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規格
| 屬性 | 價值 |
| Brand | Analog Devices / Maxim Integrated |
| ProductType | Supervisory Circuits |
| Series | MAX824R |
| Subcategory | PMIC - Power Management ICs |
| MinimumOperatingTemperature | - 40 C |
| MaximumOperatingTemperature | + 125 C |
| Type | Voltage Supervisory |
| MountingStyle | SMD/SMT |
| Package/Case | SOT-23-5 |
| NumberofInputsMonitored | 1 Input |
| OutputType | Active High, Active Low, Push-Pull |
| ManualReset | No Manual Reset |
| WatchdogTimers | Watchdog |
| SupplyVoltage-Max | 5.5 V |
| OperatingSupplyCurrent | 5 uA |
| OvervoltageThreshold | 2.66 V |
| SupplyVoltage-Min | 1.2 V |
| UndervoltageThreshold | 2.59 V |
| Part#Aliases | MAX824R |
| UnitWeight | 0.001058 oz |
| Height | 1.1 mm |
| Length | 2.9 mm |
| Width | 1.63 mm |
| ThresholdVoltage | 2.5 V, 3 V, 3.3 V, 5 V |
| BatteryBackupSwitching | No Backup |
| ResetDelayTime | 280 ms |
| ChipEnableSignals | No Chip Enable |
| Pd-PowerDissipation | 571 mW |
| PowerFailDetection | No |
概述
Description
The MAX824REUK is a voltage supervisor IC designed to monitor power supply voltages in microprocessor-based systems. It ensures that the system operates correctly by providing features such as voltage monitoring, reset generation, and power-fail detection. With a reset threshold typically set at 4.65V, it generates a reset signal when the supply voltage drops below this level, preventing erratic behavior in digital circuits.
Key features include a fast response time, low supply current, and a manual reset input. The device operates over a wide supply voltage range (from 2.0V to 5.5V) and can be used in various applications, including automotive, industrial, and consumer electronics.
The MAX824REUK is packaged in a space-saving 8-pin µMAX® package, making it suitable for compact designs. Overall, it enhances system reliability by ensuring stable operation during power fluctuations.
Key features include a fast response time, low supply current, and a manual reset input. The device operates over a wide supply voltage range (from 2.0V to 5.5V) and can be used in various applications, including automotive, industrial, and consumer electronics.
The MAX824REUK is packaged in a space-saving 8-pin µMAX® package, making it suitable for compact designs. Overall, it enhances system reliability by ensuring stable operation during power fluctuations.
Equivalent
The MAX824REUK is a voltage supervisor with a 3.08V threshold. Equivalent products include the LM8051, MCP100, and TPS3808. These alternatives also provide voltage monitoring and reset functionality, but it's essential to check specific pin configurations and voltage thresholds to ensure compatibility with your application.
Features
The MAX824REUK is a microprocessor supervisory circuit designed for ensuring reliable operation in microprocessor-based systems. Key features include:
1. Voltage Monitoring: It monitors the supply voltage and provides reset signals when voltage drops below a specified threshold.
2. Manual Reset Input: Allows for an external reset signal to be applied, ensuring system reliability during startup.
3. Active-Low Reset Output: Provides an active-low reset signal, which is asserted when supply voltage is below the threshold or during power-up.
4. Reset Delay: Features a built-in delay for the reset output, ensuring that the microprocessor has stabilized before operating.
5. Wide Supply Voltage Range: Operates between 1.2V to 5.5V, making it suitable for various low-voltage applications.
6. Temperature Range: Designed to function effectively over a temperature range of -40°C to +85°C.
7. Low Power Consumption: Consumes minimal power, enhancing energy efficiency in portable devices.
These features make the MAX824REUK ideal for applications in computers, automotive systems, and industrial controls.
1. Voltage Monitoring: It monitors the supply voltage and provides reset signals when voltage drops below a specified threshold.
2. Manual Reset Input: Allows for an external reset signal to be applied, ensuring system reliability during startup.
3. Active-Low Reset Output: Provides an active-low reset signal, which is asserted when supply voltage is below the threshold or during power-up.
4. Reset Delay: Features a built-in delay for the reset output, ensuring that the microprocessor has stabilized before operating.
