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参数资料
| 型号： | EMC2103-1-KP-TR |
| 厂商： | STANDARD MICROSYSTEMS CORP |
| 元件分类： | 模拟信号调理 |
| 中文描述： | SPECIALTY ANALOG CIRCUIT, QCC12 |
| 封装： | 4 X 4 MM, ROHS COMPLIANT, QFN-12 |
| 文件页数： | 65/89页 |
| 文件大小： | 1243K |
| 代理商： | EMC2103-1-KP-TR |
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RPM-Based Fan Controller with HW Thermal Shutdown
Datasheet
Revision 0.90 (08-19-08)
68
SMSC EMC2103
DATASHEET
The Look Up Table Registers hold the 40 entries of the Look Up Table that controls the drive of the
PWM. As the temperature channels are updated, the measured value for each channel is compared
against the respective entries in the Look Up Table and the associated drive setting is loaded into an
internal shadow register and stored.
The bit weighting for temperature inputs represents °C and is compared against the measured data.
Note that the LUT entry does not include a sign bit. The Look Up Table does not support negative
temperature values and the MSBit should not be set for a temperature input.
Each temperature channel threshold shares the same hysteresis value. When the measured
temperature for any of the channels meets or exceeds the programmed threshold, the drive setting
associated with that threshold is used. The temperature must drop below the threshold minus the
hysteresis value before the drive setting will be set to the previous value.
If the RPM based Fan Speed Control Algorithm is used, the TACH Target is updated after every
conversion. It is always set to the minimum TACH Target that is stored by the Look Up Table. The
PWM duty cycle is updated based on the RPM based Fan Speed Control Algorithm configuration
settings.
If the RPM based Fan Speed Control Algorithm is not used, then the PWM duty cycle is updated after
every conversion. It is set to the maximum duty cycle that is stored by the Look Up Table.
54h
R/W
LUT Temp 3
Setting 1
X
-
64
32
16
8
4
2
1
7Fh
(127°C)
55h
R/W
LUT Temp 4
Setting 1
X
-
64
32
16
8
4
2
1
7Fh
(127°C)
. . .
74h
R/W
LUT Drive
Setting 8
‘0’
4096
2048
1024
512
256
128
64
32
92h
‘1’
128
64
32
16
8
4
2
1
75h
R/W
LUT Ext
Diode 1
Setting 8
X
-
64
32
16
8
4
2
1
7Fh
(127°C)
76h
R/W
LUT Ext
Diode 2
Setting 8
X
-
64
32
16
8
4
2
1
7Fh
(127°C)
77h
R/W
LUT Temp 3
Setting 8
X
-
64
32
16
8
4
2
1
7Fh
(127°C)
78h
R/W
LUT Temp 4
Setting 8
X
-
64
32
16
8
4
2
1
7Fh
(127°C)
79h
R/W
LUT Temp
Hysteresis
X
-
16
84
21
0Ah
Table 6.50 Look Up Table Registers (continued)
ADDR
R/W
REGISTER
RPM /
PWM
B7
B6
B5
B4B3
B2B1
B0
DEFAULT
相关PDF资料 |
PDF描述 |
|---|---|
| EMC2103-2-AP-TR | |
| EMCL12C2J-35.000MTR | CRYSTAL OSCILLATOR, CLOCK, 35 MHz, LVPECL OUTPUT |
| EMCL12C2J-40.000M | CRYSTAL OSCILLATOR, CLOCK, 40 MHz, LVPECL OUTPUT |
| EMCL12D2H-30.000MTR | CRYSTAL OSCILLATOR, CLOCK, 30 MHz, LVPECL OUTPUT |
| EMCL12D2H-40.000MTR | CRYSTAL OSCILLATOR, CLOCK, 40 MHz, LVPECL OUTPUT |
相关代理商/技术参数 |
参数描述 |
|---|---|
| EMC2103-2 | 制造商:MICROCHIP 制造商全称:Microchip Technology 功能描述:Analog and Interface Product Selector Guide |
| EMC2103-2-AP | 制造商:SMSC 制造商全称:SMSC 功能描述:RPM-Based Fan Controller with HW Thermal Shutdown |
| EMC2103-2-AP-TR | 功能描述:板上安装温度传感器 Closed Loop RPM RPM Fan Ctrl 3Remote RoHS:否 制造商:Omron Electronics 输出类型:Digital 配置: 准确性:+/- 1.5 C, +/- 3 C 温度阈值: 数字输出 - 总线接口:2-Wire, I2C, SMBus 电源电压-最大:5.5 V 电源电压-最小:4.5 V 最大工作温度:+ 50 C 最小工作温度:0 C 关闭: 安装风格: 封装 / 箱体: 设备功能:Temperature and Humidity Sensor |
| EMC2103-3-KP | 制造商:SMSC 制造商全称:SMSC 功能描述:RPM-Based Fan Controller with HW Thermal Shutdown |
| EMC2103-4 | 制造商:MICROCHIP 制造商全称:Microchip Technology 功能描述:Analog and Interface Product Selector Guide |
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