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參數(shù)資料
| 型號： | ADM1024 |
| 廠商： | Analog Devices, Inc. |
| 英文描述： | System Hardware Monitor with Remote Diode Thermal Sensing |
| 中文描述： | 系統(tǒng)硬件監(jiān)控與遠程二極管溫度傳感器 |
| 文件頁數(shù)： | 14/28頁 |
| 文件大?。?/td> | 285K |
| 代理商： | ADM1024 |
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ADM1024
–14–
REV. 0
AOUT
12V
Q1
2N2219A
R1
10k
R2
36k
+
1/4
LM324
Figure 16a. Fan Drive Circuit with Op Amp and Emitter—
Follower
AOUT
12V
Q1
BD136
2SA968
R1
10k
R2
39k
+
1/4
LM324
R4
1k
R3
1k
Figure 16b. Fan Drive Circuit with Op Amp and PNP Transistor
AOUT
12V
Q1
IRF9620
R1
10k
R2
39k
+
1/4
LM324
R3
100k
Figure 16c. Fan Driver Circuit with Op Amp and P-Channel
MOSFET
12V
Q3
IRF9620
R2
100k
R3
3.9k
R4
1k
R1
100k
AOUT
Q1/Q2
MBT3904
DUAL
Figure 16d. Discrete Fan Drive Circuit with P-Channel
MOSFET, Single Supply
12V
Q3
IRF9620
R2
100k
R3
39k
R4
10k
AOUT
Q1/Q2
MBT3904
DUAL
R1
4.7k
–
12V
Figure 16e. Discrete Fan Drive Circuit with P-Channel
MOSFET, Dual Supply
12V
Q4
BD132
TIP32A
R2
100k
R3
3.9k
R4
1k
R1
100k
AOUT
Q1/Q2
MBT3904
DUAL
R5
100
Q3
BC556
2N3906
Figure 16f. Discrete Fan Drive Circuit with Bipolar Out-
put Dual Supply
Suitable fan drive circuits are given in Figures 16a to 16f. When
using any of these circuits, the following points should be noted:
1. All of these circuits will provide an output range from zero
to almost 12 V, apart from Figure 17a which loses the base-
emitter voltage drop of Q1 due to the emitter-follower
configuration.
2. To amplify the 2.5 V range of the analog output up to 12 V,
the gain of these circuits needs to be around 4.8.
3. Care must be taken when choosing the op amp to ensure
that its input common-mode range and output voltage swing
are suitable.
4. The op amp may be powered from the 12 V rail alone or from
±
12 V. If it is powered from 12 V then the input common-
mode range should include ground to accommodate the
minimum output voltage of the DAC, and the output voltage
should swing below 0.6 V to ensure that the transistor can
be turned fully off.
5. If the op amp is powered from –12 V, precautions such as a
clamp diode to ground may be needed to prevent the base-
emitter junction of the output transistor being reverse-biased
in the unlikely event that the output of the op amp should
swing negative for any reason.
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PDF描述 |
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
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| ADM1024ARU | 功能描述:IC MONITOR SYS TEMP/VOLT 24TSSOP RoHS:否 類別:集成電路 (IC) >> 接口 - 專用 系列:- 標(biāo)準(zhǔn)包裝:3,000 系列:- 應(yīng)用:PDA，便攜式音頻/視頻，智能電話 接口:I²C，2 線串口 電源電壓:1.65 V ~ 3.6 V 封裝/外殼:24-WQFN 裸露焊盤 供應(yīng)商設(shè)備封裝:24-QFN 裸露焊盤（4x4） 包裝:帶卷 (TR) 安裝類型:表面貼裝 產(chǎn)品目錄頁面:1015 (CN2011-ZH PDF) 其它名稱:296-25223-2 |
| ADM1024ARU-REEL | 功能描述:IC MONITOR SYS TEMP/VOLT 24TSSOP RoHS:否 類別:集成電路 (IC) >> 接口 - 專用 系列:- 標(biāo)準(zhǔn)包裝:3,000 系列:- 應(yīng)用:PDA，便攜式音頻/視頻，智能電話 接口:I²C，2 線串口 電源電壓:1.65 V ~ 3.6 V 封裝/外殼:24-WQFN 裸露焊盤 供應(yīng)商設(shè)備封裝:24-QFN 裸露焊盤（4x4） 包裝:帶卷 (TR) 安裝類型:表面貼裝 產(chǎn)品目錄頁面:1015 (CN2011-ZH PDF) 其它名稱:296-25223-2 |
| ADM1024ARUZ | 功能描述:馬達/運動/點火控制器和驅(qū)動器 THERMAL & VOLT MONITOR IC RoHS:否 制造商:STMicroelectronics 產(chǎn)品:Stepper Motor Controllers / Drivers 類型:2 Phase Stepper Motor Driver 工作電源電壓:8 V to 45 V 電源電流:0.5 mA 工作溫度:- 25 C to + 125 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:HTSSOP-28 封裝:Tube |
| ADM1024ARUZ-R7 | 功能描述:板上安裝溫度傳感器 +/-2 C / +/-3 C Digital 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 |
| ADM1024ARUZ-REEL | 功能描述:板上安裝溫度傳感器 THERMAL & VOLT MONITOR IC 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 |
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