MAX6419UK31+T

Product Overview

• Category: Integrated Circuit (IC)
• Use: Voltage Monitor and Reset Circuit
• Characteristics: Low-power, precision voltage monitoring, reset generation
• Package: SOT23-5
• Essence: Monitors supply voltage and generates a reset signal when the voltage falls below a specified threshold
• Packaging/Quantity: Tape and Reel, 3000 units per reel

Specifications

• Supply Voltage Range: 1.6V to 5.5V
• Threshold Voltage Options: 2.93V, 3.08V, 3.45V, 4.63V
• Reset Timeout Period: 140ms (typical)
• Quiescent Current: 1µA (typical)
• Operating Temperature Range: -40°C to +85°C

Detailed Pin Configuration

The MAX6419UK31+T has a total of five pins:

1. GND: Ground connection
2. MR: Manual Reset Input
3. RESET: Active-Low Reset Output
4. VCC: Positive Supply Voltage
5. TH: Threshold Voltage Selection

Functional Features

• Monitors the supply voltage continuously
• Generates a reset signal when the voltage falls below the selected threshold
• Provides manual reset capability through the MR pin
• Low quiescent current consumption for power-sensitive applications
• Wide operating temperature range for versatile usage scenarios

Advantages and Disadvantages

Advantages

• Precise voltage monitoring ensures reliable system operation
• Low-power design extends battery life in portable devices
• Small package size allows for space-constrained applications
• Manual reset input provides flexibility in system control

Disadvantages

• Limited threshold voltage options may not suit all voltage monitoring requirements
• Lack of adjustable timeout period may not be suitable for all applications
• SOT23-5 package may require additional handling precautions during assembly

Working Principles

The MAX6419UK31+T operates by continuously monitoring the supply voltage connected to the VCC pin. When the voltage falls below the selected threshold voltage, the circuit generates an active-low reset signal on the RESET pin. This signal remains active until the supply voltage rises above the threshold and a timeout period elapses.

The manual reset input (MR) allows the user to force a reset condition regardless of the monitored voltage level. The quiescent current consumption is minimal, making it suitable for battery-powered devices.

Detailed Application Field Plans

The MAX6419UK31+T finds applications in various fields, including:

1. Battery-powered devices: Provides voltage monitoring and reset functionality to ensure proper operation and prevent data loss.
2. Microcontroller systems: Protects the system from erratic behavior caused by low supply voltage conditions.
3. Industrial automation: Monitors power supply integrity and initiates system resets when necessary to maintain reliable operation.
4. Automotive electronics: Ensures stable operation of critical components by monitoring supply voltage and generating resets if needed.

Detailed and Complete Alternative Models

1. MAX6419UK31+T: 2.93V threshold voltage option, SOT23-5 package
2. MAX6419UK31+T1: 3.08V threshold voltage option, SOT23-5 package
3. MAX6419UK31+T2: 3.45V threshold voltage option, SOT23-5 package
4. MAX6419UK31+T3: 4.63V threshold voltage option, SOT23-5 package

These alternative models provide different threshold voltage options to suit specific voltage monitoring requirements while maintaining the same package and pin configuration.

In conclusion, the MAX6419UK31+T is a voltage monitor and reset circuit IC that offers precise monitoring, low-power operation, and manual reset capability. It finds applications in various fields, including battery-powered devices, microcontroller systems, industrial automation, and automotive electronics. The product's specifications, pin configuration, functional features, advantages, disadvantages, working principles, application field plans, and alternative models make it a versatile choice for voltage monitoring and reset applications.