5. Wide Supply Voltage Range: Operates between 1.2V to 5.5V, making it suitable for various low-voltage applications.
6. Temperature Range: Designed to function effectively over a temperature range of -40°C to +85°C.
7. Low Power Consumption: Consumes minimal power, enhancing energy efficiency in portable devices.
These features make the MAX824REUK ideal for applications in computers, automotive systems, and industrial controls.
Pinout
The MAX824REUK is a microprocessor supervisory circuit featuring a total of 8 pins. Its primary functions include monitoring power supply voltages and providing reset signals to microcontrollers and other digital logic devices.
Pin Configuration:
1. VDD - Supply Voltage
2. GND - Ground
3. RST - Active-low reset output
4. MR - Manual Reset input (active-low)
5. VIT - Voltage Monitor Input
6. VREF - Reference Voltage Output
7. NC - No Connect
8. TEST - Test Pin (typically tied to GND)
The MAX824 is designed for applications requiring reliable reset operation during power-up, power-down, and brownout conditions. It ensures that the microcontroller does not begin executing instructions until the supply voltage has stabilized.
Pin Configuration:
1. VDD - Supply Voltage
2. GND - Ground
3. RST - Active-low reset output
4. MR - Manual Reset input (active-low)
5. VIT - Voltage Monitor Input
6. VREF - Reference Voltage Output
7. NC - No Connect
8. TEST - Test Pin (typically tied to GND)
The MAX824 is designed for applications requiring reliable reset operation during power-up, power-down, and brownout conditions. It ensures that the microcontroller does not begin executing instructions until the supply voltage has stabilized.
Manufacturer
The MAX824REUK is manufactured by Analog Devices, Inc. (ADI), a leading global semiconductor company. Founded in 1965, Analog Devices specializes in high-performance analog, mixed-signal, and digital signal processing (DSP) integrated circuits. The company’s products are widely used in various applications, including communications, automotive, industrial automation, healthcare, and consumer electronics.
Analog Devices is known for its innovative solutions in signal processing and has built a strong reputation for quality and reliability in the semiconductor industry. The MAX824REUK specifically is a supervisory circuit designed to monitor power supply voltages and provide system reset functionality, often used in microcontroller applications to ensure proper operation during power fluctuations.
With a focus on advancing technology, ADI invests in research and development to create cutting-edge products and maintain its competitive edge in the market. The company operates globally, serving a diverse range of customers across multiple sectors, emphasizing design excellence and customer support.
Analog Devices is known for its innovative solutions in signal processing and has built a strong reputation for quality and reliability in the semiconductor industry. The MAX824REUK specifically is a supervisory circuit designed to monitor power supply voltages and provide system reset functionality, often used in microcontroller applications to ensure proper operation during power fluctuations.
With a focus on advancing technology, ADI invests in research and development to create cutting-edge products and maintain its competitive edge in the market. The company operates globally, serving a diverse range of customers across multiple sectors, emphasizing design excellence and customer support.
Application
The MAX824REUK is a microprocessor supervisory circuit primarily used in applications requiring power management and monitoring. Its key application areas include:
1. Microcontroller Reset: Ensures proper startup and reset of microcontrollers.
2. Power Supply Monitoring: Monitors voltage levels to prevent system failures.
3. Automotive Electronics: Used in automotive systems for reliability during power fluctuations.
4. Consumer Electronics: Enhances the reliability of devices like smartphones, tablets, and home appliances.
5. Industrial Automation: Provides supervisory functions in industrial control systems.
Overall, it enhances system reliability and protects against power supply issues.
1. Microcontroller Reset: Ensures proper startup and reset of microcontrollers.
2. Power Supply Monitoring: Monitors voltage levels to prevent system failures.
3. Automotive Electronics: Used in automotive systems for reliability during power fluctuations.
4. Consumer Electronics: Enhances the reliability of devices like smartphones, tablets, and home appliances.
5. Industrial Automation: Provides supervisory functions in industrial control systems.
Overall, it enhances system reliability and protects against power supply issues.
Package
The MAX824REUK is packaged in a 5-pin SOT-23 surface-mount package.