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參數(shù)資料
| 型號： | ADT7473ARQZ-1REEL |
| 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)： | 63/72頁 |
| 文件大?。?/td> | 1494K |
| 代理商： | ADT7473ARQZ-1REEL |
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ADT7473/ADT7473-1
Rev. C | Page 66 of 72
Register Address
R/W2
Description
Power-On Default
0x67
R/W
Remote 1 temperature TMIN.
0x9A (90°C)
0x68
R/W
Local temperature TMIN.
0x9A (90°C)
0x69
R/W
Remote 2 temperature TMIN.
0x9A (90°C)
1 These are the TMIN registers for each temperature channel. When the temperature measured exceeds TMIN, the appropriate fan runs at minimum speed and increases
with temperature according to TRANGE.
2 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 45. THERM Limit Registers
Register Address
R/W2
Description
Power-On Default
0x6A
R/W
Remote 1 THERM limit.
0xA4 (100°C)
0x6B
R/W
Local THERM limit.
0xA4 (100°C)
0x6C
Remote 2 THERM
R/W
limit.
ADT7473: 0xA4 (100°C)
ADT7473-1: 0xC8 (136°C)
1 If any temperature measured exceeds its THERM limit, all PWM outputs drive their fans at 100% duty cycle. This is a fail-safe mechanism incorporated to cool the
system in the event of a critical overtemperature. It also ensures some level of cooling in the event that software or hardware locks up. If set to 0x80, this feature is
disabled. The PWM output remains at 100% until the temperature drops below THERM Limit Hysteresis. If the THERM pin is programmed as an output, then
exceeding these limits by 0.25°C can cause the THERM pin to assert low as an output.
2 These registers become read-only when the Configuration Register 1 lock bit is set to 1. Any further attempts to write to these registers have no effect.
Register Address
Bit Name
Description
Power-On Default
0x6D
R/W
Remote 1 and local temperature hysteresis.
0x44
HYSL [3:0]
Local temperature hysteresis. 0°C to 15°C of hysteresis can
be applied to the local temperature AFC and dynamic TMIN
control loops.
HYSR1 [7:4]
Remote 1 temperature hysteresis. 0°C to 15°C of hysteresis
can be applied to the Remote 1 temperature AFC and
dynamic TMIN control loops.
0x6E
R/W
Remote 2 temperature hysteresis.
0x40
HYSR2 [7:4]
Local temperature hysteresis. 0°C to 15°C of hysteresis can
be applied to the local temperature AFC and dynamic TMIN
control loops.
1 Each 4-bit value controls the amount of temperature hysteresis applied to a particular temperature channel. Once the temperature for that channel falls below its TMIN
value, the fan remains running at PWMMIN duty cycle until the temperature = TMIN – hysteresis. Up to 15°C of hysteresis can be assigned to any temperature channel.
The hysteresis value chosen also applies to that temperature channel, if its THERM limit is exceeded. The PWM output being controlled goes to 100%, if the THERM
limit is exceeded and remains at 100% until the temperature drops below THERM – hysteresis. For acoustic reasons, it is recommended that the hysteresis value not be
programmed less than 4°C. Setting the hysteresis value lower than 4°C causes the fan to switch on and off regularly when the temperature is close to TMIN.
2 These registers become read-only when the Configuration Register 1 lock bit is set to 1. Any further attempts to write to these registers have no effect.
Table 47. XNOR Tree Test Enable Register
Register Address
Bit Name
Description
Power-On Default
0x6F
R/W
XNOR tree test enable register.
0x00
XEN [0]
If the XEN bit is set to 1, the device enters the XNOR tree test
mode. Clearing the bit removes the device from the XNOR
tree test mode.
Reserved
[7:1]
Unused. Do not write to these bits.
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.
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相關代理商/技術參數(shù) |
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| ADT7473ARQZ-1REEL7 | 功能描述:IC THERM MON FAN CTRLR 16-QSOP 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-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 |
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