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| 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)： | 66/72頁 |
| 文件大?。?/td> | 1494K |
| 代理商： | ADT7473ARQZ-1REEL |
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ADT7473/ADT7473-1
Rev. C | Page 69 of 72
Table 56. Register 0x78—Configuration Register 3 (Power-On Default = 0x00)
Bit
Name
R/W1
Description
[0]
ALERT
Enable
R/W
ALERT = 0 (default), ADT7473 Pin 5 is configured as PWM2.
ALERT = 1, Pin 5 for ADT7473 (PWM2/SMBALERT) is configured as an SMBALERT interrupt output to
indicate out-of-limit error conditions.
ALERT = 0 (default), ADT7473-1 Pin 5 is configured as THERM_LATCH.
ALERT = 1, Pin 5 for ADT7473-1 (THERM_LATCH/PWM2) is configured as PWM2
[1]
THERM
R/W
THERM Enable = 1 enables THERM functionality on Pin 9. Also determined by Bit 0 and Bit 1 (PIN9FUNC) of
Configuration Register 4. Direction is controlled by Bit 5, Bit 6, and Bit 7 of Configuration Register 5 (0x7C).
When THERM is asserted, if the fans are running and the boost bit is set, the fans run at full speed. THERM
can also be programmed so that a timer monitors the duration THERM has been asserted.
[2]
BOOST
R/W
When THERM is an input and BOOST = 1, assertion of THERM causes all fans to run at the maximum
programmed duty cycle for fail-safe cooling.
[3]
FAST
R/W
FAST = 1, enables fast TACH measurements on all channels. This increases the TACH measurement rate
from once per second to once every 250 ms (4 ×).
[4]
DC1
R/W
DC1 = 1, enables TACH measurements to be continuously made on TACH1. Fans must be driven by dc.
Setting this bit prevents pulse stretching because it is not required for dc-driven motors.
[5]
DC2
R/W
DC2 = 1, enables TACH measurements to be continuously made on TACH2. Fans must be driven by dc.
Setting this bit prevents pulse stretching because it is not required for dc-driven motors.
[6]
DC3
R/W
DC3 = 1, enables TACH measurements to be continuously made on TACH3. Fans must be driven by dc.
Setting this bit prevents pulse stretching because it is not required for dc-driven motors.
[7]
DC4
R/W
DC4 = 1, enables TACH measurements to be continuously made on TACH4. Fans must be driven by dc.
Setting this bit prevents pulse stretching because it is not required for dc-driven motors.
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 57. Register 0x79—THERM Timer Status Register (Power-On Default = 0x00)
Bit
Name
R/W
Description
[7:1]
TMR
Read-only
Times the duration THERM input is asserted. These seven bits read 0 until the THERM assertion time
exceeds 45.52 ms.
[0]
ASRT/
TMR0
Read-only
This bit is set high on the assertion of the THERM input, and is cleared on read. If the THERM assertion time
exceeds 45.52 ms, this bit is set and becomes the LSB of the 8-bit TMR reading. This allows THERM assertion
times from 45.52 ms to 5.82 seconds to be reported back with a resolution of 22.76 ms.
Table 58. Register 0x7A—THERM Timer Limit Register (Power-On Default = 0x00)
Bit
Name
R/W
Description
[7:0]
LIMT
R/W
Sets maximum THERM assertion length allowed before an interrupt is generated. This is an 8-bit limit
with a resolution of 22.76 ms allowing THERM assertion limits of 45.52 ms to 5.82 seconds to be
programmed. If the THERM assertion time exceeds this limit, Bit 5 (F4P) of Interrupt Status Register 2
(Reg. 0x42) is set. If the limit value is 0x00, an interrupt is generated immediately on the assertion of
the THERM input.
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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(biāo)準(zhǔn)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(yīng)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(yuǎn)程（最大值） 拓?fù)?ADC，比較器，寄存器庫 輸出類型:2 線 SMBus? 輸出警報(bào):無 輸出風(fēng)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(yīng)商設(shè)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(zhǔn)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(guān)閉: 安裝風(fēng)格: 封裝 / 箱體: 設(shè)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(zhǔn)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(guān)閉: 安裝風(fēng)格: 封裝 / 箱體: 設(shè)備功能:Temperature and Humidity Sensor |
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| 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(zhǔn)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(guān)閉: 安裝風(fēng)格: 封裝 / 箱體: 設(shè)備功能:Temperature and Humidity Sensor |
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