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MAX8213A, MAX8213B

Five Universal Voltage Monitors, Complete µP Voltage Monitoring

Five Universal Voltage Monitors

Product Details

Key Features

Parametric specs for Supervisors (> 5 Monitored Voltages)
Reset Thresh. (V) 1.2 to 1.8
1.8 to 2.5
2.5 to 3.3
3.3 to 5.5
Reset Out Active Low
Open Drain
# Voltages Monitored 5
Interface Pin-Selectable
R/C Adjustable
tRESET (min) <1ms
Watchdog Feature No Watchdog
Supervisor Features Adjustable Reset Input
High Voltage (>6V)
Overvoltage/Window Monitor
ICC (µA) (max) 35
Package/Pins PDIP/16
SOIC (N)/16
Budgetary
Price (See Notes)
3.46
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Simplified Block Diagram

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Parameters

Parametric specs for Supervisors (<u>></u> 5 Monitored Voltages)
Reset Thresh. (V) 1.2 to 1.8
1.8 to 2.5
2.5 to 3.3
3.3 to 5.5
Reset Out Active Low
Open Drain
# Voltages Monitored 5
Interface Pin-Selectable
R/C Adjustable
tRESET (min) <1ms
Watchdog Feature No Watchdog
Supervisor Features Adjustable Reset Input
High Voltage (>6V)
Overvoltage/Window Monitor
ICC (µA) (max) 35
Package/Pins PDIP/16
SOIC (N)/16
Budgetary
Price (See Notes)
3.46

Key Features

  • ±1% Guaranteed Trip-Level Accuracy over Commercial Temp. Range
  • 4 Precision Comparators Plus Auxiliary Comparator
  • Built-in Hysteresis
  • Internal 1.25V Reference with 0.75% Initial Accuracy
  • ±1% Guaranteed Trip-Level Matching Between Channels over Commercial Temp. Range
  • Wide Supply Range: 2.75V to 11V
  • Controlled Comparator Response for Glitch Immunity
  • 33µA Max Supply Current Over Temp.

Applications/Uses

  • Appliances
  • Automotive and Industrial Equipment
  • Industrial Controllers
  • Microprocessor Voltage Monitoring
  • Mobile Radios
  • Over/Under/Window Voltage Detection
  • Portable Computers
  • Portable Instruments
  • Precision Battery Monitoring
  • Telephones

Description

The MAX8213 and MAX8214 contain four precision voltage comparators capable of monitoring undervoltage and overvoltage conditions for both positive and negative supplies. Accurate trip-point setting is facilitated by the internal 1.25V reference. Not only is trip-level accuracy guaranteed to ±1% over the commercial temperature range, but the trip levels of all channels are guaranteed to match each other within ±1%. A fifth comparator channel monitors microprocessor voltages and generates delayed reset signals. The MAX8213 has open-drain outputs, while active pull-up outputs are incorporated in the MAX8214.

Simplified Block Diagram

MAX8213, MAX8214: Typical Operating Circuit MAX8213, MAX8214: Typical Operating Circuit Zoom icon

Technical Docs

Support & Training

Search our knowledge base for answers to your technical questions.

Filtered Search

Our dedicated team of Applications Engineers are also available to answer your technical questions. Visit our support portal .