MAX8211

PRODUCTION

Microprocessor Voltage Monitors with Programmable Voltage Detection

Data Sheet (Rev. 6) Product Selection Table
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Overview

  • µP Power-Fail Warning
  • Improved 2nd Source for ICL8211/ICL8212
  • Low-Power CMOS Design
  • 5µA Quiescent Current
  • On-Board Hysteresis Output
  • ±40mV Threshold Accuracy (±3.5%)
  • 2.0V to 16.5V Supply-Voltage Range
  • Define Output Current Limit (MAX8211)
  • High Output Current Capability (MAX8212)

Maxim's MAX8211 and MAX8212 are CMOS micropower voltage detectors that warn microprocessors (µPs) of power failures. Each contains a comparator, a 1.15V bandgap reference, and an open-drain n-channel output driver. Two external resistors are used in conjunction with the internal reference to set the trip voltage to the desired level. A hysteresis output is also included, allowing the user to apply positive feedback for noise-free output switching.

The MAX8211 provides a 7mA current-limited output sink whenever the voltage applied to the threshold pin is less than the 1.15V internal reference. In the MAX8212, a voltage greater than 1.15V at the threshold pin turns the output stage on (no current limit).

The CMOS MAX8211/MAX8212 are plug-in replacements for the bipolar ICL8211/ICL8212 in applications where the maximum supply voltage is less than 16.5V. They offer several performance advantages, including reduced supply current, a more tightly controlled bandgap reference, and more available current from the hysteresis output.

Applications

  • µP Voltage Monitoring
  • Battery-Backup Switching
  • Low-Battery Detection
  • Overvoltage Detection
  • Power-Supply Fault Monitoring
  • Undervoltage Detection
MAX8211
Microprocessor Voltage Monitors with Programmable Voltage Detection
MAX8211, MAX8212: Typical Operating Circuit
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Documentation

Data Sheet 2

Reliability Data 1

Technical Articles 2

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Software Resources

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Hardware Ecosystem

Parts Product Life Cycle Description
Circuit Monitors 9
ICL7665
PRODUCTION µP Voltage Monitor with Dual Over/Undervoltage Detection
MAX834
PRODUCTION Micropower, Latching Voltage Monitors in SOT23-5
MAX835
PRODUCTION Micropower, Latching Voltage Monitors in SOT23-5
MAX836
PRODUCTION 4-Pin Micropower Voltage Monitors
MAX837
PRODUCTION 4-Pin Micropower Voltage Monitors
MAX8213
PRODUCTION Five Universal Voltage Monitors, Complete µP Voltage Monitoring
MAX8214
PRODUCTION Five Universal Voltage Monitors, Complete µP Voltage Monitoring
MAX8215
PRODUCTION ±5V, ±12V (±15V) Dedicated Microprocessor Voltage Monitors
MAX8216
PRODUCTION ±5V, ±12V (±15V) Dedicated Microprocessor Voltage Monitors
Supervisory Circuits & Reset ICs 3
MAX6806
PRODUCTION Voltage Detectors
MAX6807
Voltage Detectors
MAX6808
PRODUCTION Voltage Detectors
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