MAX6352

Dual/Triple-Voltage µP Supervisory Circuits

Industry's-First Multiple Voltage Supervisors in SOT Package


Please check latest availability status for a specific part variant.

Description

The MAX6351-MAX6360 microprocessor (µP) supervisors with multiple reset voltages significantly improve system reliability and accuracy compared to separate ICs or discrete components. If any input supply voltage drops below its associated preset threshold, all reset outputs are asserted. In addition, the outputs are valid as long as either input supply voltage remains greater than +1.0V.

All devices in this series have an active-low debounced manual reset input. In addition, the MAX6358/MAX6359/MAX6360 offer a watchdog-timer input with a 46.4s startup timeout period and a 2.9s timeout period. The MAX6355/MAX6356/MAX6357 offer an additional voltage monitor input to monitor a third voltage.

The MAX6351 features two active-low, push-pull reset outputs, one is referenced to VCC1 and the other is referenced to VCC2. The MAX6353/MAX6356/MAX6359 offer an active-low, push-pull reset output referenced to VCC1. The MAX6354/MAX6357/MAX6360 offer an active-low, push-pull reset output referenced to VCC2.

All these devices are offered with a wide variety of voltage threshold levels, as shown in the Voltage Threshold Levels table. They are available in 5- and 6-pin SOT23 packages and operate over the extended (-40°C to +85°C) temperature range.
MAX6351, MAX6352, MAX6353, MAX6354, MAX6355, MAX6356, MAX6357, MAX6358, MAX6359, MAX6360: Functional Diagram MAX6351, MAX6352, MAX6353, MAX6354, MAX6355, MAX6356, MAX6357, MAX6358, MAX6359, MAX6360: Functional Diagram Enlarge+

Key Features

  • Precision Monitoring of Multiple +1.8V, +2.5V, +3.0V, +3.3V, and +5V Power-Supply Voltages
  • Precision Factory-Set Power-Supply Reset Thresholds
  • 20µA Supply Current
  • 100ms min Power-On Reset Pulse Width
  • Debounced TTL/CMOS-Compatible Manual-Reset Input
  • Watchdog Timer
    • 46.4s Startup Timeout
    • 2.9s Normal Timeout
  • Fully Guaranteed Over Temperature
  • Guaranteed RESET-bar Valid to VCC1 = 1V or VCC2 = 1V
  • Power-Supply Transient Immunity
  • No External Components for Dual-Voltage Systems
  • Small 5- and 6-Pin SOT23 Packages
  • Low Cost

Applications/Uses

  • Computers
  • Controllers
  • Intelligent Instruments
  • Multivoltage Systems Equipment
  • Portable Battery-Powered
Part NumberInterfaceReset Thresh.
(V)
Reset OuttRESETWatchdog FeatureWatchdog TimeoutSupervisor FeaturesReset Thresh. Accur.
(%)
ICC
(µA)
Package/PinsBudgetary
Price
min@ +25°CmaxSee Notes
MAX6351 Factory Fixed
1.2 to 1.8
1.8 to 2.5
2.5 to 3.3
3.3 to 5.5
Active Low
Push-Pull
85ms to 300msNo Watchdog-Manual Reset1.550
SOT23/6
$1.92 @1k
MAX6352 
Active Low
Open Drain
No Watchdog-
SOT23/5
$1.38 @1k
MAX6353 
Active Low
Push-Pull
No Watchdog-
SOT23/5
$1.33 @1k
MAX6354 
Active Low
Push-Pull
No Watchdog-
SOT23/5
$1.42 @1k
MAX6358 
Active Low
Open Drain
Extended Setup Period
Input (WDI)
1s to 2s
>2s
SOT23/6
$1.37 @1k
MAX6359 
Active Low
Push-Pull
Extended Setup Period
Input (WDI)
1s to 2s
>2s
SOT23/6
$1.56 @1k
MAX6360 
Active Low
Push-Pull
Extended Setup Period
Input (WDI)
1s to 2s
>2s
SOT23/6
$1.44 @1k
See All Supervisors (2 Monitored Voltages) (73)

Part NumberInterfaceReset Thresh.
(V)
Reset OuttRESETWatchdog FeatureSupervisor FeaturesReset Thresh. Accur.
(%)
ICC
(µA)
Package/PinsBudgetary
Price
min@ +25°CmaxSee Notes
MAX6355 
Factory Fixed
R/C Adjustable
1.2 to 1.8
1.8 to 2.5
2.5 to 3.3
3.3 to 5.5
Active Low
Open Drain
85ms to 300msNo Watchdog
Adjustable Reset Input
Manual Reset
1.550
SOT23/6
$1.62 @1k
MAX6356 
Active Low
Push-Pull
SOT23/6
$1.52 @1k
MAX6357 
Active Low
Push-Pull
SOT23/6
$1.52 @1k
See All Supervisors (3 Monitored Voltages) (31)
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.

Technical Documents

Tutorial 720 Keep the Product Working—Microprocessor Supervisors Offer Big Insurance in Small Packages

Quality and Environmental Data

Product Reliability Reports: MAX6352.pdf 
Lead-Free Package Tin (Sn) Whisker Reports

CAD Symbols and Footprints

  • MAX6352LSUK+
  • MAX6352LSUK+T
  • MAX6352LTUK+
  • MAX6352LTUK+T
  • MAX6352MRUK+
  • MAX6352MRUK+T
  • MAX6352RVUK+
  • MAX6352SVUK+
  • MAX6352SVUK+T
  • MAX6352SYUK+
  • MAX6352SYUK+T
  • MAX6352TWUK+
  • MAX6352TWUK+T
  • MAX6352TZUK+
  • MAX6352TZUK+T
  • Device   Fab Process   Technology   Sample size   Rejects   FIT at 25°C   FIT at 55°C  

    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.

    Quality Management System >
    Environmental Management System >

     
    Status:
    Package:
    Temperature:

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