LT4363HMS-2#PBF Surge Stopper, Overvoltage, and Overcurrent Protection by Analog Devices

Status: Production
Series: LT4363
RoHS: Compliant
Download Datasheet Visit Manufacturer Site View Pricing & Stock

The LT4363 surge stopper protects loads from high voltage transients. It regulates the output during an overvoltage event, such as load dump in vehicles, by controlling the gate of an external N-channel MOSFET. The output is limited to a safe value allowing the loads to continue functioning. The LT4363 also monitors the voltage drop between the SNS and OUT pins to protect against overcurrent faults. An internal amplifier limits the voltage across the current sense resistor to 50mV. In either fault condition, a timer is started inversely proportional to MOSFET stress. Before the timer expires, the FLT pin pulls low to warn of an impending power down. If the condition persists, the MOSFET is turned off. The LT4363-1 remains off until reset whereas the LT4363-2 restarts after a cool down period.Two precision comparators can monitor the input supply for overvoltage (OV) and undervoltage (UV) conditions. When the potential is below the UV threshold, the external MOSFET is kept off. If the input supply voltage is above the OV threshold, the MOSFET is not allowed to turn back on. Back-to-back MOSFETs can be used in lieu of a Schottky diode for reverse input protection, reducing voltage drop and power loss. A shutdown pin reduces the quiescent current to less than 7μA during shutdown.

Where to Buy

Prices starting from US$4.45

Distributor Stock
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Analog Devices
from US$4.45
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Chip One Stop
from US$7.05
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Newark Electronics
from US$7.25
87
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element14
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Farnell
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Richardson RFPD
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Features

Withstands Surges Over 80V with VCC Clamp
Wide Operating Voltage Range: 4V to 80V
Adjustable Output Clamp Voltage
Fast Overcurrent Limit: Less Than 5μs
Reverse Input Protection to –60V
Adjustable UV/OV Comparator Thresholds
Low 7μA Shutdown Current
Shutdown Pin Withstands –60V to 100V
Adjustable Fault Timer
Controls N-Channel MOSFET
Less Than 1% Retry Duty Cycle During Faults, LT4363-2
Available in 12-Pin (4mm × 3mm) DFN, 12-Pin MSOP or 16-Pin SO Packages

Alternative Descriptions

Hi V Surge Stopper w/ C Lim | Analog Devices
Hot-Swap Ctrl, -40 To 125Deg C, Msop-12 | Newark Electronics
HOT-SWAP CTRL, -40 TO 125DEG C, MSOP-12 | element14
POWER MANAGEMENT IC | Richardson RFPD


LT4363HMS-2#PBF Semiconductors - ICs by Linear Technology

IC HOT SWAP CTRLR 4V TO 80V MSOP-12

Status: Unknown
Series: -
RoHS: Unknown
Download Datasheet Visit Manufacturer Site View Pricing & Stock

Specifications

Controller Applications Automotive / Avionic Surge Protection Hot Swap / Live Insertion Battery Powered Systems
Input Voltage -
Supply Voltage Min 4V
Supply Voltage Max 80V
Controller IC Case Style MSOP
No. of Pins 12Pins
Operating Temperature Min -40°C
Operating Temperature Max 125°C
Product Range -
RoHS Phthalates Compliant Yes
MSL MSL 1 - Unlimited
SVHC No SVHC (15-Jan-2018)
Internal Switch Yes

Frequently Asked Questions

Where can I find additional details, specifications and documents for a LT4363HMS-2#PBF?

Additional datasheets, footprints and schematics for LT4363HMS-2#PBF are listed on our Part Details page. You can also find images and similar parts to LT4363HMS-2#PBF on this page.

What pricing and inventory information can I view?

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What category does LT4363HMS-2#PBF fall under?

The LT4363HMS-2#PBF is listed under Surge Stopper, Overvoltage, and Overcurrent Protection.

Can I view similar or alternative parts?

You can view similar parts to LT4363HMS-2#PBF when available in the Surge Stopper, Overvoltage, and Overcurrent Protection range under the specifications section at the bottom of the details page.

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Is the LT4363HMS-2#PBF RoHS compliant?

Yes. This part has been flagged as RoHS Compliant by Analog Devices.

Which authorised distributors for LT4363HMS-2#PBF have stock available?

Authorised distributors including Analog Devices, Chip One Stop, Newark Electronics, element14 and Farnell have stock available or on a lead time for LT4363HMS-2#PBF.

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