MAX6423US27+T

Product 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: 1.6V to 5.5V
• Reset Threshold Voltage: 2.7V
• Reset Timeout Period: 140ms
• Quiescent Current: 1µA (typical)
• Operating Temperature Range: -40°C to +85°C

Detailed Pin Configuration

The MAX6423US27+T has a total of five pins:

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

Functional Features

• Low-power consumption: The MAX6423US27+T operates with a quiescent current of only 1µA, making it suitable for battery-powered applications.
• Precision voltage monitoring: It accurately monitors the supply voltage and triggers a reset signal when it falls below the preset threshold voltage.
• Manual reset capability: The MR pin allows for manual resetting of the device, providing flexibility in system control.

Advantages and Disadvantages

Advantages: - Low-power operation extends battery life in portable devices. - Precise voltage monitoring ensures reliable system operation. - Manual reset feature offers additional control options.

Disadvantages: - Limited supply voltage range may not be suitable for all applications. - Fixed reset timeout period may not be adjustable for specific requirements.

Working Principles

The MAX6423US27+T is designed to monitor the voltage level of a power supply. It compares the supply voltage with a preset threshold voltage (2.7V in this case). When the supply voltage falls below the threshold, the device generates an active-low reset signal. This signal can be used to reset microcontrollers, digital logic circuits, or other system components.

The device continuously monitors the supply voltage and holds the reset signal until the voltage rises above the threshold and remains stable for a specified timeout period (140ms). The manual reset input (MR) allows for immediate resetting of the device, overriding the voltage monitoring function.

Detailed Application Field Plans

The MAX6423US27+T finds applications in various fields, including:

1. Battery-powered devices: It ensures proper operation by monitoring the battery voltage and initiating a reset if necessary.
2. Microcontroller systems: It provides a reliable reset signal to ensure correct startup and operation of microcontrollers.
3. Industrial control systems: It helps maintain system integrity by monitoring power supply voltages and preventing erratic behavior due to voltage fluctuations.

Detailed and Complete Alternative Models

1. MAX6424US27+T: Similar to MAX6423US27+T but with a different reset threshold voltage (2.8V).
2. MAX6425US27+T: Similar to MAX6423US27+T but with a different reset timeout period (280ms).
3. MAX6426US27+T: Similar to MAX6423US27+T but with a different package (SOT23-6).

These alternative models offer similar functionality with slight variations to cater to specific application requirements.

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