MAX8215

Features:

4 Dedicated Comparators plus 1 Auxiliary
Comparator
5V Dedicated Comparator Has ±1.25% Accuracy
-5V, +12V, -12V, +15V, -15V Dedicated
Comparators Have ±1.5% Accuracy
Overvoltage/Undervoltage Detection or
Programmable Delay Using Auxiliary Comparator
Internal 1.24V Reference with ±1% Initial
Accuracy
Wide Supply Range: 2.7V to 11V
Built-In Hysteresis
250A Max Supply Current Over Temp.
Independent Open-Drain Outputs
All Precision Components Included


Application

Microprocessor Voltage Monitor
  +5V, -5V, +12V, -12V Supply Monitoring (MAX8215)
  +5V, -5V, +15V, -15V Supply Monitoring (MAX8216)
Overvoltage/Undervoltage Detection with
  Uncommitted Comparator
Industrial Controllers
Mobile Radios
Portable Instruments
Industrial Equipment
Data-Acquisition Systems


Pinout




Specifications

V_DD............................................................................-0.3V, +12V
VREF..............................................................-0.3V, (VDD + 0.3V)
OUT_, DOUT Outputs....................................-0.3V, (VDD + 0.3V)
+5V Input...................................................................+20V, -0.3V
-5V, +12V, +15V, -12V, -15V Inputs.....................................±50V
DIN Input.......................................................(VDD + 0.3V), -0.3V
Continuous Power Dissipation (TA = +70°C)
  Plastic DIP (derate 10.00mW/°C above +70°C) ...........800mW
  SO (derate 8.33mW/°C above +70°C)..........................667mW
  CERDIP (derate 9.09mW/°C above +70°C)..................727mW
Operating Temperature Ranges:
  MAX821_C_ _ ......................................................0°C to +70°C
  MAX821_E_ _....................................................-40°C to +85°C
  MAX821_M_ _.................................................-55°C to +125°C
Storage Temperature Range.............................-65°C to +165°C
Lead Temperature (soldering, 10sec).............................+300°C

Stresses beyond those listed under "Absolute Maximum Ratings" may cause permanent damage to the device. These are stress ratings only, and functional operation of the device at these or any other conditions beyond those indicated in the operational sections of the specifications is not implied. Exposure to absolute maximum rating conditions for extended periods may affect device reliability.


Description

The MAX8215 contains five voltage comparators; four are for monitoring +5V, -5V, +12V, and -12V, and the fifth monitors any desired voltage.  The MAX8216 is identical, except it monitors ±15V supplies instead of ±12V.  The resistors required to monitor these voltages and provide comparator hysteresis are included onchip.  All comparators have open-drain outputs.  These MAX8215 consume 250A max supply current over temperature.