LT4363

RECOMMENDED FOR NEW DESIGNS

High Voltage Surge Stopper with Current Limit

Data Sheet (Rev. C) Product Selection Table
Part Models
44
1ku List Price
Starting From $2.99
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Part Details

  • 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
LT4363
High Voltage Surge Stopper with Current Limit
LT4363 Typical Application Circuit LT4363 Typical Application Graph Product Package 1 Product Package 2 Product Package 3 Product Package 4 Product Package 5 Product Package 6
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Documentation

Data Sheet 1

Reliability Data 1

User Guide 3

Technical Articles 3

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Hardware Ecosystem

Parts Product Life Cycle Description
PowerPath, Ideal Diodes, and Load Switches 1
LTC4359
RECOMMENDED FOR NEW DESIGNS Ideal Diode Controller with Reverse Input Protection
Surge Stopper, Overvoltage, and Overcurrent Protection 1
LTC4367
RECOMMENDED FOR NEW DESIGNS 100V Overvoltage, Undervoltage and Reverse Supply Protection Controller
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Tools & Simulations

LTspice 2

Models for the following parts are available in LTspice:

  • LT4363-1
  • LT4363-2
LTspice

LTspice® is a powerful, fast and free simulation software, schematic capture and waveform viewer with enhancements and models for improving the simulation of analog circuits.

Evaluation Kits

eval board
schematic 1
schematic 2
schematic 3
schematic 4
schematic 5
DC2062A-B

LT4363IDE-2 Demo Board: 12V System ISO-7637-2 Surge Stopper, Auto-Retry Version

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Product Details

DC2062A-B: Demo Board for LT4363 High Voltage Surge Stopper with Current Limit.

eval board
schematic 6
schematic 7
schematic 8
schematic 9
schematic 10
DC2150A-C

28V, 5A MIL-STD-1275D Surge Stopper (Featuring LTC4366HTS8-2 and LT4363HS-2)

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Product Details

Demonstration circuit 2150A uses the LTC4366-2 and LT4363-2 surge stoppers to satisfy MIL-STD-1275D. This specification, created by the United States Department of Defense, sets down requirements of electrical systems powered from a military vehicle’s 28V power supply. DC2150A’s output voltage is limited to 44V when faced with MIL-STD-1275D’s onerous surge, spike, and ripple conditions. In most circumstances, satisfying MIL-STD-1275D is as simple as placing this circuit in front of a 44V tolerant device. The default version, DC2150A-C, provides a minimum of 4A to the output in all conditions except the ±7V ripple condition (14Vpeak-to-peak). During the ripple condition, DC2150A-C provides a minimum of 2.8A to the load. Exceeding 2.8A during the input ripple condition may cause DC2150A-C to timeout and shutoff in less than MIL-STD-1275D’s one minute ripple ride-through requirement.

eval board
schematic 11
schematic 12
schematic 13
schematic 14
schematic 15
DC1935A-A

LT4363-1 Demo Board: High Voltage Surge Stopper with Current Limit, Latch-Off Version

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Product Details

DC1935A-A: Demo Board for the LT4363 High Voltage Surge Stopper with Current Limit.


 


eval board
schematic 16
schematic 17
schematic 18
schematic 19
schematic 20
DC1935A-B

LT4363-2 Demo Board: High Voltage Surge Stopper with Current Limit, Auto-Retry Version

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Product Details

DC1935A-B: Demo Board for the LT4363 High Voltage Surge Stopper with Current Limit.


 


eval board
schematic 21
DC2062A-A

LT4363IDE-1 Demo Board: 12V System ISO-7637-2 Surge Stopper, Latch-Off Version

Buy Now View Details

Product Details

DC2062A-A: Demo Board for LT4363 High Voltage Surge Stopper with Current Limit.
DC2062A-B
LT4363IDE-2 Demo Board: 12V System ISO-7637-2 Surge Stopper, Auto-Retry Version
DC2062A-B Demo Board DC2062A-B Demo Board DC2062A-B Demo Board DC2062A-B Demo Board DC2062A-A - Schematic
DC2150A-C
28V, 5A MIL-STD-1275D Surge Stopper (Featuring LTC4366HTS8-2 and LT4363HS-2)
DC2150A-C Demo Board DC2150A-C Demo Board DC2150A-C Demo Board DC2150A-C Demo Board DC2150A - Schematic
DC1935A-A
LT4363-1 Demo Board: High Voltage Surge Stopper with Current Limit, Latch-Off Version
DC1935A-A Demo Board DC1935A-A Demo Board DC1935A-A Demo Board DC1935A-A Demo Board DC1935A-A - Schematic
DC1935A-B
LT4363-2 Demo Board: High Voltage Surge Stopper with Current Limit, Auto-Retry Version
DC1935A-B Demo Board DC1935A-B Demo Board DC1935A-B Demo Board DC1935A-B Demo Board DC1935A-A - Schematic
DC2062A-A
LT4363IDE-1 Demo Board: 12V System ISO-7637-2 Surge Stopper, Latch-Off Version
DC2062A-A - Schematic

Latest Discussions

22 Weeks Ago
RE: Floating the LT4363 for operation at 144Vdc
34 Weeks Ago
RE: SHTD# leads to much slower Gate discharging than specified
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