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参数资料
| 型号： | NCT1008DMT3R2G |
| 厂商： | ON SEMICONDUCTOR |
| 元件分类： | 模拟信号调理 |
| 英文描述： | %2B-1℃ temperature monitor with series resistance cancellation |
| 中文描述： | SPECIALTY ANALOG CIRCUIT, DSO8 |
| 封装： | 2 X 2 MM, 0.50 MM PITCH, LEAD FREE, DFN-8 |
| 文件页数： | 1/20页 |
| 文件大小： | 251K |
| 代理商： | NCT1008DMT3R2G |
Semiconductor Components Industries, LLC, 2010
October, 2010 Rev. 4
1
Publication Order Number:
NCT1008/D
NCT1008
+15C Temperature Monitor
with Series Resistance
Cancellation
The NCT1008 is a dualchannel digital thermometer and
undertemperature/overtemperature alarm, intended for use in PCs and
thermal management systems. It is registercompatible with the
ADM1032 and ADT7461. A feature of the NCT1008 is series
resistance cancellation, where up to 1.5 k
W (typical) of resistance in
series with the temperature monitoring diode can be automatically
cancelled from the temperature result, allowing noise filtering. The
NCT1008 has a configurable ALERT output and an extended,
switchable temperature measurement range.
The NCT1008 can measure the temperature of a remote thermal
diode accurate to
±1°C and the ambient temperature accurate to ±3°C.
The temperature measurement range defaults to 0
°C to +127°C,
compatible with the ADM1032, but it can be switched to a wider
measurement range of 64
°C to +191°C.
The NCT1008 communicates over a 2wire serial interface,
compatible with system management bus (SMBus/I2C) standards. The
default SMBus/I2C address of the NCT1008 is 0x4C. An NCT1008D is
available with an SMBus/I2C address of 0x4D. This is useful if more
than one NCT1008 is used on the same SMBus/I2C.
An ALERT output signals when the onchip or remote temperature is
out of range. The THERM output is a comparator output that allows
on/off control of a cooling fan. The ALERT output can be reconfigured
as a second THERM output, if required.
Features
OnChip 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 kW
Extended, Switchable Temperature Measurement Range
0
°C to +127°C (Default) or –64°C to +191°C
RegisterCompatible with ADM1032 and ADT7461
Remote THERM Limit of 108°C
2Wire SMBus/I2C Serial Interface with SMBus Alert Support
Programmable Over/Undertemperature Limits
Offset Registers for System Calibration
Up to Two Overtemperature FailSafe THERM Outputs
Small 8Lead DFN
240 mA Operating Current, 5 mA Standby Current
Compatible with 1.8 V Logic
PbFree Packages are Available
Applications
Smart Phones
Desktop and Notebook Computers
Smart Batteries
Automotive
Embedded Systems
MARKING DIAGRAMS
http://onsemi.com
PIN ASSIGNMENT
GND
ALERT/THERM2
THERM
1
2
3
4
8
7
6
5
(Top View)
DFN8
CASE 506BJ
SCLK
SDATA
See detailed ordering and shipping information in the package
dimensions section on page 18 of this data sheet.
ORDERING INFORMATION
NCT
1008x
ALYWG
G
1
8
8x
= Device Code (Where x = C or D)
M
= Date Code
G
= PbFree Package
x
= C or D
A
= Assembly Location
L
= Wafer Lot
Y
= Year
W
= Work Week
G
= PbFree Package
(Note: Microdot may be in either location)
1
WDFN8
CASE 511AT
D+
D
VCC
1
8xMG
G
1
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