MAX6363H, MAX6363L, MAX6363P:SOT23, Low-Power Microprocessor Supervisory Circuits with Battery Backup

The MAX6361–MAX6364 supervisory circuits reduce the complexity and number of components required for power-supply monitoring and battery control functions in microprocessor (µP) systems. The circuits significantly improve system reliability and accuracy compared to that obtainable with separate ICs or discrete components. Their functions include µP reset, backup battery switchover, and power failure warning. The MAX6361–MAX6364 operate from supply voltages as low as +1.2V. The factory-preset reset threshold voltage ranges from 2.32V to 4.63V (see Ordering Information). These devices provide a manual reset input (MAX6361), watchdog timer input (MAX6362), battery-on output (MAX6363), and an auxiliary adjustable reset input (MAX6364). In addition, each part type is offered in three reset output versions: an active-low push-pull reset, an active-low open-drain reset, and an active-high open-drain reset (see Selector Guide at end of data sheet).

Key Features
  • Low +1.2V Operating Supply Voltage (VCC or VBATT)
  • Precision Monitoring of +5.0V, +3.3V, +3.0V, and +2.5V Power-Supply Voltages
  • Debounced Manual Reset Input (MAX6361)
  • Watchdog Timer with 1.6s Timeout Period (MAX6362)
  • Battery-On Output Indicator (MAX6363)
  • Auxiliary User-Adjustable RESET IN (MAX6364)
  • Three Available Output Structures
    • Push-Pull Active-Low RESET, Open-Drain Active-Low RESET, Open-Drain RESET
  • RESET/Active-Low RESET Valid Down to 1.2V Guaranteed (VCC or VBATT)
  • Power-Supply Transient Immunity
  • 150ms (min) Reset Timeout Period
  • Small 6-Pin SOT23 Package
MAX6361, MAX6362, MAX6363, MAX6364: Typical Operating Circuit
MAX6361, MAX6362, MAX6363, MAX6364: Typical Operating Circuit
Applications/Uses
  • Computers: Desktop, Workstation, Server
  • Notebook Computers
  • Palmtop Computers
  • Pen Entry Palmtops
  • Portable Patient Monitoring/Drug Delivery
  • Portable Test Meters
  • POS Terminals
  • Printers and Faxes
  • Programmable Logic Controllers
DataSheet
titleDownload file
MAX6361-MAX6364P Data SheetMAX6361-MAX6364P.pdf
Parametrics
Part NumberReset Thresh.
(V)
Reset OutICC
(µA)
Oper. Temp.
(°C)
Package/PinsBudgetary
Price
maxSee Notes
MAX6361H2.5 to 3.3
3.3 to 5.5
Active High
Open Drain
50-40 to +85SOT/6$3.27 @1k
MAX6361L2.5 to 3.3
3.3 to 5.5
Active Low
Push-Pull
SOT/6$1.98 @1k
MAX6361P2.5 to 3.3
3.3 to 5.5
Active Low
Open Drain
SOT/6$2.59 @1k
MAX6362H2.5 to 3.3
3.3 to 5.5
Active High
Open Drain
SOT/6$3.27 @1k
MAX6362L2.5 to 3.3
3.3 to 5.5
Active Low
Push-Pull
SOT/6$2.63 @1k
MAX6362P2.5 to 3.3
3.3 to 5.5
Active Low
Open Drain
SOT/6$2.26 @1k
MAX6363H2.5 to 3.3
3.3 to 5.5
Active High
Open Drain
SOT/6$3.27 @1k
MAX6363L2.5 to 3.3
3.3 to 5.5
Active Low
Push-Pull
SOT/6$1.73 @1k
MAX6363P2.5 to 3.3
3.3 to 5.5
Active Low
Open Drain
SOT/6$2.10 @1k
MAX6364L1.2 to 1.8
1.8 to 2.5
2.5 to 3.3
3.3 to 5.5
Active Low
Push-Pull
SOT/6$2.63 @1k
MAX6364P1.2 to 1.8
1.8 to 2.5
2.5 to 3.3
3.3 to 5.5
Active Low
Open Drain
SOT/6$2.26 @1k
Quality and Environmental Data
Ordering Information
Part NumberStatusRecommended ReplacementPackageTempRoHS
MAX6363HUT23+TActiveSOT,;6 pin;9 mm²-40°C to +85°CLead Free
MAX6363HUT23-TNo Longer AvailableMAX6363HUT23+TSOT,;6 pin;9 mm²-40°C to +85°CNo
MAX6363HUT26+ActiveSOT,;6 pin;9 mm²-40°C to +85°CLead Free
MAX6363HUT26+TActiveSOT,;6 pin;9 mm²-40°C to +85°CLead Free
MAX6363HUT26-TNo Longer AvailableMAX6363HUT26+TSOT,;6 pin;9 mm²-40°C to +85°CNo
MAX6363HUT29+TActiveSOT,;6 pin;9 mm²-40°C to +85°CLead Free
MAX6363HUT29-TNo Longer AvailableMAX6363HUT29+TSOT,;6 pin;9 mm²-40°C to +85°CNo
MAX6363HUT31+ActiveSOT,;6 pin;9 mm²-40°C to +85°CLead Free
MAX6363HUT31+TActiveSOT,;6 pin;9 mm²-40°C to +85°CLead Free
MAX6363HUT31-TNo Longer AvailableMAX6363HUT31+TSOT,;6 pin;9 mm²-40°C to +85°CNo
Part NumberStatusRecommended ReplacementPackageTempRoHS
MAX6363HUT44+TActiveSOT,;6 pin;9 mm²-40°C to +85°CLead Free
MAX6363HUT44-TNo Longer AvailableMAX6363HUT44+TSOT,;6 pin;9 mm²-40°C to +85°CNo
MAX6363HUT46+TActiveSOT,;6 pin;9 mm²-40°C to +85°CLead Free
MAX6363HUT46-TNo Longer AvailableMAX6363HUT46+TSOT,;6 pin;9 mm²-40°C to +85°CNo
MAX6361-MAX6364P.pdf MAX6364P
MAX6363P.pdf MAX6363P
MAX6361-MAX6364P.pdf MAX6364P