欢迎访问ic37.com |
会员登录 免费注册
发布采购

EMC1182-1-AIA-TR 参数 Datasheet PDF下载

EMC1182-1-AIA-TR图片预览
型号: EMC1182-1-AIA-TR
PDF下载: 下载PDF文件 查看货源
内容描述: 双通道1C温度传感器,带有beta补偿和1.8V的SMBus通信 [Dual Channel 1C Temperature Sensor with Beta Compensation and 1.8V SMBus Communications]
分类和应用: 传感器温度传感器通信
文件页数/大小: 48 页 / 565 K
品牌: SMSC [ SMSC CORPORATION ]
 浏览型号EMC1182-1-AIA-TR的Datasheet PDF文件第30页浏览型号EMC1182-1-AIA-TR的Datasheet PDF文件第31页浏览型号EMC1182-1-AIA-TR的Datasheet PDF文件第32页浏览型号EMC1182-1-AIA-TR的Datasheet PDF文件第33页浏览型号EMC1182-1-AIA-TR的Datasheet PDF文件第35页浏览型号EMC1182-1-AIA-TR的Datasheet PDF文件第36页浏览型号EMC1182-1-AIA-TR的Datasheet PDF文件第37页浏览型号EMC1182-1-AIA-TR的Datasheet PDF文件第38页  
Dual Channel 1°C Temperature Sensor with Beta Compensation and 1.8V SMBus Communications  
Datasheet  
If the temperature drops below the Therm Limit or Hardware Thermal Shutdown Limit, the counter is  
reset. If the programmed number of consecutive measurements exceed the Therm Limit or Hardware  
Thermal Shutdown Limit, and the appropriate channel is linked to the SYS_SHDN pin, the SYS_SHDN  
pin will be asserted low.  
Once the SYS_SHDN pin is asserted, the consecutive Therm counter will not reset until the  
corresponding temperature drops below the appropriate limit minus the corresponding hysteresis.  
Bits 6-4 - CTHRM[2:0] - Determines the number of consecutive measurements that must exceed the  
corresponding Therm Limit before the THERM pin is asserted. All temperature channels use this value  
to set the respective counters. The consecutive Therm counter is incremented whenever any  
measurement exceed the corresponding Therm Limit.  
If the temperature drops below the Therm Limit, the counter is reset. If a number of consecutive  
measurements above the Therm Limit occurs, the THERM pin is asserted low.  
Once the THERM pin has been asserted, the consecutive therm counter will not reset until the  
corresponding temperature drops below the Therm Limit minus the Therm Hysteresis value.  
The bits are decoded as shown in Table 6.12. The default setting is 4 consecutive out of limit  
conversions.  
Bits 3-1 - CALRT[2:0] - Determine the number of consecutive measurements that must have an out of  
limit condition or diode fault before the ALERT / THERM2 pin is asserted. Both temperature channels  
use this value to set the respective counters. The bits are decoded as shown in Table 6.12. The default  
setting is 1 consecutive out of limit conversion.  
Table 6.12 Consecutive Alert / Therm Settings  
NUMBER OF CONSECUTIVE OUT OF LIMIT  
2
1
0
MEASUREMENTS  
1
0
0
0
(default for CALRT[2:0])  
0
0
0
1
1
1
2
3
4
1
1
1
(default for CTHRM[2:0])  
6.12  
Beta Configuration Register 25h  
Table 6.13 Beta Configuration Register  
ADDR.  
R/W  
REGISTER  
B7  
B6  
B5  
B4  
B3  
B2  
B1  
B0  
DEFAULT  
External  
Diode Beta  
Configuration  
25h  
R/W  
-
-
-
-
ENABLE  
BETA[2:0]  
08h  
This register is used to set the Beta Compensation factor that is used for the external diode channel.  
‘0’ - The Beta Compensation Factor auto-detection circuitry is disabled.  
‘1’ (default) - The Beta Compensation factor auto-detection circuitry is enabled. At the beginning of  
every conversion, the optimal Beta Compensation factor setting will be determined and applied.  
Revision 1.0 (07-11-13)  
34  
SMSC EMC1182  
DATASHEET