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參數資料
| 型號： | EMC2103-2-AP-TR |
| 廠商： | STANDARD MICROSYSTEMS CORP |
| 元件分類： | 模擬信號調理 |
| 中文描述： | SPECIALTY ANALOG CIRCUIT, QCC16 |
| 封裝： | 4 X 4 MM, ROHS COMPLIANT, QFN-16 |
| 文件頁數： | 22/89頁 |
| 文件大?。?/td> | 1243K |
| 代理商： | EMC2103-2-AP-TR |
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RPM-Based Fan Controller with HW Thermal Shutdown
Datasheet
SMSC EMC2103
29
Revision 0.90 (08-19-08)
DATASHEET
5.4.1
Programming the Look Up Table
When the Look Up Table is used, it must be loaded and configured correctly based on the system
requirements. The following steps outline the procedure.
1. Determine whether the Look Up Table will drive a PWM duty cycle or a tachometer target value
and set the RPM / PWM bit in the Fan LUT Configuration Register (see Section 6.32).
2. Determine which measurement channels (up to four) are to be used with the Look Up Table and
set the TEMP3_CFG and TEMP4_CFG bits accordingly in the Fan LUT Configuration Register.
3. For each step to be used in the LUT, set the Fan Setting (either PWM or TACH Target as set by
the RPM / PWM bit). If a setting is not used, then set it to FFh (if a PWM) or 00h (if a TACH Target).
Load the lowest settings first in ascending order (i.e. Fan Setting 1 is the lowest setting greater
than “off”. Fan Setting 2 is the next highest setting, etc.). See Section 6.33.
4. For each step to be used in the LUT, set each of the measurement channel thresholds. These
values must be set in the same data format that the data is presented. If DTS is to be used, then
the format should be in temperature with a maximum threshold of 100°C (64h). If a measurement
channel is not used, then set the threshold at FFh.
5. Update the threshold hysteresis to be smaller than the smallest table step.
6. Configure the RPM based Fan Speed Control Algorithm if it is to be used. See Section 5.5.1 for
more details.
Figure 5.3 Fan Control Look-Up Table Example
Time
Fan
Setting
Temp
S2
S3
S4
T4
T5
T6
Averaged
Temperature
T4 - Hyst
T5 - Hyst
T6 - Hyst
S1
T3
T3 - Hyst
T2
T2 - Hyst
S6
T1
S5
Measurement taken
Fan
Setting
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相關代理商/技術參數 |
參數描述 |
|---|---|
| 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 |
| EMC2103-4 | 制造商:MICROCHIP 制造商全稱:Microchip Technology 功能描述:Analog and Interface Product Selector Guide |
| EMC2103-4-AP | 制造商:SMSC 制造商全稱:SMSC 功能描述:RPM-Based Fan Controller with HW Thermal Shutdown |
| 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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