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參數(shù)資料
| 型號： | EMC2103-2-AP-TR |
| 廠商： | STANDARD MICROSYSTEMS CORP |
| 元件分類： | 模擬信號調(diào)理 |
| 中文描述： | SPECIALTY ANALOG CIRCUIT, QCC16 |
| 封裝： | 4 X 4 MM, ROHS COMPLIANT, QFN-16 |
| 文件頁數(shù)： | 44/89頁 |
| 文件大小： | 1243K |
| 代理商： | EMC2103-2-AP-TR |
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RPM-Based Fan Controller with HW Thermal Shutdown
Datasheet
SMSC EMC2103
49
Revision 0.90 (08-19-08)
DATASHEET
Writing to a read only register will have no affect. The data will be ignored.
Bit 4 - AUTOx - Enables the Automatic Beta detection algorithm for the External Diode X channel.
‘0’ - The Automatic Beta detection algorithm is disabled. The BETAx[3:0] bit settings will be used
to control the beta compensation circuitry. This bit is set to ‘0’ automatically if Beta Compensation
is disabled - see Table 5.1.
‘1’ - The Automatic Beta detection algorithm is enabled. The circuitry will automatically detect the
transistor type and beta values and configure the BETAx[3:0] bits for optimal performance.
Bits 2 - 0 - BETAx[2:0] - hold a value that corresponds to a range of betas that the Beta Compensation
circuitry can compensate for. These three bits will always show the current beta setting used by the
circuitry. If the AUTO bit is set (default), then these bits may be overwritten with every temperature
conversion. If the AUTO bit is not set, then the value of these bits is used to drive the beta
compensation circuitry. In this case, these bits should be set with a value corresponding to the lowest
expected value of beta for the PNP transistor being used as a temperature sensing device.
See Table 6.12 for supported beta ranges. A value of 111b indicates that the beta compensation
circuitry is disabled. In this condition, the diode channels will function with default current levels and
will not automatically adjust for beta variation. This mode is used when measuring a discrete 2N3904
transistor or AMD thermal diode.
If the External Diode 3 channel is enabled, it will always use a beta setting of 111b.
These bits will be set to 111b if Beta Compensation is disabled - see Table 5.1
The Beta Configuration Registers are Software Locked.
6.8
REC Configuration Register
Table 6.12 Beta Compensation Look Up Table
BETAX[2:0]
MINIMUM BETA
210
000
< 0.08
001
< 0.111
010
< 0.176
011
< 0.29
100
< 0.48
101
< 0.9
110
< 2.33
1
Disabled
Table 6.13 REC Configuration Register
ADDR
R/W
REGISTER
B7
B6
B5
B4
B3
B2
B1
B0
DEFAULT
17h
R/W -
see
REC
Configuration
-----
REC3
REC2
REC1
0000_01XXb
see
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相關代理商/技術參數(shù) |
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| EMC2103-3-KP | 制造商:SMSC 制造商全稱:SMSC 功能描述:RPM-Based Fan Controller with HW Thermal Shutdown |
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| EMC2103-4-AP-TR | 功能描述:板上安裝溫度傳感器 RPM-BASED FAN CTRL HW THRML SHUTDWN RoHS:否 制造商:Omron Electronics 輸出類型:Digital 配置: 準確性:+/- 1.5 C, +/- 3 C 溫度閾值: 數(shù)字輸出 - 總線接口:2-Wire, I2C, SMBus 電源電壓-最大:5.5 V 電源電壓-最小:4.5 V 最大工作溫度:+ 50 C 最小工作溫度:0 C 關閉: 安裝風格: 封裝 / 箱體: 設備功能:Temperature and Humidity Sensor |
| EMC2104 | 制造商:SMSC 制造商全稱:SMSC 功能描述:Dual RPM-Based PWM Fan Controller with Hardware Thermal Shutdown |
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