MAX6464:Ultra-Low-Power Voltage Detectors and µP Supervisory Circuits

The MAX6461-MAX6466 family of ultra-low-power voltage detectors and µP reset supervisory circuits monitors battery, power-supply, and system voltages. Each circuit includes a precision bandgap reference, a comparator, internally trimmed resistor networks that set specified trip thresholds, and an internal 5% threshold hysteresis circuit (see the Functional Diagram). Output is asserted when VCC falls below the internal VTH- and remains asserted until VCC rises above VTH+ (VTH+ = VTH- x 1.05). These devices provide excellent circuit reliability and low cost by eliminating external components and adjustments when monitoring nominal system voltages from +1.6V to +5.5V. The MAX6461/MAX6462/MAX6463 are voltage detectors with a propagation delay of 17µs. The MAX6464/MAX6465/MAX6466 are µP supervisory circuits with a minimum reset timeout period of 150ms. All devices are available with thresholds from +1.6V to +5.5V in 100mV increments. The family is available with three output stage options: push-pull with active-low output, push-pull with active-high output, and open drain with active-low output. These devices are available in SC70 and SOT23 packages specified over the -40°C to +125°C temperature range.

Key Features
  • Ultra-Low 1.0µA Supply Current
  • Preset Thresholds from +1.6V to +5.5V in 100mV Increments
  • Internal 5% Threshold Hysteresis
  • ±2.5% Threshold Accuracy Over Temperature
  • Internal Timeout Period Option (150ms min)
  • Immune to Short Voltage Transients
  • No External Components
  • Available in Three Output Options: Push-Pull (Active Low/Active High) and Open Drain (Active Low)
  • Fully Specified from -40°C to +125°C
  • Small SC70 and SOT23 Packages
MAX6461, MAX6462, MAX6463, MAX6464, MAX6465, MAX6466: Functional Diagram
MAX6461, MAX6462, MAX6463, MAX6464, MAX6465, MAX6466: Functional Diagram
Applications/Uses
  • Cell Phones
  • Cordless Phones
  • Load Switching/Power Sequencing
  • Noise-Immune µP Reset Circuits
  • PDAs
  • Portable Battery-Powered Equipment
  • Portable Medical Devices
  • Power-Supply Monitoring in Digital/Analog Systems
  • Precision Battery Monitoring
DataSheet
titleDownload file
MAX6461-MAX6466 Data SheetMAX6461-MAX6466.pdf
Parametrics
Part NumberReset Thresh.
(V)
Reset OuttRESETWatchdog FeatureReset Thresh. Accur.
(%)
ICC
(µA)
Package/PinsBudgetary
Price
min@ +25°CmaxSee Notes
MAX64611.2 to 1.8
1.8 to 2.5
2.5 to 3.3
3.3 to 5.5
Active Low
Push-Pull
<1msNo Watchdog13.5SC-70/3
SOT/3
SOT/5
$1.24 @1k
MAX6462Active High
Push-Pull
<1ms1SC-70/3
SOT/3
SOT/5
$1.07 @1k
MAX6463Active Low
Open Drain
<1ms1SC-70/3
SOT/3
SOT/5
$1.24 @1k
MAX6464Active Low
Push-Pull
85ms to 300ms2.5SC-70/3
SOT/3
SOT/5
$1.42 @1k
MAX6465Active High
Push-Pull
85ms to 300ms2.5SC-70/3
SOT/3
SOT/5
$1.07 @1k
MAX6466Active Low
Open Drain
85ms to 300ms2.5SC-70/3
SOT/3
SOT/5
$1.42 @1k
Quality and Environmental Data
Related Products
  • MAX6386:SC70/µDFN, Single/Dual Low-Voltage, Low-Power µP Reset Circuits
  • MAX6383:SC70/µDFN, Single/Dual Low-Voltage, Low-Power µP Reset Circuits
  • MAX6384:SC70/µDFN, Single/Dual Low-Voltage, Low-Power µP Reset Circuits
  • MAX6381:SC70/µDFN, Single/Dual Low-Voltage, Low-Power µP Reset Circuits
  • MAX6382:SC70/µDFN, Single/Dual Low-Voltage, Low-Power µP Reset Circuits
  • MAX6389:SC70/µDFN, Single/Dual Low-Voltage, Low-Power µP Reset Circuits
  • MAX6390:SC70/µDFN, Single/Dual Low-Voltage, Low-Power µP Reset Circuits
  • MAX6387:SC70/µDFN, Single/Dual Low-Voltage, Low-Power µP Reset Circuits
  • MAX6385:SC70/µDFN, Single/Dual Low-Voltage, Low-Power µP Reset Circuits
  • MAX6388:SC70/µDFN, Single/Dual Low-Voltage, Low-Power µP Reset Circuits
