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Спецификации
| Атрибут | Ценность |
| Package | Tape & Reel (TR) |
| 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 ~ 125°C (TA) |
| MountingType | Surface Mount |
| Package/Case | SC-74A, SOT-753 |
Обзор
Description
The MAX823SEUK+T is a microprocessor supervisory circuit designed to monitor power supplies in digital systems. It ensures reliable operation by providing features such as a reset output during power-up, power-down, and brownout conditions. This chip is part of the MAX823 series from Maxim Integrated, now part of Analog Devices.
Key features include:
1. Reset Functionality: It asserts a reset signal whenever the monitored voltage drops below a preset threshold, ensuring microprocessor stability.
2. Low Power Consumption: The device is optimized for low power use, making it suitable for battery-operated devices.
3. Pushbutton Reset Input: This allows for manual reset capabilities, enhancing user control over the system reset process.
4. Watchdog Timer: It includes a watchdog timer to prevent system lockups by resetting the microprocessor if it fails to strobe the watchdog input within a set time.
5. Small Package: The device is available in a compact SOT-23 package, facilitating integration into space-constrained applications.
The MAX823SEUK+T is widely utilized in consumer electronics, automotive systems, and industrial applications for its robustness and reliability in power supervision tasks.
Key features include:
1. Reset Functionality: It asserts a reset signal whenever the monitored voltage drops below a preset threshold, ensuring microprocessor stability.
2. Low Power Consumption: The device is optimized for low power use, making it suitable for battery-operated devices.
3. Pushbutton Reset Input: This allows for manual reset capabilities, enhancing user control over the system reset process.
4. Watchdog Timer: It includes a watchdog timer to prevent system lockups by resetting the microprocessor if it fails to strobe the watchdog input within a set time.
5. Small Package: The device is available in a compact SOT-23 package, facilitating integration into space-constrained applications.
The MAX823SEUK+T is widely utilized in consumer electronics, automotive systems, and industrial applications for its robustness and reliability in power supervision tasks.
Equivalent
The MAX823SEUK+T is a microprocessor supervisory circuit manufactured by Maxim Integrated. Equivalent products can include:
1. Microchip Technologies: MCP130 series.
2. Texas Instruments: TPS3836 series.
3. STMicroelectronics: STM809 series.
4. On Semiconductor: NCP803 series.
5. Analog Devices: ADM809 series.
These equivalents offer similar functionalities, such as monitoring supply voltage levels and providing reset signals to microprocessors. Always verify pin compatibility and specifications before substituting.
1. Microchip Technologies: MCP130 series.
2. Texas Instruments: TPS3836 series.
3. STMicroelectronics: STM809 series.
4. On Semiconductor: NCP803 series.
5. Analog Devices: ADM809 series.
These equivalents offer similar functionalities, such as monitoring supply voltage levels and providing reset signals to microprocessors. Always verify pin compatibility and specifications before substituting.
Features
The MAX823SEUK+T is a microprocessor supervisory circuit from Maxim Integrated, designed to monitor power supplies in microprocessor systems. Key features include:
1. Voltage Monitoring: It monitors the supply voltage and provides a reset signal to the microprocessor during power-up, power-down, and brownout conditions to prevent code execution errors.
2. Reset Output: The device offers a reset output that remains asserted for at least 140ms after the supply voltage has stabilized, ensuring the microprocessor reset pin is held low until the system is ready.
3. Low Supply Current: With a very low quiescent current of around 500nA, it's suitable for battery-powered applications.
4. Precision Voltage Options: Available in different voltage threshold options to accommodate various system requirements.
5. Manual Reset Input: Offers a manual reset input for user-initiated resets.
6. Push-Pull Output: The reset output is available in a push-pull configuration.
These features make the MAX823SEUK+T ideal for ensuring reliable operation in embedded systems by minimizing system errors during power fluctuations.
1. Voltage Monitoring: It monitors the supply voltage and provides a reset signal to the microprocessor during power-up, power-down, and brownout conditions to prevent code execution errors.
2. Reset Output: The device offers a reset output that remains asserted for at least 140ms after the supply voltage has stabilized, ensuring the microprocessor reset pin is held low until the system is ready.
3. Low Supply Current: With a very low quiescent current of around 500nA, it's suitable for battery-powered applications.
4. Precision Voltage Options: Available in different voltage threshold options to accommodate various system requirements.
5. Manual Reset Input: Offers a manual reset input for user-initiated resets.
6. Push-Pull Output: The reset output is available in a push-pull configuration.
These features make the MAX823SEUK+T ideal for ensuring reliable operation in embedded systems by minimizing system errors during power fluctuations.
Pinout
The MAX823SEUK+T is a microprocessor supervisory circuit. It is designed to monitor the power supply voltage of a system and provide a reset signal to the microprocessor during power-up, power-down, or brownout conditions. The device is housed in a SOT-23 package and has 5 pins.
Here is a brief description of its pin functions:
1. GND: Ground pin.
2. RESET (Active-Low): This pin outputs the reset signal. It is active low, meaning it goes low to indicate a reset condition.
3. VCC: The positive supply voltage pin. It is the voltage being monitored by the device.
4. MR: Manual reset input. When this pin is pulled low, it triggers a reset condition.
5. WDI: Watchdog input. This pin is used for the watchdog timer function, where a pulse must be sent to prevent the RESET output from being asserted.
The MAX823SEUK+T is typically used in applications where reliable microprocessor operation is critical, such as in embedded systems.
Here is a brief description of its pin functions:
1. GND: Ground pin.
2. RESET (Active-Low): This pin outputs the reset signal. It is active low, meaning it goes low to indicate a reset condition.
3. VCC: The positive supply voltage pin. It is the voltage being monitored by the device.
4. MR: Manual reset input. When this pin is pulled low, it triggers a reset condition.
5. WDI: Watchdog input. This pin is used for the watchdog timer function, where a pulse must be sent to prevent the RESET output from being asserted.
The MAX823SEUK+T is typically used in applications where reliable microprocessor operation is critical, such as in embedded systems.
Manufacturer
The MAX823SEUK+T is manufactured by Maxim Integrated, which is now part of Analog Devices, Inc. Maxim Integrated is a company that specializes in designing, manufacturing, and selling analog and mixed-signal integrated circuits. The company provides a wide range of products that serve various applications, including power management, sensors, and communication interfaces. As part of Analog Devices, they continue to focus on innovation in the semiconductor industry, offering solutions for automotive, industrial, healthcare, consumer, and telecommunications sectors.
Application
The MAX823SEUK+T is a microprocessor supervisory circuit used primarily in applications requiring monitoring and management of microprocessor or microcontroller systems. Its key functions include monitoring system power supply voltages, providing a reset to the microprocessor during power-up, power-down, and brownout conditions, and offering a manual reset input for controlled reset operations. These features make it suitable for applications in consumer electronics, telecommunications, automotive systems, industrial controls, and battery-operated devices, where reliable system operation and protection against data corruption during power transitions are critical.
Package
The MAX823SEUK+T is packaged in a SOT-143 package. This is a small outline transistor package that typically features four pins and is used for surface-mount technology applications, providing a compact solution for circuit designs.