Datasheet Linear Technology LTC2939HMS#PBF — Даташит

Производитель	Linear Technology
Серия	LTC2939
Модель	LTC2939HMS#PBF

Конфигурируемые мониторы с шестью источниками питания и сторожевым таймером

Datasheets

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PDF, 259 Кб, Файл закачен: 25 окт 2017

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Купить LTC2939HMS#PBF на РадиоЛоцман.Цены — от 158 до 1 030 ₽ 33 предложений от 16 поставщиков Интегральные микросхемы Микросхемы управления электропитанием - Контроллеры источников питания
Зенер Россия и страны ТС	LTC2939HMS#PBF Analog Devices	от 425 ₽
AllElco Electronics Весь мир	LTC2939HMS#PBF Linear Technology	от 498 ₽
Augswan Весь мир	LTC2939HMS#TRPBF Analog Devices	по запросу
Кремний Россия и страны СНГ	LTC2939HMS PBF Linear Technology	по запросу

Популярные АЦП с низкой разрешающей способностью

Корпус / Упаковка / Маркировка

Корпус	MS-16
Код корпуса	MS
Индекс корпуса	05-08-1669

Параметры

Экспортный контроль	нет
Основные особенности	Supervisor
Fifth Reset Voltage	Adj В
Fourth Reset Voltage	1.8V, 1.5V, 1.2V, Adj, -Adj
Isupply	80 мкА
Minimum Reset Level	1 В
Number of Supplies	6
Рабочий диапазон температур	от -40 до 125 °C
Power Fail Warning	нет
Power Up/Down Reset	нет
Reset Voltage	5V, 3.3V
Second Reset Voltage	3.3V, 2.5V, 1.8V, 1.5V, 1.2V
Sixth Reset Voltage	Adj В
Third Reset Voltage	2.5V, 1.8V, 1.5V, 1.2V, Adj
Threshold Accuracy	1.5 %
Vs макс.	6 В
Watchdog Timer	да

Экологический статус

RoHS

Совместим

Другие варианты исполнения

LTC2938

Статьи

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4- and 6-Supply Monitors Feature ±1.5% Accuracy and Watchdog Timers for Rails Down to 1.2V &mdash LT Journal
PDF, 826 Кб, Файл опубликован: 27 окт 2010
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design features 4-and 6-Supply Monitors Feature В±1.5% Accuracy and
Watchdog Timers for Rails Down to 1.2V
A. Ng Two new power supply monitors from Linear Technology, the LTC2938 and LTC2939,
are specifically designed to monitor lower supply voltages (down to 1.2V) in multivoltage
systems. The LTC2938 and LTC2939 share the same architecture and differ only in
the number of voltages monitored. The LTC2938 is a 4-supply monitor and comes in
compact 12-pin MSOP and DFN packages. The LTC2939 monitors six supplies and
is offered in a 16-pin MSOP package. Both monitors have a tight threshold accuracy
of 1.5% over the operating temperature range, which eases the voltage headroom
requirements of circuits powered by the monitored supplies and is much tighter than
supply monitors from other manufacturers. Neither monitor requires external calibration
or trimming. Both parts are designed for systems with 5% power supply tolerance.
The watchdog circuit in these monitors includes a watchdog input (WDI)
and a watchdog output (WDO), which
facilitates microprocessor monitoring
and control. The WDO output is latched
low in the event of a watchdog timeout
and allows the microprocessor to distinguish between resets caused by a supply
undervoltage from those due to software
malfunction. Both devices feature reset
and watchdog timers that can be arbitrarily adjusted using external capacitors
for greater flexibility in system design. SINGLE PIN SELECTS FROM
16 POSSIBLE THRESHOLD …

Модельный ряд

Серия: LTC2939 (6)

LTC2939CMS#PBF LTC2939CMS#TRPBF LTC2939HMS#PBF LTC2939HMS#TRPBF LTC2939IMS#PBF LTC2939IMS#TRPBF

Классификация производителя

Monitor, Control and Protection > Supervisory Circuits > Quad or More Supply Monitors
Space & Harsh Environment > Extended Temperature Plastic (H & MP) > Extended Temperature (H & MP) System Monitor

Варианты написания:

LTC2939HMSPBF, LTC2939HMS PBF