MAX6420UK46+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
• Adjustable Reset Threshold: 1.2V to 4.63V
• Reset Timeout Period: 140ms (typical)
• Quiescent Current: 3µA (typical)
• Operating Temperature Range: -40°C to +85°C

Detailed Pin Configuration

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

Functional Features

• Monitors the supply voltage and generates a reset signal when it falls below a certain threshold.
• Provides adjustable reset thresholds to accommodate different system requirements.
• Offers a manual reset input for immediate system restart.
• Low quiescent current consumption ensures minimal power usage.
• Small package size allows for space-efficient integration into electronic systems.

Advantages

• Precise voltage monitoring helps prevent system malfunctions or data corruption.
• Adjustable thresholds provide flexibility for various voltage level requirements.
• Low-power operation extends battery life in portable devices.
• Compact package enables easy integration into space-constrained designs.

Disadvantages

• Limited number of pins may restrict additional functionality.
• Manual reset input may require external components for proper implementation.

Working Principles

The MAX6420UK46+T is a voltage supervisor IC that continuously monitors the supply voltage of an electronic system. It compares the voltage level with an adjustable threshold set by the TH pin. When the supply voltage falls below this threshold, the RESET pin is asserted low, indicating a system reset condition. The reset signal remains active until the supply voltage rises above the threshold or a manual reset is triggered through the MR pin.

Detailed Application Field Plans

• Battery-powered devices: Ensures proper operation and prevents data loss when the battery voltage drops below a certain level.
• Microcontroller systems: Provides a reliable reset mechanism to ensure correct startup and prevent software glitches.
• Industrial control systems: Monitors power supply integrity to avoid equipment damage or malfunction during voltage fluctuations.

Detailed and Complete Alternative Models

1. MAX6421UK46+T: Similar to MAX6420UK46+T but with adjustable reset timeout period.
2. MAX6422UK46+T: Voltage supervisor IC with fixed reset threshold and adjustable reset timeout period.
3. MAX6423UK46+T: Offers multiple voltage monitoring channels with individual adjustable thresholds.

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