CAT853: Voltage Supervisor, Open Drain, Active Low

The CAT853, CAT863, CAT859, and CAT869 are supervisory circuits that monitor power supplies in digital systems.These devices generate a reset signal, which is asserted while the power supply voltage is below a preset threshold level and for at least 140 ms after the power supply level has risen above that level. Industry standard threshold levels are offered to support +3.3 V or 5.0 V systems.The CAT859 and CAT869 feature a RESET push-pull output (active low) for the two pinout options.The CAT853 and CAT863 feature an open drain RESET output (active low). Both require a pull-up resistor on the RESET output.Fast transients on the power supply are ignored and the output is guaranteed to be in the correct state at VCC levels as low as 1.0 V.

Features
  • Precision monitoring of +3.3V (-5%, -10%), 5V (-10% Power Supplies)
  • Active Low Reset Output
  • Reset valid down to VCC = 1.0V
  • 6μA power supply current
  • Power supply transient immunity
  • Industrial temperature range: -40°C to +85°C
  • These Devices are PbFree and are RoHS Compliant
  • SOT-23 Package
Applications
  • Computers
  • Servers
  • Laptops
  • Cable modems
  • Wireless communications
  • Embedded control systems
  • White goods
  • Power meters
  • Intelligent instruments
  • PDAs and handheld equipment
Data Sheets (1)
Document TitleDocument ID/SizeRevisionRevision Date
3-Pin Microprocessor Power Supply SupervisorCAT853/D (111.0kB)10
Package Drawings (2)
Document TitleDocument ID/SizeRevision
SOT-23318-08 (33.4kB)AR
SOT-23, 3 Lead, 1.3x2.9527AG (56.3kB)revo
Order Information
ProductStatusCompliancePackageMSL*ContainerBudgetary Price/Unit
CAT853CTBI-GT3Last ShipmentsPb-free Halide freeSOT-23-3527AG1Tape and Reel3000
CAT853FTBI-GT3ObsoletePb-free Halide freeSOT-23-3527AG1Tape and Reel3000$0.36
CAT853JTBI-T3Last ShipmentsPb-free Halide freeSOT-23-3318-081Tape and Reel3000
CAT853LTBI-T3Last ShipmentsPb-free Halide freeSOT-23-3318-081Tape and Reel3000
CAT853MTBI-GT3Last ShipmentsPb-free Halide freeSOT-23-3527AG1Tape and Reel3000
CAT853MTBI-T3Last ShipmentsPb-free Halide freeSOT-23-3318-081Tape and Reel3000
CAT853RTBI-T3Last ShipmentsPb-free Halide freeSOT-23-3318-081Tape and Reel3000
CAT853STBI-GT3Last ShipmentsPb-free Halide freeSOT-23-3527AG1Tape and Reel3000
CAT853STBI-T3ActivePb-free Halide freeSOT-23-3527AG1Tape and Reel3000$0.324
CAT853TTBI-GT3ActivePb-free Halide freeSOT-23-3527AG1Tape and Reel3000$0.36
CAT853TTBI-T3Last ShipmentsPb-free Halide freeSOT-23-3527AG1Tape and Reel3000
CAT853ZTBI-T3Last ShipmentsPb-free Halide freeSOT-23-3318-081Tape and Reel3000
Specifications
ProductVoltages MonitoredVCC Max (V)V(TO) Typ (V)IQ Typ (µA)Reset Active StateReset TimerManual ResetWatchdog Timer
CAT853STBI-T315.52.936LowYesNoNo
CAT853TTBI-GT315.53.086LowYesNoNo
3-Pin Microprocessor Power Supply Supervisor (111.0kB) CAT853
SOT-23, 3 Lead, 1.3x2.9 PACDN042
SOT-23 CM1214A