MAX641ACPA

Basic Information Overview

• Category: Integrated Circuit (IC)
• Use: Voltage Monitor and Reset Circuit
• Characteristics: Low-power, Precision, Adjustable Threshold Voltage
• Package: 8-pin PDIP (Plastic Dual In-line Package)
• Essence: Monitors the voltage level of a power supply and generates a reset signal when the voltage falls below a certain threshold.
• Packaging/Quantity: Tube packaging, 25 pieces per tube.

Specifications

• Supply Voltage Range: 1.2V to 5.5V
• Threshold Voltage Range: 1.25V to 5V
• Quiescent Current: 10µA (typical)
• Operating Temperature Range: -40°C to +85°C

Detailed Pin Configuration

1. GND: Ground connection
2. VCC: Positive supply voltage input
3. MR: Manual Reset input
4. RESET: Active-low reset output
5. TH: Threshold voltage adjustment pin
6. CT: Capacitor connection for reset delay time
7. NC: No Connection
8. VCC: Positive supply voltage input

Functional Features

• Monitors the voltage level of a power supply.
• Generates a reset signal when the voltage falls below the set threshold.
• Adjustable threshold voltage allows customization for different applications.
• Provides a manual reset option through the MR pin.
• Offers a reset delay time adjustment using an external capacitor.

Advantages

• Low-power consumption ensures minimal impact on overall system energy efficiency.
• Precision monitoring helps prevent malfunctions caused by low voltage conditions.
• Adjustable threshold voltage accommodates various power supply requirements.
• Manual reset capability allows for system restarts when needed.
• Reset delay time adjustment enhances flexibility in timing control.

Disadvantages

• Limited operating temperature range may restrict usage in extreme environments.
• 8-pin package may not be suitable for space-constrained applications.
• Lack of built-in hysteresis may result in potential oscillation near the threshold voltage.

Working Principles

The MAX641ACPA is designed to monitor the voltage level of a power supply. It compares the supply voltage with an internally set threshold voltage. When the supply voltage falls below the threshold, the reset output is activated, indicating a low voltage condition. The threshold voltage can be adjusted using an external resistor connected to the TH pin. The MR pin allows for manual resetting of the circuit. The CT pin, when connected to an external capacitor, determines the reset delay time.

Detailed Application Field Plans

The MAX641ACPA finds applications in various electronic systems where voltage monitoring and reset functionality are crucial. Some potential application fields include: 1. Microcontrollers and microprocessors 2. Embedded systems 3. Power management circuits 4. Battery-powered devices 5. Industrial control systems

Detailed and Complete Alternative Models

1. MAX642ACSA: SOT23-8 package, adjustable threshold voltage, push-pull reset output.
2. MAX643ACPA: 8-pin PDIP package, fixed threshold voltage options, active-high reset output.
3. MAX644ACPA: 8-pin PDIP package, adjustable threshold voltage, open-drain reset output.

(Note: These alternative models are just a few examples; there are several other alternatives available in the market.)

This entry provides an overview of the MAX641ACPA, including its basic information, specifications, pin configuration, functional features, advantages, disadvantages, working principles, application field plans, and alternative models. With its voltage monitoring and reset capabilities, this IC offers valuable support in ensuring stable and reliable operation of electronic systems.