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參數(shù)資料
型號(hào): ADT7463ARQ
廠商: ANALOG DEVICES INC
元件分類: 模擬信號(hào)調(diào)理
英文描述: dB COOL Remote Thermal Controller and Voltage Monitor
中文描述: SPECIALTY ANALOG CIRCUIT, PDSO24
封裝: MO-137AE, QSOP-24
文件頁數(shù): 24/53頁
文件大小: 719K
代理商: ADT7463ARQ
REV. 0
–24–
ADT7463
ADT7463
PWM3
2.2k
1k
3.3V
Q1
MMBT3904
3.3V
10
TACH3
Q2
MMBT2222
10
TACH4
12V
Q3
MMBT2222
1
Figure 30. Interfacing Two Fans in Parallel to the PWM3 Output Using Low Cost NPN Transistors
ADT7463
TACH4
10k
TYPICAL
3.3V
TACH
TACH3
10k
TYPICAL
3.3V
PWM3
10k
TYPICAL
3.3V
+V
Q1
NDT3055L
5V OR
12V FAN
TACH
5V OR 12V
FAN
+V
1N4148
Figure 31. Interfacing Two Fans in Parallel to the PWM3 Output Using a Single N-Channel MOSFET
Driving Two Fans from PWM3
Note that the ADT7463 has four TACH inputs available for fan
speed measurement, but only three PWM drive outputs. If a
fourth fan is being used in the system, it should be driven from
the PWM3 output in parallel with the third fan. Figure 30 shows
how to drive two fans in parallel using low cost NPN transistors.
Figure 31 is the equivalent circuit using the NDT3055L
MOSFET. Note that since the MOSFET can handle up to
3.5 A, it is simply a matter of connecting another fan directly in
parallel with the first.
Care should be taken in designing drive circuits with transistors
and FETs to ensure that the PWM Pins are not required to
source current, and that they sink less than the 8 mA maximum
current specified on the data sheet.
Driving up to Three Fans From PWM2
TACH measurements for fans are synchronized to particular
PWM channels, e.g., TACH1 is synchronized to PWM1.
TACH3 and TACH4 are both synchronized to PWM3 so
PWM3, can drive 2 fans. Alternatively, PWM2 can be pro-
grammed to synchronize TACH2, TACH3, and TACH4 to the
PWM2 output. This allows PWM2 to drive two or three fans.
In this case, the drive circuitry looks the same as shown in
Figures 30 and 31. The SYNC bit in Register 0x62 enables this
function.
<4> (SYNC) ENHANCE ACOUSTICS REG 1 (0x62)
SYNC = 1 Synchronizes TACH2, TACH3, and TACH4 to
PWM2.
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ADT7463ARQ-REEL 功能描述:IC SENSOR TEMP FAN-CTRL 24QSOP RoHS:否 類別:集成電路 (IC) >> PMIC - 熱管理 系列:dBCool® 標(biāo)準(zhǔn)包裝:1 系列:- 功能:溫度監(jiān)控系統(tǒng)(傳感器) 傳感器類型:內(nèi)部和外部 感應(yīng)溫度:-40°C ~ 125°C,外部傳感器 精確度:±2.5°C 本地(最大值),±5°C 遠(yuǎn)程(最大值) 拓?fù)?ADC,比較器,寄存器庫 輸出類型:2 線 SMBus? 輸出警報(bào):無 輸出風(fēng)扇:無 電源電壓:2.7 V ~ 5.5 V 工作溫度:-40°C ~ 125°C 安裝類型:表面貼裝 封裝/外殼:SOT-23-8 供應(yīng)商設(shè)備封裝:SOT-23-8 包裝:Digi-Reel® 其它名稱:296-22675-6
ADT7463ARQ-REEL7 功能描述:IC SENSOR TEMP FAN-CTRL 24QSOP RoHS:否 類別:集成電路 (IC) >> PMIC - 熱管理 系列:dBCool® 標(biāo)準(zhǔn)包裝:1 系列:- 功能:溫度監(jiān)控系統(tǒng)(傳感器) 傳感器類型:內(nèi)部和外部 感應(yīng)溫度:-40°C ~ 125°C,外部傳感器 精確度:±2.5°C 本地(最大值),±5°C 遠(yuǎn)程(最大值) 拓?fù)?ADC,比較器,寄存器庫 輸出類型:2 線 SMBus? 輸出警報(bào):無 輸出風(fēng)扇:無 電源電壓:2.7 V ~ 5.5 V 工作溫度:-40°C ~ 125°C 安裝類型:表面貼裝 封裝/外殼:SOT-23-8 供應(yīng)商設(shè)備封裝:SOT-23-8 包裝:Digi-Reel® 其它名稱:296-22675-6
ADT7463ARQZ 功能描述:馬達(dá)/運(yùn)動(dòng)/點(diǎn)火控制器和驅(qū)動(dòng)器 SYS MGMT CNTRLR 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
ADT7463ARQZ-R7 功能描述:板上安裝溫度傳感器 SYS MGMT CNTRLR 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
ADT7463ARQZ-REEL 功能描述:板上安裝溫度傳感器 SYS MGMT CNTRLR 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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