Thông số kỹ thuật
| thuộc tính | Giá trị |
| Package | Tape & Reel (TR),Cut Tape (CT) |
| ProductStatus | Active |
| 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 ~ 105°C (TJ) |
| MountingType | Surface Mount |
| Package/Case | TO-236-3, SC-59, SOT-23-3 |
Tổng quan
Description
The MAX809LTRG is a microprocessor supervisory circuit designed to monitor the supply voltage in digital systems and generate a reset signal to ensure proper operation. It is commonly used in applications to prevent microcontrollers and other digital circuits from operating under insufficient power conditions, which can lead to undefined behavior.
This device features a precision voltage reference and comparator circuit that monitors the power supply voltage. If the voltage drops below a predefined threshold, the MAX809LTRG asserts a reset signal. The reset remains active until the voltage returns to an acceptable level and stabilizes, ensuring the system restarts correctly.
Key features include low supply current, ensuring minimal power consumption, and a variety of voltage threshold options to suit different applications. It is available in compact, surface-mount packages, making it suitable for space-constrained designs.
The MAX809LTRG is widely used in battery-powered devices, embedded systems, and any application requiring reliable power supervision to protect against data corruption or system malfunction due to power issues.
This device features a precision voltage reference and comparator circuit that monitors the power supply voltage. If the voltage drops below a predefined threshold, the MAX809LTRG asserts a reset signal. The reset remains active until the voltage returns to an acceptable level and stabilizes, ensuring the system restarts correctly.
Key features include low supply current, ensuring minimal power consumption, and a variety of voltage threshold options to suit different applications. It is available in compact, surface-mount packages, making it suitable for space-constrained designs.
The MAX809LTRG is widely used in battery-powered devices, embedded systems, and any application requiring reliable power supervision to protect against data corruption or system malfunction due to power issues.
Equivalent
Equivalent products to the MAX809LTRG chip, which is a voltage monitoring IC, include:
1. MCP100 by Microchip Technology
2. STM809 by STMicroelectronics
3. ADM809 by Analog Devices
4. TPS382x by Texas Instruments
These chips perform similar functions, offering reset supervisor capabilities to protect microcontrollers and other digital components from under-voltage conditions. Always check the specific parameters to ensure compatibility with your application.
1. MCP100 by Microchip Technology
2. STM809 by STMicroelectronics
3. ADM809 by Analog Devices
4. TPS382x by Texas Instruments
These chips perform similar functions, offering reset supervisor capabilities to protect microcontrollers and other digital components from under-voltage conditions. Always check the specific parameters to ensure compatibility with your application.
Features
The MAX809LTRG is a microprocessor supervisory circuit designed to monitor the power supply voltage in digital systems. Key features include:
1. Supply Voltage Monitoring: It monitors the power supply and resets the microprocessor during power-up, power-down, and brownout conditions.
2. Reset Functionality: Provides an active-low reset output to ensure the microprocessor starts under a known condition. The reset signal is asserted whenever the supply voltage drops below a preset threshold.
3. Precision Thresholds: Offers accurate voltage threshold detection, typically with a tolerance of ±2%.
4. Low Supply Current: Consumes minimal power, making it suitable for battery-operated devices.
5. Manual Reset Capability: Can be manually reset via an external input.
6. Small Package: Available in a tiny SOT-23 package, which is ideal for space-constrained applications.
7. Temperature Range: Operates over an extended temperature range, suitable for industrial applications.
These features make the MAX809LTRG an ideal choice for ensuring reliable operation of microprocessor-based systems by protecting against low voltage conditions.
1. Supply Voltage Monitoring: It monitors the power supply and resets the microprocessor during power-up, power-down, and brownout conditions.
2. Reset Functionality: Provides an active-low reset output to ensure the microprocessor starts under a known condition. The reset signal is asserted whenever the supply voltage drops below a preset threshold.
3. Precision Thresholds: Offers accurate voltage threshold detection, typically with a tolerance of ±2%.
4. Low Supply Current: Consumes minimal power, making it suitable for battery-operated devices.
5. Manual Reset Capability: Can be manually reset via an external input.
6. Small Package: Available in a tiny SOT-23 package, which is ideal for space-constrained applications.
7. Temperature Range: Operates over an extended temperature range, suitable for industrial applications.
These features make the MAX809LTRG an ideal choice for ensuring reliable operation of microprocessor-based systems by protecting against low voltage conditions.
Pinout
The MAX809LTRG is a microprocessor supervisory circuit designed to monitor power supplies in digital systems. It typically comes in a SOT-23 package and features a 3-pin configuration. The pin count and functions are as follows:
1. Pin 1 (GND): Ground pin, which is connected to the system ground.
2. Pin 2 (RESET): This is the active-low reset output pin. When the monitored voltage drops below the specified threshold, this pin goes low, initiating a reset process to the microprocessor.
3. Pin 3 (VCC): Supply voltage pin. This is connected to the voltage that the device is monitoring.
The MAX809 supervises the power supply voltage level and provides a reset output to ensure the microprocessor operates correctly and safely during power-up, power-down, and brownout conditions.
1. Pin 1 (GND): Ground pin, which is connected to the system ground.
2. Pin 2 (RESET): This is the active-low reset output pin. When the monitored voltage drops below the specified threshold, this pin goes low, initiating a reset process to the microprocessor.
3. Pin 3 (VCC): Supply voltage pin. This is connected to the voltage that the device is monitoring.
The MAX809 supervises the power supply voltage level and provides a reset output to ensure the microprocessor operates correctly and safely during power-up, power-down, and brownout conditions.
Manufacturer
The MAX809LTRG is manufactured by ON Semiconductor, which is now known as onsemi. onsemi is a leading semiconductor supplier that focuses on energy-efficient innovations and solutions for the automotive, industrial, cloud power, and Internet of Things (IoT) sectors. The company designs and produces a wide range of semiconductor components, including power management devices, sensors, custom devices, and standard components like voltage regulators, such as the MAX809 series. onsemi aims to support sustainable efforts by providing technologies that help reduce energy consumption and improve performance in various electronic systems.
Application
The MAX809LTRG is a microprocessor supervisory circuit used in various applications to ensure reliable system operation. Key application areas include:
1. Embedded Systems: Ensures reliable microprocessor resets during system power-up and power-down sequences.
2. Consumer Electronics: Provides reset functionality to prevent system crashes or malfunctions.
3. Industrial Control Systems: Monitors supply voltage and issues resets to maintain system stability.
4. Automotive Electronics: Protects against low voltage conditions in vehicle microcontrollers.
5. Communication Equipment: Ensures reliable operation by preventing data corruption during power fluctuations.
6. Battery-Powered Devices: Extends battery life by managing power efficiently and preventing unnecessary resets.
These circuits are critical in maintaining system integrity across various low-power and voltage-sensitive applications.
1. Embedded Systems: Ensures reliable microprocessor resets during system power-up and power-down sequences.
2. Consumer Electronics: Provides reset functionality to prevent system crashes or malfunctions.
3. Industrial Control Systems: Monitors supply voltage and issues resets to maintain system stability.
4. Automotive Electronics: Protects against low voltage conditions in vehicle microcontrollers.
5. Communication Equipment: Ensures reliable operation by preventing data corruption during power fluctuations.
6. Battery-Powered Devices: Extends battery life by managing power efficiently and preventing unnecessary resets.
These circuits are critical in maintaining system integrity across various low-power and voltage-sensitive applications.
Package
The MAX809LTRG is available in a SOT-23 package type.
