Серия защитных ИС LTC4368

Общие характеристики

Раздел Защитная ИС
Корпус MSOP10
Кол-во защищаемых линий (каналов)

Документация на серию LTC4368

LTC4368 100V UV/OV and Reverse Protection Controller with Bidirectional Circuit Breaker FEATURES n n n n n n n n n n n n n DESCRIPTION Wide Operating Voltage Range: 2.5V to 60V Overvoltage Protection to 100V Reverse Supply Protection to –40V Bidirectional Electronic Circuit Breaker: n +50mV Forward Sense Threshold n –50mV Reverse (LTC4368-1) n –3mV Reverse (LTC4368-2) Adjustable ±1.5% Undervoltage and Overvoltage Thresholds Low Operating Current: 80µA Low Shutdown Current: 5µA Controls Back-to-Back N-Channel MOSFETs Blocks 50Hz and 60Hz AC Power Hot Swappable Supply Input Pin-Selectable Overcurrent Auto-Retry Timer or Latchoff 10-Pin MSOP and 3mm × 3mm DFN Packages AEC-Q100 Qualified for Automotive Applications APPLICATIONS n n n n Reverse Battery Protection Portable Instrumentation Automotive and Industrial Surge Protection Energy Storage Systems The LTC®4368 protects applications from power supply voltages that may be too high, too low, or even negative and from overcurrent faults in both forward and reverse directions. The LTC4368 controls the gate voltage of a pair of external N-channel MOSFETs to ensure that the load is connected to the input supply only when there are no voltage or current faults. Two comparator inputs allow configuration of the overvoltage (OV) and undervoltage (UV) set points using an external resistive divider. A current sense resistor sets the forward and reverse circuit breaker current thresholds. After a forward current fault, the LTC4368 will either latchoff power, or retry after a user adjustable delay. After a reverse current fault, the LTC4368 waits for the output to fall 100mV below the input to reconnect power to the load. The LTC4368 has a 32ms turn-on delay that debounces live supply input connections and blocks 50Hz and 60Hz AC power. UV/OV faults also trigger the 32ms recovery delay before the external MOSFETs are turned back on. All registered trademarks and trademarks are the property of their respective owners. TYPICAL APPLICATION 24V Application with 10A Circuit Breaker +50mV VIN 24V –40V TO 100V SiR870 SiR870 0.005Ω INRUSH CONTROL 22k VOUT 7V TO 36V –3mV + Load Protected from Reverse and Overvoltage at VIN IOUT –0.6A TO 10A 100µF +70V 20V/DIV OV = 36V UV = 7V 3.3nF VALID WINDOW VIN GATE SENSE VOUT GND 464k UV LTC4368-2 121k OV 29.4k VOUT VOUT FAULT SHDN 1500k OV = 36V UV = 7V VIN RETRY GND 1200ms COOLDOWN AFTER FORWARD OC FAULT –40V 20V/DIV 0.22µF VIN 200ms/DIV 4368 TA01b 4368 TA01a Rev. C Document Feedback For more information www.analog.com 1 PDF
Документация на серию LTC4368 

LTC4368 (Rev C) 100V UV/OV and Reverse Protection Controller with Bidirectional Circuit Breaker

Дата модификации: 30.04.2021

Размер: 1.71 Мб

22 стр.

    Товары серии LTC4368

    Наименование i Упаковка T раб
    LTC4368HMS-1#WPBF (AD)
    LTC4368HMS-2#PBF (AD)
    LTC4368HMS-2#PBF (AD-LTC)
    9 шт
    LTC4368HMS-2#WPBF (AD)
    LTC4368HMS-2#WTRPBF (AD)
    LTC4368IMS-1 (AD)
    LTC4368IMS-1#PBF (AD)
    LTC4368IMS-1#PBF (AD-LTC)
    1 шт
    LTC4368IMS-1#TRPBF (AD)
    LTC4368IMS-2 (AD) в линейках 50 шт
    LTC4368IMS1 (AD)
    LTC4368IMS2 (AD)

    LTC4368 публикации

    12 октября 2021

    Компоненты Analog Devices для защиты от перенапряжений в цепях питания

    Александр Русу (г. Одесса) Поломка оборудования из–за перенапряжений в силовых цепях или неправильного подключения источника питания часто обходится слишком дорого, а активные ограничители напряжения требуют дополнительных затрат и места на... ...читать