Thông số kỹ thuật
| thuộc tính | Giá trị |
| Package | Tape & Reel (TR),Bulk |
| ProductStatus | Obsolete |
| Type | Simple Reset/Power-On Reset |
| NumberofVoltagesMonitored | 1 |
| Voltage-Threshold | 3.08V |
| 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 |
Tổng quan
Description
The MAX823TEUK+T is a microprocessor supervisory circuit designed to monitor the power supply in digital systems. It ensures proper system operation by providing features such as voltage monitoring, reset signal generation, and watchdog timer functionality. The device helps prevent code execution errors during power-up, power-down, or brownout conditions by asserting a reset signal when the monitored supply voltage (typically 3V or 5V) falls below a specified threshold.
Packaged in a compact SOT-23, the MAX823TEUK+T is ideal for space-constrained applications. Its low supply current makes it suitable for battery-operated devices. The integrated watchdog timer can help detect and reset a microprocessor that's not operating within normal parameters, enhancing system reliability. Additionally, the manual reset input allows external control of the reset function, and the reset output is guaranteed for VCC as low as 1V.
Overall, the MAX823TEUK+T is a versatile component for enhancing the dependability and efficiency of microprocessor-based systems by addressing common power supply issues.
Packaged in a compact SOT-23, the MAX823TEUK+T is ideal for space-constrained applications. Its low supply current makes it suitable for battery-operated devices. The integrated watchdog timer can help detect and reset a microprocessor that's not operating within normal parameters, enhancing system reliability. Additionally, the manual reset input allows external control of the reset function, and the reset output is guaranteed for VCC as low as 1V.
Overall, the MAX823TEUK+T is a versatile component for enhancing the dependability and efficiency of microprocessor-based systems by addressing common power supply issues.
Equivalent
The MAX823TEUK+T is a microprocessor reset circuit. Equivalent products include:
1. Microchip MCP130T-450I/TT
2. Texas Instruments TPS3836K33DBVR
3. Analog Devices ADM6326CY46ARJZ-R7
4. ON Semiconductor CAT823TTBI-GT3
5. STMicroelectronics STM6822RWY6F
These alternatives provide similar functionality for monitoring power supply levels and resetting microprocessors, typically with variations in voltage thresholds and packaging. Always verify the specifications to ensure compatibility with your application.
1. Microchip MCP130T-450I/TT
2. Texas Instruments TPS3836K33DBVR
3. Analog Devices ADM6326CY46ARJZ-R7
4. ON Semiconductor CAT823TTBI-GT3
5. STMicroelectronics STM6822RWY6F
These alternatives provide similar functionality for monitoring power supply levels and resetting microprocessors, typically with variations in voltage thresholds and packaging. Always verify the specifications to ensure compatibility with your application.
Features
The MAX823TEUK+T is a microprocessor supervisory circuit designed to monitor the power supply voltage levels in microprocessor systems. Key features include:
1. Voltage Monitoring: It ensures the system operates correctly by monitoring voltage levels and providing a reset signal if the voltage drops below a preset threshold.
2. Reset Function: The device generates a reset signal to microprocessors during power-up, power-down, and brownout conditions, allowing the system to restart operations safely.
3. Manual Reset Input: It includes an input pin for manual reset, allowing users to initiate a reset operation externally.
4. Tolerance: Accurate voltage thresholds with low tolerance ensure precise monitoring.
5. Compact Package: The device comes in a small SOT-23-5 package, making it suitable for space-constrained applications.
6. Low Power Consumption: It features low quiescent current, ideal for battery-operated devices.
7. Temperature Range: It operates efficiently over a wide temperature range, suitable for various environments.
These features make the MAX823TEUK+T an excellent choice for ensuring the reliable operation of electronic systems by providing essential supervisory functions.
1. Voltage Monitoring: It ensures the system operates correctly by monitoring voltage levels and providing a reset signal if the voltage drops below a preset threshold.
