Fan Controllers | ADT7476

リモート・サーマル・コントローラおよび電圧モニタ

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Overview

ADT7476 コントローラは、能動的なシステム冷却を必要とするノイズや電力に敏感なアプリケーションに対応した、サーマル・モニタであり、複数の PWM ファンのコントローラでもあります。ADT7476 は、低または高周波ドライブ信号を使用してファンを駆動し、最大 2 個のリモート・センサ・ダイオードの温度と自身の内部温度のモニタしながら、最大 4 個のファンの速度の測定とコントロールを行います。これにより、音響ノイズを最小限に抑えながら、できるだけ低速でファンを動作させることができます。

  • Thermal Management

  • Notebook and Desktop Computers
  • Servers
  • Game Consoles
  • RFID Readers

  • Monitors up to 5 Voltages
  • Controls and Monitors up to 4 Fans
  • High and Low Frequency Fan Drive Signal
  • 1 On-chip and 2 Remote Temperature Sensors
  • Extended temp measurement range, up to 191°C
  • 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
  • Monitors performance impact of Intel® Pentium®4 processor
  • Thermal control circuit via THERM input
  • 3-wire and 4-wire fan speed measurement
  • Limit Comparison of all Monitored Values

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ICC Max (mA)

VCC Min (V)

VCC Max (V)

T Min (°C)

T Max (°C)

Reference Price

ADT7476ARQZ-REEL

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Active

CAD Model

Pb

A

H

P

QSOP-24

492B-01

3

260

REEL

2500

SMBus

3

3

3.6

-40

125

$1.148

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信頼性データ

Die Related Summary Data

Device: ADT7476ARQZ-REEL

Equivalent to wafer fab process: CMOS SUB

製品技術

製品技術

等価デバイス時間

MTBF/MTTF (時間)

FITS

CMOS SUB

2

920154574

172886033

5.78

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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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