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Спецификации
| Атрибут | Ценность |
| Package | Tape & Reel (TR),Cut Tape (CT) |
| ProductStatus | Active |
| Type | Simple Reset/Power-On Reset |
| NumberofVoltagesMonitored | 1 |
| Voltage-Threshold | 4.63V |
| Output | Open Drain or Open Collector |
| Reset | Active Low |
| ResetTimeout | 140ms Minimum |
| OperatingTemperature | -40°C ~ 125°C (TA) |
| MountingType | Surface Mount |
| Package/Case | SC-70, SOT-323 |
Обзор
Description
The MAX803LEXR+T is a microprocessor supervisory circuit designed to monitor the power supply levels of digital systems and microprocessors. It ensures that the system operates correctly by supervising the voltage level and providing reset signals to the processor in the event of voltage drops or power failures. The device integrates features such as a precision voltage reference, a fast reset timeout period, and a low supply current, making it suitable for battery-powered applications.
Key features of the MAX803LEXR+T include a low supply current, typically around 3µA, and a reset threshold accuracy of ±1.5%. It offers a manual reset input, allowing users to initiate a reset externally. The device operates over a wide supply voltage range and is housed in a compact package, facilitating easy integration into various designs.
This supervisor IC is commonly used in applications where reliable system performance is critical and where space is at a premium, such as portable devices, embedded systems, and consumer electronics.
Key features of the MAX803LEXR+T include a low supply current, typically around 3µA, and a reset threshold accuracy of ±1.5%. It offers a manual reset input, allowing users to initiate a reset externally. The device operates over a wide supply voltage range and is housed in a compact package, facilitating easy integration into various designs.
This supervisor IC is commonly used in applications where reliable system performance is critical and where space is at a premium, such as portable devices, embedded systems, and consumer electronics.
Equivalent
The MAX803LEXR+T is a microprocessor reset IC. Equivalent products include:
1. Microchip MCP130T-300I/TT
2. ON Semiconductor CAT803TTBI-GT3
3. Texas Instruments TPS3808G01DBVR
4. STMicroelectronics STM811TWX6F
These alternatives offer similar functionality, such as voltage monitoring and reset signal generation, and are suitable for various microcontroller and microprocessor applications. Always verify the specific voltage thresholds, package type, and temperature range to ensure compatibility with your application.
1. Microchip MCP130T-300I/TT
2. ON Semiconductor CAT803TTBI-GT3
3. Texas Instruments TPS3808G01DBVR
4. STMicroelectronics STM811TWX6F
These alternatives offer similar functionality, such as voltage monitoring and reset signal generation, and are suitable for various microcontroller and microprocessor applications. Always verify the specific voltage thresholds, package type, and temperature range to ensure compatibility with your application.
Features
The MAX803LEXR+T is a microprocessor supervisory circuit designed to monitor system power and ensure proper operation. Key features include:
1. Voltage Monitoring: It monitors supply voltage and asserts a reset signal when the voltage drops below a preset threshold, ensuring the microprocessor starts under proper conditions.
2. Reset Output: Provides a reset signal with guaranteed valid logic levels down to VCC = 1V. This signal remains active for a specified time after the voltage returns to an acceptable level.
3. Manual Reset Input: Allows an external push-button or logic signal to initiate a reset.
4. Low Supply Current: Consumes minimal power, typically under 10µA, making it suitable for battery-powered applications.
5. Small Package: Available in compact SOT-23 or similar packages, suitable for space-constrained designs.
6. Temperature Range: Operates over a wide temperature range, typically from -40°C to +85°C, ensuring reliability in various environments.
These features make the MAX803LEXR+T ideal for ensuring stable and reliable microprocessor operations in various electronic applications.
1. Voltage Monitoring: It monitors supply voltage and asserts a reset signal when the voltage drops below a preset threshold, ensuring the microprocessor starts under proper conditions.
2. Reset Output: Provides a reset signal with guaranteed valid logic levels down to VCC = 1V. This signal remains active for a specified time after the voltage returns to an acceptable level.
3. Manual Reset Input: Allows an external push-button or logic signal to initiate a reset.
4. Low Supply Current: Consumes minimal power, typically under 10µA, making it suitable for battery-powered applications.
