Voltage Supervisor with Manual Reset and Watchdog

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Overview

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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Product

Status

CAD Models

Compliance

Package Type

Case Outline

MSL Type

MSL Temp (°C)

Container Type

Container Qty.

ON Target

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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Lifetime

CAD Model

Pb

A

H

P

TSOT-23-5

1

260

REEL

3000

N

1

5.5

2.63

6

Low

Yes

Yes

Yes

$0.32

More Details

CAT823STDI-GT3

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Last Shipments

CAD Model

Pb

A

H

P

TSOT-23-5

1

260

REEL

3000

N

1

5.5

2.93

6

Low

Yes

Yes

Yes

Price N/A

More Details

CAT823TTDI-GT3

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Active

CAD Model

Pb

A

H

P

TSOT-23-5

1

260

REEL

3000

N

1

5.5

3.08

6

Low

Yes

Yes

Yes

$0.2556

More Details

CAT823YTDI-GT3

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Last Shipments

CAD Model

Pb

A

H

P

TSOT-23-5

1

260

REEL

3000

N

1

5.5

2.19

6

Low

Yes

Yes

Yes

Price N/A

More Details

CAT823ZTDI-GT3

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Last Shipments

CAD Model

Pb

A

H

P

TSOT-23-5

1

260

REEL

3000

N

1

5.5

2.32

6

Low

Yes

Yes

Yes

Price N/A

More Details

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