LT4356MP-1
LT4356MP-2
RECOMMENDED FOR NEW DESIGNS
Surge Stopper
- Part Models
- 7
- 1ku List Price
- Starting From $8.84
Overview
- Stops High Voltage Surges
- Adjustable Output Clamp Voltage
- Overcurrent Protection
- Wide Operation Range: 4V to 80V
- Reverse Input Protection to –60V
- Low 7μA Shutdown Current, LT4356-1
- Adjustable Fault Timer
- Controls N-channel MOSFET
- Shutdown Pin Withstands –60V to 100V
- Fault Output Indication
- Guaranteed Operation –55°C to 125°C
- Auxiliary Amplifier for Level Detection Comparator or Linear Regulator Controller
- Available in 10-Pin MSOP or 16-Pin SO Packages
The LT4356 surge stopper protects loads from high voltage transients. It regulates the output during an overvoltage event, such as load dump in automobiles, by controlling the gate of an external N-channel MOSFET. The output is limited to a safe value thereby allowing the loads to continue functioning. The LT4356MP also monitors the voltage drop between the VCC and SNS pins to protect against overcurrent faults. An internal amplifier limits the current sense voltage to 50mV. In either fault condition, a timer is started inversely proportional to MOSFET stress. If the timer expires, the FLT pin pulls low to warn of an impending power-down. If the condition persists, the MOSFET is turned off. After a cooldown period, the GATE pin pulls up turning on the MOSFET again.
The auxiliary amplifier may be used as a voltage detection comparator or as a linear regulator controller driving an external PNP pass transistor.
Back-to-back FETs 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 for the LT4356-1 during shutdown. The LT4356-2 differs from the LT4356-1 during shutdown by reducing the quiescent current to 60μA and keeping alive the auxiliary amplifier for uses such as an undervoltage lockout or always-on regulator.
|
LT4356MP-1 |
LT4356MP-2 |
||
| Low Current Shutdown | 7uA | 60uA | 7uA |
| Aux Amp In Shutdown | OFF | Always Alive | OFF |
| Fault Retry | Retry | Retry | Latch Off |
| Packages | DFN-12, MS-10, SO-16 | DFN-12, SO-16 | DFN-12, MS-10, SO-16 |
| Temp Grades | C, I, H, MP | C, I, H, MP | C, I, H, MP |
Applications
- Automotive/Avionic Surge Protection
- Hot Swap/Live Insertion
- High Side Switch for Battery Powered Systems
Documentation
Data Sheet 1
Technical Articles 1
Product Selector Card 2
ADI has always placed the highest emphasis on delivering products that meet the maximum levels of quality and reliability. We achieve this by incorporating quality and reliability checks in every scope of product and process design, and in the manufacturing process as well. "Zero defects" for shipped products is always our goal. View our quality and reliability program and certifications for more information.
| Part Model | Pin/Package Drawing | Documentation | CAD Symbols, Footprints, and 3D Models |
|---|---|---|---|
| LT4356MPMS-1 | 10-Lead MSOP | ||
| LT4356MPMS-1#PBF | 10-Lead MSOP | ||
| LT4356MPMS-1#TRPBF | 10-Lead MSOP | ||
| LT4356MPS-1#PBF | 16-Lead SOIC (Narrow 0.15 Inch) | ||
| LT4356MPS-1#TRPBF | 16-Lead SOIC (Narrow 0.15 Inch) | ||
| LT4356MPS-2#PBF | 16-Lead SOIC (Narrow 0.15 Inch) | ||
| LT4356MPS-2#TRPBF | 16-Lead SOIC (Narrow 0.15 Inch) |
| Part Models | Product Lifecycle | PCN |
|---|---|---|
|
Oct 11, 2022 - 22_0244 Epoxy Change from Henkel 8290 to 8290A for MSOP Package |
||
| LT4356MPMS-1 | PRODUCTION | |
|
Feb 4, 2020 - 20_0130 Laser Top Mark Conversion for 10-Lead MSOP Packages Assembled in ADPG and UTAC |
||
| LT4356MPMS-1 | PRODUCTION | |
| LT4356MPMS-1#PBF | PRODUCTION | |
| LT4356MPMS-1#TRPBF | PRODUCTION | |
|
Jun 5, 2024 - 24_0003 Epoxy Change from Henkel 8290 to 8290A for MSOP Package (2) |
||
| LT4356MPMS-1#PBF | PRODUCTION | |
| LT4356MPMS-1#TRPBF | PRODUCTION | |
|
Oct 24, 2024 - 24_0246 Migrating Bottom Trace Code Marking to Top Side Laser Marking for SOIC_N Package |
||
| LT4356MPS-1#PBF | PRODUCTION | |
| LT4356MPS-1#TRPBF | PRODUCTION | |
| LT4356MPS-2#PBF | PRODUCTION | |
| LT4356MPS-2#TRPBF | PRODUCTION | |
|
Aug 6, 2022 - 22_0173 Laser Top Mark Conversion for SOICN14 and SOICN16 Packages Assembled on ADPG [PNG] |
||
| LT4356MPS-1#PBF | PRODUCTION | |
| LT4356MPS-1#TRPBF | PRODUCTION | |
| LT4356MPS-2#PBF | PRODUCTION | |
| LT4356MPS-2#TRPBF | PRODUCTION | |
|
Jun 4, 2025 - 25_0037 Carsem SnPb Packaging End of Life |
||
| LT4356MPMS-1 | PRODUCTION | |
|
Aug 16, 2021 - 20_0040 Discontinuation of Lead Finished Parts for MSOP Package. |
||
| LT4356MPMS-1 | PRODUCTION | |
This is the most up-to-date revision of the Data Sheet.
Software Resources
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Request a Driver/SoftwareHardware Ecosystem
| Parts | Product Life Cycle | Description |
|---|---|---|
|
LT4356-1 LT4356-2 |
RECOMMENDED FOR NEW DESIGNS | Surge Stopper |
|
LT4356-3 LT4356MP-3 |
RECOMMENDED FOR NEW DESIGNS | Surge Stopper with Fault Latchoff |
Tools & Simulations
LTspice 1
Models for the following parts are available in LTspice:
- LT4356-1
- LT4356-2
- LT4356-3
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.
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