- 您現(xiàn)在的位置：買賣IC網(wǎng) > PDF目錄385478 > LM27CIM5X-2HJ (National Semiconductor Corporation) SOT-23, 3 Degree Celcious Accurate, 120-150 Degree Celcious Factory Preset Thermostat PDF資料下載
參數(shù)資料
| 型號： | LM27CIM5X-2HJ |
| 廠商： | National Semiconductor Corporation |
| 元件分類： | 溫度傳感器 |
| 英文描述： | SOT-23, 3 Degree Celcious Accurate, 120-150 Degree Celcious Factory Preset Thermostat |
| 中文描述： | 采用SOT - 23，3度Celcious準(zhǔn)確，120-150度Celcious廠預(yù)設(shè)溫控器 |
| 文件頁數(shù)： | 1/9頁 |
| 文件大小： | 204K |
| 代理商： | LM27CIM5X-2HJ |
LM27
SOT-23,
±
3C Accurate, 120C-150C Factory Preset
Thermostat
General Description
The LM27 is a precision, single digital-output, low-power
thermostat comprised of an internal reference, DAC, tem-
perature sensor and comparator. Utilizing factory program-
ming, it can be manufactured with different trip points as well
as different digital output functionality. The trip point (T
)
can be preset at the factory to any temperature in the range
of +120C to +150C in 1C increments. The LM27 has one
digital output (OS/OS/US/US), one digital input (HYST) and
one analog output (V
). The digital output stage can be
preset as either open-drain or push-pull. In addition, it can be
factory programmed to be active HIGH or LOW. The digital
output can be factory programmed to indicate an over tem-
perature shutdown event (OS or OS) or an under tempera-
ture shutdown event (US or US). When preset as an over-
temperature shutdown (OS) it will go LOW to indicate that
the die temperature is over the internally preset T
OS
and go
HIGH when the temperature goes below (T
–T
). Simi-
larly, when preprogrammed as an undertemperature shut-
down (US) it will go HIGH to indicate that the temperature is
below T
US
and go LOW when the temperature is above
(T
+T
). The typical hysteresis, T
, can be set to
2C or 10C and is controlled by the state of the HYST pin. A
V
TEMP
analog output provides a voltage that is proportional
to temperature and has a 10.7mV/C output slope.
Currently, there are several standard parts available, see
ordering information for details. For other part options, con-
tact a National Semiconductor Distributor or Sales Repre-
sentative for information on minimum order qualification. The
LM27 is currently available in a 5-lead SOT-23 package.
Applications
n
Microprocessor Thermal Management
n
Appliances
n
Portable Battery Powered Systems
n
Fan Control
n
Industrial Process Control
n
HVAC Systems
n
Electronic System Protection
Features
n
Internal comparator with pin selectable 2C or 10C
hysteresis
n
No external components required
n
Open-drain or push-pull digital output; supports CMOS
logic levels
n
Internal temperature sensor with V
TEMP
output pin
n
V
TEMP
output allows after-assembly system testing
n
Internal voltage reference and DAC for trip-point setting
n
Currently available in 5-pin SOT-23 plastic package
n
Excellent power supply noise rejection
Key Specifications
j
Power Supply Voltage
j
Power Supply Current
2.7V to 5.5V
40μA(max)
15μA(typ)
2C or 10C(typ)
±
3C (max)
j
Hysteresis Temperature
j
Temperature Trip Point Accuracy
LM27CIM5-2HJ Simplified Block Diagram and Connection Diagram
20030701
The LM27CIM5-2HJ has a fixed trip point of 140C.
For other trip point and output function availability,
please see ordering information or contact National Semiconductor.
August 2002
L
3
2002 National Semiconductor Corporation
DS200307
www.national.com
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| LM2830XMF | High Frequency 1.0A Load - Step-Down DC-DC Regulator |
| LM2830 | High Frequency 1.0A Load - Step-Down DC-DC Regulator |
| LM2830XMFX | High Frequency 1.0A Load - Step-Down DC-DC Regulator |
| LM2830ZMF | High Frequency 1.0A Load - Step-Down DC-DC Regulator |
| LM2830ZMFX | High Frequency 1.0A Load - Step-Down DC-DC Regulator |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| LM27CIM5X-2HJ/NOPB | 功能描述:恒溫器 RoHS:否 制造商:Maxim Integrated 功能: 開路溫度: 閉合溫度: 準(zhǔn)確性:+/- 1 C 溫度范圍:- 55 C to + 125 C 電流額定值:500 uA 電壓額定值:2.7 V to 5.5 V 產(chǎn)品:Thermostats |
| LM27CIM5X-ZHJ | 功能描述:恒溫器 RoHS:否 制造商:Maxim Integrated 功能: 開路溫度: 閉合溫度: 準(zhǔn)確性:+/- 1 C 溫度范圍:- 55 C to + 125 C 電流額定值:500 uA 電壓額定值:2.7 V to 5.5 V 產(chǎn)品:Thermostats |
| LM27CIM5X-ZHJ/NOPB | 功能描述:恒溫器 RoHS:否 制造商:Maxim Integrated 功能: 開路溫度: 閉合溫度: 準(zhǔn)確性:+/- 1 C 溫度范圍:- 55 C to + 125 C 電流額定值:500 uA 電壓額定值:2.7 V to 5.5 V 產(chǎn)品:Thermostats |
| LM27CIM5-ZHJ | 功能描述:恒溫器 RoHS:否 制造商:Maxim Integrated 功能: 開路溫度: 閉合溫度: 準(zhǔn)確性:+/- 1 C 溫度范圍:- 55 C to + 125 C 電流額定值:500 uA 電壓額定值:2.7 V to 5.5 V 產(chǎn)品:Thermostats |
| LM27CIM5-ZHJ/NOPB | 功能描述:恒溫器 RoHS:否 制造商:Maxim Integrated 功能: 開路溫度: 閉合溫度: 準(zhǔn)確性:+/- 1 C 溫度范圍:- 55 C to + 125 C 電流額定值:500 uA 電壓額定值:2.7 V to 5.5 V 產(chǎn)品:Thermostats |
發(fā)布緊急采購，3分鐘左右您將得到回復(fù)。