Remote Thermal Monitor and Fan Controller

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Overview

The ADT7473/ADT7473-1 controller is a thermal monitor and multiple PWM fan controller for noise sensitive or power sensitive applications requiring active system cooling. The ADT7473/ADT7473-1 can drive a fan using either a low or high frequency drive signal, monitor the temperature of up to two remote sensor diodes plus its own internal temperature, and measure and control the speed of up to four fans so they operate at the lowest possible speed for minimum acoustic noise.

  • Thermal Management
  • Notebook and Desktop Computers
  • Servers
  • Game Consoles
  • RFID Readers
  • Controls and monitors up to 4 fans
  • High and low frequency fan drive signal
  • 1 on-chip and 2 remote temperature sensors
  • Series resistance cancellation on the remote channel
  • Extended temp measurement range, up to 191°C
  • Dynamic TMIN control mode optimizes system acoustics intelligently
  • Automatic fan speed control mode controls system cooling based on measured temperature
  • Enhanced acoustic mode dramatically reduces user perception of changing fan speeds
  • Thermal protection feature via THERM output
  • Thermal control circuit via THERM input
  • 3-wire and 4-wire fan speed measurement

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Orderable Parts:

6

Product

Status

ECAD Models

Compliance

Package Type

Case Outline

MSL Type

MSL Temp (°C)

Container Type

Container Qty.

ON Target

Data Transmission Standard

ICC Max (mA)

VCC Min (V)

VCC Max (V)

T Min (°C)

T Max (°C)

Pricing ($/Unit)

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ADT7473ARQZ-REEL

Active

Pb

A

H

P

QSOP-16

1

260

REEL

2500

Y

SMBus

3

3

3.6

-40

125

$1.2004

More Details

ADT7473ARQZ-1RL

Active

Pb

A

H

P

QSOP-16

1

260

REEL

2500

N

SMBus

3

3

3.6

-40

125

$1.1333

More Details

ADT7473ARQZ-1R7

Obsolete

Pb

A

H

P

QSOP-16

1

260

REEL

1000

N

SMBus

3

3

3.6

-40

125

Price N/A

More Details

ADT7473ARQZ-RL7

Obsolete

Pb

A

H

P

QSOP-16

1

260

REEL

1000

N

SMBus

3

3

3.6

-40

125

Price N/A

More Details

ADT7473ARQZ

Obsolete

Pb

A

H

P

QSOP-16

1

260

TUBE

98

N

SMBus

3

3

3.6

-40

125

Price N/A

More Details

ADT7473ARQZ-001

Obsolete

Pb

A

H

P

QSOP-16

1

260

TUBE

98

N

SMBus

3

3

3.6

-40

125

Price N/A

More Details

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