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LM57CISDX-10
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LM57CISDX-10

  • 所属类别:温度传感器
  • 产品名称:电阻可编程温度开关与模拟温度传感器
  • 厂商:NSC
  • 生产批号:10+
  • 封装:LLP
  • 库存状态:有库存
  • 库存量:10000
  • 最低订购量:1
  • 详细资料:点击查找LM57CISDX-10的pdf资料
  • 点击询价
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  • Product Introduction

peculiarity

  • Trip temperature set by external resistor
  • The tolerance of the external resistor contributes to zero error
  • Push-pull and open-drain temperature switch outputs
  • Wide operating temperature and trip temperature range of -50°C to 150°C
  • Very linear analog V temperature temperature sensor output
  • Analog and digital output short-circuit protection
  • The TRIP-TEST pin allows for testing on the system
  • Digital output latching function
  • Very small 2.5 mm 2.5 mm 8-pin LLP package

illustrate

The LM57 is a precision-integrated analog temperature sensor with temperature switch and dual outputs. The trip temperature (T trip) is programmable by using two external 1% resistors. Using a very small package resistor (0.5 mm x 1 mm), the LM57 can be programmed to any 256 temperature while consuming very little board space. The V temperature output provides an analog output voltage, which is proportional to the temperature measured with a negative temperature coefficient (NTC).

Built-in temperature hysteresis (T HYST) thermal oscillation to keep the output stable. The digital temperature switch output will go when the die temperature exceeds T trip, and will release when the temperature is lower than a certain temperature is equal to T tripping minus T HYST drop. The digital output, more than one ton, is a highly effective push-pull structure. ^ TOVER, Other Digital Outputs, Low Active Active, Open Drain Construction.

The driving stroke test input high will make the digital output. A processor can read the logic level output by the temperature switch, confirming that they change their positive state. This allows for in-situ verification, comparison, and output of circuit functionality after system assembly. When the TEST pin is high, the step-skipping reference voltage appears on the VTEMP pin. The system can use this voltage to calibrate the sensor more tightly. The bundling is handed over to the trip test T to output the latch after the number of people. It can clear LM57 that forces tripping tests low or closed.

Since it consumes only 28μA and its maximum supply, it has a very low self-heating, approximately 0.02°C, still air.

Key specifications:

Supply voltage

2.4V to 5.5V

Supply current

24μA (typical)

Temperature switching accuracy

± 1.5 ° C。

Analog (V-temperature) accuracy

± 0.7℃

Operating temperature

-50°C to 150°C

The lag range

5℃,10℃


apply

  • cell phone
  • Wireless transceiver
  • Digital camera
  • Personal Digital Assistant (PDA)
  • Battery management
  • Car
  • disk drive
  • Game
  • household appliance

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