Temperature Sensors | NCT75

数字温度传感器，带 2 线接口

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概览

NCT75 是一款两线串行连接可编程温度传感器，带高温/中断输出引脚，可发出超出限值状况信号。这是一个开路漏极引脚，可以比较器或中断模式运行。温度测量值使用一个高分辨率（12 位）、sigma-delta、模拟-数字转换器 (ADC) 转换为数字形式。该器件的运行温度范围为 -55°C 至 +125°C。 与 NCT75 的通信通过 SMBus/I2C 接口实现，该接口可兼容行业标准协议。三个地址选择引脚 A2、A1 和 A0 可用于将多达 8 个 NCT75 联接一个总线。通过此接口，可以访问这些 NCT75 内部寄存器。这些寄存器让用户能够读取当前温度、更改配置设置以及调节温度限值。 NCT75 具有 3.0 V 至 5.5 V 的宽电源电压范围。在 3.3 V 下的平均电源电流为 575 µA。它还提供节能关断模式。典型关断电流为 3 µA。NCT75 采用三种节省空间的封装 - DFN-8、 MSOP-8 和 SOIC-8，与 LM75 和 TCN75 可以实现引脚和寄存器完全兼容。

  • Thermal Management

  • Notebook and Desktop Computers
  • Game Consoles
  • Servers
  • LCD TVs
  • Refrigerators
  • Dishwashers
  • Induction Cookers
  • DSL Line Cards
  • Graphics Cards
  • Occupancy Sensors
  • RFID Readers
  • Vacuum Cleaners

  • 12-bit temperature-to-digital converter
  • Input voltage range from 3.0 V to 5.5 V
  • Temperature range from -55°C to +125°C
  • SMBus/I2C Interface
  • Overtemperature Indicator
  • Support for SMBus /ALERT
  • Shutdown mode for low power consumption
  • One-Shot Mode

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Package Type

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MSL Type

MSL Temp (°C)

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Data Transmission Standard

ICC Max (mA)

VCC Min (V)

VCC Max (V)

T Min (°C)

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Temperature Error (°C)

Reference Price

NCT75DMR2G

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CAD Model

Pb

A

H

P

Micro8

846A-02

1

260

REEL

3000

N

Local

SMBus

0.575

3

5.5

-55

125

±1

$0.2439

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NCT75DR2G

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CAD Model

Pb

A

H

P

SOIC-8

751-07

1

260

REEL

2500

N

Local

SMBus

0.575

3

5.5

-55

125

±1

$0.2675

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NCT75MNR2G

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Active

CAD Model

Pb

A

H

P

DFN-8

506AA

1

260

REEL

3000

N

Local

SMBus

0.575

3

5.5

-55

125

±1

$0.2933

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可靠性数据

Die Related Summary Data

Device: NCT75DMR2G

Equivalent to wafer fab process: ONC25

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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

ONC25

1

2712519294

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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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