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| 型號： | ADT7473ARQZ-1REEL7 |
| 廠商： | ANALOG DEVICES INC |
| 元件分類： | 溫度/濕度傳感器 |
| 英文描述： | DIGITAL TEMP SENSOR-SERIAL, 8BIT(s), 2.50Cel, RECTANGULAR, SURFACE MOUNT |
| 封裝： | ROHS COMPLIANT, MO-137AB, QSOP-16 |
| 文件頁數(shù)： | 59/72頁 |
| 文件大?。?/td> | 1494K |
| 代理商： | ADT7473ARQZ-1REEL7 |
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ADT7473/ADT7473-1
Rev. C | Page 62 of 72
Table 34. Fan Tachometer Limit Registers1
Register Address
R/W
Description
Power-On Default
0x54
R/W
TACH1 minimum low byte.
0xFF
0x55
R/W
TACH1 minimum high byte/single-channel ADC channel select.
0xFF
0x56
R/W
TACH2 minimum low byte.
0xFF
0x57
R/W
TACH2 minimum high byte.
0xFF
0x58
R/W
TACH3 minimum low byte.
0xFF
0x59
R/W
TACH3 minimum high byte.
0xFF
0x5A
R/W
TACH4 minimum low byte.
0xFF
0x5B
R/W
TACH4 minimum high byte.
0xFF
1 Exceeding any of the TACH limit registers by 1 indicates that the fan is running slowly or has stalled. The appropriate status bit is set in Interrupt Status Register 2 to
indicate the fan failure. Setting the Configuration Register 1 lock bit has no effect on these registers.
Table 35. Register 0x55—TACH1 Minimum High Byte (Power-On Default = 0xFF)
Bit
Name
R/W
Description
[4:0]
Reserved
Read-only
These bits are reserved when Bit 6 of Configuration Register 2 (0x73) is set (single-channel ADC mode).
Otherwise, these bits represent Bits [4:0] of the TACH1 minimum high byte.
[7:5]
SCADC
R/W
When Bit 6 of Configuration Register 2 (0x73) is set (single-channel ADC mode), these bits are used to
select the only channel from which the ADC makes measurements. Otherwise, these bits represent
Bits [7:5] of the TACH1 minimum high byte.
Table 36. PWM Configuration Registers
Register Address
R/W1
Description
Power-On Default
0x5C
R/W
PWM1 configuration.
ADT7473: 0x82
ADT7473-1: 0x62
0x5D
R/W
PWM2 configuration.
ADT7473: 0x82
ADT7473-1: 0x62
0x5E
R/W
PWM3 configuration.
ADT7473: 0x82
ADT7473-1: 0x62
1 These registers become read-only when the Configuration Register 1 lock bit is set. Any further attempts to write to these registers have no effect.
Table 37. Register 0x5C, Register 0x5D, and Register 0x5E—Configuration Registers
(ADT7473 Power-On Default = 0x82, ADT7473-1 Power-On Default = 0x62)
Bit
Name
R/W
Description
[2:0]
SPIN
R/W
These bits control the start-up timeout for PWMx. The PWM output stays high until two valid TACH rising edges
are seen from the fan. If there is not a valid TACH signal during the fan TACH measurement directly after the fan
start-up timeout period, then the TACH measurement reads 0xFFFF and Interrupt Status Register 2 reflects the
fan fault. If the TACH minimum high and low bytes contain 0xFFFF or 0x0000, then the Interrupt Status Register
2 bit is not set, even if the fan has not started.
000 = No start-up timeout.
001 = 100 ms.
010 = 250 ms (default).
011 = 400 ms.
100 = 667 ms.
101 = 1 sec.
110 = 2 sec.
111 = 4 sec.
[3]
SLOW
R/W
SLOW = 1 makes the ramp rates for acoustic enhancement four times longer.
[4]
INV
R/W
This bit inverts the PWM output. The default is 0, which corresponds to a logic high output for 100% duty cycle.
Setting this bit to 1 inverts the PWM output, so 100% duty cycle corresponds to a logic low output.
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相關代理商/技術參數(shù) |
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| ADT7473ARQZ-1RL | 功能描述:板上安裝溫度傳感器 FAN CNTRLR/INT MON RoHS:否 制造商:Omron Electronics 輸出類型:Digital 配置: 準確性:+/- 1.5 C, +/- 3 C 溫度閾值: 數(shù)字輸出 - 總線接口:2-Wire, I2C, SMBus 電源電壓-最大:5.5 V 電源電壓-最小:4.5 V 最大工作溫度:+ 50 C 最小工作溫度:0 C 關閉: 安裝風格: 封裝 / 箱體: 設備功能:Temperature and Humidity Sensor |
| ADT7473ARQZ-REEL | 功能描述:板上安裝溫度傳感器 FAN CNTRLR/INT MON RoHS:否 制造商:Omron Electronics 輸出類型:Digital 配置: 準確性:+/- 1.5 C, +/- 3 C 溫度閾值: 數(shù)字輸出 - 總線接口:2-Wire, I2C, SMBus 電源電壓-最大:5.5 V 電源電壓-最小:4.5 V 最大工作溫度:+ 50 C 最小工作溫度:0 C 關閉: 安裝風格: 封裝 / 箱體: 設備功能:Temperature and Humidity Sensor |
| ADT7473ARQZ-REEL7 | 功能描述:IC REMOTE THERMAL CTRLR 16QSOP RoHS:是 類別:集成電路 (IC) >> PMIC - 熱管理 系列:dBCool® 標準包裝:1 系列:- 功能:溫度監(jiān)控系統(tǒng)（傳感器） 傳感器類型:內(nèi)部和外部 感應溫度:-40°C ~ 125°C，外部傳感器 精確度:±2.5°C 本地（最大值），±5°C 遠程（最大值） 拓撲:ADC，比較器，寄存器庫 輸出類型:2 線 SMBus? 輸出警報:無 輸出風扇:無 電源電壓:2.7 V ~ 5.5 V 工作溫度:-40°C ~ 125°C 安裝類型:表面貼裝 封裝/外殼:SOT-23-8 供應商設備封裝:SOT-23-8 包裝:Digi-Reel® 其它名稱:296-22675-6 |
| ADT7473ARQZ-RL7 | 功能描述:板上安裝溫度傳感器 FAN CNTRLR/INT MON RoHS:否 制造商:Omron Electronics 輸出類型:Digital 配置: 準確性:+/- 1.5 C, +/- 3 C 溫度閾值: 數(shù)字輸出 - 總線接口:2-Wire, I2C, SMBus 電源電壓-最大:5.5 V 電源電壓-最小:4.5 V 最大工作溫度:+ 50 C 最小工作溫度:0 C 關閉: 安裝風格: 封裝 / 箱體: 設備功能:Temperature and Humidity Sensor |
| ADT7473EBZEVB | 功能描述:EVALUATION BOARD ADT7473 制造商:on semiconductor 系列:* 零件狀態(tài):在售 標準包裝:1 |
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