参数资料
型号: SA56004AD,118
厂商: NXP Semiconductors
文件页数: 25/43页
文件大小: 516K
描述: IC TEMP SENSOR DIGITAL 8SOIC
标准包装: 2,500
功能: 温度监控系统(传感器)
传感器类型: 内部和外部
感应温度: -40°C ~ 125°C
精确度: ±3°C(最小值)
拓扑: ADC(三角积分型),多路复用器,寄存器库
输出类型: I²C?/SMBus?
输出警报:
输出风扇:
电源电压: 3 V ~ 5.5 V
工作温度: -40°C ~ 125°C
安装类型: 表面贴装
封装/外壳: 8-SOIC(0.154",3.90mm 宽)
供应商设备封装: 8-SO
包装: 带卷 (TR)
其它名称: 935274525118
SA56004AD-T
SA56004AD-T-ND
SA56004X
All information provided in this document is subject to legal disclaimers.
?NXP B.V. 2013. All rights reserved.
Product data sheet
Rev. 7  25 February 2013
25 of 43
NXP Semiconductors
SA56004X
Digital temperature sensor with overtemperature alarms
8.2   Power sequencing considerations
8.2.1   Power supply slew rate
When powering-up the SA56004X, ensure that the slew rate of V
DD
 is less than 18 mV/ms.
A slew rate larger than this may cause power-on reset issues and yield unpredictable
results.
8.2.2   Application circuit
Figure 11
 shows a typical application circuit for the SA56004X, using a discrete sensor
transistor connected via a shielded, twisted-pair cable. The pull-ups on SCLK, SDATA,
and ALERT
 are required only if they are not already provided elsewhere in the system.
The SCLK and SDATA pins of the SA56004X can be interfaced directly to the SMBus of
an I/O controller, such as the Intel 820 chip set.
 
8.3   Timing and firmware consideration
It is important not to violate the conversion timing on this part.
Regardless of timing, the device could report an erroneous reading, but NXP, nor
reporting customers have not encountered two subsequent erroneous readings in its
product reviews or evaluations. Masking of single or two sequential erroneous readings is
recommended by comparing several reads should there be a large prompt change in the
temperature reading before taking protective action.
(1)  Typical value, placed close to temperature sensor.
Fig 11.   Typical application circuit
V
DD
SCLK
D+
SDATA
D
ALERT
T_CRIT
GND
SA56004X
2  2  1
1
2
3
4
6
5
8
7
shielded twisted pair
100 nF
2.2 nF
(1)
V
DD
V
DD
FAN CONTROL
CIRCUIT
+5 V
mote sensor
N3904 (NPN), 2N3906 (PNP),
r similar standalone, ASIC or
icroprocessor thermal diode
R
10 k?/DIV>
R
10 k?/DIV>
R
10 k?/DIV>
R
10 k?/DIV>
V
DD
CLOCK
DATA
INT
SMBus
CONTROLLER
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SA56004ATK,118 功能描述:板上安装温度传感器 SMBUS-COMPATIBLE REM LOCL DIGI TEMP SENS RoHS:否 制造商:Omron Electronics 输出类型:Digital 配置: 准确性:+/- 1.5 C, +/- 3 C 温度阈值: 数字输出 - 总线接口:2-Wire, I2C, SMBus 电源电压-最大:5.5 V 电源电压-最小:4.5 V 最大工作温度:+ 50 C 最小工作温度:0 C 关闭: 安装风格: 封装 / 箱体: 设备功能:Temperature and Humidity Sensor