±1°C 温度监控器,有串联电阻抑制功能

Favorite

概览

NCT72 是一款双沟道数字式温度计和低温/高温警报器,适用于 PC 和热管理系统。它与 NCT1008 可以实现引脚和寄存器兼容,但 NCT72 支持用户将 /ALERT 引脚拉至 1.8V,不会提高器件的 Idd。NCT72 具有串联电阻抑制功能,可从温度结果中自动消除温度监控二极管高达 1.5 kΩ(典型值)的串联电阻,从而滤除噪声。NCT72 有一个可配置的 /ALERT 输出,以及可切换的宽广温度测量范围。NCT72 的远程热二极管温度测量精度为 ±1°C,环境温度测量精度为 ±3°C。温度测量范围默认为 0°C 至 +127°C,与 NCT1008 兼容,但它可以切换为更宽的测量范围 -64°C 至 +191°C。NCT72 通过 2 线串行接口进行通信,符合系统管理总线 (SMBus/I2C) 标准。NCT72 的默认 SMBus/I2C 地址是 0x4C。NCT72D 的 SMBus/I2C 地址是 0x4D。如同一 SMBus/I2C 上使用了一个以上的 NCT72,地址会非常有用。当片上或远程温度超出范围时,/ALERT 输出会发出信号。/THERM 输出是一个比较器输出,可以控制冷却风扇的开关。如果需要,可以将 /ALERT 输出重新配置为次级 /THERM 输出。

  • Thermal Management
  • Notebook and Desktop Computers
  • Game Consoles
  • LCD TVs
  • Occupancy Sensors
  • DSL Line Cards
  • Dishwashers
  • Refrigerators
  • Vacuum Cleaners
  • Induction Cookers
  • RFID Readers
  • On-Chip and Remote Temperature Sensor
  • 0.25°C Resolution/1°C Accuracy on Remote Channel
  • 1°C Resolution/1°C Accuracy on Local Channel
  • Series Resistance Cancellation up to 1.5 kΩ
  • Extended, Switchable Temperature Measurement Range 0°C to +127°C (Default) or -64°C to +191°C
  • Pin and Register Compatible with NCT1008
  • Remote /THERM limit of 108°C
  • 2-Wire SMBus/I2C Serial Interface with SMBus Alert Support
  • Programmable Over/Undertemperature Limits
  • Offset Registers for System Calibration
  • Up to Two Overtemperature Fail-Safe /THERM Outputs
  • 240 µA Operating Current, 5 µA Standby Current
  • Compatible with 1.8 V Logic

Product List

If you wish to buy products or product samples, please log in to your onsemi account.

搜寻

Close Search

产品:

2

分享

Product Groups:

Orderable Parts:

2

产品

状况

CAD Models

Compliance

Package Type

Case Outline

MSL Type

MSL Temp (°C)

Container Type

Container Qty.

ON Target

Sensor Type

Data Transmission Standard

ICC Max (mA)

VCC Min (V)

VCC Max (V)

T Min (°C)

T Max (°C)

Temperature Error (°C)

Reference Price

NCT72CMTR2G

Loading...

Active

CAD Model

Pb

A

H

P

WDFN-8

1

260

REEL

3000

N

Local & Remote

I2C

0.35

2.8

3.6

-40

125

±1

$1.1982

More Details

NCT72DMNR2G

Loading...

Active

CAD Model

Pb

A

H

P

DFN-8

1

260

REEL

3000

N

Local & Remote

I2C

0.35

2.8

3.6

-40

125

±1

$0.5764

More Details

Show More

1-25 of 25

Products per page

Jump to :