MAX6421US46+T

Basic Information Overview

Category: Integrated Circuit (IC)
Use: Voltage Supervisor
Characteristics: Low-power, Precision, Adjustable Thresholds
Package: SOT23-6
Essence: Monitors and controls the voltage levels in electronic systems
Packaging/Quantity: Tape and Reel, 3000 units per reel

Specifications

Supply Voltage Range: 1.5V to 5.5V
Operating Temperature Range: -40°C to +85°C
Threshold Voltage Options: 2.93V, 3.08V, 3.63V, 4.38V, 4.63V
Quiescent Current: 1µA (typical)
Reset Timeout Period: 140ms (typical)

Detailed Pin Configuration

The MAX6421US46+T has a total of six pins arranged as follows: 1. GND: Ground connection 2. RESET: Active-low reset output 3. MR: Manual reset input 4. TH: Threshold voltage selection input 5. VCC: Positive supply voltage 6. NC: No connection

Functional Features

Voltage Monitoring: The MAX6421US46+T monitors the supply voltage and generates a reset signal when it falls below a specified threshold.
Adjustable Thresholds: The device offers multiple threshold voltage options, allowing flexibility in setting the desired voltage level for triggering the reset signal.
Precision Operation: With low quiescent current and high accuracy, the MAX6421US46+T ensures reliable voltage monitoring without significantly impacting power consumption.
Reset Timeout: The device includes a reset timeout period to prevent false resets during power-up or transient voltage fluctuations.

Advantages and Disadvantages

Advantages: - Wide supply voltage range enables compatibility with various electronic systems. - Adjustable threshold voltage options provide customization for different applications. - Low quiescent current minimizes power consumption. - Precision operation ensures accurate voltage monitoring.

Disadvantages: - Limited number of threshold voltage options may not cater to all specific requirements. - SOT23-6 package may be challenging to solder for some users.

Working Principles

The MAX6421US46+T operates by comparing the supply voltage with the selected threshold voltage. When the supply voltage drops below the threshold, the device generates an active-low reset signal. This signal can be used to initiate system resets or trigger other actions as required. The reset timeout period prevents false resets during power-up or transient voltage fluctuations.

Detailed Application Field Plans

The MAX6421US46+T finds applications in various electronic systems where reliable voltage monitoring is crucial. Some potential application fields include: 1. Battery-Powered Devices: Ensuring proper shutdown or warning when battery voltage drops below a safe level. 2. Microcontroller Systems: Resetting the microcontroller when the supply voltage falls outside the acceptable range. 3. Industrial Control Systems: Monitoring power supply voltages to prevent damage to sensitive components. 4. Automotive Electronics: Protecting critical circuits from voltage dips or spikes.

Detailed and Complete Alternative Models

MAX6422US46+T: Similar to MAX6421US46+T but with different threshold voltage options.
MAX6423US46+T: Voltage supervisor with adjustable threshold voltage and additional features like manual reset input.
MAX6424US46+T: Dual voltage supervisor with independent threshold voltage settings for two separate supplies.

(Note: These alternative models are provided for reference and may have different specifications and pin configurations. Please refer to the respective datasheets for detailed information.)

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Seznam 10 běžných otázek a odpovědí souvisejících s aplikací MAX6421US46+T v technických řešeních

Sure! Here are 10 common questions and answers related to the application of MAX6421US46+T in technical solutions:

Q1: What is MAX6421US46+T? A1: MAX6421US46+T is a specific model of voltage supervisor IC (Integrated Circuit) manufactured by Maxim Integrated. It provides power supply monitoring and reset generation functions.

Q2: What is the purpose of using MAX6421US46+T in technical solutions? A2: The main purpose of using MAX6421US46+T is to monitor the voltage levels of power supplies and generate reset signals when necessary, ensuring reliable operation of electronic systems.

Q3: How does MAX6421US46+T monitor power supply voltages? A3: MAX6421US46+T monitors power supply voltages by comparing them to a preset threshold. If the voltage falls below the threshold, it triggers a reset signal.

Q4: Can MAX6421US46+T monitor multiple power supplies simultaneously? A4: Yes, MAX6421US46+T can monitor up to four power supplies simultaneously, making it suitable for applications with multiple voltage rails.

Q5: What is the voltage range that MAX6421US46+T can monitor? A5: MAX6421US46+T can monitor voltage levels ranging from 0.4V to 5.5V, which covers a wide range of typical power supply voltages.

Q6: Can MAX6421US46+T generate different types of reset signals? A6: Yes, MAX6421US46+T can generate both active-low and active-high reset signals, providing flexibility for different system requirements.

Q7: Is MAX6421US46+T capable of adjusting the voltage threshold for monitoring? A7: No, MAX6421US46+T has a fixed voltage threshold set during manufacturing. If adjustable thresholds are required, other models or external components may be needed.

Q8: Can MAX6421US46+T tolerate voltage transients or noise on the power supply lines? A8: Yes, MAX6421US46+T is designed to tolerate voltage transients and noise within specified limits, ensuring reliable operation in real-world conditions.

Q9: What is the typical operating current consumption of MAX6421US46+T? A9: The typical operating current consumption of MAX6421US46+T is very low, usually in the microampere range, making it suitable for power-sensitive applications.

Q10: Are there any specific application notes or reference designs available for MAX6421US46+T? A10: Yes, Maxim Integrated provides application notes and reference designs that can help engineers understand and implement MAX6421US46+T in their technical solutions effectively.

Please note that the answers provided here are general and may vary depending on the specific requirements and datasheet of MAX6421US46+T. It is always recommended to refer to the official documentation and consult with the manufacturer for accurate and up-to-date information.