MAX6717：Dual/Triple Ultra-Low-Voltage SOT23 µP Supervisory Circuits

The MAX6715-MAX6729 are ultra-low-voltage microprocessor (µP) supervisory circuits designed to monitor two or three system power-supply voltages. These devices assert a system reset if any monitored supply falls below its factory-trimmed or adjustable threshold and maintain reset for a minimum timeout period after all supplies rise above their thresholds. The integrated dual/triple supervisory circuits significantly improve system reliability and reduce size compared to separate ICs or discrete components. These devices monitor primary supply voltages (VCC1) from 1.8V to 5.0V and secondary supply voltages (VCC2) from 0.9V to 3.3V with factory-trimmed reset threshold voltage options (see Reset Voltage Threshold Suffix Guide). An externally adjustable RSTIN input option allows customers to monitor a third supply voltage down to 0.62V. These devices are guaranteed to be in the correct reset output logic state when either VCC1 or VCC2 remains greater than 0.8V. A variety of push-pull or open-drain reset outputs along with watchdog input, manual reset input, and power-fail input/output features are available (see Selector Guide). Select reset timeout periods from 1.1ms to 1120ms (min) (see Reset Timeout Period Suffix Guide). The MAX6715-MAX6729 are available in small 5, 6, and 8-pin SOT23 packages and operate over the -40°C to +85°C temperature range.

Key Features
  • VCC1 (primary supply) Reset Threshold Voltages from 1.58V to 4.63V
  • VCC2 (secondary supply) Reset Threshold Voltages from 0.79V to 3.08V
  • Externally Adjustable RSTIN Threshold for Auxiliary/Triple-Voltage Monitoring (0.62V internal reference)
  • Watchdog Timer Option
    • 35s (min) Long Startup Period
    • 1.12s (min) Normal Timeout Period
  • Manual Reset Input Option
  • Power-Fail Input/Power-Fail Output Option (Push-Pull and Open-Drain Active-Low)
  • Guaranteed Reset Valid Down to VCC1 or VCC2 = 0.8V
  • Reset Output Logic Options
  • Immune to Short VCC Transients
  • Low Supply Current 14µA (typ) at 3.6V
  • Small 5, 6, and 8-Pin SOT23 Packages
MAX6715, MAX6716, MAX6717, MAX6718, MAX6719, MAX6720, MAX6721, MAX6722, MAX6723, MAX6724, MAX6725, MAX6726, MAX6727, MAX6728, MAX6729: Typical Operating Circuit
MAX6715, MAX6716, MAX6717, MAX6718, MAX6719, MAX6720, MAX6721, MAX6722, MAX6723, MAX6724, MAX6725, MAX6726, MAX6727, MAX6728, MAX6729: Typical Operating Circuit
Applications/Uses
  • Computers/Servers
  • Industrial Equipment
  • Multivoltage Systems
  • Portable Battery-Powered Equipment
  • Printers and Faxes
  • Set-Top Boxes
  • Telecom/Networking Equipment
DataSheet
titleDownload file
MAX6715-MAX6729 Data SheetMAX6715-MAX6729.pdf
Parametrics
Part NumberInterfaceReset Thresh.
(V)		Reset OuttRESETWatchdog FeatureWatchdog TimeoutSupervisor FeaturesReset Thresh. Accur.
(%)		ICC
(µA)		Package/PinsBudgetary
Price
min@ +25°CmaxSee Notes
MAX6715Factory Fixed0 to 1.2
1.2 to 1.8
1.8 to 2.5
2.5 to 3.3
3.3 to 5.5		Active Low
Open Drain		1ms to 15ms
15ms to 85ms
85ms to 300ms
300ms to 1s
>1s		No Watchdog-Manual Reset2.537SOT/6$3.21 @1k
MAX6716Active Low
Push-Pull		No Watchdog-Manual ResetSOT/6$3.21 @1k
MAX6717Active Low
Open Drain		No Watchdog-Manual ResetSOT/5$3.21 @1k
MAX6718Active Low
Push-Pull		No Watchdog-Manual ResetSOT/5$3.21 @1k
MAX6721Active Low
Open Drain		Extended Setup Period
Input (WDI)		1s to 2s
>2s		Manual ResetSOT/6$3.21 @1k
MAX6722Active Low
Push-Pull		Extended Setup Period
Input (WDI)		1s to 2s
>2s		Manual ResetSOT/6$2.85 @1k
MAX6728Active Low
Open Drain		Extended Setup Period
Input (WDI)		1s to 2s
>2s		Adjustable Reset Input
Manual Reset
Power Fail Comparator/Low Battery Detect		SOT/8$3.21 @1k
MAX6729Active Low
Push-Pull		Extended Setup Period
Input (WDI)		1s to 2s
>2s		Adjustable Reset Input
Manual Reset
Power Fail Comparator/Low Battery Detect		SOT/8$3.21 @1k

Part NumberInterfaceReset Thresh.
(V)		Reset OuttRESETWatchdog FeatureWatchdog TimeoutSupervisor FeaturesReset Thresh. Accur.
