MAX8212:Microprocessor Voltage Monitors with Programmable Voltage Detection

Maxim's MAX8211 and MAX8212 are CMOS micropower voltage detectors that warn microprocessors (µPs) of power failures. Each contains a comparator, a 1.5V 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 1.5V internal reference. In the MAX8212, a voltage greater than 1.5V 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.

Key Features
  • 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)
MAX8211, MAX8212: Typical Operating Circuit
MAX8211, MAX8212: Typical Operating Circuit
Applications/Uses
  • µP Voltage Monitoring
  • Battery-Backup Switching
  • Low-Battery Detection
  • Overvoltage Detection
  • Power-Supply Fault Monitoring
  • Undervoltage Detection
DataSheet
titleDownload file
MAX8211-MAX8212 Data SheetMAX8211-MAX8212.pdf
Parametrics
Part NumberReset Thresh.
(V)
Reset OuttRESETWatchdog FeatureSupervisor FeaturesReset Thresh. Accur.
(%)
ICC
(µA)
Package/PinsBudgetary
Price
min@ +25°CmaxSee Notes
MAX82111.2 to 1.8
1.8 to 2.5
2.5 to 3.3
3.3 to 5.5
Active Low
Open Drain
<1msNo WatchdogHigh Voltage (>6V)315µMAX/8
CDIP(N)/8
FPCK/10
PDIP(N)/8
SOIC(N)/8
TO99/8
$1.96 @1k
MAX8212µMAX/8
CDIP(N)/8
PDIP(N)/8
SOIC(N)/8
TO99/8
$1.83 @1k
Quality and Environmental Data
Related Products
  • MAX6808:Voltage Detectors
  • MAX6806:Voltage Detectors
  • MAX6807:Voltage Detectors
  • MAX835:Micropower, Latching Voltage Monitors in SOT23-5
  • MAX834:Micropower, Latching Voltage Monitors in SOT23-5
  • MAX836:4-Pin Micropower Voltage Monitors
  • MAX837:4-Pin Micropower Voltage Monitors
  • MAX8213:Five Universal Voltage Monitors, Complete µP Voltage Monitoring
  • MAX8214:Five Universal Voltage Monitors, Complete µP Voltage Monitoring
  • ICL7665:µP Voltage Monitor with Dual Over/Undervoltage Detection
  • MAX8215:±5V, ±12V (±15V) Dedicated Microprocessor Voltage Monitors
  • MAX8216:±5V, ±12V (±15V) Dedicated Microprocessor Voltage Monitors
Ordering Information
Part NumberStatusRecommended ReplacementPackageTempRoHS
MAX8212CPANo Longer AvailableMAX8212CPA+PDIP(N),;8 pin;79.7 mm²0°C to +70°CNo
MAX8212CPA+ActivePDIP(N),;8 pin;79.7 mm²0°C to +70°CLead Free
MAX8212CSANo Longer AvailableMAX8212CSA+SOIC(N),;8 pin;30.9 mm²0°C to +70°CNo
MAX8212CSA+ActiveSOIC(N),;8 pin;30.9 mm²0°C to +70°CLead Free
MAX8212CSA+TActiveSOIC(N),;8 pin;30.9 mm²0°C to +70°CLead Free
MAX8212CSA-TNo Longer AvailableMAX8212CSA+TN.SO;8 pin0°C to +70°CSee data sheet
MAX8212CTYNo Longer AvailableTO99,;8 pin;88.4 mm²0°C to +70°CNo
MAX8212CTY-2ActiveTO99,;8 pin;88.4 mm²0°C to +70°CNo
MAX8212CUANo Longer AvailableMAX8212CUA+µMAX,;8 pin;15.6 mm²0°C to +70°CNo
MAX8212CUA+ActiveµMAX,;8 pin;15.6 mm²0°C to +70°CLead Free
Part NumberStatusRecommended ReplacementPackageTempRoHS
MAX8212CUA+TActiveµMAX,;8 pin;15.6 mm²0°C to +70°CLead Free
MAX8212CUA-TNo Longer AvailableMAX8212CUA+TµMAX,;8 pin;15.6 mm²0°C to +70°CNo
MAX8212EJANo Longer AvailableCDIP(N),;8 pin;82.6 mm²-40°C to +85°CNo
MAX8212EPANo Longer AvailableMAX8212EPA+PDIP(N),;8 pin;79.7 mm²-40°C to +85°CNo
MAX8212EPA+ActivePDIP(N),;8 pin;79.7 mm²-40°C to +85°CLead Free
MAX8212ESANo Longer AvailableMAX8212ESA+SOIC(N),;8 pin;30.9 mm²-40°C to +85°CNo
MAX8212ESA+ActiveSOIC(N),;8 pin;30.9 mm²-40°C to +85°CLead Free
MAX8212ESA+TActiveSOIC(N),;8 pin;30.9 mm²-40°C to +85°CLead Free
MAX8212ESA-TNo Longer AvailableMAX8212ESA+TSOIC(N),;8 pin;30.9 mm²-40°C to +85°CNo
MAX8212ETYNo Longer AvailableTO99,;8 pin;88.4 mm²-40°C to +85°CNo
Part NumberStatusRecommended ReplacementPackageTempRoHS
MAX8212MJAActiveCDIP(N),;8 pin;82.6 mm²-55°C to +125°CNo
MAX8212MJA/883BActiveCDIP(N),;8 pin;82.6 mm²-55°C to +125°CNo
MAX8212MTVNo Longer AvailableTO99,;8 pin;88.4 mm²-55°C to +125°CNo
MAX8212MTV/883BNo Longer AvailableGOLD C;8 pin-55°C to +125°CSee data sheet
MAX8212MTV/HRNo Longer AvailableTO99,;8 pin;88.4 mm²-55°C to +125°CNo
MAX8212MTYActiveTO99,;8 pin;88.4 mm²-55°C to +125°CNo
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