  • MAX6378:3-Pin, Ultra-Low-Power SC70/SOT23 Voltage Detectors
  • MAX6379:3-Pin, Ultra-Low-Power SC70/SOT23 Voltage Detectors
  • MAX6376:3-Pin, Ultra-Low-Power SC70/SOT23 Voltage Detectors
  • MAX6380:3-Pin, Ultra-Low-Power SC70/SOT23 Voltage Detectors
  • MAX6377:3-Pin, Ultra-Low-Power SC70/SOT23 Voltage Detectors
  • MAX6375:3-Pin, Ultra-Low-Power SC70/SOT23 Voltage Detectors
Ordering Information
Part NumberStatusRecommended ReplacementPackageTempRoHS
MAX6464UK16+TActiveSOT;-40°C to +85°CSee data sheet
MAX6464UK16-TNo Longer AvailableSOT,;5 pin;9 mm²-40°C to +85°CNo
MAX6464UK17+TActiveSOT,;5 pin;9 mm²-40°C to +85°CLead Free
MAX6464UK17-TNo Longer AvailableMAX6464UK17+TSOT,;5 pin;9 mm²-40°C to +85°CNo
MAX6464UK18+TActiveSOT;-40°C to +85°CSee data sheet
MAX6464UK18-TNo Longer AvailableSOT,;5 pin;9 mm²-40°C to +85°CNo
MAX6464UK19+TActiveSOT;-40°C to +85°CSee data sheet
MAX6464UK19-TNo Longer AvailableSOT,;5 pin;9 mm²-40°C to +85°CNo
MAX6464UK20+TActiveSOT;-40°C to +85°CSee data sheet
MAX6464UK20-TNo Longer AvailableSOT,;5 pin;9 mm²-40°C to +85°CNo
Part NumberStatusRecommended ReplacementPackageTempRoHS
MAX6464UK21+TActiveSOT;-40°C to +85°CSee data sheet
MAX6464UK21-TNo Longer AvailableSOT,;5 pin;9 mm²-40°C to +85°CNo
MAX6464UK22+ActiveSOT,;5 pin;9 mm²-40°C to +85°CLead Free
MAX6464UK22+TActiveSOT,;5 pin;9 mm²-40°C to +85°CLead Free
MAX6464UK22-TNo Longer AvailableMAX6464UK22+TSOT,;5 pin;9 mm²-40°C to +85°CNo
MAX6464UK23+TActiveSOT,;5 pin;9 mm²-40°C to +85°CLead Free
MAX6464UK23-TNo Longer AvailableSOT,;5 pin;9 mm²-40°C to +85°CNo
MAX6464UK24+TActiveSOT;-40°C to +85°CSee data sheet
MAX6464UK24-TNo Longer AvailableSOT,;5 pin;9 mm²-40°C to +85°CNo
MAX6464UK25+TActiveSOT;-40°C to +85°CSee data sheet
Part NumberStatusRecommended ReplacementPackageTempRoHS
MAX6464UK25-TNo Longer AvailableSOT,;5 pin;9 mm²-40°C to +85°CNo
MAX6464UK26+ActiveSOT,;5 pin;9 mm²-40°C to +85°CLead Free
MAX6464UK26+TActiveSOT,;5 pin;9 mm²-40°C to +85°CLead Free
MAX6464UK26-TNo Longer AvailableMAX6464UK26+TSOT,;5 pin;9 mm²-40°C to +85°CNo
MAX6464UK27+TActiveSOT;-40°C to +85°CSee data sheet
MAX6464UK27-TNo Longer AvailableSOT,;5 pin;9 mm²-40°C to +85°CNo
MAX6464UK28+TActiveSOT;-40°C to +85°CSee data sheet
MAX6464UK28-TNo Longer AvailableSOT,;5 pin;9 mm²-40°C to +85°CNo
MAX6464UK29+ActiveSOT,;5 pin;9 mm²-40°C to +85°CLead Free
MAX6464UK29+TActiveSOT,;5 pin;9 mm²-40°C to +85°CLead Free
Part NumberStatusRecommended ReplacementPackageTempRoHS
MAX6464UK29-TNo Longer AvailableMAX6464UK29+TSOT,;5 pin;9 mm²-40°C to +85°CNo
MAX6464UK30+TActiveSOT;-40°C to +85°CSee data sheet
MAX6464UK30-TNo Longer AvailableSOT,;5 pin;9 mm²-40°C to +85°CNo
MAX6464UK31+ActiveSOT,;5 pin;9 mm²-40°C to +85°CLead Free
MAX6464UK31+TActiveSOT,;5 pin;9 mm²-40°C to +85°CLead Free
MAX6464UK31-TNo Longer AvailableMAX6464UK31+TSOT,;5 pin;9 mm²-40°C to +85°CNo
MAX6464UK32+TActiveSOT;-40°C to +85°CSee data sheet
MAX6464UK32-TNo Longer AvailableSOT,;5 pin;9 mm²-40°C to +85°CNo
MAX6464UK33+TActiveSOT;-40°C to +85°CSee data sheet
MAX6464UK33-TNo Longer AvailableSOT,;5 pin;9 mm²-40°C to +85°CNo
Part NumberStatusRecommended ReplacementPackageTempRoHS
MAX6464UK34+TActiveSOT;-40°C to +85°CSee data sheet
MAX6464UK34-TNo Longer AvailableSOT,;5 pin;9 mm²-40°C to +85°CNo
MAX6464UK35+TActiveSOT;-40°C to +85°CSee data sheet
MAX6464UK35-TNo Longer AvailableSOT,;5 pin;9 mm²-40°C to +85°CNo
MAX6464UK36+TActiveSOT;-40°C to +85°CSee data sheet
MAX6464UK36-TNo Longer AvailableSOT,;5 pin;9 mm²-40°C to +85°CNo
MAX6464UK37+TActiveSOT;-40°C to +85°CSee data sheet
MAX6464UK37-TNo Longer AvailableSOT,;5 pin;9 mm²-40°C to +85°CNo
MAX6464UK38+TActiveSOT;-40°C to +85°CSee data sheet
MAX6464UK38-TNo Longer AvailableSOT,;5 pin;9 mm²-40°C to +85°CNo
MAX6461-MAX6466.pdf MAX6466
MAX6464.pdf MAX6464