Fan Controllers | ADT7490

带 PECI 接口的远程温度监控器和风扇控制器

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ADT7490 是一款温度监控器和多 PWM 风扇控制器，适用于需要主动式系统冷却的噪声敏感或功率敏感型应用。ADT7490 包括一个本地温度传感器、两个远程温度传感器，带串联电阻抑制功能，通过 PECI 接口监控 CPU 温度。ADT7490 可以通过低频或高频驱动信号驱动风扇，并测量和控制多达四个风扇的速度，从而以最低的速度运行，最大程度上降低噪音。

  • Thermal Management

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

  • 1 local on-chip temperature sensor
  • 2 remote temperature sensors
  • 3-current external temperature sensors with series resistance cancellation (SRC)
  • PECI interface for CPU thermal information and support of up to 4 PECI inputs on one pin
  • 3 high frequency or low frequency PWM outputs for use with 3-wire or 4-wire fans
  • 4 TACH inputs to measure fan speed
  • OS independent automatic fan speed control based on thermal information
  • Dynamic TMIN control mode to optimize system acoustics
  • Default startup at 100% PWM for all fans for robust operation

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ADT7490ARQZ-REEL

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CAD Model

Pb

A

H

P

QSOP-24

492B-01

3

260

REEL

2500

Y

SMBus

5

3

3.6

-40

125

$1.5166

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可靠性数据

Die Related Summary Data

Device: ADT7490ARQZ-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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