Voltage Supervisors | CAT803

Voltage Supervisor, Open Drain, Active Low

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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.

  • Computers
  • Servers
  • Laptops
  • Cable modems
  • Wireless communications
  • Embedded control systems
  • White goods
  • Power meters
  • Intelligent instruments
  • PDAs and handheld equipment

  • 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

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V(TO) Typ (V)

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Reference Price

CAT803SSDI-GT3

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Last Shipments

CAD Model

Pb

A

H

P

SC-70-3 / SOT-323-3

419AB

1

260

REEL

3000

N

1

5.5

2.93

6

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No

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可靠性数据

Die Related Summary Data

Device: CAT803SSDI-GT3

Equivalent to wafer fab process: CMOS SUB

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等效器件小时

平均故障间隔时间/平均无故障时间（按小时计算）

FITS

CMOS SUB

2

920154574

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Data is based on the following assumptions.

Note: The temperature and confidence level may be adjusted to your requirements.

Disclaimer: A reliability FIT rate calculated using this tool shall not be used for any functional safety purpose. In case a raw FIT rate needs to be estimated for a component which is targeted to be used in a safety critical application (i.e. compliant to ISO 26262 standard) it should be calculated according to generic safety standards (IEC62380, IEC61709, SN29500, FIDES, etc.)

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