CAT809: Voltage Supervisor, Push-Pull, Active Low

The CAT809 is a µP supervisory circuits that monitor power supplies in digital systems. The CAT809 is a direct replacements for the MAX809 in applications operating over the industrial temperature range. This device generates 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. The underlying floating gate technology, AE²™ used by ON Semiconductor, makes it possible to offer any custom reset threshold value. Seven industry standard threshold levels are offered to support +5.0 V, +3.3 V, +3.0 V and +2.5 V systems.The CAT809 features a push-pull RESET output (active LOW) and the CAT810 features a push-pull RESET output (active HIGH). 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. The CAT809 is available in both the compact 3-pin SOT-23 and SC70 packages.

Features
  • Precision monitoring of +5.0V (-5%, -10%, -20%), +3.3V (-5%, -10%), +3.0V (-10%) and +2.5V (-5%) power supplies
  • Offered in three output configurations: - CAT809: Push-Pull Active LOW reset
  • Direct replacements for the MAX809 in applications operating over the industrial temperature range
  • Reset valid down to VCC = 1.0 V
  • 6 μA power supply current
  • Power supply transient immunity
  • Industrial temperature range: -40˚C to +85˚C
  • Available in RoHS-compliant SOT-23 and SC70 packages
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 SupervisorsCAT809/D (121.0kB)33
Package Drawings (2)
Document TitleDocument ID/SizeRevision
SC-70, 3 Lead, 1.25x2419AB (56.5kB)revo
SOT-23, 3 Lead, 1.3x2.9527AG (56.3kB)revo
Order Information
ProductStatusCompliancePackageMSL*ContainerBudgetary Price/Unit
CAT809HTBI-GT3Last ShipmentsPb-free Halide freeSOT-23-3527AG1Tape and Reel3000
CAT809JSDI-GT3Last ShipmentsPb-free Halide freeSC-70-3419AB1Tape and Reel3000
CAT809JTBI-GT3ActivePb-free Halide freeSOT-23-3527AG1Tape and Reel3000$0.2267
CAT809LSDI-GT3Last ShipmentsPb-free Halide freeSC-70-3419AB1Tape and Reel3000
CAT809LTBI-GT3ActivePb-free Halide freeSOT-23-3527AG1Tape and Reel3000$0.2267
CAT809MSDI-GT3Last ShipmentsPb-free Halide freeSC-70-3419AB1Tape and Reel3000
CAT809MTBI-GT3ActivePb-free Halide freeSOT-23-3527AG1Tape and Reel3000$0.2267
CAT809RSDI-GT3Last ShipmentsPb-free Halide freeSC-70-3419AB1Tape and Reel3000
CAT809RTBI-GT3ActivePb-free Halide freeSOT-23-3527AG1Tape and Reel3000$0.2267
CAT809SSDI-GT3Last ShipmentsPb-free Halide freeSC-70-3419AB1Tape and Reel3000
CAT809STBI-GT3ActivePb-free Halide freeSOT-23-3527AG1Tape and Reel3000$0.2267
CAT809TSDI-GT3Last ShipmentsPb-free Halide freeSC-70-3419AB1Tape and Reel3000
CAT809TTBI-GT3ActivePb-free Halide freeSOT-23-3527AG1Tape and Reel3000$0.2267
CAT809VTBI-GT3ActivePb-free Halide freeSOT-23-3527AG1Tape and Reel3000$0.176
CAT809ZSDI-GT3Last ShipmentsPb-free Halide freeSC-70-3419AB1Tape and Reel3000
CAT809ZTBI-GT3ActivePb-free Halide freeSOT-23-3527AG1Tape and Reel3000$0.2267
Specifications
ProductVoltages MonitoredVCC Max (V)V(TO) Typ (V)IQ Typ (µA)Reset Active StateReset TimerManual ResetWatchdog Timer
CAT809JTBI-GT315.548LowYesNoNo
CAT809LTBI-GT315.54.638LowYesNoNo
CAT809MTBI-GT315.54.388LowYesNoNo
CAT809RTBI-GT315.52.636LowYesNoNo
CAT809STBI-GT315.52.936LowYesNoNo
CAT809TTBI-GT315.53.086LowYesNoNo
CAT809VTBI-GT315.51.66LowYesNoNo
CAT809ZTBI-GT315.52.326LowYesNoNo
3-Pin Microprocessor Power Supply Supervisors (121.0kB) CAT809
SC-70, 3 Lead, 1.25x2 PACDN042
SOT-23, 3 Lead, 1.3x2.9 PACDN042
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