CT7428 Unfold All
Product Description
CT7428 is a 9-channels (8-channels Remote and 1-channel Local) Temperature Sensor with±1°C Accuracy and SMBus Digital Interface. It is ideally used in Temperature Sensing and Monitoring Systems, such as Computer, Server and Telecom Equipment System etc.
Product Features

l  Operation Voltage: 1.7V to 5.5V

l  Average Operating Current: 45uA (Typ.)for all channels one time measurement at VCC = 3.3V

l  Standby Current: 3.0uA (Typ.)

l  Temperature Accuracy without calibration for all channels:±1oC from 0oC to 50oC

l  13 bit ADC for 0.0625oC resolution

l  Digital interface compatible with SMBus and I2C

l  PEC feature to improve communication reliability and robustness

l  Series Resistance Cancellation, n-Factor correction, Offset correction and Diode fault detection for each remote channel.

l  Individually programmable THERM limit temperature for any of 9 channels with share Hysterisis data

l  Register lock feature to protection register data

l  8 slave addresses available by setting AD0 pin

l  Temperature Range:

-40oC to 125oC for sensor chip

-50oC to 150oC for remote diodes


l   [正敏1]for all-channel at 1Con/s, VCC = 3.3V

 


Typical Application
Functional Block Diagram
Package

QFN3x3-16

Datasheet
Ordering Information

 

Order PN

Accuracy

Green1

Package

Marking ID2

Packing

MPQ

Operation Temperature

CT7428QNR

±1oC

Halogen free

QFN3x3-16

7428

YWWAXX

Tape & Reel

3,000

-40oC~+125oC

CT7428QNR-A

±1oC

Halogen free

QFN3x3-16

7428

YWWAXX

Tape & Reel

3,000

-40oC~+125oC

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版权所有 ©Sensylink有限公司2023
沪ICP备17014742号-1 | 隐私策略