High-Voltage Supervisors with Manual Reset Input

High-Voltage Supervisors with Manual Reset Input

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The MAX16143, MAX16145, MAX16147, and MAX16149 are supervisory circuits that monitor their own supply voltages using a factory-set reset threshold that ranges from +2.3V to +11.6V. A manual reset (MR or active-low MR) input is included. The RESET (or active-low RESET) output has options for active-low, active-high, push-pull, or open-drain. The reset output asserts when the monitored voltage falls below the threshold voltage, and remains asserted until the monitored voltage has exceeded its threshold (plus hysteresis) for a time equal to the factory-set reset timeout period. Available reset timeout periods range from 30µs to 4.2s.

The 5-pin SOT23 and 4-bump wafer-level packages (WLPs) offer compatibility with space-constrained environments. These ICs are fully specified over the -40°C to +125°C temperature range.

MAX16147: Simplified Block Diagram MAX16147: Simplified Block Diagram Enlarge+

Key Features

  • Factory-Set Reset Threshold Options from +2.3V to +11.6V
  • Manual Reset Input
    • Active-High and Active-Low Trigger Options
    • Optional Internal Pullup or Pulldown
    • Fast (45µs) and Slow (50ms) Debounce Time Options
  • Guaranteed Reset Valid to VCC ≥ 1.3V
  • Push-Pull and Open-Drain Reset Output Options
    • MAX16143: Open-Drain, Active-Low
    • MAX16145: Open-Drain, Active-High
    • MAX16147: Push-Pull, Active-Low
    • MAX16149: Push-Pull, Active-High
  • Power-Supply Transient Immunity
  • -40°C to +125°C Operating Temperature Range
  • SOT23-5 Package and 4-Bump WLPs


  • Communications Equipment
  • Industrial Equipment
  • Servers

See parametric specs for Supervisors (1 Monitored Voltage) (252)

Part NumberReset Thresh.
Reset OuttRESETWatchdog FeatureSupervisor FeaturesReset Thresh. Accur.
min@ +25°CmaxSee Notes
1.8 to 2.5
2.5 to 3.3
3.3 to 5.5
Active Low
1ms to 15ms
15ms to 85ms
85ms to 300ms
250ms to 450ms
300ms to 1s
No Watchdog
High Voltage (>6V)
Manual Reset
$0.58 @1

Pricing Notes:
This pricing is BUDGETARY, for comparing similar parts. Prices are in U.S. dollars and subject to change. Quantity pricing may vary substantially and international prices may differ due to local duties, taxes, fees, and exchange rates. For volume-specific and version-specific prices and delivery, please see the price and availability page or contact an authorized distributor.
Request Reliability Report for: MAX16147 
Device   Fab Process   Technology   Sample size   Rejects   FIT at 25°C   FIT at 55°C   Material Composition  

Note : The failure rates are summarized by technology and mapped to the associated material part numbers. The failure rates are highly dependent on the number of units tested.

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