MAX809T

The MAX809T is a low-voltage microprocessor supervisory circuit designed to monitor power supply levels in digital systems. It primarily functions as a voltage detector, providing a reset signal to microcontrollers and other critical components when the supply voltage falls below a predefined threshold. The MAX809T features a reset output that remains active (low) until the supply voltage rises above the threshold, ensuring proper initialization of the system.
Key features include a fixed reset time delay, low supply current, and a small footprint, making it suitable for battery-powered applications. The device operates over a wide voltage range and is available in various versions with different voltage thresholds, allowing flexibility for diverse applications. The MAX809T is ideal for ensuring reliable operation in consumer electronics, automotive systems, and industrial equipment by preventing erratic behavior during power fluctuations.

The MAX809T is a voltage supervisor designed to monitor supply voltages in various applications. Key features include:
1. Voltage Monitoring: It offers a precise voltage detection for various power supply levels, typically available in variants for 3.0V, 3.3V, and 5.0V systems.
2. Reset Output: Provides an active-low reset output that is triggered when the supply voltage falls below the specified threshold, ensuring reliable operation of microcontrollers and digital logic devices.
3. Fast Response Time: The device features a fast response time, allowing for quick detection of voltage drops, which is critical for system stability.
4. Low Power Consumption: It operates with low supply current, enhancing battery life in portable applications.
5. Temperature Range: Suitable for a wide temperature range, making it versatile for various environmental conditions.
6. Compact Package: Available in small packages, such as SOT23, making it ideal for space-constrained designs.
These features make the MAX809T an effective solution for voltage supervision in automotive, industrial, and consumer electronics applications.

The MAX809T is available in various package types, including the 8-pin MSOP (Mini Small Outline Package) and 5-pin SOT-23 (Small Outline Transistor) packages. These compact packages are designed for space-constrained applications.

The MAX809T is a supervisor IC with a pin count of 5. It is designed to monitor power supply voltages and provide a reset signal for microcontrollers and other digital circuits. The key functions of its pins are as follows:
1. VDD (Pin 1): Supply voltage input.
2. GND (Pin 2): Ground reference.
3. RESET (Pin 3): Active-low reset output; goes low when monitored voltage drops below the threshold.
4. SENSE (Pin 4): Monitors the power supply voltage; connects to the supply voltage that needs monitoring.
5. NC (Pin 5): No connection; not used.
The MAX809T is available in various voltage threshold options, making it suitable for different applications to ensure proper system reset during voltage fluctuations.

The MAX809T is manufactured by Maxim Integrated, which is a semiconductor company known for producing analog and mixed-signal integrated circuits. Founded in 1983 and headquartered in San Jose, California, Maxim Integrated specializes in a wide range of products, including power management, signal processing, and interface solutions for various applications in consumer electronics, automotive, industrial, and communications sectors. In 2021, Maxim Integrated was acquired by Analog Devices, Inc., further expanding its portfolio and expertise in the analog semiconductor market.

The MAX809T is a voltage supervisor used primarily in power management applications. Its key application areas include microprocessor and DSP reset circuits, battery-operated devices for undervoltage protection, power supply sequencing, and automatic system recovery. It helps ensure reliable operation by monitoring voltage levels and providing timely resets when voltages fall below a specified threshold.

Equivalent products to the MAX809T chip include the MCP100, LM809, and TL431. These alternatives offer similar voltage monitoring and reset functionalities. Always check the specific voltage thresholds and package types to ensure compatibility for your application.