing manual reset control.
4. Pin 4 (VCC): This is the power supply input. It monitors the voltage level and determines when to activate the RESET output based on the voltage threshold.
The MAX811LEUS+T is used to ensure reliable operation by preventing the microprocessor from operating under low voltage conditions, thus protecting against data corruption or erratic behavior.
Here is a concise description of the pin functions:
1. Pin 1 (RESET): This is the reset output pin. It typically provides a reset signal to the microprocessor. When the monitored voltage falls below the threshold level, this pin goes low to reset the microprocessor.
2. Pin 2 (GND): This pin is the ground pin and serves as the common reference point for the device.
3. Pin 3 (MR): This is the manual reset input. When pulled low, it forces the RESET output to go low, allowing manual reset control.
4. Pin 4 (VCC): This is the power supply input. It monitors the voltage level and determines when to activate the RESET output based on the voltage threshold.
The MAX811LEUS+T is used to ensure reliable operation by preventing the microprocessor from operating under low voltage conditions, thus protecting against data corruption or erratic behavior.
Manufacturer
The MAX811LEUS+T is manufactured by Maxim Integrated, which is now part of Analog Devices, Inc. Maxim Integrated is known for designing and manufacturing analog and mixed-signal integrated circuits. It serves various sectors, including consumer, automotive, industrial, and communications markets. Maxim Integrated's products typically include analog devices, power management systems, battery management, sensors, interface, communications, and embedded security solutions. The MAX811LEUS+T itself is a microprocessor supervisory circuit, which plays a critical role in ensuring the proper operation of microcontrollers and other digital systems by monitoring power supply levels and providing necessary reset signals during power up, power down, and brownout conditions.
Application
The MAX811LEUS+T is a microprocessor supervisory circuit that is commonly used in applications requiring reliable microprocessor or microcontroller operation. Its primary function is to monitor the supply voltage and provide a reset signal to prevent erratic operation during power-up, power-down, or brownout conditions. Key application areas include embedded systems, industrial controls, battery-operated devices, automotive electronics, telecommunications equipment, and any system where maintaining reliable operation of digital circuits is critical. Its small size and low power consumption make it suitable for portable and space-constrained devices.
Package
The MAX811LEUS+T is a microprocessor supervisory circuit typically packaged in a SOT-143 form factor. This package is a small outline transistor package with four terminals, designed for surface-mount technology.