MAX705CPA

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MAX705CPA

+BOM

IC SUPERVISOR 1 CHANNEL 8DIP

  • ManufacturerAnalog Devices Inc./Maxim Integrated

  • Mfr. Part #MAX705CPA

  • Package PDIP-8

  • In Stock1293

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Specifications

Attribute Value
Package / Case Tube,Tube
Part Status Obsolete
Type Simple Reset/Power-On Reset
Number of Voltages Monitored 1
Voltage - Threshold 4.65V
Output Push-Pull, Totem Pole
Reset Active Low
Reset Timeout 140ms Minimum
Operating Temperature 0°C ~ 70°C (TA)
Mounting Type Through Hole

Overview

Description

The MAX705CPA is a microprocessor supervisory circuit designed to monitor the power supply in microprocessor systems. It provides several key functions to ensure the reliability and stability of these systems, including:
1. Reset Function: It generates a reset signal whenever the monitored supply voltage drops below a preset threshold, ensuring the microprocessor starts in a known state.
2. Watchdog Timer: This feature requires the microprocessor to regularly send a pulse to the MAX705CPA. If the pulse is not received within a specified time, the device generates a reset signal, indicating the microprocessor may have failed.
3. Voltage Monitoring: The MAX705CPA monitors the supply voltage and includes a manual reset input for user-initiated resets.
4. Low Supply Current: Designed for low power consumption, it is suitable for battery-operated applications.
5. Package and Compatibility: It comes in an 8-pin DIP package, making it easy to integrate into existing designs.
Overall, the MAX705CPA is a robust solution for maintaining system integrity in the event of power fluctuations or system failures.

Equivalent

The MAX705CPA is a microprocessor supervisory circuit. Equivalent products include the:
1. ADM705ARZfrom Analog Devices
2. MCP130T-450I/TO from Microchip Technology
3. TL7705ACP from Texas Instruments
4. DS1232 from Maxim Integrated
These alternatives offer similar functionality, such as monitoring voltage levels and providing reset signals, but always check the datasheets for specific compatibility regarding package type, pin configuration, and electrical characteristics.

Features

The MAX705CPA is a microprocessor supervisory circuit designed to monitor power supplies in digital systems. Key features include:
1. Power Supply Monitoring: It monitors the supply voltage and provides a reset signal when the voltage falls below a predefined threshold. This ensures reliable operation by preventing erroneous states during power-up, power-down, or brownout conditions.
2. Reset Output: The device provides an active-low reset output, which is asserted when the monitored voltage is below the threshold or during manual reset inputs.
3. Manual Reset Input: It includes a manual reset input, allowing the user to initiate a reset externally.
4. Watchdog Timer: The MAX705CPA includes an independent watchdog timer that requires a periodic pulse from the microprocessor to indicate proper operation, thereby preventing system lockup.
5. Low Power Consumption: It is designed for low power consumption, making it suitable for battery-operated systems.
6. Small Package: The device comes in a compact 8-pin DIP, which is advantageous for space-constrained applications.
These features make the MAX705CPA ideal for ensuring system reliability in various digital applications.

Pinout

The MAX705CPA is an integrated circuit designed for microprocessor supervisory applications. It typically comes in an 8-pin DIP (Dual In-line Package). Its primary functions include monitoring the power supply for microprocessors and ensuring safe operation by providing the following features:
1. Reset Output: It generates a reset signal for the microprocessor during power-up, power-down, and a low voltage condition.
2. Manual Reset Input: Allows for manual triggering of a reset.
3. Watchdog Timer: Helps in recovering the microprocessor from malfunction by triggering a reset if the microcontroller does not perform a certain task within a set time frame.
4. Power-fail Comparator: Monitors the power supply voltage and generates a signal if it falls below a predefined threshold.
These features help in maintaining the stability and reliability of microprocessor-based systems by preventing erratic operations.

Manufacturer

The MAX705CPA is manufactured by Maxim Integrated, which is a company known for designing, manufacturing, and selling analog and mixed-signal integrated circuits. Maxim Integrated is recognized for its wide range of semiconductor products used across a variety of applications including industrial, communications, consumer, and automotive markets. The company focuses on providing solutions that enhance the efficiency and performance of electronic devices. As of 2021, Maxim Integrated became a part of Analog Devices, Inc. (ADI) after a merger. Analog Devices is a multinational semiconductor company specializing in data conversion and signal processing technology.

Application

The MAX705CPA is a microprocessor supervisory circuit designed for monitoring power supplies in digital systems and providing reliable reset signals. Key application areas include:
1. Embedded Systems: Ensures microcontrollers operate correctly by monitoring voltage levels and resetting during power fluctuations.
2. Consumer Electronics: Protects devices like televisions and gaming consoles from faulty resets and power failures.
3. Industrial Control Systems: Offers reliability in harsh environments by preventing system crashes.
4. Automotive Electronics: Monitors and manages power in automotive applications to enhance safety and performance.
5. Networking Equipment: Used for reliable operation of routers and switches by preventing data corruption during power interruptions.
Its versatile functionality makes it ideal for any application requiring precise power supervision and reset control.

Package

The MAX705CPA is in an 8-pin plastic dual in-line package (PDIP).

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