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參數資料
| 型號： | ADM1029ARQZ-R7 |
| 廠商： | ON Semiconductor |
| 文件頁數： | 28/50頁 |
| 文件大小： | 402K |
| 描述： | IC SENSOR 2TEMP/FAN CTRL 24QSOP |
| 產品變化通告： | QSOP 24ld Pkg (MSL) Change 17/Jun/2010 |
| 標準包裝： | 1,000 |
| 功能： | 風扇控制，溫度監控器 |
| 傳感器類型： | 內部和外部 |
| 感應溫度： | 0°C ~ 100°C，外部傳感器 |
| 精確度： | ±1°C 本地，±3°C 遠程 |
| 拓撲： | ADC，風扇控制，寄存器庫 |
| 輸出類型： | 開路漏極 |
| 輸出警報： | 是 |
| 輸出風扇： | 是 |
| 電源電壓： | 3 V ~ 5.5 V |
| 工作溫度： | 0°C ~ 100°C |
| 安裝類型： | 表面貼裝 |
| 封裝/外殼： | 24-SSOP（0.154"，3.90mm 寬） |
| 供應商設備封裝： | 24-QSOP |
| 包裝： | 帶卷 (TR) |
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ADM1029
http://onsemi.com
28
General Purpose Logic Input/Outputs
The ADM1029 has six dual-function pins (see Pin
Function Descriptions section) that may be configured as
general-purpose Logic I/O pins by setting the appropriate
bit(s) of the GPIO Present/AIN Register (address 05h) or as
their alternate functions by clearing these bits.
When configured as GPIO pins, each GPIO pin has a
Behavior Register associated with it (Registers 28h to 2Eh)
that may be used to configure the operation of the pin.
The GPIO pins may be configured as inputs or outputs.
When used as inputs, they may be configured to:
?SPAN class="pst ADM1029ARQZ-R7_2295375_3"> Be Active High or Active Low
?SPAN class="pst ADM1029ARQZ-R7_2295375_3"> Set/Clear a Bit in the Behavior Register when GP Input
Is Asserted/Deasserted
?SPAN class="pst ADM1029ARQZ-R7_2295375_3"> Latch a Bit In the Behavior Register when GP Input Is
Asserted (Must Be Cleared by Software)
?SPAN class="pst ADM1029ARQZ-R7_2295375_3"> Assert CFAULT
when GP Input Asserted
?SPAN class="pst ADM1029ARQZ-R7_2295375_3"> Assert INT
when GP Input Asserted
?SPAN class="pst ADM1029ARQZ-R7_2295375_3"> Set Fan(s) to Alarm Speed when GP Input Asserted
?SPAN class="pst ADM1029ARQZ-R7_2295375_3"> Set Fan(s) to Hot-plug Speed when GP Input Asserted
When Used as Outputs, They May Be Configured to:
?SPAN class="pst ADM1029ARQZ-R7_2295375_3"> Be Active High or Low
?SPAN class="pst ADM1029ARQZ-R7_2295375_3"> Be Asserted If a High Temperature Limit Is Exceeded
?SPAN class="pst ADM1029ARQZ-R7_2295375_3"> Be Asserted If a Temperature Measurement Falls
Below a Low Limit
?SPAN class="pst ADM1029ARQZ-R7_2295375_3"> Be Asserted If a Fan Fault Is Detected
?SPAN class="pst ADM1029ARQZ-R7_2295375_3"> Be Asserted If a Fan Tach Limit Is Exceeded
?SPAN class="pst ADM1029ARQZ-R7_2295375_3"> Be Asserted If an AIN High Limit Is Exceeded
?SPAN class="pst ADM1029ARQZ-R7_2295375_3"> Be Asserted If an Analog Input Falls Below a Low
Limit
Figure 39 shows how to configure the GPIO pins to
handle different out-of-limit and fault events.
CFAULT
Output
The Cascade Fault output (CFAULT
), is an open-drain,
active low output, intended to communicate fault conditions
to other ADM1029s in a system, without the intervention of
the host processor. The other ADM1029s may then adjust
their fans speed to compensate, depending on the settings
of various registers.
CFAULT
is asserted if any of the following conditions
occurs:
?SPAN class="pst ADM1029ARQZ-R7_2295375_3"> A Hot-plug Event
?SPAN class="pst ADM1029ARQZ-R7_2295375_3"> Setting Bit 5 of the Configuration Register (Address
01h) forces CFAULT
to be asserted
?SPAN class="pst ADM1029ARQZ-R7_2295375_3"> When a GPIO pin is configured as an input by setting
Bit 0 of the corresponding GPIO Behavior Register and
Bit 2 of the GPIO Behavior Register is also set,
CFAULT
will be asserted when the logic input is
asserted (high or low depending on the polarity bit,
Bit 1 of the corresponding GPIO Behavior Register)
?SPAN class="pst ADM1029ARQZ-R7_2295375_3"> If Bit 0 of a Temp. Fault Action Register is set
(40h Local Sensor, 41h Remote 1, 42h Remote 2),
CFAULT
will be asserted if the corresponding
temperature high limit is exceeded
?SPAN class="pst ADM1029ARQZ-R7_2295375_3"> If Bit 4 of a Temp. Fault Action Register is set,
CFAULT
will be asserted if a temperature input crosses
the corresponding temperature low limit, the direction
depending on the setting of Bit 3 of the Temp. Fault
Action Register. (0 = CFAULT
when input goes below
low limit, 1 = CFAULT
when input goes above low
limit)
?SPAN class="pst ADM1029ARQZ-R7_2295375_3"> If Bit 0 of a Fan Fault Action Register (18h or 19h) is
set, CFAULT
will be asserted when a tach measurement
for the corresponding fan exceeds the set limit
?SPAN class="pst ADM1029ARQZ-R7_2295375_3"> If Bit 0 of a Fan Fault Action Register (18h or 19h) is
set, CFAULT
will be asserted, when the fan fault input
pin for the corresponding fan is asserted (low)
?SPAN class="pst ADM1029ARQZ-R7_2295375_3"> If Bit 0 of an AIN Behavior Register is set
(50h AIN0, 51h AIN1), CFAULT
will be asserted if
the corresponding AIN high limit is exceeded
?SPAN class="pst ADM1029ARQZ-R7_2295375_3"> If Bit 4 of an AIN Behavior Register is set, CFAULT
will be asserted if an analog input crosses the
corresponding AIN low limit, the direction depending
on the setting of Bit 3 of the AIN Behavior Register.
(0 = CFAULT
when input goes below low limit,
1 = CFAULT
when input goes above low limit).
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| ADM1030ARQ | 功能描述:IC SNSR TEMP/FAN PWM CTRL 16QSOP RoHS:否 類別:集成電路 (IC) >> PMIC - 熱管理 系列:- 標準包裝:1 系列:- 功能:溫度監控系統（傳感器） 傳感器類型:內部和外部 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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