MAX6426UK42+T

Basic Information Overview

• Category: Integrated Circuit (IC)
• Use: Voltage Supervisor
• Characteristics: Low-power, precision voltage monitoring
• Package: SOT23-5
• 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: 1.8V to 5.5V
• Reset Threshold Voltage: 4.2V
• Reset Timeout Period: 140ms
• Operating Temperature Range: -40°C to +85°C

Detailed Pin Configuration

The MAX6426UK42+T has a total of 5 pins: 1. GND: Ground connection 2. RESET: Output pin for reset signal 3. MR: Manual reset input pin 4. VCC: Positive power supply connection 5. TH: Threshold voltage setting pin

Functional Features

• Low-power consumption: The MAX6426UK42+T operates at low power levels, making it suitable for battery-powered applications.
• Precision voltage monitoring: It accurately monitors the voltage level of the power supply, ensuring reliable operation of the connected system.
• Reset signal generation: When the voltage falls below the preset threshold, the MAX6426UK42+T generates a reset signal to initiate system reset or shutdown.

Advantages and Disadvantages

Advantages: - Compact package size allows for space-efficient designs. - Wide supply voltage range enables compatibility with various power sources. - Precise voltage monitoring ensures system stability.

Disadvantages: - Limited timeout period may not be suitable for applications requiring longer reset delays. - Manual reset input pin may require additional external components for proper functionality.

Working Principles

The MAX6426UK42+T operates by continuously monitoring the voltage level at the TH pin. When the voltage falls below the threshold set by an external resistor divider connected to the TH pin, the RESET pin is pulled low, generating a reset signal. The reset signal remains active until the voltage rises above the threshold or a manual reset is applied to the MR pin.

Detailed Application Field Plans

The MAX6426UK42+T finds applications in various fields, including: 1. Battery-powered devices: It ensures proper system operation by monitoring the battery voltage and initiating a reset when necessary. 2. Microcontroller systems: The voltage supervisor helps maintain system integrity by resetting the microcontroller during power supply fluctuations. 3. Industrial automation: It provides reliable voltage monitoring for critical control systems, preventing malfunctions due to power supply issues.

Detailed and Complete Alternative Models

1. MAX6426UK42: Similar to MAX6426UK42+T but without tape and reel packaging.
2. MAX6426UK42+T/V+: Variant with extended operating temperature range (-40°C to +125°C).
3. MAX6426UK42+T/WD: Wide supply voltage range version (1.8V to 16V).

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