(%)		ICC
(µA)		Package/PinsBudgetary
Price
min@ +25°CmaxSee Notes
MAX6719Factory Fixed0 to 1.2
1.2 to 1.8
1.8 to 2.5
2.5 to 3.3
3.3 to 5.5		Active Low
Open Drain		1ms to 15ms
15ms to 85ms
85ms to 300ms
300ms to 1s
>1s		No Watchdog-Adjustable Reset Input
Manual Reset		2.537SOT/6$3.21 @1k
MAX6720Active Low
Push-Pull		No Watchdog-Adjustable Reset Input
Manual Reset		SOT/6
MAX6723Active Low
Open Drain		Extended Setup Period
Input (WDI)		1s to 2s
>2s		Adjustable Reset InputSOT/6
MAX6724Active Low
Push-Pull		Extended Setup Period
Input (WDI)		1s to 2s
>2s		Adjustable Reset InputSOT/6
MAX6725Active High
Active Low
Open Drain		Extended Setup Period
Input (WDI)		1s to 2s
>2s		Adjustable Reset Input
Manual Reset		SOT/8
MAX6726Active High
Active Low
Push-Pull		Extended Setup Period
Input (WDI)		1s to 2s
>2s		Adjustable Reset Input
Manual Reset		SOT/8
MAX6727Active Low
Open Drain		Extended Setup Period
Input (WDI)		1s to 2s
>2s		Adjustable Reset Input
Manual Reset		SOT/8
Related Products
  • MAX6708：Low-Voltage, SOT23, µP Supervisors with Power-Fail In/Out, Manual Reset, and Watchdog Timer
  • MAX6705：Low-Voltage, SOT23, µP Supervisors with Power-Fail In/Out, Manual Reset, and Watchdog Timer
  • MAX6706：Low-Voltage, SOT23, µP Supervisors with Power-Fail In/Out, Manual Reset, and Watchdog Timer
  • MAX6703：Low-Voltage, SOT23, µP Supervisors with Power-Fail In/Out, Manual Reset, and Watchdog Timer
  • MAX6704：Low-Voltage, SOT23, µP Supervisors with Power-Fail In/Out, Manual Reset, and Watchdog Timer
  • MAX6701：Low-Voltage, SOT23, µP Supervisors with Power-Fail In/Out, Manual Reset, and Watchdog Timer
  • MAX6702：Low-Voltage, SOT23, µP Supervisors with Power-Fail In/Out, Manual Reset, and Watchdog Timer
  • MAX6707：Low-Voltage, SOT23, µP Supervisors with Power-Fail In/Out, Manual Reset, and Watchdog Timer
  • MAX6828：Dual, Ultra-Low-Voltage SOT23 µP Supervisors with Manual Reset and Watchdog Timer
  • MAX6831：Dual, Ultra-Low-Voltage SOT23 µP Supervisors with Manual Reset and Watchdog Timer
  • MAX6829：Dual, Ultra-Low-Voltage SOT23 µP Supervisors with Manual Reset and Watchdog Timer
  • MAX6826：Dual, Ultra-Low-Voltage SOT23 µP Supervisors with Manual Reset and Watchdog Timer
  • MAX6827：Dual, Ultra-Low-Voltage SOT23 µP Supervisors with Manual Reset and Watchdog Timer
  • MAX6830：Dual, Ultra-Low-Voltage SOT23 µP Supervisors with Manual Reset and Watchdog Timer
Ordering Information
Part NumberStatusRecommended ReplacementPackageTempRoHS
MAX6717UKLTD1-TNo Longer AvailableSOT,;5 pin;9 mm²-40°C to +85°CNo
MAX6717UKLTD2-TNo Longer AvailableSOT,;5 pin;9 mm²-40°C to +85°CNo
MAX6717UKLTD3+ActiveSOT,;5 pin;9 mm²-40°C to +85°CLead Free
MAX6717UKLTD3+TActiveSOT,;5 pin;9 mm²-40°C to +85°CLead Free
MAX6717UKLTD3-TNo Longer AvailableMAX6717UKLTD3+TSOT,;5 pin;9 mm²-40°C to +85°CNo
MAX6717UKLTD4-TNo Longer AvailableSOT,;5 pin;9 mm²-40°C to +85°CNo
MAX6717UKLTD5-TNo Longer AvailableSOT,;5 pin;9 mm²-40°C to +85°CNo
MAX6717UKLTD6-TNo Longer AvailableSOT,;5 pin;9 mm²-40°C to +85°CNo
MAX6717UKMRD1-TNo Longer AvailableSOT,;5 pin;9 mm²-40°C to +85°CNo
