MAX6900ETT+T

Product Overview

Category: Integrated Circuits (ICs)

Use: The MAX6900ETT+T is a precision, low-power, microprocessor supervisory circuit that monitors the power supply voltage of a microprocessor-based system. It provides reset output during power-up, power-down, and brownout conditions.

Characteristics: - Precision monitoring of power supply voltage - Low power consumption - Reset output during power-up, power-down, and brownout conditions - Wide operating voltage range - Small package size

Package: The MAX6900ETT+T is available in a 6-pin Thin SOT23 package.

Essence: The essence of the MAX6900ETT+T is to ensure reliable operation of microprocessor-based systems by monitoring the power supply voltage and providing reset functionality when necessary.

Packaging/Quantity: The MAX6900ETT+T is typically sold in reels containing 3000 units per reel.

Specifications

• Operating Voltage Range: 1.2V to 5.5V
• Reset Threshold Voltage Options: 4.63V, 4.38V, 4.00V, 3.08V, 2.93V, 2.63V, 2.32V, 2.06V
• Reset Timeout Period: 140ms (typical)
• Quiescent Current: 7µA (typical)
• Operating Temperature Range: -40°C to +85°C

Pin Configuration

The MAX6900ETT+T has the following pin configuration:

```

---

| | --|----|-- VCC --|----|-- GND --|----|-- RESET --|----|-- MR --|____|-- NC ```

• VCC: Power supply voltage input
• GND: Ground reference
• RESET: Reset output
• MR: Manual reset input
• NC: No connection

Functional Features

1. Precision Voltage Monitoring: The MAX6900ETT+T accurately monitors the power supply voltage, ensuring reliable operation of the microprocessor-based system.

2. Reset Output: It provides a reset signal to the microprocessor during power-up, power-down, and brownout conditions, preventing erratic behavior or data corruption.

3. Wide Operating Voltage Range: The MAX6900ETT+T can operate within a wide voltage range of 1.2V to 5.5V, making it suitable for various applications.

4. Low Power Consumption: With a quiescent current of only 7µA, the MAX6900ETT+T minimizes power consumption, prolonging battery life in portable devices.

Advantages and Disadvantages

Advantages: - Precise voltage monitoring ensures system reliability. - Reset functionality prevents data corruption. - Wide operating voltage range allows for versatile applications. - Low power consumption extends battery life.

Disadvantages: - Limited number of reset threshold voltage options. - Manual reset input may require additional external components for implementation.

Working Principles

The MAX6900ETT+T operates by continuously monitoring the power supply voltage. When the voltage falls below the specified threshold, indicating a power loss or brownout condition, the circuit triggers a reset signal to the microprocessor. This ensures that the system starts up cleanly and avoids any potential data corruption or erratic behavior.

Detailed Application Field Plans

The MAX6900ETT+T is commonly used in microprocessor-based systems where reliable power supply monitoring and reset functionality are critical. Some specific application fields include:

1. Embedded Systems: The MAX6900ETT+T is widely used in embedded systems such as industrial control systems, automotive electronics, and home automation. It ensures the stability and integrity of these systems by providing accurate voltage monitoring and reset capabilities.

2. Consumer Electronics: Many consumer electronic devices, such as smartphones, tablets, and gaming consoles, rely on the MAX6900ETT+T to ensure proper power management and system initialization. It helps prevent data loss or corruption during power transitions.

3. Medical Devices: Medical equipment, including patient monitors, infusion pumps, and diagnostic devices, require reliable operation and data integrity. The MAX6900ETT+T plays a crucial role in maintaining the stability of these devices by monitoring the power supply and initiating resets when necessary.

Detailed and Complete Alternative Models

1. MAX809: The MAX809 series from Maxim Integrated offers similar functionality to the MAX6900ETT+T. These microprocessor supervisory circuits provide precision voltage monitoring and reset output during power-up and power-down conditions. They are available in various package options and offer different reset threshold voltage options.

2. LTC2937: The LTC2937 from Analog Devices is another alternative microprocessor supervisory circuit. It features adjustable reset threshold voltage