Fan Controllers | ADT7476

远程热控制器和电压监测器

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概览

ADT7476 控制器是热监控器和多个 PWM 风扇控制器，适用于要求主动系统冷却的噪声敏感或功率敏感型应用。ADT7476 可以使用低频率或高频率驱动信号驱动风扇，监控最多两个远程传感器二极管的温度及其自身内部温度，还可以测量和控制最多四个风扇的速度以便它们以尽可能低的速度运行，实现最小噪声。

  • 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)

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T Min (°C)

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Reference Price

ADT7476ARQZ-REEL

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CAD Model

Pb

A

H

P

QSOP-24

492B-01

3

260

REEL

2500

Y

SMBus

3

3

3.6

-40

125

$1.148

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可靠性数据

Die Related Summary Data

Device: ADT7476ARQZ-REEL

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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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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