MAX6717UKMRD2-TNo Longer AvailableSOT,;5 pin;9 mm²-40°C to +85°CNo
Part NumberStatusRecommended ReplacementPackageTempRoHS
MAX6717UKMRD3-TNo Longer AvailableSOT,;5 pin;9 mm²-40°C to +85°CNo
MAX6717UKMRD4-TNo Longer AvailableSOT,;5 pin;9 mm²-40°C to +85°CNo
MAX6717UKMRD5-TNo Longer AvailableSOT,;5 pin;9 mm²-40°C to +85°CNo
MAX6717UKMRD6-TNo Longer AvailableSOT,;5 pin;9 mm²-40°C to +85°CNo
MAX6717UKMSD1-TNo Longer AvailableSOT,;5 pin;9 mm²-40°C to +85°CNo
MAX6717UKMSD2-TNo Longer AvailableSOT,;5 pin;9 mm²-40°C to +85°CNo
MAX6717UKMSD3-TNo Longer AvailableSOT,;5 pin;9 mm²-40°C to +85°CNo
MAX6717UKMSD4-TNo Longer AvailableSOT,;5 pin;9 mm²-40°C to +85°CNo
MAX6717UKMSD5-TNo Longer AvailableSOT,;5 pin;9 mm²-40°C to +85°CNo
MAX6717UKMSD6-TNo Longer AvailableSOT,;5 pin;9 mm²-40°C to +85°CNo
Part NumberStatusRecommended ReplacementPackageTempRoHS
MAX6717UKRDD1-TNo Longer AvailableSOT,;5 pin;9 mm²-40°C to +85°CNo
MAX6717UKRDD2-TNo Longer AvailableSOT,;5 pin;9 mm²-40°C to +85°CNo
MAX6717UKRDD3-TNo Longer AvailableSOT,;5 pin;9 mm²-40°C to +85°CNo
MAX6717UKRDD4-TNo Longer AvailableSOT,;5 pin;9 mm²-40°C to +85°CNo
MAX6717UKRDD5-TNo Longer AvailableSOT,;5 pin;9 mm²-40°C to +85°CNo
MAX6717UKRDD6-TNo Longer AvailableSOT,;5 pin;9 mm²-40°C to +85°CNo
MAX6717UKRFD1-TNo Longer AvailableSOT,;5 pin;9 mm²-40°C to +85°CNo
MAX6717UKRFD2-TNo Longer AvailableSOT,;5 pin;9 mm²-40°C to +85°CNo
MAX6717UKRFD3-TNo Longer AvailableSOT,;5 pin;9 mm²-40°C to +85°CNo
MAX6717UKRFD4-TNo Longer AvailableSOT,;5 pin;9 mm²-40°C to +85°CNo
Part NumberStatusRecommended ReplacementPackageTempRoHS
MAX6717UKRFD5-TNo Longer AvailableSOT,;5 pin;9 mm²-40°C to +85°CNo
MAX6717UKRFD6-TNo Longer AvailableSOT,;5 pin;9 mm²-40°C to +85°CNo
MAX6717UKRHD1-TNo Longer AvailableSOT,;5 pin;9 mm²-40°C to +85°CNo
MAX6717UKRHD2-TNo Longer AvailableSOT,;5 pin;9 mm²-40°C to +85°CNo
MAX6717UKRHD3-TNo Longer AvailableSOT,;5 pin;9 mm²-40°C to +85°CNo
MAX6717UKRHD4-TNo Longer AvailableSOT,;5 pin;9 mm²-40°C to +85°CNo
MAX6717UKRHD5-TNo Longer AvailableSOT,;5 pin;9 mm²-40°C to +85°CNo
MAX6717UKRHD6-TNo Longer AvailableSOT,;5 pin;9 mm²-40°C to +85°CNo
MAX6717UKRVD1-TNo Longer AvailableSOT,;5 pin;9 mm²-40°C to +85°CNo
MAX6717UKRVD2-TNo Longer AvailableSOT,;5 pin;9 mm²-40°C to +85°CNo
Part NumberStatusRecommended ReplacementPackageTempRoHS
MAX6717UKRVD3+TActiveSOT,;5 pin;9 mm²-40°C to +85°CLead Free
MAX6717UKRVD3-TNo Longer AvailableMAX6717UKRVD3+TSOT,;5 pin;9 mm²-40°C to +85°CNo
MAX6717UKRVD4-TNo Longer AvailableSOT,;5 pin;9 mm²-40°C to +85°CNo
MAX6717UKRVD5-TNo Longer AvailableSOT,;5 pin;9 mm²-40°C to +85°CNo
MAX6717UKRVD6-TNo Longer AvailableSOT,;5 pin;9 mm²-40°C to +85°CNo
MAX6717UKRYD1-TNo Longer AvailableSOT,;5 pin;9 mm²-40°C to +85°CNo
MAX6717UKRYD2-TNo Longer AvailableSOT,;5 pin;9 mm²-40°C to +85°CNo
MAX6717UKRYD3-TNo Longer AvailableSOT,;5 pin;9 mm²-40°C to +85°CNo
MAX6717UKRYD4-TNo Longer AvailableSOT,;5 pin;9 mm²-40°C to +85°CNo
MAX6717UKRYD5-TNo Longer AvailableSOT,;5 pin;9 mm²-40°C to +85°CNo
MAX6715-MAX6729.pdf MAX6727
MAX6715-MAX6729.pdf MAX6729
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