Datasheet Linear Technology LT2940IDD#PBF Power and Current Monitor Datasheets- Скачать » Datasheet, PDF, 350 Кб, Файл закачен 31-07-2016
LT2940 - Power and Current Monitor Выписка из документа ↓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 / МаркировкаКорпус | 3x3 DFN-12 |
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Код корпуса | DD |
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Индекс корпуса | 05-08-1725 |
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ПараметрыDemo Boards | DC1495A |
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Design Tools | LTspice Model |
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Экспортный контроль | нет |
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Основные особенности | Voltage Monitor, Current Monitor, Power Monitor |
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I/O | Complementary Open Collector Comparator |
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Isupply | 3.5 мА |
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Number of Supplies | 1 |
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Рабочий диапазон температур | от -40 до 85 °C |
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Vin Range | 4V to 80V |
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Экологический статусСтатьи- Скачать » Статьи - LT Journal, PDF, 1.3 Мб, 30-06-2010
Unique Analog Multiplier Continuously Monitors Instantaneous Power and Simplifies Design of Power Control Loops Выписка из документа ↓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 рядСерия: LT2940 (8) 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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