Overview

Features and Benefits

  • µP Over/Undervoltage Warning
  • Improved Second Source
  • Dual Comparator with Precision Internal Reference
  • 3µA Operating Current
  • 2% Threshold Accuracy (ICL7665A)
  • 1.6V to 16V Supply Voltage Range
  • On-Board Hysteresis Outputs
  • Externally Programmable Trip Points
  • Monolithic, Low-Power CMOS Design

Product Details

The ICL7665 warns microprocessors (µPs) of overvoltage and undervoltage conditions. It draws a typical operating current of only 3µA. The trip points and hysteresis of the two voltage detectors are individually programmed via external resistors to any voltage greater than 1.3V. The ICL7665 will operate from any supply voltage in the 1.6V to 16V range, while monitoring voltages from 1.3V to several hundred volts. The Maxim ICL7665A is an improved version with a 2%-accurate VSET1 threshold and guaranteed performance over temperature.

The 3µA quiescent current of the ICL7665 makes it ideal for voltage monitoring in battery-powered systems. In both battery- and line-powered systems, the unique combination of a reference, two comparators, and hysteresis outputs reduces the size and component count of many circuits.

Applications

  • µP Voltage Monitoring
  • Battery-Backup Switching
  • High/Low Temperature, Pressure, Voltage Alarms
  • Low-Battery Detection
  • Over/Undervoltage Protection
  • Power Supply Fault Monitoring
  • Power-Fail and Brownout Detection

Product Lifecycle icon-recommended Production

At least one model within this product family is in production and available for purchase. The product is appropriate for new designs but newer alternatives may exist.

Product Recommendations

ICL7665 Companion Parts

Design Resources

ADI has always placed the highest emphasis on delivering products that meet the maximum levels of quality and reliability. We achieve this by incorporating quality and reliability checks in every scope of product and process design, and in the manufacturing process as well.  "Zero defects" for shipped products is always our goal.

PCN-PDN Information

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