- 您现在的位置：买卖IC网 > PDF目录373995 > ADM1030 (Analog Devices, Inc.) Circular Connector; No. of Contacts:66; Series:LJT06R; Body Material:Aluminum; Connecting Termination:Crimp; Connector Shell Size:19; Circular Contact Gender:Socket; Circular Shell Style:Straight Plug; Insert Arrangement:19-35 PDF资料下载
参数资料
| 型号： | ADM1030 |
| 厂商： | Analog Devices, Inc. |
| 元件分类： | 圆形连接器 |
| 英文描述： | Circular Connector; No. of Contacts:66; Series:LJT06R; Body Material:Aluminum; Connecting Termination:Crimp; Connector Shell Size:19; Circular Contact Gender:Socket; Circular Shell Style:Straight Plug; Insert Arrangement:19-35 |
| 中文描述： | 智能温度监视器和PWM风扇控制器 |
| 文件页数： | 14/28页 |
| 文件大小： | 278K |
| 代理商： | ADM1030 |
第1页第2页第3页第4页第5页第6页第7页第8页第9页第10页第11页第12页第13页当前第14页第15页第16页第17页第18页第19页第20页第21页第22页第23页第24页第25页第26页第27页第28页
REV. 0
ADM1030
–14–
It should be noted however, that changing the minimum PWM
duty cycle affects the control loop behavior.
Slope 1 of Figure 10 shows T
MIN
set to 0
°
C and the T
RANGE
chosen is 40
°
C. In this case, the fan’s PWM duty cycle will vary
over the range 33% to 100%. The fan will run full-speed at
40
°
C. If the minimum PWM duty cycle at which the fan runs at
T
MIN
is changed, its effect can be seen on Slopes 2 and 3. Take
Case 2, where the minimum PWM duty cycle is reprogrammed
from 33% (default) to 53%.
TEMPERATURE
–
C
100
93
87
80
73
66
60
47
40
33
T
MIN
16
28
40
60
0
P
–
53
T
RANGE
0C
Figure 10. Effect of Changing Minimum Duty Cycle on
Control Loop with Fixed T
MIN
and T
RANGE
Values
The fan will actually reach full-speed at a much lower tempera-
ture, 28
°
C. Case 3 shows that when the minimum PWM duty
cycle was increased to 73%, the temperature at which the fan
ran full-speed was 16
°
C. So the effect of increasing the mini-
mum PWM duty cycle, with a fixed T
MIN
and fixed T
RANGE
, is
that the fan will actually reach full-speed (T
MAX
) at a lower
temperature than T
MIN
+ T
RANGE
. How can T
MAX
be calculated
In Automatic Fan Speed Control Mode, the register that
holds the minimum PWM duty cycle at T
MIN
, is the Fan Speed
Config Register (Register 0x22). Table VII shows the relation-
ship between the decimal values written to the Fan Speed Config
Register and PWM duty cycle obtained.
Table VII. Programming PWM Duty Cycle
Decimal Value
PWM Duty Cycle
00
01
02
03
04
05
06
07
08
09
10 (0x0A)
11 (0x0B)
12 (0x0C)
13 (0x0D)
14 (0x0E)
15 (0x0F)
0%
7%
14%
20%
27%
33% (Default)
40%
47%
53%
60%
67%
73%
80%
87%
93%
100%
The temperature at which the fan will run full-speed (100%
duty cycle) is given by:
T
MAX
=
T
MIN
+ ((
Max DC
–
Min DC
)
×
T
RANGE
/10)
where,
T
MAX
= Temperature at which fan runs full-speed.
T
MIN
= Temperature at which fan will turn on.
Max DC
= Maximum Duty Cycle (100%) = 15 decimal.
Min DC
= Duty Cycle at T
MIN
, programmed into Fan Speed
Config Register (default = 33% = 5 decimal).
T
RANGE
= PWM Duty Cycle versus Temperature Slope.
Example 1
T
MIN
= 0
°
C, T
RANGE
= 40
°
C
Min DC = 53% = 8 decimal (Table VII)
Calculate T
MAX
.
T
MAX
= T
MIN
+ ((Max DC – Min DC)
×
T
RANGE
/10)
T
MAX
= 0 + ((100% DC – 53% DC)
×
40/10)
T
MAX
= 0 + ((15 – 8)
×
4) = 28
T
MAX
=
28 C
(As seen on Slope 2 of Figure 10)
Example 2
T
MIN
= 0
°
C, T
RANGE
= 40
°
C
Min DC
= 73% = 11 Decimal (Table VII)
Calculate T
MAX
.
