MAX6420UK45+T

Basic Information Overview

• Category: Integrated Circuit (IC)
• Use: Voltage Supervisor
• Characteristics: Low-power, Precision, Adjustable Thresholds
• Package: SOT23-5
• Essence: Monitors and controls the voltage levels in electronic systems
• Packaging/Quantity: Tape and Reel, 3000 units per reel

Specifications

• Supply Voltage Range: 1.6V to 5.5V
• Operating Temperature Range: -40°C to +85°C
• Threshold Voltage Options: Adjustable from 0.4V to 4.9V in 100mV steps
• Quiescent Current: 3µA (typical)

Detailed Pin Configuration

The MAX6420UK45+T has a SOT23-5 package with the following pin configuration:

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Pin 1: GND (Ground) Pin 2: RESET (Reset Output) Pin 3: TH (Threshold Input) Pin 4: MR (Manual Reset Input) Pin 5: VCC (Supply Voltage)

Functional Features

• Monitors the supply voltage and generates a reset signal when it falls below a specified threshold.
• Provides an adjustable threshold voltage, allowing customization for different applications.
• Includes a manual reset input for external system control.
• Low quiescent current consumption ensures minimal power usage.

Advantages and Disadvantages

Advantages: - Wide supply voltage range enables compatibility with various systems. - Adjustable threshold voltage provides flexibility in voltage monitoring. - Low quiescent current minimizes power consumption. - Small package size allows for space-efficient integration into electronic devices.

Disadvantages: - Limited number of threshold voltage options may not suit all applications. - Lack of built-in hysteresis may result in potential voltage fluctuations during threshold crossing.

Working Principles

The MAX6420UK45+T is a voltage supervisor IC that monitors the supply voltage of an electronic system. It compares the input voltage with an internally set threshold voltage. When the supply voltage falls below the threshold, the IC generates a reset signal to initiate system shutdown or recovery procedures. The threshold voltage can be adjusted using the TH pin, allowing customization for specific voltage requirements.

Detailed Application Field Plans

The MAX6420UK45+T finds applications in various fields where precise voltage monitoring and control are essential. Some potential application areas include: 1. Battery-powered devices: Ensures safe operation by monitoring battery voltage and initiating appropriate actions when it drops below a critical level. 2. Embedded systems: Protects sensitive components from voltage fluctuations and ensures reliable operation. 3. Industrial automation: Monitors power supply voltages in control systems, preventing damage due to voltage instability. 4. Automotive electronics: Safeguards critical systems by monitoring voltage levels and triggering necessary actions in case of anomalies.

Detailed and Complete Alternative Models

• MAX6421UK26+T: Similar functionality with adjustable threshold voltage range of 0.6V to 2.5V.
• MAX6422UK29+T: Adjustable threshold voltage range of 0.9V to 2.9V with additional hysteresis feature.
• MAX6423UK31+T: Adjustable threshold voltage range of 1.1V to 3.1V with built-in manual reset timeout.

Note: These alternative models offer similar voltage supervisory functions but differ in threshold voltage ranges and additional features.

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