Datasheet Linear Technology LTC2997 — 数据表

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  High Accuracy (±1°C) Temperature Sensors Improve System Performance and Reliability &mdash LT Journal
  PDF, 4.8 Mb, 档案已发布: Jan 17, 2013
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  January 2013 I N T H I S I S S U E 2.7V to 40V monolithic
  buck-boost regulates
  through automotive
  cold-crank and load-dump
  transients 9 precision monolithic Volume 22 Number 4 High Accuracy (В±1В°C) Temperature
  Sensors Improve System
  Performance and Reliability
  Christoph Schwoerer and Gerd Trampitsch op amp works from
  В±4.75V to В±70V 14 bus buffers simplify design of
  large, noisy I2C systems 17 The march toward increasingly dense computing power has
  amplified the challenges related to heat. In many systems, the
  capabilities of the cooling system are a significant limitation to
  overall performance. Standard cooling components—bulky heat
  sinks and power-hungry noisy fans (or expensive
  quiet ones)—impose size limitations on tightly
  packed electronics. The only way to maximize
  performance, minimize cooling requirements,
  and ensure the health of the electronics is
  with accurate, precise and comprehensive
  temperature monitoring throughout the system.
  With this in mind, Linear Technology has developed a family of highly
  accurate temperature monitors that can be easily distributed throughout
  a system. Included in this family: The LTCВ®2997 accurately measures either its own temperature or the …

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  Making Accurate Temperature Measurements with Devices with Different Ideality Factors &mdash LT Journal
  PDF, 261 Kb, 档案已发布: Apr 19, 2017
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  Making Accurate Temperature Measurements with Devices
  with Different Ideality Factors
  Hamza Salman Afzal and Shuilin Tian The ability to accurately measure temperature is critical
  to the reliable operation of power systems. Accurate
  temperature data can reveal the instantaneous health of a
  system, and enable real-time protection functions such as
  thermal shutdown. For instance, significant rates of change
  in temperature can indicate increased power consumption.
  If a proper temperature feedback loop is implemented, this
  information can be used to reduce power consumption
  before temperatures escalate to dangerous levels.
  Perhaps the least expensive and most
  ubiquitous temperature sensor is a diode.
  A silicon p-n junction has a forward
  drop of approximately 700mV and a
  temperature coefficient of -2.2mV/C
  at room temperature. This sensitivity
  to temperature is exploited in many
  systems as a means of measuring
  temperature by simply biasing the diode
  with a constant current and measuring
  the resulting voltage (see Figure 1)
  This method has achieved wide acceptance …

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制造商分类

• Monitor, Control and Protection > Temperature Monitors > Analog Temperature Monitors
• Space & Harsh Environment > Extended Temperature Plastic (H & MP) > Extended Temperature (H & MP) System Monitor