T
MAX
= T
MIN
+ ((Max DC – Min DC)
×
T
RANGE
/10)
T
MAX
= 0 + ((100% DC – 73% DC)
×
40/10)
T
MAX
= 0 + ((15 – 11)
×
4) = 16
T
MAX
=
16 C
(As seen on Slope 3 of Figure 10)
Example 3
T
MIN
= 0
°
C, T
RANGE
= 40
°
C
Min DC
= 33% = 5 Decimal (Table VII)
Calculate T
MAX
.
T
MAX
= T
MIN
+ ((Max DC – Min DC)
×
T
RANGE
/10)
T
MAX
= 0 + ((100% DC – 33% DC)
×
40/10)
T
MAX
= 0 + ((15 – 5)
×
4) = 40
T
MAX
=
40 C
(As seen on Slope 1 of Figure 10)
In this case, since the Minimum Duty Cycle is the default 33%,
the equation for T
MAX
reduces to:
T
MAX
= T
MIN
+ ((Max DC – Min DC)
×
T
RANGE
/10)
T
MAX
= T
MIN
+ ((15 – 5)
×
T
RANGE
/10)
T
MAX
= T
MIN
+ (10
×
T
RANGE
/10)
T
MAX
=
T
MIN
+ T
RANGE
相关PDF资料 |
PDF描述 |
|---|---|
| ADM1033 | Thermal Monitor and Fan Speed (RPM) Controller |
| ADM1033ARQ | Thermal Monitor and Fan Speed (RPM) Controller |
| ADM1033ARQ-REEL | Thermal Monitor and Fan Speed (RPM) Controller |
| ADM1033ARQ-REEL7 | Thermal Monitor and Fan Speed (RPM) Controller |
| ADM1033ARQZ | Thermal Monitor and Fan Speed (RPM) Controller |
相关代理商/技术参数 |
参数描述 |
|---|---|
| ADM1030ARQ | 功能描述:IC SNSR TEMP/FAN PWM CTRL 16QSOP RoHS:否 类别:集成电路 (IC) >> PMIC - 热管理 系列:- 标准包装:1 系列:- 功能:温度监控系统（传感器） 传感器类型:内部和外部 感应温度:-40°C ~ 125°C，外部传感器 精确度:±2.5°C 本地（最大值），±5°C 远程（最大值） 拓扑:ADC，比较器，寄存器库 输出类型:2 线 SMBus? 输出警报:无 输出风扇:无 电源电压:2.7 V ~ 5.5 V 工作温度:-40°C ~ 125°C 安装类型:表面贴装 封装/外壳:SOT-23-8 供应商设备封装:SOT-23-8 包装:Digi-Reel® 其它名称:296-22675-6 |
| ADM1030ARQ-REEL | 功能描述:IC SNSR TEMP/FAN PWM CTRL 16QSOP RoHS:否 类别:集成电路 (IC) >> PMIC - 热管理 系列:- 标准包装:1 系列:- 功能:温度监控系统（传感器） 传感器类型:内部和外部 感应温度:-40°C ~ 125°C，外部传感器 精确度:±2.5°C 本地（最大值），±5°C 远程（最大值） 拓扑:ADC，比较器，寄存器库 输出类型:2 线 SMBus? 输出警报:无 输出风扇:无 电源电压:2.7 V ~ 5.5 V 工作温度:-40°C ~ 125°C 安装类型:表面贴装 封装/外壳:SOT-23-8 供应商设备封装:SOT-23-8 包装:Digi-Reel® 其它名称:296-22675-6 |
| ADM1030ARQ-REEL7 | 功能描述:IC SNSR TEMP/FAN PWM CTRL 16QSOP RoHS:否 类别:集成电路 (IC) >> PMIC - 热管理 系列:- 标准包装:1 系列:- 功能:温度监控系统（传感器） 传感器类型:内部和外部 感应温度:-40°C ~ 125°C，外部传感器 精确度:±2.5°C 本地（最大值），±5°C 远程（最大值） 拓扑:ADC，比较器，寄存器库 输出类型:2 线 SMBus? 输出警报:无 输出风扇:无 电源电压:2.7 V ~ 5.5 V 工作温度:-40°C ~ 125°C 安装类型:表面贴装 封装/外壳:SOT-23-8 供应商设备封装:SOT-23-8 包装:Digi-Reel® 其它名称:296-22675-6 |
| ADM1030ARQZ | 功能描述:马达/运动/点火控制器和驱动器 TDM & PWM FAN CNTRLRS IC RoHS:否 制造商:STMicroelectronics 产品:Stepper Motor Controllers / Drivers 类型:2 Phase Stepper Motor Driver 工作电源电压:8 V to 45 V 电源电流:0.5 mA 工作温度:- 25 C to + 125 C 安装风格:SMD/SMT 封装 / 箱体:HTSSOP-28 封装:Tube |
| ADM1030ARQZ-REEL | 功能描述:板上安装温度传感器 TDM PWM FAN CTRLRS IC 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 |
发布紧急采购，3分钟左右您将得到回复。