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| 型号： | ADT7476AARQZ-R |
| 厂商： | ON Semiconductor |
| 文件页数： | 60/66页 |
| 文件大小： | 945K |
| 描述： | IC REMOTE THERMAL CTLR 24QSOP |
| 产品变化通告： | MFG CHG Notification ADI to ON Semi QSOP 24ld Pkg (MSL) Change 17/Jun/2010 |
| 标准包装： | 2,500 |
| 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： | 带卷 (TR) |
| 其它名称： | ADT7476AARQZ-R-ND ADT7476AARQZ-ROSTR |
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ADT7476A
http://onsemi.com
60
Table 77. REGISTER 0x73 CONFIGURATION REGISTER 2 (POWER-ON DEFAULT = 0x00) (Note 1)
Bit No.
Mnemonic
R/W
Description
0
FanPresDT
R/W
When FanPresenceDT = 1, the state of Bits [3:1] of 0x73 reflects the presence of a 4-wire fan
on the appropriate TACH channel.
1
Fan1Detect
Read-only
Fan1Detect = 1 indicates that a 4-wire fan is connected to the TACH1 input.
2
Fan2Detect
Read-only
Fan2Detect = 1 indicates that a 4-wire fan is connected to the TACH2 input.
3
Fan3Detect
Read-only
Fan3Detect = 1 indicates that a 4-wire fan is connected to the TACH3 input.
4
AVG
R/W
AVG = 1 indicates that averaging on the temperature and voltage measurements is turned
off. This allows measurements on each channel to be made much faster (x16).
5
ATTN
R/W
ATTN = 1 indicates that the ADT7476A removes the attenuators from the +2.5 V
IN
, V
CCP
,
+5.0 V
IN
, and +12 V
IN
inputs. These inputs can be used for other functions such as
connecting up external sensors. It is also possible to remove attenuators from individual
channels using Bits [7:4] of Configuration Register 4 (0x7D).
6
CONV
R/W
CONV = 1 indicates that the ADT7476A is put into a single-channel ADC conversion mode.
In this mode, the ADT7476A can be made to read continuously from one input only, for
example, Remote 1 temperature. The appropriate ADC channel is selected by writing to
Bits [7:5] of TACH1 minimum high byte register (0x55).
Bits [7:5], Register 0x55
000
2.5 V
001
V
CCP
010
V
CC
(3.3 V)
011
5.0 V
100
12 V
101
Remote 1 Temperature
110
Local Temperature
111
Remote 2 Temperature
7
Res
This bit is reserved and should not be changed.
1. This register becomes read-only when the Configuration Register 1 lock bit is set to 1. Any further attempts to write to this register have no effect.
Table 78. REGISTER 0x74 INTERRUPT MASK REGISTER 1 (POWER-ON DEFAULT [7:0] = 0x00)
Bit No.
Mnemonic
R/W
Description
[0]
2.5 V/
THERM
R/W
2.5 V/THERM
= 1 masks SMBALERT
for out-of-limit conditions on the 2.5 V/THERM
timer
channel.
[1]
V
CCP
R/W
V
CCP
= 1 masks SMBALERT
for out-of-limit conditions on the V
CCP
channel.
[2]
V
CC
R/W
V
CC
= 1 masks SMBALERT
for out-of-limit conditions on the V
CC
channel.
[3]
5.0 V
R/W
5.0 V = 1 masks SMBALERT
for out-of-limit conditions on the 5.0 V channel.
[4]
R1T
R/W
R1T = 1 masks SMBALERT
for out-of-limit conditions on the Remote 1 temperature channel.
[5]
LT
R/W
LT = 1 masks SMBALERT
for out-of-limit conditions on the local temperature channel.
[6]
R2T
R/W
R2T = 1 masks SMBALERT
for out-of-limit conditions on the Remote 2 temperature channel.
[7]
OOL
R/W
OOL = 0 when one or more alerts are generated in Interrupt Status Register 2, assuming all
the mask bits in the Interrupt Mask Register 2 (0x75) = 1, SMBALERT
is still asserted.
OOL = 1 when one or more alerts are generated in Interrupt Status Register 2, assuming all
the mask bits in the Interrupt Mask Register 2 (0x75) = 1, SMBALERT
is not asserted.
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| 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 |
| ADT7476ARQH-REEL | 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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