LTC4364HDE-2#PBF

LTC4364-1/LTC4364-2 Surge Stopper with Ideal Diode FEATURES n n n n n n n n n n n DESCRIPTION Wide Operating Voltage Range: 4V to 80V Withstands Surges Over 80V with VCC Clamp Adjustable Output Clamp Voltage Ideal Diode Controller Holds Up Output Voltage During Input Brownouts Reverse Input Protection to –40V Reverse Output Protection to –20V Overcurrent Protection Low 10μA Shutdown Current ...
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Технические характеристики

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Корпус DFN14
Кол-во защищаемых линий (каналов)
Примечание Surge Stopper with Ideal Diode
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LTC4364-1/LTC4364-2 Surge Stopper with Ideal Diode FEATURES n n n n n n n n n n n DESCRIPTION Wide Operating Voltage Range: 4V to 80V Withstands Surges Over 80V with VCC Clamp Adjustable Output Clamp Voltage Ideal Diode Controller Holds Up Output Voltage During Input Brownouts Reverse Input Protection to –40V Reverse Output Protection to –20V Overcurrent Protection Low 10μA Shutdown Current at 12V Adjustable Fault Timer 0.1% Retry Duty Cycle During Faults (LTC4364-2) Available in 4mm × 3mm 14-Lead DFN, 16-Lead MSOP, and 16-Lead SO Packages The LTC®4364 surge stopper with ideal diode controller protects loads from high voltage transients. It limits and regulates the output during an overvoltage event, such as load dump in automobiles, by controlling the voltage drop across an external N-channel MOSFET pass device. The LTC4364 also includes a timed, current limited circuit breaker. In a fault condition, an adjustable fault timer must expire before the pass device is turned off. The LTC4364-1 latches off the pass device while the LTC4364-2 automatically restarts after a delay. The LTC4364 precisely monitors the input supply for overvoltage (OV) and undervoltage (UV) conditions. The external MOSFET is held off in undervoltage and auto-retry is disabled in overvoltage. APPLICATIONS n n n n An integrated ideal diode controller drives a second MOSFET to replace a Schottky diode for reverse input protection and output voltage holdup. The LTC4364 controls the forward voltage drop across the MOSFET and minimizes reverse current transients upon power source failure, brownout or input short. Automotive/Avionic Surge Protection Hot Swap/Live Insertion Redundant Supply ORing Output Port Protection L, LT, LTC, LTM, Linear Technology and the Linear logo are registered trademarks of Linear Technology Corporation. All other trademarks are the property of their respective owners. TYPICAL APPLICATION Overvoltage Protector Regulates Output at 27V During Input Transient 4A, 12V Overvoltage Output Regulator with Ideal Diode Withstands 200V 1ms Transient at VIN FDB33N25 VIN 12V 2.2k 6.8nF VCC SHDN OV 60V 10mΩ + 383k CMZ5945B 68V UV 6V FDB3682 22µF VOUT CLAMPED AT 27V 10Ω OUT FB ENABLE FAULT FLT TMR 27V CLAMP (ADJUSTABLE) 50ms/DIV 102k ENOUT OV GND 12V 4364 TA01b Ideal Diode Holds Up Output During Input Short 4.99k LTC4364 90.9k CTMR = 6.8µF ILOAD = 0.5A VIN 20V/DIV VOUT 20V/DIV 12V HGATE SOURCE DGATE SENSE UV 10k 92V INPUT SURGE 12V VIN 10V/DIV INPUT SHORTED TO GND CLOAD = 6300µF ILOAD = 0.5A 436412 TA01a 0.22µF VOUT 12V 10V/DIV OUTPUT HELD UP 1ms/DIV 4364 TA01c 436412f 1 PDF
Документация на серию LTC4364 

LTC4364-1/LTC4364-2 - Surge Stopper with Ideal Diode |1029|1142|1003|1144|1079|

Дата модификации: 14.07.2021

Размер: 306.5 Кб

24 стр.

    Публикации 1

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