Voltage Supervisor, Undervoltage Sensing Circuit

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Overview

The MC33064/MC34064 is an undervoltage sensing circuit specifically designed for use as a reset controller in microprocessor-based systems. It offers the designer an economical solution for low voltagedetection with a single external resistor. The MC33064/MC34064 features a trimmed-in-package bandgap reference, and a comparator with precise thresholds and built-in hysteresis to prevent erratic reset operation. The open collector reset output is capable of sinking in excess of 10 mA, and operation is guaranteed down to 1.0 V input with low standby current. The MC devices are packaged in 3-pinTO-226AA, 8-pin SO-8,Micro-8 and 5pin SOT-23/TSOP-5 surface mount packages. The NCV device is packaged in SO-8 and TO-226AA.

Applications include direct monitoring of the 5.0 V MPU/logic power supply used in appliance, automotive, consumer and industrial equipment.

  • Trimmed-In-Package Temperature Compensated Reference
  • Comparator Threshold of 4.6 V at 25° C
  • Precise Comparator Thresholds Guaranteed Over Temperature
  • Comparator Hysteresis Prevents Erratic Reset
  • Reset Output Capable of Sinking in Excess of 10 mA
  • Internal Clamp Diode for Discharging Delay Capacitor
  • Guaranteed Reset Operation with 1.0 V Input
  • Low Standby Current
  • Economical TO-226AA, SO-8, Micro-8 and SOT-23/TSOP-5 Surface Mount Packages
  • Pb-Free Packages are Available

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7

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

MC33064D-5G

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Active

CAD Model

Pb

A

H

P

SOIC-8

1

260

TUBE

98

N

1

6.5

4.61

390

Low

No

No

No

$0.2131

More Details

MC33064D-5R2G

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Active

CAD Model

Pb

A

H

P

SOIC-8

1

260

REEL

2500

N

1

6.5

4.61

390

Low

No

No

No

$0.242

More Details

MC33064DM-5R2G

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Active

CAD Model

Pb

A

H

P

Micro8

1

260

REEL

4000

N

1

6.5

4.61

390

Low

No

No

No

$0.2131

More Details

MC33064P-5G

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Active

CAD Model

Pb

A

H

P

TO-92

NA

0

BLKBG

2000

N

1

6.5

4.61

390

Low

No

No

No

$0.242

More Details

MC33064P-5RAG

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Active

CAD Model

Pb

A

H

P

TO-92

NA

0

REEL

2000

N

1

6.5

4.61

390

Low

No

No

No

$0.2131

More Details

MC33064P-5RPG

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Active

CAD Model

Pb

A

H

P

TO-92

NA

0

FNFLD

2000

N

1

6.5

4.61

390

Low

No

No

No

$0.2131

More Details

MC33064SN-5T1G

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Active

CAD Model

Pb

A

H

P

TSOP-5 / SOT-23-5

1

260

REEL

3000

N

1

6.5

4.61

390

Low

No

No

No

$0.2874

More Details

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