MAX6314US29D3+T

Basic Information Overview

• Category: Integrated Circuit (IC)
• Use: Voltage Monitor and Reset Circuit
• Characteristics:
  • Monitors the voltage level of a power supply and generates a reset signal when the voltage falls below a specified threshold.
  • Provides a reliable way to ensure proper system initialization and prevent data corruption or erratic behavior during power-up or brownout conditions.
• Package: SOT-23-5
• Essence: Voltage monitoring and reset functionality in a compact package.
• Packaging/Quantity: Tape and Reel, 3000 units per reel.

Specifications

• Supply Voltage Range: 1.6V to 5.5V
• Threshold Voltage Options: 2.93V, 2.63V, 2.32V, 2.01V, 1.71V, 1.40V
• Reset Timeout Period: Adjustable from 1ms to 1600ms
• Operating Temperature Range: -40°C to +85°C

Detailed Pin Configuration

1. GND: Ground connection
2. MR: Manual Reset input (active-low)
3. VCC: Power supply input
4. RESET: Reset output (active-low)
5. TH: Threshold voltage selection pin

Functional Features

• Voltage Monitoring: Monitors the input voltage and compares it with the selected threshold voltage.
• Reset Generation: Generates a reset signal when the monitored voltage falls below the threshold.
• Manual Reset: Allows for manual reset by asserting a low signal on the MR pin.
• Adjustable Timeout: The reset timeout period can be adjusted using an external capacitor.
• Power-On Reset Delay: Ensures a stable reset signal is generated after power-up.

Advantages

• Compact Size: The SOT-23-5 package offers a small footprint, making it suitable for space-constrained applications.
• Wide Supply Voltage Range: Can operate with a wide range of supply voltages, enhancing versatility.
• Adjustable Timeout Period: Allows customization of the reset timeout to suit specific system requirements.
• Low Power Consumption: Consumes minimal power during operation, contributing to energy efficiency.

Disadvantages

• Limited Threshold Voltage Options: The available threshold voltage options may not cover all possible voltage monitoring requirements.
• Lack of Built-in Hysteresis: The IC does not include built-in hysteresis, which could be desirable in certain applications.

Working Principles

The MAX6314US29D3+T operates by continuously monitoring the input voltage using an internal voltage comparator. When the voltage falls below the selected threshold voltage, the reset output is asserted low, indicating a reset condition. The reset signal remains active until the voltage rises above the threshold and the reset timeout period elapses. The manual reset input allows for immediate reset assertion when required.

Detailed Application Field Plans

• Embedded Systems: Provides reliable power-on reset functionality for microcontrollers, DSPs, and other embedded systems.
• Industrial Control Systems: Ensures proper initialization and prevents data corruption in industrial control systems.
• Consumer Electronics: Protects sensitive electronics from erratic behavior during power-up or brownout conditions.
• Automotive Electronics: Enhances the reliability of automotive electronic systems by providing voltage monitoring and reset capabilities.

Detailed and Complete Alternative Models

• MAX6315US29D3+T
• MAX6316US29D3+T
• MAX6317US29D3+T
• MAX6318US29D3+T

(Note: These alternative models offer similar voltage monitoring and reset functionality but may have different specifications or package options.)

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