- 您現(xiàn)在的位置：買賣IC網(wǎng) > PDF目錄384601 > LM95214CISDX (NATIONAL SEMICONDUCTOR CORP) Quad Remote Diode and Local Temperature Sensor with SMBus Interface PDF資料下載
參數(shù)資料
| 型號(hào)： | LM95214CISDX |
| 廠商： | NATIONAL SEMICONDUCTOR CORP |
| 元件分類： | 溫度/濕度傳感器 |
| 英文描述： | Quad Remote Diode and Local Temperature Sensor with SMBus Interface |
| 中文描述： | DIGITAL TEMP SENSOR-SERIAL, 11BIT(s), 2Cel, RECTANGULAR, SURFACE MOUNT |
| 封裝： | LLP-14 |
| 文件頁數(shù)： | 10/38頁 |
| 文件大?。?/td> | 448K |
| 代理商： | LM95214CISDX |
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頁當(dāng)前第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
grammable conversion rate register as well as a shutdown
mode for power savings. One round of conversions can be
triggered in shutdown mode by writing to the one-shot register
through the SMBus interface. LM95214 can be programmed
to turn off unused channels for more power savings.
The LM95214 register set has an 8-bit data structure and in-
cludes:
1.
Temperature Value Registers with signed format
—
Most-Significant-Byte (MSB) and Least-Significant-
Byte (LSB) Local Temperature
—
MSB and LSB Remote Temperature 1
—
MSB and LSB Remote Temperature 2
—
MSB and LSB Remote Temperature 3
—
MSB and LSB Remote Temperature 4
2.
Temperature Value Registers with unsigned format
—
MSB and LSB Remote Temperature 1
—
MSB and LSB Remote Temperature 2
—
MSB and LSB Remote Temperature 3
—
MSB and LSB Remote Temperature 4
3.
Diode Configuration Registers
—
Diode Model Select
—
Remote 1 Offset
—
Remote 2 Offset
—
Remote 3 Offset
—
Remote 4 Offset
4.
General Configuration Registers
—
Configuration (Standby, Fault Queue enable for
Remote 3 and 4; Conversion Rate)
—
Channel Conversion Enable
—
Filter Setting for Remote 1 and 2
—
1-Shot
5.
Status Registers
—
Main Status Register (Busy bit, Not Ready, Status
Register 1 to 4 Flags)
—
Status 1 (diode fault)
—
Status 2 (TCRIT1)
—
Status 3 (TCRIT2)
—
Status 4 (TCRIT3)
6.
Mask Registers
—
TCRIT1 Mask
—
TCRIT2 Mask
—
TCRIT3 Mask
7.
Limit Registers
—
Local Tcrit Limit
—
Remote 1 Tcrit-1 Limit
—
Remote 2 Tcrit-1 Limit
—
Remote 3 Tcrit Limit
—
Remote 4 Tcrit Limit
—
Remote 1 Tcrit-2 and Tcrit-3 Limit
—
Remote 2 Tcrit-2 and Tcrit-3 Limit
—
Common Tcrit Hysteresis
8.
Manufacturer ID Register
9.
Revision ID Register
1.1 CONVERSION SEQUENCE
The LM95214 takes approximately 190 ms to convert the Lo-
cal Temperature, Remote Temperatures 1 through 4, and to
update all of its registers. These conversions for each thermal
diode are addressed in a round robin sequence. Only during
the conversion process the busy bit (D7) in Status register
(02h) is high. The conversion rate may be modified by the
Conversion Rate bits found in the Configuration Register
(03h). When the conversion rate is modified a delay is insert-
ed between each round of conversions, the actual time for
each round remains at 190 ms (typical all channels enabled).
The time a round takes depends on the number of channels
that are on. Different conversion rates will cause the LM95214
to draw different amounts of average supply current as shown
in
Figure 1
. This curve assumes all the channels are on. If
channels are turned off the average current will drop since the
round robin time will decrease and the shutdown time will in-
crease during each conversion interval.
30006106
FIGURE 1. Conversion Rate Effect on Power Supply
Current
1.2 POWER-ON-DEFAULT STATES
LM95214 always powers up to these known default states.
The LM95214 remains in these states until after the first con-
version.
1.
All Temperature readings set to 0°C until the end of the
first conversion
2.
Remote offset for all channels 0°C
3.
Configuration: Active converting, Fault Queue enabled
for Remote 3 and 4
4.
Continuous conversion with all channels enabled,
time = 1s
5.
Enhanced digital filter enabled for Remote 1 and 2
6.
Status Registers depends on state of thermal diode
inputs
7.
Local and Remote Temperature Limits for TCRIT1,
TCRIT2 and TCRIT3 outputs:
Output
Pin
Remote
4
(°C)
(°C)
TCRIT1 Masked,
85
85
TCRIT2
85
85
TCRIT3
85
85
Temperature Channel Limit
Remote
3
2
(°C)
Masked,
110
Remote
Remote
1
(°C)
110
Local
(°C)
Masked,
85
85
Masked,
85
85
85
Masked,
85
Masked,
85
8.
Manufacturers ID set to 01h
www.national.com
10
L
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| LM95221CIMM | Dual Remote Diode Digital Temperature Sensor with SMBus Interface |
| LM95221CIMMX | Dual Remote Diode Digital Temperature Sensor with SMBus Interface |
| LM95221 | Dual Remote Diode Digital Temperature Sensor with SMBus Interface |
| LM95245 | Precision Remote Diode Digital Temperature Sensor with TruTherm⑩ BJT Beta Compensation Technology for 45nm Process |
| LM95245CIMM | Precision Remote Diode Digital Temperature Sensor with TruTherm⑩ BJT Beta Compensation Technology for 45nm Process |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| LM95214CISDX/NOPB | 功能描述:板上安裝溫度傳感器 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 |
| LM95214EB/NOPB | 功能描述:溫度傳感器開發(fā)工具 LM95214EVAL BOARD RoHS:否 制造商:Texas Instruments 產(chǎn)品類型:Temperature Sensors and Control ICs 工具用于評(píng)估:MSP430G2553 接口類型:USB 工作電源電壓: 工作電源電流: |
| LM95221 | 制造商:NSC 制造商全稱:National Semiconductor 功能描述:Dual Remote Diode Digital Temperature Sensor with SMBus Interface |
| LM95221CIMM | 功能描述:板上安裝溫度傳感器 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 |
| LM95221CIMM/NOPB | 功能描述:板上安裝溫度傳感器 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 |
發(fā)布緊急采購，3分鐘左右您將得到回復(fù)。