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EMC2104-BP-TR 参数 Datasheet PDF下载

EMC2104-BP-TR图片预览
型号: EMC2104-BP-TR
PDF下载: 下载PDF文件 查看货源
内容描述: [Switching Controller]
分类和应用: 风扇控制器
文件页数/大小: 101 页 / 1474 K
品牌: SMSC [ SMSC CORPORATION ]
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Dual RPM-Based PWM Fan Controller with Hardware Thermal Shutdown  
Datasheet  
The Critical / Thermal Shutdown temperature has a separate fault queue that applies to the selected  
hardware shutdown channel (see Section 6.1.1) when compared against the threshold set by the  
TRIP_SET pin.  
APPLICATION NOTE: If the fault queue for any channel is currently active (i.e. an out of limit condition has been  
detected and caused the fault queue to increment) then changing the settings will not take  
effect until the fault queue is zeroed. This occurs by the ALERT# pin asserting or the out of  
limit condition being removed.  
Table 6.14 Fault Queue  
QUEUE[1:0]  
1
0
NUMBER OF CONSECUTIVE OUT OF LIMIT CONDITIONS  
0
0
1
1
0
1
0
1
1 (disabled)  
2
3
4 (default)  
Bit 1 - 0 - CONV[1:0] - determines the conversion rate of the temperature monitoring. This conversion  
rate does not affect the fan driver. The supply current from VDD_3V is nominally dependent upon the  
conversion rate and the average current will increase as the conversion rate increases.  
Table 6.15 Conversion Rate  
TEMPERATURE OVER SAMPLING  
CONV[1:0]  
FROM 11 BITS  
1
0
CONVERSION RATE  
DYN_DIS = ‘0’  
DYN_DIS = ‘1’  
0
0
1
1
0
1
0
1
1 / sec  
2 / sec  
x8  
x4  
x2  
x1  
x1  
x1  
x1  
x1  
4 / sec (default)  
Continuous  
6.11  
Configuration 3 Register  
Table 6.16 Configuration 3 Register  
ADDR  
22h  
R/W  
REGISTER  
B7  
B6  
B5  
B4  
B3  
B2  
B1  
B0  
DEFAULT  
00h  
VIN4_I  
NV  
VIN3  
_EN  
VIN3  
_INV  
VIN2  
_EN  
VIN2  
_INV  
VIN1  
_EN  
VIN1  
_INV  
R/W  
Config 3  
-
The Configuration 3 Register controls the four voltage input channels. This register is software locked.  
Bit 6 - VIN4_INV - Determines whether the VIN4 channel data is inverted.  
„
‘0’ (default) - The VIN4 channel data is not inverted.  
SMSC EMC2104  
Revision 1.74 (05-08-08)  
DATA5S7HEET