Datasheet Linear Technology LT2940 — Даташит

Производитель	Linear Technology
Серия	LT2940

Power and Current Monitor

Datasheets

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PDF, 350 Кб, Файл закачен: 31 июл 2016

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Цены

Купить LT2940 на РадиоЛоцман.Цены — от 147 до 949 ₽ 33 предложений от 23 поставщиков Monitor 6V to 80V Automotive 12Pin MSOP Tube
Akcel Весь мир	LT2940CMS#PBF Analog Devices	от 147 ₽
Utmel Весь мир	LT2940CMS#PBF Analog Devices	от 151 ₽
ЧипСити Россия	LT2940CMS#PBF Linear Technology	538 ₽
FAV Technology Весь мир	LT2940CDD#TRPBF Analog Devices	по запросу

Выбираем схему BMS для заряда литий-железофосфатных (LiFePO4) аккумуляторов

Корпус / Упаковка / Маркировка

	LT2940CDD#PBF	LT2940CDD#TRPBF	LT2940CMS#PBF	LT2940CMS#TRPBF	LT2940IDD#PBF	LT2940IDD#TRPBF	LT2940IMS#PBF	LT2940IMS#TRPBF
N	1	2	3	4	5	6	7	8
Корпус	3x3 DFN-12 Габаритный чертеж корпуса	3x3 DFN-12 Габаритный чертеж корпуса	MS-12 Габаритный чертеж корпуса	MS-12 Габаритный чертеж корпуса	3x3 DFN-12 Габаритный чертеж корпуса	3x3 DFN-12 Габаритный чертеж корпуса	MS-12 Габаритный чертеж корпуса	MS-12 Габаритный чертеж корпуса
Код корпуса	DD	DD	MS	MS	DD	DD	MS	MS
Индекс корпуса	05-08-1725	05-08-1725	05-08-1668	05-08-1668	05-08-1725	05-08-1725	05-08-1668	05-08-1668
Количество выводов	12	12	12	12	12	12	12	12

Параметры

Parameters / Models	LT2940CDD#PBF	LT2940CDD#TRPBF	LT2940CMS#PBF	LT2940CMS#TRPBF	LT2940IDD#PBF	LT2940IDD#TRPBF	LT2940IMS#PBF	LT2940IMS#TRPBF
Demo Boards	DC1495A	DC1495A	DC1495A	DC1495A	DC1495A	DC1495A	DC1495A	DC1495A
Design Tools	LTspice Model	LTspice Model	LTspice Model	LTspice Model	LTspice Model	LTspice Model	LTspice Model	LTspice Model
Экспортный контроль	нет	нет	нет	нет	нет	нет	нет	нет
Основные особенности	Voltage Monitor, Current Monitor, Power Monitor	Voltage Monitor, Current Monitor, Power Monitor	Voltage Monitor, Current Monitor, Power Monitor	Voltage Monitor, Current Monitor, Power Monitor	Voltage Monitor, Current Monitor, Power Monitor	Voltage Monitor, Current Monitor, Power Monitor	Voltage Monitor, Current Monitor, Power Monitor	Voltage Monitor, Current Monitor, Power Monitor
I/O	Complementary Open Collector Comparator	Complementary Open Collector Comparator	Complementary Open Collector Comparator	Complementary Open Collector Comparator	Complementary Open Collector Comparator	Complementary Open Collector Comparator	Complementary Open Collector Comparator	Complementary Open Collector Comparator
Isupply, мА	3.5	3.5	3.5	3.5	3.5	3.5	3.5	3.5
Number of Supplies	1	1	1	1	1	1	1	1
Рабочий диапазон температур, °C	от 0 до 70	от 0 до 70	от 0 до 70	от 0 до 70	от -40 до 85	от -40 до 85	от -40 до 85	от -40 до 85
Vin Range	4V to 80V	4V to 80V	4V to 80V	4V to 80V	4V to 80V	4V to 80V	4V to 80V	4V to 80V

Экологический статус

	LT2940CDD#PBF	LT2940CDD#TRPBF	LT2940CMS#PBF	LT2940CMS#TRPBF	LT2940IDD#PBF	LT2940IDD#TRPBF	LT2940IMS#PBF	LT2940IMS#TRPBF
RoHS	Совместим	Совместим	Совместим	Совместим	Совместим	Совместим	Совместим	Совместим

Статьи

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Unique Analog Multiplier Continuously Monitors Instantaneous Power and Simplifies Design of Power Control Loops &mdash LT Journal
PDF, 1.3 Мб, Файл опубликован: 30 июн 2010
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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

Серия: LT2940 (8)

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

Классификация производителя

Monitor, Control and Protection > Power Monitors