LINEAR 2PB_surge stoppers Owner's Manual & User Guide
Summary
Engineered for demanding industrial, automotive, and avionic environments, these advanced surge stoppers provide reliable overvoltage protection against severe power transients. The documentation details sophisticated current-limited circuits (LT4363) and ultra-high voltage floating topologies (LTC4366). Key features include user-adjustable clamping voltages, UV/OV monitoring, and fault timing that ensures system safety during extreme electrical events. Ideal for engineers requiring maximum reliability where system uptime is critical.
Page 1 Text Content
Surge Stoppers LT4363 High Voltage Surge Stopper with Current Limit
In harsh industrial, automotive and avionic environments, systems must continue operating reliably through severe overvoltage events. The LT®4363 builds on the first-generation LT4356 by extending overvoltage protection capabilities beyond 100V, without sacrificing overcurrent protection. Additional features include OV/UV monitoring, fast overcurrent limit and extended cooldown period.
4V TO 80V 250V INPUT SURGE
GATE OUTSNS 100V/DIV
ADJUSTABLE
VCC FB
CLAMP
LT4363
43V CLAMP
VOUT 28V 20V/DIV
TIMER
100ms/DIV
LTC4366 Floating Surge Stopper
The LTC®4366’s adjustable floating topology is capable of extremely high voltages; the operational upper voltage is limited only by MOSFET ratings. During high voltage transient events, the LTC4366 clamps the output to a user-defined voltage, while the fault timer ensures safe shutdown of the MOSFET if the fault persists.
9V TO >500V
800V INPUT SURGE
VIN 200V/DIV
RUGGED FLOATING
TOPOLOGY ADJUSTABLE CLAMP
200V CLAMP
LTC4366 VOUT
100V/DIV
RBIAS
20ms/DIV
Part Operating Reverse Overcurrent Number Range VIN Max Protection Protection Comments Package Options LT4356 4V to 80V 100V –60V Yes, <100V Surge Stopper with Auxiliary Amplifier 4mm × 3mm DFN, MSOP-10, SO-16 LT4363 4V to 80V 100V –60V Yes, >100V High Voltage Surge Stopper with Current Limit 4mm × 3mm DFN, MSOP-12, SO-16 LTC4364 4V to 80V 100V –40V Yes, >100V Surge Stopper with Ideal Diode 4mm × 3mm DFN, MSOP-16, SO-16 LTC4365 2.5V to 34V 60V –40V No UV, OV and Reverse Supply Protection Controller 3mm × 2mm DFN, TSOT-8 LTC4366 9V to >500V Unlimited Yes No Floating Surge Stopper 3mm × 2mm DFN, TSOT-8
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.
Page Summary Contents For LINEAR 2PB_surge stoppers Owner's Manual & User Guide
Manual Details
| Brand | Linear |
|---|---|
| Pages | 2 |
| File Size | 938.91 KB |
| Published | May 29, 2026 |
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Frequently Asked Questions
What is the voltage range for the LTC4366?
It handles inputs from 9V up to over 500V.
Does the LT4363 offer extended protection features compared to its predecessor (LT4356)?
Yes, it extends overvoltage protection beyond 100V and includes OV/UV monitoring and a faster overcurrent limit.
Which device protects against reversed battery voltage?
The LTC4364 combines ideal diode function and reverse output protection with the LT4363.
What is the operating temperature range for low-power controllers like the LTC4365?
They support operation from –40°C to 125°C.