MAX809STR

The MAX809STR is a voltage supervisor and reset IC designed to monitor power supply levels in microcontroller and digital circuit applications. It ensures that a system resets when the supply voltage drops below a specified threshold, providing reliable operation during power fluctuations. The MAX809 features a precise reset threshold, typically around 4.63V, and a fast response time, ensuring that it activates quickly when voltage levels fall.
This device is available in various package options, making it easy to integrate into diverse designs. The low supply current and ability to operate over a wide temperature range enhance its suitability for battery-powered applications. The MAX809 also includes a manual reset input, allowing for external control of the reset function. Overall, the MAX809STR enhances system reliability by preventing erratic behavior or data corruption during power supply instabilities, making it an essential component in embedded systems and critical electronic devices.

The MAX809STR is a voltage supervisor chip, and its equivalents include the MCP100, LM393 and TL7705. Other alternatives are the MAX800 and MAX801, which provide similar functionalities. Ensure to check specifications such as voltage thresholds and package types when considering substitutes.

The MAX809STR is a low-voltage microprocessor supervisory circuit designed for monitoring power supply levels. Key features include:
1. Voltage Monitoring: It provides reset signals for microprocessors when the supply voltage drops below a specified threshold, typically around 4.63V or 4.38V.

2. Reset Functionality: The device ensures that the reset signal is asserted during power-up and held low until the power supply stabilizes.
3. Reset Timeout: Offers a built-in timeout period (approximately 200 ms) to ensure proper system reset.
4. Low Current Consumption: Operates with low quiescent current (around 1 µA), making it suitable for battery-powered applications.
5. Temperature Range: Designed to work within a wide temperature range, typically from -40°C to +85°C.
6. Compact Package: Available in a small SOT23 package, enabling easy integration into space-constrained designs.
These features make the MAX809STR ideal for various applications, including consumer electronics, automotive systems, and industrial equipment, ensuring reliable operation during power fluctuations.

The MAX809STR is a voltage supervisor with a pin count of 5. Its primary function is to monitor power supply voltages and provide a reset output when the voltage drops below a preset threshold. The reset output is active low and ensures that microcontrollers and other digital devices remain reset until the supply voltage is stable.
The pin configuration is as follows:
1. VCC: Supply voltage input.
2. GND: Ground.
3. RST: Active low reset output.
4. SET: Voltage threshold setting (optional).
5. N.C.: Not connected.
The MAX809STR is commonly used in systems requiring reliable reset functions during power-up, power-down, or brown-out conditions.

The MAX809STR is manufactured by Maxim Integrated, a company known for designing and manufacturing analog and mixed-signal semiconductor products. In 2020, Maxim Integrated was acquired by Analog Devices, Inc., a global leader in high-performance analog, mixed-signal, and digital signal processing (DSP) integrated circuits.
Maxim Integrated specializes in a wide range of products, including power management solutions, sensors, amplifiers, data converters, and interface products. Their components are used in various applications such as consumer electronics, automotive, industrial, and medical devices. The MAX809STR is a voltage supervisor or reset IC, designed to monitor power supply voltages and ensure system reliability by issuing a reset signal when the voltage falls below a designated threshold.

The MAX809STR is a voltage monitoring circuit primarily used for power supply supervision in various applications. Key areas include:
1. Microcontroller Reset Circuits: Ensures proper reset of microcontrollers during power fluctuations.
2. Battery Management Systems: Monitors battery voltage levels to prevent over-discharge.
3. Power Supply Monitoring: Detects under-voltage conditions in power supply systems.
4. Consumer Electronics: Protects devices by resetting them in case of voltage drops.
5. Automotive Systems: Monitors battery levels and supports reliable operation in vehicles.
Overall, it enhances reliability and protects sensitive electronics from voltage anomalies.

The MAX809STR is available in a SOT23-5 package type. This compact surface-mount package is designed for efficient use in various electronic applications, providing a small footprint for space-constrained designs.