MAX6381LT26D3+T

Product Overview

• Category: Integrated Circuit (IC)
• Use: Voltage Monitor and Reset Circuit
• Characteristics: Low-power, precision voltage monitoring, adjustable threshold, small package size
• Package: SOT-23-3
• Essence: The MAX6381LT26D3+T is a voltage monitor and reset circuit designed for low-power applications. It provides accurate monitoring of the power supply voltage and generates a reset signal when the voltage falls below a certain threshold.
• Packaging/Quantity: The MAX6381LT26D3+T is available in tape and reel packaging with 3000 units per reel.

Specifications

• Supply Voltage Range: 1.6V to 5.5V
• Threshold Voltage Options: Adjustable from 1.2V to 4.63V in 100mV steps
• Reset Timeout Period: Fixed at 140ms
• Operating Temperature Range: -40°C to +85°C
• Quiescent Current: 1.5µA (typical)

Pin Configuration

The MAX6381LT26D3+T has a simple three-pin configuration:

• Pin 1: GND (Ground)
• Pin 2: VCC (Power Supply)
• Pin 3: RESET (Reset Output)

Functional Features

• Accurate voltage monitoring: The MAX6381LT26D3+T ensures precise monitoring of the power supply voltage, allowing for reliable detection of undervoltage conditions.
• Adjustable threshold: The device offers an adjustable threshold voltage, allowing users to set the desired voltage level at which the reset signal is generated.
• Small package size: The SOT-23-3 package makes the MAX6381LT26D3+T suitable for space-constrained applications.
• Low-power operation: With a quiescent current of only 1.5µA, the device minimizes power consumption in battery-powered systems.

Advantages and Disadvantages

Advantages: - Accurate voltage monitoring - Adjustable threshold voltage - Small package size - Low-power operation

Disadvantages: - Fixed reset timeout period may not be suitable for all applications - Limited number of threshold voltage options

Working Principles

The MAX6381LT26D3+T operates by continuously monitoring the power supply voltage. When the voltage falls below the set threshold, the reset output is activated, indicating an undervoltage condition. The reset signal remains active for a fixed timeout period of 140ms, allowing the system to perform a proper reset sequence.

Detailed Application Field Plans

The MAX6381LT26D3+T finds applications in various fields, including:

1. Battery-powered devices: The low-power operation and adjustable threshold make it suitable for monitoring battery voltage in portable electronics.
2. Industrial control systems: The accurate voltage monitoring ensures reliable operation of critical components in industrial control systems.
3. Automotive electronics: The small package size and precise voltage monitoring make it ideal for automotive applications where space is limited.

Detailed and Complete Alternative Models

1. MAX6381XR26D3+T: Similar to the MAX6381LT26D3+T, but with a higher operating temperature range (-40°C to +125°C).
2. MAX6381LT29D3+T: Offers a different threshold voltage range (adjustable from 1.8V to 4.63V in 100mV steps) while maintaining other specifications.
3. MAX6381LT30D3+T: Provides a wider supply voltage range (1.6V to 6.0V) compared to the MAX6381LT26D3+T.

These alternative models offer similar functionality with slight variations in specifications to cater to different application requirements.

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