2. Reset Function: The device generates a reset signal to microprocessors during power-up, power-down, and brownout conditions, allowing the system to restart operations safely.
3. Manual Reset Input: It includes an input pin for manual reset, allowing users to initiate a reset operation externally.
4. Tolerance: Accurate voltage thresholds with low tolerance ensure precise monitoring.
5. Compact Package: The device comes in a small SOT-23-5 package, making it suitable for space-constrained applications.
6. Low Power Consumption: It features low quiescent current, ideal for battery-operated devices.
7. Temperature Range: It operates efficiently over a wide temperature range, suitable for various environments.
These features make the MAX823TEUK+T an excellent choice for ensuring the reliable operation of electronic systems by providing essential supervisory functions.
Pinout
The MAX823TEUK+T is a 5-pin microprocessor supervisory circuit. It is designed to monitor the power supply voltage of microprocessors and digital systems. Its primary functions include:
1. Reset Output: It provides a reset signal to the microprocessor during power-up, power-down, and brownout conditions, ensuring proper initialization.
2. Manual Reset Input: Allows an external signal to trigger a reset.
3. Watchdog Timer: Monitors the microprocessor's operation and can reset it if it becomes unresponsive.
4. Voltage Monitor: Triggers a reset when the supply voltage drops below a specified threshold.
The five pins are typically as follows:
- GND (Ground): Common ground reference.
- VCC: Supply voltage input.
- RESET: Reset output.
- MR (Manual Reset): Input for manual reset.
- WDI (Watchdog Input): Monitors activity for the watchdog timer.
This configuration helps maintain the stability and reliable operation of microprocessor systems by preventing undefined behavior during power fluctuations.
1. Reset Output: It provides a reset signal to the microprocessor during power-up, power-down, and brownout conditions, ensuring proper initialization.
2. Manual Reset Input: Allows an external signal to trigger a reset.
3. Watchdog Timer: Monitors the microprocessor's operation and can reset it if it becomes unresponsive.
4. Voltage Monitor: Triggers a reset when the supply voltage drops below a specified threshold.
The five pins are typically as follows:
- GND (Ground): Common ground reference.
- VCC: Supply voltage input.
- RESET: Reset output.
- MR (Manual Reset): Input for manual reset.
- WDI (Watchdog Input): Monitors activity for the watchdog timer.
This configuration helps maintain the stability and reliable operation of microprocessor systems by preventing undefined behavior during power fluctuations.
Manufacturer
The MAX823TEUK+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. The company focuses on creating products that enable efficient power management, enhance signal processing, and improve connectivity for a variety of applications, including automotive, consumer electronics, industrial, and communications sectors.
Application
The MAX823TEUK+T is a microprocessor supervisory circuit designed for applications that require monitoring of power supply voltage levels and ensuring the proper operation of microprocessor systems. Its primary applications include:
1. Embedded Systems: It helps prevent microprocessor lockup and ensures reliable operation by providing reset signals during power-up, power-down, and brownout conditions.
2. Battery-Powered Devices: Used in battery-operated electronics to monitor battery voltage and protect against data corruption by ensuring the system resets at a safe battery voltage level.
3. Consumer Electronics: Employed in devices like smartphones, tablets, and wearables to enhance system stability.
4. Industrial Controls: Ensures robustness in industrial applications where supply voltages can be unstable.
1. Embedded Systems: It helps prevent microprocessor lockup and ensures reliable operation by providing reset signals during power-up, power-down, and brownout conditions.
2. Battery-Powered Devices: Used in battery-operated electronics to monitor battery voltage and protect against data corruption by ensuring the system resets at a safe battery voltage level.
3. Consumer Electronics: Employed in devices like smartphones, tablets, and wearables to enhance system stability.
4. Industrial Controls: Ensures robustness in industrial applications where supply voltages can be unstable.
Package
The MAX823TEUK+T is housed in a SOT-23-5 package, which is a small, surface-mount technology (SMT) package ideal for space-constrained applications.
