MAX705ESA

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MAX705ESA

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IC SUPERVISOR 1 CHANNEL 8SOIC

  • HerstellerAnalog Devices Inc./Maxim Integrated

  • Herstellerteil #MAX705ESA

  • Paket SOIC-8

  • Auf Lager4415

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Spezifikationen

Attribut Wert
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 -40°C ~ 85°C (TA)
Mounting Type Surface Mount

Übersicht

Description

The MAX705ESA is a microprocessor supervisory circuit from Maxim Integrated designed to monitor power supplies in microprocessor systems. It ensures system reliability by providing multiple functions essential for microprocessor health, such as:
1. Reset Functionality: It generates a reset pulse during power-up, power-down, or brownout conditions to ensure the microprocessor starts in a known state.

2. Watchdog Timer: The integrated watchdog timer requires regular toggling by the microprocessor to confirm proper operation, otherwise it triggers a reset, preventing system lock-up.
3. Power-Fail Comparator: It monitors the power supply voltage and provides an early warning signal if the voltage drops below a specified threshold, allowing the microprocessor to take corrective action.
4. Manual Reset Input: It allows for an external push-button reset to be initiated by the user.
The MAX705ESA is designed for small footprint applications and operates in a wide temperature range, making it suitable for a variety of industrial and consumer applications. By integrating these functionalities, the MAX705ESA helps enhance system reliability and protect against unforeseen power issues.

Equivalent

The MAX705ESA is a microprocessor supervisory circuit with features like reset, watchdog, and battery backup. Equivalent products include:
1. MCP130/131 – Microchip Technology
2. TC1232 – Microchip Technology
3. ADM705 – Analog Devices
4. DS1232 – Dallas Semiconductor (Maxim Integrated)
5. STM1001 – STMicroelectronics
Always verify specifications, as there might be slight differences in electrical characteristics or packaging.

Features

The MAX705ESA is a microprocessor supervisory circuit designed to monitor power supplies and ensure system reliability. Key features include:
1. Voltage Monitoring: It monitors the supply voltage and provides a reset signal to the microprocessor during power-up, power-down, and brownout conditions. The reset threshold is typically 4.65V for the MAX705.
2. Manual Reset Input: This allows an external signal to trigger a reset, ensuring flexibility in system design.
3. Watchdog Timer: It includes a watchdog timer that requires periodic toggling from the microprocessor to confirm normal operation. If not reset within a specified time, it generates a reset signal.
4. Power-Fail Comparator: This feature allows monitoring of an additional power supply voltage, providing an early warning of impending power loss.
5. Low Supply Current: It is designed for low power consumption, making it suitable for battery-operated applications.
6. Small Package: The MAX705ESA is available in an 8-pin SO package, making it space-efficient.
These features make the MAX705ESA suitable for ensuring reliable microprocessor operations in various electronic applications.

Pinout

The MAX705ESA is a microprocessor supervisory circuit typically housed in an 8-pin package. Its primary functions include monitoring the supply voltage to a microprocessor and providing reset signals, among other supervisory tasks. Here’s a brief rundown of its pin functions:
1. VCC (Pin 8): Power supply input.
2. GND (Pin 4): Ground reference for all signals.
3. RESET (Pin 7): Active-low reset output.
4. RESET (Pin 6): Active-high reset output.
5. WDI (Pin 3): Watchdog input for monitoring processor activity.
6. MR (Pin 5): Manual-reset input for triggering a reset externally.
7. LOWLINE (Pin 2): Low-line output indicates a low VCC condition.
8. VOUT (Pin 1): Backup-battery output.
This device ensures reliable operation by resetting the microprocessor during power-up, power-down, and brownout conditions. Additionally, it offers a watchdog timer and battery backup functionality, making it suitable for various applications where reliability is critical.

Manufacturer

The MAX705ESA is manufactured by Maxim Integrated, which is now part of Analog Devices, Inc. Maxim Integrated was a company known for designing, manufacturing, and marketing analog and mixed-signal integrated circuits. It provided a wide range of products used in various applications including industrial, communications, consumer, and automotive markets.
In 2021, Maxim Integrated was acquired by Analog Devices, a company with a similar focus on semiconductor devices. Analog Devices is a leading global manufacturer of integrated circuits and semiconductors, specializing in high-performance analog technology, digital signal processing (DSP), and mixed-signal ICs. They supply products for a multitude of sectors including healthcare, automotive, communications, industrial, and consumer electronics. The company's expertise in signal processing solutions allows it to deliver innovative and efficient electronic products that address complex challenges in a range of applications.

Application

The MAX705ESA is a microprocessor supervisory circuit commonly used in applications requiring reliable microprocessor performance. Key application areas include:
1. Embedded Systems: Ensures microcontroller stability by providing reset functions and monitoring supply voltages.
2. Consumer Electronics: Used to maintain data integrity and prevent erratic microprocessor behavior in devices like TVs and gaming consoles.
3. Industrial Automation: Protects microcontrollers in industrial systems from power-related issues, enhancing operational reliability.
4. Automotive Systems: Supports onboard electronic systems by monitoring voltages and managing resets.
5. Networking and Telecommunications: Ensures continuous operation and data integrity in routers, switches, and other communication devices.
These areas benefit from its features like power-on reset, manual reset input, and watchdog timer.

Package

The MAX705ESA is a microprocessor supervisory circuit that comes in an 8-pin SOIC (Small Outline Integrated Circuit) package. This package type is compact and commonly used for surface-mount technology applications.

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