Voltage Supervisors | CAT823

Voltage Supervisor with Manual Reset and Watchdog

Active, Not Rec

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The CAT823 and CAT824 provide basic reset and monitoring functions for the electronic systems. Each device monitors the system voltage and maintains a reset output until that voltage reaches the device's specified trip value and then maintains the reset output active condition until the device's internal timer, after a minimum timer of 140 ms; to allow the systems power supply to stabilize.

The CAT823 and CAT824 also have a watchdog input which can be used to monitor a system signal and cause a reset to be issued if the signal fails to change state prior to a timeout condition.

The CAT823 also provides a manual reset input which can be used to initiate reset if pulled low. This input can be directly attached to a push-button or a processor signal.

  • Microprocessor and Microcontroller Based Systems
  • Intelligent Instruments
  • Control Systems
  • Critical μP Monitors
  • Portable Equipment

  • Automatically Restarts Microprocessor after Power Failure
  • Monitors Pushbutton for Eexternal Override
  • Accurate Under Voltage System Monitoring
  • Brownout Detection System Reset for use with 3.0, 3.3, and 5.0 Volt Systems
  • Pin and Function Compatible with the MAX823/24/25 Products
  • Operating Range from -40°C to +85°C
  • Available in TSOT-23 5-lead and SC-70 Packages
  • These Devices are Pb-Free, Halogen Free/BFR Free and are RoHS Compliant

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Case Outline

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Voltages Monitored

VCC Max (V)

V(TO) Typ (V)

IQ Typ (µA)

Reset Active State

Reset Timer

Manual Reset

Watchdog Timer

Reference Price

CAT823RTDI-GT3

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CAD Model

Pb

A

H

P

TSOT-23-5

419AE

1

260

REEL

3000

N

1

5.5

2.63

6

Low

Yes

Yes

Yes

Price N/A

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CAT823STDI-GT3

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CAD Model

Pb

A

H

P

TSOT-23-5

419AE

1

260

REEL

3000

N

1

5.5

2.93

6

Low

Yes

Yes

Yes

Price N/A

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CAT823TTDI-GT3

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Active, Not Rec

CAD Model

Pb

A

H

P

TSOT-23-5

419AE

1

260

REEL

3000

N

1

5.5

3.08

6

Low

Yes

Yes

Yes

$0.2556

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CAT823YTDI-GT3

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CAD Model

Pb

A

H

P

TSOT-23-5

419AE

1

260

REEL

3000

N

1

5.5

2.19

6

Low

Yes

Yes

Yes

Price N/A

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CAT823ZTDI-GT3

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Last Shipments

CAD Model

Pb

A

H

P

TSOT-23-5

419AE

1

260

REEL

3000

N

1

5.5

2.32

6

Low

Yes

Yes

Yes

Price N/A

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可靠性数据

Die Related Summary Data

Device: CAT823RTDI-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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Re-calculate Data

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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