MAX6831YGUT+T

Product Overview

• Category: Integrated Circuit (IC)
• Use: Power Supply Supervisor
• Characteristics: Low-Power, Single/Dual Voltage Monitoring, Adjustable Reset Timeout, Manual Reset Input, Watchdog Timer, Active-Low Push-Pull Reset Output, Small Package Size
• Package: 6-pin SOT23
• Essence: The MAX6831YGUT+T is a power supply supervisor IC designed to monitor voltage levels and provide reset signals in various electronic systems.
• Packaging/Quantity: Tape and Reel, 3000 units per reel

Specifications

• Supply Voltage Range: 1.6V to 5.5V
• Reset Threshold Voltage Options: 2.5V, 3.0V, 3.3V, 5.0V
• Reset Timeout Period: Adjustable from 1ms to 640ms
• Manual Reset Input: Active-Low
• Watchdog Timer: Programmable timeout period
• Reset Output Type: Active-Low Push-Pull
• Operating Temperature Range: -40°C to +85°C

Pin Configuration

The MAX6831YGUT+T has the following pin configuration:

1. GND: Ground
2. MR: Manual Reset Input
3. RESET: Reset Output
4. VCC: Positive Supply Voltage
5. TH: Threshold Voltage Selection
6. WD: Watchdog Timer Input

Functional Features

• Monitors the supply voltage and generates a reset signal when it falls below the specified threshold.
• Provides an adjustable reset timeout period to ensure proper system initialization.
• Includes a manual reset input for external reset control.
• Incorporates a watchdog timer to detect system malfunctions and initiate a reset if necessary.
• Offers an active-low push-pull reset output for driving external circuitry.

Advantages and Disadvantages

Advantages

• Low-power operation, suitable for battery-powered applications.
• Wide supply voltage range allows compatibility with various systems.
• Adjustable reset timeout period provides flexibility in system initialization.
• Small package size enables space-saving designs.
• Active-low push-pull reset output ensures reliable signal transmission.

Disadvantages

• Limited to 6-pin SOT23 package, which may not be suitable for all applications.
• Requires careful consideration of threshold voltage selection to match specific system requirements.

Working Principles

The MAX6831YGUT+T operates by continuously monitoring the supply voltage using an internal voltage reference. When the voltage falls below the selected threshold level, the IC generates a reset signal on the RESET pin. The reset timeout period can be adjusted to allow sufficient time for the system to stabilize before releasing the reset signal.

The manual reset input (MR) allows external control over the reset function. When MR is pulled low, the IC initiates a reset regardless of the supply voltage level. This feature is useful during system testing or when a manual reset is required.

The watchdog timer (WD) monitors the system's activity and must be periodically triggered to prevent it from timing out. If the watchdog timer is not triggered within the programmed timeout period, the IC generates a reset signal to restart the system.

Detailed Application Field Plans

The MAX6831YGUT+T is commonly used in various electronic systems where reliable power supply monitoring and reset functionality are essential. Some potential application fields include:

1. Microcontrollers and Microprocessors
2. Embedded Systems
3. Industrial Control Systems
4. Automotive Electronics
5. Medical Devices
6. Consumer Electronics

Detailed and Complete Alternative Models

1. MAX6816: Single Voltage Monitoring, Fixed Reset Timeout, Active-Low Open-Drain Reset Output, 4-pin SOT23 package.
2. MAX6820: Dual Voltage Monitoring, Adjustable Reset Timeout, Active-Low Push-Pull Reset Output, 8-pin SOIC package.
3. MAX6835: Triple Voltage Monitoring, Programmable Reset Timeout, Active-Low Open-Drain Reset Output, 10-pin TDFN package.

These alternative models offer different features and package options to cater to specific application requirements.

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