MAX6420UK46+ - English Editing Encyclopedia Entry

Product Overview

Category

MAX6420UK46+ belongs to the category of voltage supervisors.

Use

It is primarily used for monitoring and controlling the voltage levels in electronic circuits.

Characteristics

• Voltage supervision range: 4.6V
• Low quiescent current: 5µA (typical)
• Wide operating temperature range: -40°C to +85°C
• Small package size: SOT23-5
• RoHS compliant

Package and Quantity

The MAX6420UK46+ comes in a SOT23-5 package. It is typically sold in reels or tubes containing a specific quantity, usually specified by the manufacturer.

Specifications

• Supply Voltage Range: 1.2V to 5.5V
• Threshold Voltage: 4.6V
• Quiescent Current: 5µA (typical)
• Operating Temperature Range: -40°C to +85°C
• Output Type: Active-Low, Open-Drain
• Power-On Reset Delay: 100ms (typical)

Detailed Pin Configuration

The MAX6420UK46+ has five pins arranged as follows:

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Pin Configuration: 1. GND: Ground connection 2. RESET: Active-low reset output 3. MR: Manual reset input 4. VCC: Positive supply voltage 5. N.C.: No connection

Functional Features

1. Voltage Supervision: The MAX6420UK46+ monitors the supply voltage and generates a reset signal when it falls below the threshold voltage.
2. Active-Low Reset Output: The active-low reset output provides a signal to reset the microcontroller or other circuitry when the voltage drops below the threshold.
3. Manual Reset Input: The manual reset input allows for an external reset signal to override the voltage supervision.

Advantages and Disadvantages

Advantages

• Low quiescent current ensures minimal power consumption.
• Wide operating temperature range makes it suitable for various environments.
• Small package size enables space-saving designs.
• RoHS compliance ensures environmental friendliness.

Disadvantages

• Limited voltage supervision range may not be suitable for all applications.
• Active-low reset output may require additional circuitry for compatibility with active-high reset inputs.

Working Principles

The MAX6420UK46+ operates by continuously monitoring the supply voltage. When the voltage drops below the threshold of 4.6V, the active-low reset output is asserted, signaling a reset condition. This reset signal remains active until the voltage rises above the threshold again. The manual reset input can also be used to force a reset regardless of the voltage level.

Detailed Application Field Plans

The MAX6420UK46+ finds applications in various fields, including: 1. Battery-powered devices: It ensures proper voltage monitoring and resets in portable electronics. 2. Industrial control systems: It provides reliable voltage supervision in automation and control applications. 3. Automotive electronics: It helps maintain stable voltage levels in automotive systems, preventing malfunctions.

Detailed Alternative Models

Some alternative models that offer similar functionality to the MAX6420UK46+ include: 1. MAX6421UK46+: Offers a different threshold voltage of 4.5V. 2. MAX6422UK46+: Provides a higher threshold voltage of 4.7V. 3. MAX6423UK46+: Features a wider supply voltage range of 1.2V to 6.5V.

These alternative models can be considered based on specific application requirements and desired voltage thresholds.

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