5. Small Package: Available in compact SOT-23 or similar packages, suitable for space-constrained designs.
6. Temperature Range: Operates over a wide temperature range, typically from -40°C to +85°C, ensuring reliability in various environments.
These features make the MAX803LEXR+T ideal for ensuring stable and reliable microprocessor operations in various electronic applications.
Pinout
The MAX803LEXR+T is a microprocessor supervisory circuit designed to monitor the power supply in microprocessor systems. It typically comes in a 3-pin SOT-23 package. The primary function of this device is to provide a reset signal whenever the power supply voltage levels fall below a specific threshold, ensuring the microprocessor is safely reset and preventing incorrect operation during power-up, power-down, or brownout conditions.
The 3 pins have the following functions:
1. Pin 1 (GND): Ground reference for the device.
2. Pin 2 (VCC): Input supply voltage monitored by the device. It is the main power supply pin.
3. Pin 3 (RESET): Active-low reset output. It remains low when VCC is below the reset threshold, ensuring the microprocessor stays in reset until the supply voltage is stable.
This supervisory circuit is part of the MAX803 series, which features different reset threshold voltages to cater to varying system requirements.
The 3 pins have the following functions:
1. Pin 1 (GND): Ground reference for the device.
2. Pin 2 (VCC): Input supply voltage monitored by the device. It is the main power supply pin.
3. Pin 3 (RESET): Active-low reset output. It remains low when VCC is below the reset threshold, ensuring the microprocessor stays in reset until the supply voltage is stable.
This supervisory circuit is part of the MAX803 series, which features different reset threshold voltages to cater to varying system requirements.
Manufacturer
The MAX803LEXR+T is manufactured by Maxim Integrated, which is now part of Analog Devices, Inc. Maxim Integrated is a company that produces a wide range of analog and mixed-signal integrated circuits. They are known for designing and manufacturing semiconductors that are used in a variety of applications, including consumer electronics, automotive, industrial, and communications.
Analog Devices, Inc., which acquired Maxim Integrated in 2021, is a global leader in the design and manufacturing of analog, mixed-signal, and digital signal processing (DSP) integrated circuits. Analog Devices serves a diverse array of industries and applications, including data conversion and signal processing, power management, RF and microwave, sensing technologies, and more. Their products are critical components in advanced technologies across sectors such as healthcare, automotive, communications, and aerospace.
Analog Devices, Inc., which acquired Maxim Integrated in 2021, is a global leader in the design and manufacturing of analog, mixed-signal, and digital signal processing (DSP) integrated circuits. Analog Devices serves a diverse array of industries and applications, including data conversion and signal processing, power management, RF and microwave, sensing technologies, and more. Their products are critical components in advanced technologies across sectors such as healthcare, automotive, communications, and aerospace.
Application
The MAX803LEXR+T is a microprocessor supervisory circuit used for monitoring power supplies in digital systems. Its key application areas include:
1. Microprocessor and Microcontroller Systems: Ensures reliable operation by monitoring supply voltage and providing a reset signal when voltage levels are out of range.
2. Embedded Systems: Protects against data corruption during power-up, power-down, and brownout conditions.
3. Consumer Electronics: Used in devices requiring reliable power monitoring, such as TVs and gaming consoles.
4. Industrial Equipment: Provides stability and protection in environments with fluctuating power conditions.
5. Networking Devices: Ensures uninterrupted operation by managing power failures and resets in routers and switches.
1. Microprocessor and Microcontroller Systems: Ensures reliable operation by monitoring supply voltage and providing a reset signal when voltage levels are out of range.
2. Embedded Systems: Protects against data corruption during power-up, power-down, and brownout conditions.
3. Consumer Electronics: Used in devices requiring reliable power monitoring, such as TVs and gaming consoles.
4. Industrial Equipment: Provides stability and protection in environments with fluctuating power conditions.
5. Networking Devices: Ensures uninterrupted operation by managing power failures and resets in routers and switches.
Package
The MAX803LEXR+T is packaged in a SOT-23-3 (Small Outline Transistor) form, which is a small footprint surface-mount package.