Datasheet Linear Technology LTC2945IUD#PBF

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  3mm × 3mm QFN IC Directly Monitors 0V to 80V Supplies: Features I2C Interface, Peak Value Tracking and Runs from Any Supply &mdash LT Journal
  PDF, 3.0 Mb, File published: Jul 9, 2013
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  design features 3mm Г— 3mm QFN IC Directly Monitors 0V to 80V Supplies:
  Features I2C Interface, Peak Value Tracking and Runs from
  Any Supply
  CY Lai Power monitoring in combination with control mechanisms can significantly boost
  system energy efficiency and reliability. The LTC2945 is a highly integrated digital
  power monitoring solution that is compact, rugged and easy-to-use. It is designed to
  fit applications requiring power monitoring with a minimal number of components.
  MONITOR POWER ON ANY SUPPLY The secondary supply exists, but is not
  readily accessible—it is inconveniently
  located on the printed circuit board,
  complicating the routing of a power line The LTC2945’s internal current sense
  amplifier features a common mode range
  of 0V to 80V to suit a wide variety of high
  side and low side current sensing applications. Most wide range supply monitors
  available today require a low voltage
  secondary supply for operation, which
  can be undesirable for several reasons: The LTC2945 avoids these problems by
  integrating a high voltage linear regulator
  that can be powered directly from 4V to
  80V supplies. The output of the linear regulator (INTVCC) powers the LTC2945, and can
  be externally bypassed to prevent supply
  noise from corrupting the signal integrity
  of internal circuitry. The linear regulator is …

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Manufacturer's Classification

• Signal Conditioning > Amplifiers > Current Sense Amplifiers
• Monitor, Control and Protection > Power Monitors
• Space & Harsh Environment > Extended Temperature Plastic (H & MP) > Extended Temperature (H & MP) System Monitor

Other Names:

LTC2945IUDPBF, LTC2945IUD PBF