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參數(shù)資料
| 型號(hào)： | ADT7466ARQZ-REEL |
| 廠商： | ANALOG DEVICES INC |
| 元件分類： | 模擬信號(hào)調(diào)理 |
| 英文描述： | dBCool Remote Thermal Controller and Voltage Monitor |
| 中文描述： | SPECIALTY ANALOG CIRCUIT, PDSO16 |
| 封裝： | LEAD FREE, MO-137AB, QSOP-16 |
| 文件頁數(shù)： | 36/48頁 |
| 文件大小： | 1269K |
| 代理商： | ADT7466ARQZ-REEL |
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ADT7466
Configuration 3
This register becomes read only when the Configuration Register 1 lock bit is set to 1. Additional attempts to write to this register have no
effect. Bits 4:5 are not locked.
Table 33. Register 0x02—Configuration Register 3 (Power-On Default = 0xC0)
Bit No.
Name
Read/Write
Description
1:0
P7CONFIG
Read/Write
These bits configure Pin 7 as either FAN1_ON output, THERM output or PROCHOT input.
00 = FAN1_ON output
01 = THERM output
1X = PROCHOT input
2
BOOST
Read/Write
When BOOST is set to 1, assertion of PROCHOT causes all fans to run at 100% duty cycle for fail
safe cooling.
3
FAST
Read/Write
Setting this bit to 1 enables fast tach measurements on all channels. This increases the tach
measurement rate from once a second, to one every 250 ms (4×).
4
DC1
Read/Write
Setting this bit to 1 enables tach measurements to be continuously made on TACH1. Not
lockable.
5
DC2
Read/Write
Setting this bit to 2 enables tach measurements to be continuously made on TACH2. Not
lockable.
6
THER2
Read/Write
Setting this bit to 1 configures AIN1 as a thermistor input.
Setting this bit to 0 configures for analog input.
7
THER1
Read/Write
Setting this bit to 1 configures AIN2 as a thermistor input.
Setting this bit to 0 configures for analog input.
Configuration Register 4
Table 34. Register 0x03—Configuration Register 4 (Power-On Default = 0x00)
Bit No.
Name
R/W
Description
2:0
CH2:0
Read/Write
These bits select the input channel when SNGL bit is set.
011 = Remote 1 temperature
100 = Local temperature
101 = Remote 2 temperature
3
SNGL
Read/Write
Setting this bit selects single channel measurement.
4
MIN1
Read/Write
When this bit is set, Fan 1 never goes below minimum speed setting.
5
MIN2
Read/Write
When this bit is set, Fan 2 never goes below minimum speed setting.
6
Unused
Read only
Unused. Write ignored. Reads back 0.
7
Unused
Read only
Unused. Write ignored. Reads back 0.
AFC1 Configuration
If more than one of Bits 0:3 are set, the fan speed is controlled by whichever temperature channel demands the highest fan speed.
Table 35. Register 0x05—AFC Configuration Register 1 (Power-On Default = 0x0C)
Bit No.
Name
Read/Write
Description
0
TH1/REM2
Read/Write
When this bit is set, Fan 1 speed is controlled by TH1 if Pin 11 is configured for thermistor, or by
Thermal Diode 2 if Pin 11 is configured for thermal diode.
1
TH2
Read/Write
When this bit is set, Fan 1 speed is controlled by TH2 if Pin 12 is configured for thermistor.
2
REM1
Read/Write
When this bit is set, Fan 1 speed is controlled by Remote Temperature Input 1.
3
LOC
Read/Write
When this bit is set, Fan 1 speed is controlled by local temperature input.
4
MAN
Read/Write
When this bit is set, Fan 1 speed is under user control by writing directly to the DRIVE1 register. This
overrides all lower bit settings
5
MIN
Read/Write
When this bit is set, Fan 1 runs at minimum speed. This overrides all lower bit settings.
6
STRT
Read/Write
When this bit is set, Fan 1 runs at start-up speed. This overrides all lower bit settings.
7
MAX
Read/Write
When this bit is set, Fan 1 runs at maximum speed. This overrides all lower bit settings.
Rev. 0 | Page 36 of 48
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