NCP803: Voltage Supervisor, 3-Pin, Microprocessor, Very Low Supply Current, Reset Monitor

The MAX803/NCP803 is a cost-effective system supervisor circuit designed to monitor VCC in digital systems and provide a reset signal to the host processor when necessary. No external components are required. The reset output is driven active within 10 µsec of VCC falling through the reset voltage threshold. Reset is maintained active for a timeout period which trimmed by factor after VCC rises above the reset threshold. The MAX803/NCP803 has an open drain active-low RESET(bar) output. The output of the MAX803/NCP803 is guaranteed valid down to VCC = 1.0 V and is available in a SOT-23 and SC-70 package.The MAX803/NCP803 is optimized to reject fast transient glitches on the VCC line. Low supply current of 0.5 µA (VCC = 3.3 V) make this device suitable for battery powered applications.

Features
  • Precision VCC Monitor for 1.5 V, 1.8V, 2.5 V, 3.0 V, 3.3 V and 5.0 V supplies
  • Precision Monitoring Voltages from 1.2 V to 4.9 V Available in 100 mV Steps
  • Four Guaranteed Minimum RESET Output Duration(1ms, 20ms, 100ms and 140ms)
  • RESET Output Guaranteed to VCC = 1.0 V
  • Low 0.5 uA Supply Current
  • VCC Transient Immunity
  • Small SOT-23 and SC-70 Package
  • No External Components
  • Wide Operating Temperature: -40°C to 105°C
Applications
  • Computers
  • Embedded Systems
  • Battery Powered Equipment
  • Critical A Power Supply Monitoring
Data Sheets (1)
Document TitleDocument ID/SizeRevisionRevision Date
Very Low Supply Current 3-Pin Microprocessor Reset MonitorMAX803/D (117kB)10Oct, 2016
Package Drawings (1)
Document TitleDocument ID/SizeRevision
SOT-23318-08 (33.4kB)AR
Order Information
ProductStatusCompliancePackageMSL*ContainerBudgetary Price/Unit
NCP803SN120T1GActivePb-free Halide freeSOT-23-3318-081Tape and Reel3000$0.236
NCP803SN160T1GActivePb-free Halide freeSOT-23-3318-081Tape and Reel3000$0.236
NCP803SN232T1GActivePb-free Halide freeSOT-23-3318-081Tape and Reel3000$0.236
NCP803SN263T1GActivePb-free Halide freeSOT-23-3318-081Tape and Reel3000$0.236
NCP803SN293D1T1GActivePb-free Halide freeSOT-23-3318-081Tape and Reel3000$0.1467
NCP803SN293D2T1GActivePb-free Halide freeSOT-23-3318-081Tape and Reel3000Contact BDTIC
NCP803SN293D3T1GActivePb-free Halide freeSOT-23-3318-081Tape and Reel3000$0.1467
NCP803SN293T1GActivePb-free Halide freeSOT-23-3318-081Tape and Reel3000$0.236
NCP803SN293T3GActivePb-free Halide freeSOT-23-3318-081Tape and Reel10000Contact BDTIC
NCP803SN308T1GActivePb-free Halide freeSOT-23-3318-081Tape and Reel3000$0.236
NCP803SN400T1GActivePb-free Halide freeSOT-23-3318-081Tape and Reel3000Contact BDTIC
NCP803SN438T1GActivePb-free Halide freeSOT-23-3318-081Tape and Reel3000$0.236
NCP803SN463D1T1GActivePPAP Capable Pb-free Halide freeSOT-23-3318-081Tape and Reel3000$0.236
NCP803SN463T1GActivePb-free Halide freeSOT-23-3318-081Tape and Reel3000$0.236
NCP803SN160T1ObsoleteSOT-23-3318-081Tape and Reel3000
NCP803SN232T1ObsoleteSOT-23-3318-081Tape and Reel3000
NCP803SN263T1ObsoleteSOT-23-3318-081Tape and Reel3000
NCP803SN293T1ObsoleteSOT-23-3318-081Tape and Reel3000
NCP803SN293T3ObsoleteSOT-23-3318-081Tape and Reel10000
NCP803SN308T1ObsoleteSOT-23-3318-081Tape and Reel3000
NCP803SN438T1ObsoleteSOT-23-3318-081Tape and Reel3000
NCP803SN463T1ObsoleteSOT-23-3318-081Tape and Reel3000
Specifications
ProductVoltages MonitoredVCC Max (V)V(TO) Typ (V)IQ Typ (µA)Reset Active StateReset TimerManual ResetWatchdog Timer
NCP803SN120T1G15.51.20.5LowYesNoNo
NCP803SN160T1G15.51.60.5LowYesNoNo
NCP803SN232T1G15.52.320.5LowYesNoNo
NCP803SN263T1G15.52.630.5LowYesNoNo
NCP803SN293D1T1G15.52.930.5LowYesNoNo
NCP803SN293D2T1G15.52.930.5LowYesNoNo
NCP803SN293D3T1G15.52.930.5LowYesNoNo
NCP803SN293T1G15.52.930.5LowYesNoNo
NCP803SN293T3G15.52.930.5LowYesNoNo
NCP803SN308T1G15.53.080.5LowYesNoNo
NCP803SN400T1G15.540.5LowYesNoNo
NCP803SN438T1G15.54.380.5LowYesNoNo
NCP803SN463D1T1G15.54.630.5LowYesNoNo
NCP803SN463T1G15.54.630.5LowYesNoNo
Very Low Supply Current 3-Pin Microprocessor Reset Monitor (117kB) NCP803
SOT-23 CM1214A