參數(shù)資料
型號(hào)： ADT7470ARQZ
廠商： ANALOG DEVICES INC
元件分類： 溫度/濕度傳感器
英文描述： DIGITAL TEMP SENSOR-SERIAL, 7BIT(s), RECTANGULAR, SURFACE MOUNT
封裝： ROHS COMPLIANT, MO-137AB, QSOP-16
文件頁數(shù)： 7/40頁
文件大?。?/td> 962K
代理商： ADT7470ARQZ
ADT7470
Rev. C | Page 15 of
40
TEMPERATURE MEASUREMENT LIMITS
High and low temperature limits can be individually set for
each of the TPM05/06s that the ADT7470 is monitoring. The
temperature limit registers are at address 0x44 to 0x57. The
power-on default value for all TMP05/06 lower limits is 127°C
(0x81). The power –on default value for all TMP05/06 upper
limits is +127°C (0x7F). See Table 9 for details on the
temperature limit registers.
If the temperature measured from a TMP05/06 exceeds the
upper or lower limit, then a status bit in the Interrupt Status
registers will be set to 1. See Table 12 and Table 13 for more
details on the temperature status bits.
SMBALERT will assert is any temperature exceeds either the
upper or lower limits. The temperature measurements can be
masked as interrupt sources for SMBALERT using the interrupt
mask registers, 0x72 and 0x73. See
and
for
more details on the interrupt mask registers.
THERMAL ZONES FOR AUTOMATIC FAN CONTROL
The ADT7470 can control up to four independent thermal zones
with individual fans. The user can configure which TMP05
controls which fan via register 0x7C and 0x7D.For each of the four
thermal zones, an individual TMP05, or the hottest TMP05 in the
daisy chain, can control the fan. In a system with n TMP05s, it is
possible to have 1 or n TMP05s controlling each fan.
Thermal Zone TMIN
For each of the four thermal zones, the user can configure the
minimum temperature at which the fans run. Registers 0x6E to
0x71 should be configured with the minimum temperature for
each thermal zone. When the temperature exceeds TMIN for that
thermal zone, the fans run at minimum speed (PWMMIN). The
fan speed increases to maximum speed (PWMMAX) at [TMIN +
20°C]. Fan on/off hysteresis is set at 4°C so that the fans turn off
4°C below the temperature at which they turn on. This prevents
fan chatter in the system.
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ADT7473 制造商:ONSEMI 制造商全稱:ON Semiconductor 功能描述:dbCOOL Remote Thermal Monitor and Fan Control
ADT7473_11 制造商:ONSEMI 制造商全稱:ON Semiconductor 功能描述:dbCOOL Remote Thermal Monitor and Fan Control
ADT7473ARQZ 功能描述:板上安裝溫度傳感器 THERMAL MONITOR FAN CONTROLLER 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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