LT4363CMS-1#PBF Surge Stopper, Overvoltage, and Overcurrent Protection by Analog Devices

Status: Production
Series: LT4363
RoHS: Compliant
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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.

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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


LT4363CMS-1#PBF Semiconductors - ICs by Linear Technology

SURGE STOPPER MANUAL RESET MSOP-12

Status: Unknown
Series: -
RoHS: Unknown
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Specifications

Controller Applications Automotive / Avionic Surge Protection Battery Powered Systems Hot Swap / Live Insertion
Input Voltage 12V
Supply Voltage Min 4V
Supply Voltage Max 80V
Controller IC Case Style MSOP
No. of Pins 12Pins
Operating Temperature Min 0°C
Operating Temperature Max 70°C
Product Range -
RoHS Phthalates Compliant Yes
MSL MSL 1 - Unlimited
SVHC No SVHC (15-Jan-2018)
Internal Switch Yes
Operating Temperature Range 0°C to +70°C
Supply Voltage Range 4V to 80V

Frequently Asked Questions

Where can I find additional details, specifications and documents for a LT4363CMS-1#PBF?

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What category does LT4363CMS-1#PBF fall under?

The LT4363CMS-1#PBF is listed under Surge Stopper, Overvoltage, and Overcurrent Protection.

Can I view similar or alternative parts?

You can view similar parts to LT4363CMS-1#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 LT4363CMS-1#PBF RoHS compliant?

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

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