CAT803: Voltage Supervisor, Open Drain, Active Low

The CAT803 is a uP supervisory circuits that monitor power supplies in digital systems. The CAT803 is a direct replacement for the MAX803 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, Analog EEPROM 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 CAT803 has an open-drain RESET output (active LOW). The CAT803 requires 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.The CAT803 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: - CAT803: Open-Drain Active LOW reset
  • Direct replacements for the MAX803 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
  • These Devices are Pb Free and are RoHS Compliant
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 SupervisorsCAT803/D (86kB)34
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
CAT803JSDI-GT3Last ShipmentsPb-free Halide freeSC-70-3419AB1Tape and Reel3000
CAT803JTBI-GT3Last ShipmentsPb-free Halide freeSOT-23-3527AG1Tape and Reel3000
CAT803LSDI-GT3Last ShipmentsPb-free Halide freeSC-70-3419AB1Tape and Reel3000
CAT803LTBI-GT3Last ShipmentsPb-free Halide freeSOT-23-3527AG1Tape and Reel3000
CAT803MSDI-GT3Last ShipmentsPb-free Halide freeSC-70-3419AB1Tape and Reel3000
CAT803MTBI-GT3Last ShipmentsPb-free Halide freeSOT-23-3527AG1Tape and Reel3000
CAT803RSDI-GT3Last ShipmentsPb-free Halide freeSC-70-3419AB1Tape and Reel3000
CAT803RTBI-GT3Last ShipmentsPb-free Halide freeSOT-23-3527AG1Tape and Reel3000
CAT803SSDI-GT3ActivePb-free Halide freeSC-70-3419AB1Tape and Reel3000$0.3333
CAT803STBI-GT3Last ShipmentsPb-free Halide freeSOT-23-3527AG1Tape and Reel3000
CAT803TSDI-GT3Last ShipmentsPb-free Halide freeSC-70-3419AB1Tape and Reel3000
CAT803TTBI-GT3Last ShipmentsPb-free Halide freeSOT-23-3527AG1Tape and Reel3000
CAT803ZSDI-GT3Last ShipmentsPb-free Halide freeSC-70-3419AB1Tape and Reel3000
CAT803ZTBI-GT3Last ShipmentsPb-free Halide freeSOT-23-3527AG1Tape and Reel3000
Specifications
ProductVoltages MonitoredVCC Max (V)V(TO) Typ (V)IQ Typ (µA)Reset Active StateReset TimerManual ResetWatchdog Timer
CAT803SSDI-GT315.52.936LowYesNoNo
3-Pin Microprocessor Power Supply Supervisors (86kB) CAT803
SC-70, 3 Lead, 1.25x2 PACDN042
SOT-23, 3 Lead, 1.3x2.9 PACDN042