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参数资料
| 型号： | ADT7470ARQZ |
| 厂商： | ANALOG DEVICES INC |
| 元件分类： | 温度/湿度传感器 |
| 英文描述： | DIGITAL TEMP SENSOR-SERIAL, 7BIT(s), RECTANGULAR, SURFACE MOUNT |
| 封装： | ROHS COMPLIANT, MO-137AB, QSOP-16 |
| 文件页数： | 37/40页 |
| 文件大小： | 962K |
| 代理商： | ADT7470ARQZ |
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ADT7470
Rev. C | Page 6 of
40
PIN CONFIGURATION AND FUNCTION DESCRIPTIONS
04684-0-003
1
2
3
4
5
6
7
8
16
15
14
13
12
11
10
9
GND
VCC
TACH3
TACH2
TACH1
PWM2
SCL
PWM1
SMBALERT
FULL_SPEED/TMP_START
PWM4
PWM3
TACH4
ADDR
TMP_IN
SDA
ADT7470
TOP VIEW
(Not to Scale)
Figure 3. Pin Configuration
Table 4. Pin Function Descriptions
Pin No.
Mnemonic
Description
1
SCL
Digital Input (Open Drain). SMBus serial clock input. Requires SMBus pull-up, typically 2k2Ω.
2
GND
Ground Pin.
3
VCC
Power Supply Pin.
4
TACH3
Digital Input (Open Drain). Fan tachometer input to measure the speed of Fan 3.
5
PWM2
Digital I/O (Open Drain). Requires 10 kΩ typical pull-up. Pulse-width modulated output to control
the speed of Fan 2. Can be configured as GPIO by setting Bit 0x7F[2] = 1.
6
TACH1
Digital Input (Open Drain). Fan tachometer input to measure the speed of Fan 1.
7
TACH2
Digital Input (Open Drain). Fan tachometer input to measure the speed of Fan 2.
8
PWM3
Digital I/O (Open Drain). Pulse-width modulated output to control the speed of Fan 3.
Requires 10 kΩ typical pull-up. Can be configured as GPIO by setting Bit 0x7F[1] = 1.
9
TACH4
Digital Input (Open Drain). Fan tachometer input to measure the speed of Fan 4.
10
PWM4
Digital I/O (Open Drain). Pulse-width modulated output to control the speed of Fan 4.
Requires 10 kΩ typical pull-up. Can be configured as GPIO by setting Bit 0x7F[0] = 1.
11
ADDR
Three-state Input. Used to set the SMBus device address.
12
TMP_IN
Digital Input (Open Drain). PWM input to PWM processing engine that interprets daisy-chained output
from multiple TMP05 temperature sensors. Readings from individual TMP05 temperature sensors are
available by reading the temperature reading registers over the SMBus.
13
FULL_SPEED
Digital Input Active Low (Open Drain). This input blasts the fans to maximum speed when the pin is pulled low
externally. Do not leave pin 13 open when not I use, tie to VCC.
13
TMP_START
Digital Output (Open Drain). This pin can be used as an output to start daisy-chained temperature
measurements from TMP05 or TMP06 temperature sensors. Requires 10 kΩ typical pull-up.
14
SMBALERT
Digital Output Active Low (Open Drain). This pin can be reconfigured as an SMBALERT interrupt output
to signal out-of-limit conditions such as fan failures.
15
PWM1
Digital I/O (Open Drain). Pulse-width modulated output to control the speed of Fan 1.
Requires 10 kΩ typical pull-up. Can be configured as GPIO by setting Bit 0x7F[3] = 1.
16
SDA
Digital I/O (Open Drain). SMBus bidirectional serial data. Requires SMBus pull-up, typically 2k2Ω.
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相关代理商/技术参数 |
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| ADT7470ARQZ-REEL | 功能描述:IC SENSOR TEMP FAN CTRLR 16QSOP RoHS:是 类别:集成电路 (IC) >> PMIC - 热管理 系列:- 标准包装:2,500 系列:SilentSense™ 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:-55°C ~ 125°C，外部传感器 精确度:±2°C 本地（最大），±3°C 远程（最大） 拓扑:ADC（三角积分型），比较器，寄存器库 输出类型:I²C?/SMBus? 输出警报:是 输出风扇:是 电源电压:2.7 V ~ 5.5 V 工作温度:-55°C ~ 125°C 安装类型:表面贴装 封装/外壳:8-TSSOP，8-MSOP（0.118"，3.00mm 宽） 供应商设备封装:8-MSOP 包装:带卷 (TR) 其它名称:MIC284-2BMMTRMIC284-2BMMTR-ND |
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| ADT7473_11 | 制造商:ONSEMI 制造商全称:ON Semiconductor 功能描述:dbCOOL Remote Thermal Monitor and Fan Control |
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