- 您現(xiàn)在的位置：買賣IC網(wǎng) > PDF目錄373995 > ADM1033ARQZ (Analog Devices, Inc.) Thermal Monitor and Fan Speed (RPM) Controller PDF資料下載
參數(shù)資料
| 型號： | ADM1033ARQZ |
| 廠商： | Analog Devices, Inc. |
| 英文描述： | Thermal Monitor and Fan Speed (RPM) Controller |
| 中文描述： | 熱監(jiān)測和風扇轉速（RPM）控制器 |
| 文件頁數(shù)： | 20/40頁 |
| 文件大小： | 1164K |
| 代理商： | ADM1033ARQZ |
第1頁第2頁第3頁第4頁第5頁第6頁第7頁第8頁第9頁第10頁第11頁第12頁第13頁第14頁第15頁第16頁第17頁第18頁第19頁當前第20頁第21頁第22頁第23頁第24頁第25頁第26頁第27頁第28頁第29頁第30頁第31頁第32頁第33頁第34頁第35頁第36頁第37頁第38頁第39頁第40頁
ADM1033
LIMITS, STATUS REGISTERS, AND INTERRUPTS
High and low limits are associated with each measurement
channel on the ADM1033 and form the basis of system status
monitoring. The user can set a status bit for any out-of-limit
condition and detect it by polling the device. Alternatively,
SMBusALERTs can be generated to flag a processor or
microcontroller of an out-of-limit condition.
Rev. 0 | Page 20 of 40
8-BIT LIMITS
Table 14 and Table 15 list all the 8-bit limits on the ADM1033:
Table 14. Temperature Limit Registers
Register
Description
0x0B
Local High Limit
0x0C
Local Low Limit
0x0D
Local THERM Limit
0x0E
Remote High Limit
0x0F
Remote Low Limit
0x10
Remote THERM Limit
Default
0x8B (75°C)
0x54 (20°C)
0x95 (85°C)
0x8B (75°C)
0x54 (20°C)
0x95 (85°C)
Table 15. THERM Limit Register
Register
Description
0x19
THERM % Limit
OUT-OF-LIMIT COMPARISONS
The ADM1033 measures all parameters in a round-robin
format and sets the appropriate status bit for out-of limit
conditions. Comparisons are made differently, depending on
whether the measured value is compared to a high or low limit.
Default
0xFF
High Limit
: ≥
Comparison Performed
Low Limit
: <
Comparison Performed
ANALOG MONITORING CYCLE TIME
The analog monitoring cycle time begins on power-up or, if
monitoring has been disabled, by writing a 1 to the monitor/
STBY bit of Configuration Register 1 (Address 0x01). The
ADC measures each one of the analog inputs in turn; as each
measurement is completed, the result is automatically stored in
the appropriate value register. The round-robin monitoring
cycle continues, unless it is disabled. To disable the cycle, write
a 0 to the monitor/STBY bit (Bit 0) of Configuration Register 1
(Address 0x01).
The ADC performs round-robin conversions and takes 11 ms
for the local temperature measurement and 32 ms for each
remote temperature measurement with averaging enabled.
The total monitoring cycle time for the average temperatures is,
therefore, nominally
32 + 11 = 43 ms
Once the conversion time elapses, the round robin starts again.
For more information, refer to the Conversion Rate Register
section.
Fan TACH measurements take place in parallel and are not
synchronized with the temperature measurements.
STATUS REGISTERS
The results of limit comparisons are stored in the status
registers. A 1 represents an out-of-limit measurement; a 0
represents an in-limit measurement. The status registers are
located at Addresses 0x4F to 0x51.
If the measurement is outside its limits, the corresponding
status register bit is set to 1. It remains set at 1 until the
measurement falls back within its limits and either the status
register is read or an ARA is completed.
To poll the state of the various measurements, read the status
registers over the serial bus. If Bit 0 (ALERT low) of Status
Register 3 (Address 0x51) is set, this means the ADM1033 has
pulled the ALERT output low.
Pin 14 is an SMBusALERT output. This pin automatically
notifies the system supervisor of an out-of-limit condition.
Reading the status register clears the status bit, as long as the
error condition has been cleared.
Pin 3 is an ALERT Comp output. This pin asserts low when
ever an unmasked measurement goes outside its limit. Unlike
SMBusALERT, it automatically resets once the measurement
falls back within the programmed limits.
Status register bits are sticky. Whenever a status bit is set due to
an out-of-limit condition, it remains set—even after the trigger-
ing event has cleared. The only way to clear the status bit is to
read the status register (after the triggering event has cleared).
Interrupt mask registers (Reg. 0x08, Reg. 0x09, Reg. 0x0A) allow
individual interrupt sources to be masked from causing an
ALERT. If one of these masked interrupt sources goes out of
limit, its associated status bit is set in the status register.
相關PDF資料 |
PDF描述 |
|---|---|
| ADM1033ARQZ-REEL | Thermal Monitor and Fan Speed (RPM) Controller |
| ADM1033ARQZ-REEL7 | Thermal Monitor and Fan Speed (RPM) Controller |
| ADM1041ARQ-REEL | Secondary-Side Controller with Current Share and Housekeeping |
| ADM1041ARQ-REEL7 | Secondary-Side Controller with Current Share and Housekeeping |
| ADM1041 | Secondary-Side Controller with Current Share and Housekeeping |
相關代理商/技術參數(shù) |
參數(shù)描述 |
|---|---|
| ADM1033ARQZ-REEL | 功能描述:板上安裝溫度傳感器 +/- 1 C Digital 2-Wire 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 |
| ADM1033ARQZ-REEL7 | 功能描述:IC THERM/FAN SPEED CTRLR 16-QSOP RoHS:是 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(jiān)控系統(tǒng)（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 |
| ADM1033ARQZ-RL7 | 功能描述:IC THERM/FAN SPEED CTLR 16-QSOP RoHS:是 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(jiān)控系統(tǒng)（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 |
| ADM1034 | 制造商:ONSEMI 制造商全稱:ON Semiconductor 功能描述:Thermal Monitor and Fan Speed (RPM) Controller |
| ADM1034ARQ | 制造商:ON Semiconductor 功能描述:Temp Sensor Digital Serial (2-Wire) 16-Pin QSOP Tube 制造商:Rochester Electronics LLC 功能描述:DUAL FAN CONTROLLER, SRC, SMBUS I.C. - Bulk |
發(fā)布緊急采購，3分鐘左右您將得到回復。