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| 型号： | ADT7476AARQZ |
| 厂商： | ON Semiconductor |
| 文件页数： | 5/66页 |
| 文件大小： | 945K |
| 描述： | IC REMOTE THERM CTRLR 5V 24QSOP |
| 产品变化通告： | MFG CHG Notification ADI to ON Semi QSOP 24ld Pkg (MSL) Change 17/Jun/2010 Product Discontinuation 30/Sept/2011 |
| 标准包装： | 56 |
| 系列： | dBCool® |
| 功能： | 风扇控制，温度监控器 |
| 传感器类型： | 内部和外部 |
| 感应温度： | -40°C ~ 125°C |
| 精确度： | ±2.5% |
| 拓扑： | ADC，比较器，风扇速度计数器，多路复用器，寄存器库 |
| 输出类型： | SMBus? |
| 输出警报： | 无 |
| 输出风扇： | 是 |
| 电源电压： | 3 V ~ 3.6 V |
| 工作温度： | -40°C ~ 125°C |
| 安装类型： | 表面贴装 |
| 封装/外壳： | 24-SSOP（0.154"，3.90mm 宽） |
| 供应商设备封装： | 24-QSOP |
| 包装： | 管件 |
| 产品目录页面： | 1118 (CN2011-ZH PDF) |
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ADT7476A
http://onsemi.com
5
Table 4. PIN ASSIGNMENT
Pin No.
Mnemonic
Description
1
SDA
Digital I/O (Open Drain). SMBus bidirectional serial data. Requires SMBus pullup.
2
SCL
Digital Input (Open Drain). SMBus serial clock input. Requires SMBus pullup.
3
GND
Ground Pin.
4
V
CC
Power Supply. Powered by 3.3 V standby, if monitoring in low power states is required. V
CC
is also
monitored through this pin.
5
VID0/
GPIO0
Digital Input. Voltage supply readouts from CPU. This value is read into the VID/GPIO register (0x43).
General-Purpose Open Drain Digital I/O.
6
VID1/
GPIO1
Digital Input. Voltage supply readouts from CPU. This value is read into the VID/GPIO register (0x43).
General-Purpose Open Drain Digital I/O.
7
VID2/
GPIO2
Digital Input. Voltage supply readouts from CPU. This value is read into the VID/GPIO register (0x43).
General-Purpose Open Drain Digital I/O.
8
VID3/
GPIO3
Digital Input. Voltage supply readouts from CPU. This value is read into the VID/GPIO register (0x43).
General-Purpose Open Drain Digital I/O.
9
TACH3
Digital Input (Open Drain). Fan tachometer input to measure speed of Fan 3.
10
PWM2/
SMBALERT
Digital Output (Open Drain). Requires 10 kW typical pullup. Pulse width modulated output to control Fan
2 speed. Can be configured as a high or low frequency drive.
Digital Output (Open Drain). This pin can be reconfigured as an SMBALERT
interrupt output to signal
out-of-limit conditions.
11
TACH1
Digital Input (Open Drain). Fan tachometer input to measure speed of Fan 1.
12
TACH2
Digital Input (Open Drain). Fan tachometer input to measure speed of Fan 2.
13
PWM3
ADDREN
Digital I/O (Open Drain). Pulse width modulated output to control the speed of Fan 3 and Fan 4.
Requires 10 kW typical pullup. Can be configured as a high or low frequency drive.
If pulled low on powerup, the ADT7476A enters address select mode, and the state of Pin 14 (ADDR
SELECT
) determines the ADT7476As slave address.
14
TACH4/
Digital Input (Open Drain). Fan tachometer input to measure speed of Fan 4.
THERM
/
SMBALERT
/
GPIO6/
ADDR SELECT
Alternatively, the pin can be reconfigured as a bidirectional THERM
pin. Times and monitors assertions
on the THERM
input. For example, it can be connected to the PROCHOT
output of Intels Pentium
?/DIV>
4
processor or to the output of a trip point temperature sensor. Can be used as an output to signal
overtemperature conditions.
Digital Output (Open Drain). This pin can be reconfigured as an SMBALERT
interrupt output to signal
out-of-limit conditions.
General-Purpose Open Drain Digital I/O.
If in address select mode, the logic state of this pin defines the SMBus device address.
15
D2
Cathode Connection to Second Thermal Diode.
16
D2+
Anode Connection to Second Thermal Diode.
17
D1
Cathode Connection to First Thermal Diode.
18
D1+
Anode Connection to First Thermal Diode.
19
VID4/
Digital Input. Voltage supply readouts from CPU. This value is read into the VID/GPIO register (0x43).
GPIO4
General-Purpose Open Drain Digital I/O.
20
+5.0 V
IN
Analog Input. Monitors 5.0 V power supply.
21
+12 V
IN
/
VID5
Analog Input. Monitors 12 V power supply.
Digital Input. Voltage supply readouts from CPU. This value is read into the VID/GPIO register (0x43).
22
+2.5 V
IN
/
THERM
Analog Input. Monitors 2.5 V supply, typically a chipset voltage.
Alternatively, this pin can be reconfigured as a bidirectional/omnidirectional THERM
pin. Can be used to
time and monitor assertions on the THERM
input. For example, can be connected to the PROCHOT
output of Intels Pentium
?/DIV>
4 processor or to the output of a trip point temperature sensor. Can be used as
an output to signal overtemperature conditions.
23
V
CCP
Analog Input. Monitors processor core voltage (0 V to 3 V).
24
PWM1/
XTO
Digital Output (Open Drain). Pulse width modulated output to control the speed of Fan 1. Requires 10 kW
typical pullup.
Also functions as the output from the XOR tree in XOR test mode.
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相关代理商/技术参数 |
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|---|---|
| ADT7476AARQZ-R | 功能描述:板上安装温度传感器 MONITORS 5V/4 FANS 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 |
| ADT7476AARQZ-REEL | 功能描述:IC REMOTE THERMAL CTRLR 24-QSOP RoHS:是 类别:集成电路 (IC) >> PMIC - 热管理 系列:dBCool® 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 |
| ADT7476AARQZ-REEL7 | 功能描述:IC REMOTE THERMAL CTRLR 24-QSOP RoHS:是 类别:集成电路 (IC) >> PMIC - 热管理 系列:dBCool® 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 |
| ADT7476AARQZ-RL7 | 功能描述:板上安装温度传感器 MONITORS 5V/4 FANS 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 |
| ADT7476ARQH | 制造商:ONSEMI 制造商全称:ON Semiconductor 功能描述:dBCOOL Remote Thermal Controller and Voltage Monitor |
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