MAX6728KAZWD3+T

Product Overview

• Category: Integrated Circuit (IC)
• Use: Voltage Monitoring and Resetting
• Characteristics: Low-power, Precision, Programmable Delay, Watchdog Timer
• Package: WLP (Wafer Level Package)
• Essence: Voltage monitoring and resetting IC with programmable delay and watchdog timer functionality.
• Packaging/Quantity: Tape and Reel, 3000 units per reel.

Specifications

• Supply Voltage Range: 1.6V to 5.5V
• Operating Temperature Range: -40°C to +85°C
• Reset Threshold Options: 2.5V, 3.0V, 3.3V, 5.0V
• Programmable Reset Time Delay: 1ms to 64000ms
• Watchdog Timer Timeout Period: 1.6s, 6.4s, 25.6s, 102.4s
• Quiescent Current: 1µA (typical)

Pin Configuration

The MAX6728KAZWD3+T has a total of 6 pins:

1. VCC: Power supply input pin.
2. GND: Ground reference pin.
3. MR: Manual reset input pin.
4. RESET: Active-low reset output pin.
5. WDOUT: Watchdog timer output pin.
6. DELAY: Programmable delay control pin.

Functional Features

1. Voltage Monitoring: The MAX6728KAZWD3+T monitors the supply voltage and asserts a reset signal when it falls below the programmed threshold.
2. Programmable Delay: It allows users to set a specific delay time before asserting the reset signal after the voltage drops below the threshold.
3. Watchdog Timer: The IC includes a watchdog timer that generates a reset signal if the system fails to toggle the WDOUT pin within the specified timeout period.
4. Manual Reset: The MR pin can be used to manually assert a reset signal, overriding the voltage monitoring and watchdog timer functionality.

Advantages

• Low-power consumption makes it suitable for battery-powered applications.
• Precision voltage monitoring ensures reliable system operation.
• Programmable delay allows customization based on specific application requirements.
• Watchdog timer enhances system reliability by detecting and recovering from software or hardware failures.
• Small form factor WLP package saves board space.

Disadvantages

• Limited number of available reset threshold options.
• Not suitable for high-voltage applications (above 5.5V).
• Requires external components for proper operation.

Working Principles

The MAX6728KAZWD3+T operates by continuously monitoring the supply voltage using an internal voltage reference. When the voltage falls below the programmed threshold, the IC asserts a reset signal. The programmable delay feature allows users to set a specific time before the reset signal is asserted. Additionally, the watchdog timer monitors the WDOUT pin and generates a reset signal if it does not receive a toggling signal within the specified timeout period.

Application Field Plans

The MAX6728KAZWD3+T finds applications in various fields, including:

1. Embedded Systems: Used to monitor and reset microcontrollers, ensuring reliable operation.
2. Industrial Automation: Provides voltage monitoring and resetting capabilities for control systems and PLCs.
3. Consumer Electronics: Ensures proper functioning of electronic devices by monitoring the power supply voltage.
4. Automotive Electronics: Used in automotive systems to monitor critical voltages and initiate resets when necessary.
5. Medical Devices: Provides voltage monitoring and resetting functions in medical equipment for patient safety.

Alternative Models

1. MAX6715UTZWD3+T: Similar voltage monitoring and resetting IC with a different package and reset threshold options.
2. MAX6730KAZWD3+T: Voltage monitoring and resetting IC with additional features like power-on reset and manual reset input.

(Note: The alternative models mentioned above are just examples and not an exhaustive list.)

This entry provides a comprehensive overview of the MAX6728KAZWD3+T, including its basic information, specifications, pin configuration, functional features, advantages, disadvantages, working principles, application field plans, and alternative models.