參數(shù)資料
型號(hào)： LM75AD
廠商： NXP Semiconductors N.V.
元件分類： 溫度/濕度傳感器
英文描述： Digital temperature sensor and thermal watchdog
封裝： LM75AD<SOT96-1 (SO8)|<<http://www.nxp.com/packages/SOT96-1.html<1<week 17, 2005,;LM75AD<SOT96-1 (SO8)|<<http://www.nxp.com/packages/SOT96-1.html<1<week 17, 2005,;LM
文件頁(yè)數(shù)： 10/24頁(yè)
文件大?。?/td> 137K
代理商： LM75AD
LM75A_4
NXP B.V. 2007. All rights reserved.
Product data sheet
Rev. 04 — 10 July 2007
10 of 24
NXP Semiconductors
LM75A
Digital temperature sensor and thermal watchdog
The main difference between the two modes is that in OS comparator mode, the OS
output becomes active when Temp has exceeded T
os
and reset when Temp has dropped
below T
hyst
, reading a register or putting the device into shutdown mode does not change
the state of the OS output; while in OS interrupt mode, once it has been activated either
by exceeding T
os
or dropping below T
hyst
, the OS output will remain active indefinitely until
reading a register, then the OS output is reset.
Temperature limits T
os
and T
hyst
must be selected so that T
os
> T
hyst
. Otherwise, the OS
output state will be undefined.
7.7 OS fault queue
Fault queue is defined as the number of faults that must occur consecutively to activate
the OS output. It is provided to avoid false tripping due to noise. Because faults are
determined at the end of data conversions, fault queue is also defined as the number of
consecutive conversions returning a temperature trip. The value of fault queue is
selectable by programming the two bits B4 and B3 (OS_F_QUE[1:0]) in register Conf.
Notice that the programmed data and the fault queue value are not the same.
Table 14
shows the one-to-one relationship between them. At power-up, fault queue data = 0 and
fault queue value = 1.
7.8 Shutdown mode
The device operation mode is selected by programming bit B0 (SHUTDOWN) of register
Conf. Setting bit SHUTDOWN to logic 1 will put the device into shutdown mode. Resetting
bit SHUTDOWN to logic 0 will return the device to normal mode.
In shutdown mode, the device draws a small current of approximately 3.5
μ
A and the
power dissipation is minimized; the temperature conversion stops, but the I
2
C-bus
interface remains active and register write/read operation can be performed. The OS
output remains unchanged.
7.9 Power-up default and power-on reset
The LM75A always powers-up in its default state with:
Normal operation mode
OS comparator mode
T
os
= 80
°
C
T
hyst
= 75
°
C
OS output active state is LOW
Pointer value is logic 0
Table 14.
Fault queue data
OS_F_QUE[1]
0
0
1
1
Fault queue table
Fault queue value
Decimal
1
2
4
6
OS_F_QUE[0]
0
1
0
1
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相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
LM75AD,112 功能描述:板上安裝溫度傳感器 I2C LOCAL +/- 2OC TS 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
LM75AD,118 功能描述:板上安裝溫度傳感器 I2C LOCAL +/- 2OC TS 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
LM75AD.112 制造商:PHILIPS 制造商全稱:NXP Semiconductors 功能描述:Digital temperature sensor and thermal watchdog
LM75AD/G-T 功能描述:IC I2C TEMP SNSR/WATCHDOG 8-SOIC RoHS:是 類別:集成電路 (IC) >> PMIC - 熱管理 系列:- 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(kù) 輸出類型:2 線 SMBus? 輸出警報(bào):無(wú) 輸出風(fēng)扇:無(wú) 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
LM75AD112 制造商:Rochester Electronics LLC 功能描述: 制造商:NXP 功能描述: 制造商:NXP Semiconductors 功能描述:
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