Datasheet Linear Technology LTC2938CMS#PBF — Даташит

Производитель	Linear Technology
Серия	LTC2938
Модель	LTC2938CMS#PBF

Конфигурируемые мониторы с четырьмя источниками питания и сторожевым таймером

Datasheets

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PDF, 259 Кб, Файл закачен: 25 окт 2017

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Цены

Купить LTC2938CMS#PBF на РадиоЛоцман.Цены — от 86 до 1 394 ₽ 24 предложений от 16 поставщиков Устройства Мониторинга и Контроля
727GS Весь мир	LTC2938CMS#TRPBF Analog Devices	86 ₽
IC Home Весь мир	LTC2938CMS#TRPBF Analog Devices	283 ₽
ЭлектроПласт- Екатеринбург Россия	LTC2938CMS#TRPBF Linear Technology	по запросу
Augswan Весь мир	LTC2938CMS#TRPBF Analog Devices	по запросу

Корпус / Упаковка / Маркировка

Корпус	MS-12
Код корпуса	MS
Индекс корпуса	05-08-1668

Параметры

Экспортный контроль	нет
Основные особенности	Supervisor
Fourth Reset Voltage	1.8V, 1.5V, 1.2V, Adj, -Adj
Isupply	80 мкА
Minimum Reset Level	1 В
Number of Supplies	4
Рабочий диапазон температур	от 0 до 70 °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
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

LTC2939

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: LTC2938 (12)

LTC2938CDE#PBF LTC2938CDE#TRPBF LTC2938CMS#PBF LTC2938CMS#TRPBF LTC2938HDE#PBF LTC2938HDE#TRPBF LTC2938HMS#PBF LTC2938HMS#TRPBF LTC2938IDE#PBF LTC2938IDE#TRPBF LTC2938IMS#PBF LTC2938IMS#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:

LTC2938CMSPBF, LTC2938CMS PBF