DC1935A-B Surge Stopper, Overvoltage, and Overcurrent Protection by Analog Devices

Status: Production
Series: LT4363
RoHS: Compliant
View Datasheet 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.

Prices starting from US$67.80


Distributor Starting From Stock
Logo for Analog Devices Analog Devices US$70.62
175
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Logo for Farnell Farnell US$70.38
7
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Logo for Newark Electronics Newark Electronics US$75.67
7
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Logo for element14 element14 US$75.23
7
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Logo for Chip One Stop Chip One Stop US$70.30
5
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Logo for Richardson RFPD Richardson RFPD US$67.80
-
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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

LT4363-2 Demo Board: High Volt | Analog Devices
DEMONSTRATION BOARD, SURGE STOPPER | Farnell
Demonstration Board, Surge Stopper | Newark Electronics
SEMICONDUCTOR DESIGNER KIT | Richardson RFPD


DC1935A-B Power Management Development Kits by Linear Technology

VOLT SURGE STOPPER EVALUATION BOARD

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

Specifications

Silicon Manufacturer Linear Technology
Silicon Core Number LT4363-2
Kit Application Type Power Management
Application Sub Type Surge Stopper
Core Architecture -
Core Sub-Architecture -
Silicon Family Name -
Kit Contents Demonstration Board LT4363-2
Product Range -
SVHC No SVHC (07-Jul-2017)
Features Adjustable Fault Timer High Voltage Surge Stopper with Current Limit Fast OC Limit

Frequently Asked Questions

Where can I find additional details, specifications and documents for a DC1935A-B?

Additional datasheets, footprints and schematics for DC1935A-B are listed on our Part Details page. You can also find images and similar parts to DC1935A-B on this page.

What pricing and inventory information can I view?

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What category does DC1935A-B fall under?

The DC1935A-B is listed under Surge Stopper, Overvoltage, and Overcurrent Protection.

Can I view similar or alternative parts?

You can view similar parts to DC1935A-B when available in the Surge Stopper, Overvoltage, and Overcurrent Protection range under the specifications section at the bottom of the details page.

Who can I contact for technical support of the product?

Submit any questions directly to the customer support team of the distributor listing the product. For the DC1935A-B you can contact the distributor directly for product support, shipping queries etc.

Is the DC1935A-B RoHS compliant?

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

Which authorised distributors for DC1935A-B have stock available?

Authorised distributors including Analog Devices, Farnell, Newark Electronics, element14 and Chip One Stop have stock available or on a lead time for DC1935A-B.

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