Maxim Integrated MAX7661CSA Overview

The MAX7661CSA from Maxim Integrated is a high-performance, low-power, CMOS microprocessor (μP) supervisory circuit designed to monitor power supplies in μP and digital systems. It provides excellent circuit reliability and low cost by eliminating external components and adjustments when used with 5V-powered circuits.

Key Features

• Precision Monitoring: With a precise factory-trimmed threshold, the MAX7661CSA ensures that the system voltage is accurately monitored, providing a reliable reset output during power-up, power-down, and brownout conditions.
• Low Power Consumption: The device is optimized for low power consumption, making it ideal for battery-operated and portable applications where power efficiency is critical.
• Reset Timeout: It offers a 200ms minimum power-on reset pulse width which ensures that the system microprocessor is properly reset after power is stable.
• Voltage Sense Inputs: The MAX7661CSA includes voltage sense inputs that can be used to monitor an additional supply voltage.
• Manual Reset: A manual reset input is provided, allowing the option for an external override that can initiate a system reset.
• Compact Package: The device is available in an 8-pin SO package, which is suitable for space-constrained applications.

Applications

The MAX7661CSA is versatile and can be used in a wide range of applications, including:

• Computers and Controllers
• Battery-Powered Equipment
• Intelligent Instruments
• Embedded Systems
• Portable Devices

Technical Specifications

The MAX7661CSA operates over a wide supply voltage range and has the following technical specifications:

• Supply Voltage Range: 4.75V to 5.5V
• Operating Temperature Range: -40°C to +85°C
• Reset Threshold Voltage: Typically 4.65V at TA = +25°C
• Reset Active Timeout Period: 200ms minimum

Overall, the MAX7661CSA is an excellent choice for system designers looking for a reliable, easy-to-implement supervisory solution to enhance the safety and robustness of their power supply designs.