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Datasheet Linear Technology LT2940IDD#PBF

Power and Current Monitor

Datasheets

• Скачать » Datasheet PDF, 350 Кб, Файл закачен: 31 июл 2016
  LT2940 - Power and Current Monitor
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  LT2940
  Power and Current Monitor
  FEATURES n DESCRIPTION Four-Quadrant Power Measurement
  В±5% Power Measurement Accuracy
  4V to 80V High Side Sense, 100V Max
  Current Mode Power and Current Outputs
  Output Bandwidth Exceeds 500kHz
  В±3% Current Measurement Accuracy
  6V to 80V Supply Range, 100V Max
  Inverting and Noninverting Open-Collector
  Comparator Outputs
  Available in 12-Pin DFN (3mm Г— 3mm) and 12-Lead
  MSOP Packages The LTВ®2940 measures a high side current and a differential voltage, multiplies them and outputs a current
  proportional to instantaneous power. Bidirectional high
  side currents and bipolar voltage differences are correctly
  handled by the four-quadrant multiplier and push-pull
  output stage, which allows the LT2940 to indicate forward
  and reverse power flow.
  An integrated comparator with inverting and noninverting open-collector outputs makes the LT2940 a complete
  power level monitor. In addition, an output current proportional to the sensed high side current allows current
  monitoring. The current mode outputs make scaling,
  п¬Ѓltering and time integration as simple as selecting external resistors and/or capacitors. APPLICATIONS Board Level Power and Current Monitoring
  Line Card and Server Power Monitoring ...

Цены

Корпус / Упаковка / Маркировка

Параметры

Экологический статус

Статьи

• Скачать » Статьи - LT Journal PDF, 1.3 Мб, Файл опубликован: 30 июн 2010
  Unique Analog Multiplier Continuously Monitors Instantaneous Power and Simplifies Design of Power Control Loops
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  Unique Analog Multiplier Continuously Monitors
  Instantaneous Power and Simplifies Design of
  Power Control Loops
  Mitchell Lee and Thomas DiGiacomo As energy consumption in electronics is increasingly scrutinized, the ability to accurately
  monitor and control power becomes an important part of any system design. To measure
  instantaneous power, one must simultaneously measure current and voltage and multiply
  the results. While traditional analog multiplier ICs can perform continuous multiplication,
  they typically lack the operating range and input sensitivity required for power monitoring
  and control. The high price of the multiplier itself and the necessary additional signal
  conditioning circuits make such a solution costly both in dollars and in board area.
  Digital solutions, on the other hand,
  can provide sensitivity and dynamic
  range, but lack the ability to continuously monitor power. For instance, the
  LTC4151 combines a 7V to 80V operating
  voltage range, a current sense amplifier,
  a MUX, and an I2C interface with a 12-bit
  ADC to measure current and voltage.
  Multiplication is performed in a host
  processor. This makes for an accurate
  power monitoring solution, but the 7.5Hz
  conversion rate of the ADC limits its utility in closed loop applications, where it
  is unable to respond to rapid changes.
  The LT2940 power monitor solves the ...

Модельный ряд

• LT2940CDD#PBF LT2940CDD#TRPBF LT2940CMS#PBF LT2940CMS#TRPBF LT2940IDD#PBF LT2940IDD#TRPBF LT2940IMS#PBF LT2940IMS#TRPBF

Классификация производителя

• Monitor, Control and Protection > Power Monitors

Варианты написания:

LT2940IDDPBF, LT2940IDD PBF

На английском языке: Datasheet Linear Technology LT2940IDD#PBF

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