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| 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)： | 79/89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
Revision 0.90 (08-19-08)
80
SMSC EMC2103
DATASHEET
Appendix A Look Up Table Operation
The EMC2103 uses a look-up table to apply a user-programmable fan control profile based on
measured temperature to the fan driver. In this look-up table, each temperature channel is allowed to
control the fan drive output independently (or jointly) by programming up to eight pairs of temperature
and drive setting entries.
The user programs the look-up table based on the desired operation. If the RPM based Fan Speed
Control Algorithm is to be used (see Section 5.5), then the user must program an RPM target for each
temperature setting of interest. Alternately, if the RPM based Fan Speed Control Algorithm is not to be
used, then the user must program a drive setting for each temperature setting of interest.
If the measured temperature on the External Diode channel meets or exceeds any of the temperature
thresholds for any of the channels, the fan output will be automatically set to the desired setting
corresponding to the exceeded temperature. In cases where multiple temperature channel thresholds
are exceeded, the highest fan drive setting will take precedence.
When the measured temperature drops to a point below a lower threshold minus the hysteresis value,
the fan output will be set to the corresponding lower set point.
The following sections show examples of how the Look Up Table is used and configured. Each Look
Up Table Example uses the Fan 1 Look Up Table Registers configured as shown in Table A.1.
A.1
Example #1
This example does not use the RPM based Fan Speed Control Algorithm. Instead, the Look Up Table
is configured to directly set a PWM setting based on the temperature of four of its measured inputs.
The configuration is set as shown in Table A.2.
temperature configurations using the settings in Table A.3 and the final PWM output drive setting that
the Look Up Table will select.
Table A.1 Look Up Table Format
STEP
TEMP 1
TEMP 2
TEMP 3
TEMP 4
LUT DRIVE
1
LUT Temp 1
Setting 1 (52h)
LUT Temp 2
Setting 1 (53h)
LUT Temp 3
Setting 1 (54h)
LUT Temp 4
Setting 1 (55h)
LUT Drive
Setting 1 (51h)
2
LUT Temp 1
Setting 2 (57h)
LUT Temp 2
Setting 2 (58h)
LUT Temp 3
Setting 2 (59h)
LUT Temp 4
Setting 2 (5Ah)
LUT Drive
Setting 2 (56h)
3
LUT Temp 1
Setting 3 (5Ch)
LUT Temp 2
Setting 3 (5Dh)
LUT Temp 3
Setting 3 (5Eh)
LUT Temp 4
Setting 3 (5Fh)
LUT Drive
Setting 3 (5Bh)
4
LUT Temp 1
Setting 4 (61h)
LUT Temp 2
Setting 4 (62h)
LUT Temp 3
Setting 4 (63h)
LUT Temp 4
Setting 4 (64h)
LUT Drive
Setting 4 (60h)
5
LUT Temp 1
Setting 5 (66h)
LUT Temp 2
Setting 5 (67h)
LUT Temp 3
Setting 5 (68h)
LUT Temp 4
Setting 5 (69h)
LUT Drive
Setting 5 (65h)
6
LUT Temp 1
Setting 6 (6Bh)
LUT Temp 2
Setting 6 (6Ch)
LUT Temp 3
Setting 6 (6Dh)
LUT Temp 4
Setting 6 (6Eh)
LUT Drive
Setting 6 (6Ah)
7
LUT Temp 1
Setting 7 (70h)
LUT Temp 2
Setting 7 (71h)
LUT Temp 3
Setting 7 (72h)
LUT Temp 4
Setting 7 (73h)
LUT Drive
Setting 7 (6Fh)
8
LUT Temp 1
Setting 8 (75h)
LUT Temp 2
Setting 8 (76h)
LUT Temp 3
Setting 8 (77h)
LUT Temp 4
Setting 8 (78h)
LUT Drive
Setting 8 (74h)
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相關(guān)代理商/技術(shù)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 |
| 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(zhǔn)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(guān)閉: 安裝風(fēng)格: 封裝 / 箱體: 設(shè)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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