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| 型号： | ADT7473ARQZ-REEL |
| 厂商： | ON Semiconductor |
| 文件页数： | 68/73页 |
| 文件大小： | 0K |
| 描述： | IC REMOTE THERMAL CTLR 16QSOP |
| 产品变化通告： | MFG CHG Notification ADI to ON Semi |
| 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： | 16-SSOP（0.154"，3.90mm 宽） |
| 供应商设备封装： | 16-QSOP |
| 包装： | 带卷 (TR) |
| 其它名称： | ADT7473ARQZ-REEL-ND ADT7473ARQZ-REELOSTR |
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ADT7473
Table 82. LOCAL TEMPERATURE OFFSET REGISTER (0X71)
Register Address
<7:0>
R/W (Note 1)
R/W
Description
Allows a twos complement offset value to be automatically added to
or subtracted from the local temperature reading. LSB value = 0.5 ? C.
Power-On Default
0x00
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 83. REMOTE 2 TEMPERATURE OFFSET REGISTER (0X72)
Register Address
<7:0>
R/W (Note 1)
R/W
Description
Allows a twos complement offset value to be automatically added to
or subtracted from the Remote 2 temperature reading. This is to
compensate for any inherent system offsets such as PCB trace
resistance. LSB value = 0.5 ? C.
Power-On Default
0x00
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 84. REGISTER 0X73 ? CONFIGURATION REGISTER 2 (POWER-ON DEFAULT = 0X00)
Bit No.
<0>
<1>
<2>
<3>
<4>
<5>
<6>
Mnemonic
FanPresDT
Fan1Detect
Fan2Detect
Fan3Detect
AVG
ATTN
CONV
R/W (Note 1)
R/W
Read-only
Read-only
Read-only
R/W
R/W
R/W
Description
When FanPresenceDT = 1, the state of Bits <3:1> of Register 0x73 reflects the presence of a
4-wire fan on the appropriate TACH channel.
Fan1 Detect = 1 indicates a 4-wire fan is connected to the PWM1 input.
Fan1 Detect = 1 indicates a 4-wire fan is connected to the PWM2 input.
Fan1 Detect = 1 indicates a 4-wire fan is connected to the PWM3 input.
AVG = 1, averaging on the temperature and voltage measurements is turned off. This allows
measurements on each channel to be made much faster.
ATTN = 1, the ADT7473/ADT7473 ? 1 removes the attenuators from the V CCP input. The
V CCP input can be used for other functions such as connecting up external sensors.
CONV = 1, the ADT7473/ADT7473 ? 1 is put into a single-channel ADC conversion mode. In
this mode, the ADT7473/ADT7473 ? 1 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
001
010
011
100
101
110
111
Reserved
V CCP
V CC (3.3 V)
Reserved
Reserved
Remote 1 Temperature
Local Temperature
Remote 2 Temperature
<7>
Shutdown
R/W
SHDN = 1, ADT7473/ADT7473 ? 1 goes into shutdown mode. All PWM outputs assert low or
high, depending on the state of the INV bit, to switch off all fans.
1. This register becomes read-only when the Configuration Register 1Lock bit is set to 1. Any further attempts to write to this register have no
effect.
Table 85. REGISTER 0X74 ? INTERRUPT MASK REGISTER 1 (POWER-ON DEFAULT = 0X00)
Bit No.
<1>
<2>
<4>
<5>
<6>
<7>
Mnemonic
V CCP
V CC
R1T
LT
R2T
OOL
R/W
R/W
R/W
R/W
R/W
R/W
R/W
Description
V CCP = 1, masks SMBALERT for out-of-limit conditions on the V CCP channel.
V CC = 1, masks SMBALERT for out-of-limit conditions on the V CC channel.
R1T = 1, masks SMBALERT for out-of-limit conditions on the Remote 1 temperature channel.
LT = 1, masks SMBALERT for out-of-limit conditions on the local temperature channel.
R2T = 1, masks SMBALERT for out-of-limit conditions on the Remote 2 temperature channel.
OOL = 0, then 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 are still asserted.
OOL = 1, then 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 are not asserted.
http://onsemi.com
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| ADT7473ARQZ-REEL7 | 功能描述:IC REMOTE THERMAL CTRLR 16QSOP 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 |
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| ADT7473EBZEVB | 功能描述:EVALUATION BOARD ADT7473 制造商:on semiconductor 系列:* 零件状态:在售 标准包装:1 |
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| ADT7475 | 制造商:ONSEMI 制造商全称:ON Semiconductor 功能描述:dBCOOL Remote Thermal Monitor and Fan Controller |
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