MAX6453UT31S+T

Product Overview

• Category: Integrated Circuit (IC)
• Use: Voltage Supervisor
• Characteristics: Low-power, high-accuracy, small package size
• Package: SOT-23-5
• Essence: Monitors the voltage level of a power supply and provides a reset signal when the voltage falls below a certain threshold.
• Packaging/Quantity: Tape and Reel, 3000 units per reel

Specifications

• Supply Voltage Range: 1.6V to 5.5V
• Reset Threshold Voltage Options: 2.93V, 3.08V, 3.15V, 3.30V, 4.38V
• Reset Timeout Period: 140ms, 280ms, 560ms, 1120ms
• Quiescent Current: 1µA (typical)
• Operating Temperature Range: -40°C to +85°C

Detailed Pin Configuration

The MAX6453UT31S+T has a total of five pins:

1. GND: Ground connection
2. RESET: Active-low reset output
3. MR: Manual reset input
4. VCC: Positive supply voltage
5. TH: Threshold voltage selection pin

Functional Features

• Monitors the voltage level of a power supply
• Provides a reset signal when the voltage falls below the selected threshold
• Manual reset option available through the MR pin
• Low quiescent current for power efficiency
• Wide operating temperature range for versatile applications

Advantages and Disadvantages

Advantages: - Small package size allows for space-saving designs - Wide supply voltage range enables compatibility with various systems - Multiple reset threshold options provide flexibility in different applications - Low quiescent current minimizes power consumption

Disadvantages: - Limited timeout period options may not suit all requirements - Manual reset input may require additional external components for proper functionality

Working Principles

The MAX6453UT31S+T operates by continuously monitoring the voltage level of the power supply connected to its VCC pin. When the voltage falls below the selected threshold, the IC asserts an active-low reset signal on the RESET pin. This signal remains active until the voltage rises above the threshold or a manual reset is triggered through the MR pin.

The IC's low quiescent current ensures minimal power consumption during normal operation, making it suitable for battery-powered applications. The wide operating temperature range allows for reliable performance in various environmental conditions.

Detailed Application Field Plans

The MAX6453UT31S+T finds applications in various fields, including:

1. Battery-Powered Devices: Provides voltage monitoring and reset functionality in portable electronics, such as smartphones, tablets, and wearables.
2. Industrial Control Systems: Ensures reliable operation by monitoring power supply voltages in industrial automation equipment, motor control systems, and PLCs.
3. Automotive Electronics: Enhances safety and reliability by monitoring critical power supply voltages in automotive applications, including engine control units, airbag systems, and infotainment systems.
4. Home Automation: Enables voltage supervision in smart home devices, ensuring stable operation and preventing data loss during power fluctuations.

Detailed and Complete Alternative Models

1. MAX6381XR26D3+: Offers similar voltage supervisor functionality with a different package (SOT-23-3) and reset timeout options.
2. MAX809REUR+: Provides voltage monitoring and reset functionality in a SOT-23-3 package with adjustable reset threshold voltage.
3. MAX6717AUKZD3+: Features a SOT-23-5 package, adjustable reset threshold voltage, and watchdog timer functionality.

These alternative models offer similar features and can be considered based on specific application requirements.

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