LT4356CS-1#TRPBF Analog Devices Integrated Circuit (Small Outline Packages) In Stock
The LT4356CS-1#TRPBF is a single-channel surge stopper and input fault protection controller from Analog Devices in a 16-pin SOIC package. It clamps high-voltage transients and controls an external MOSFET to protect downstream circuits from supply surges exceeding 60V. Features adjustable threshold, SHDN pin, and is ideal for industrial and automotive power line protection.
- Manufacturer
- Analog Devices
- Package
- Small Outline Packages
- Pin Count
- 16
- Lifecycle
- ACTIVE
- Datasheet
- LT4356CS-1#TRPBF Datasheet PDF
- Category
- Integrated Circuit
- Price
- From $2.7600(MOQ 19)
- Temp Range
- ?°C to 70.0°C
- RoHS
- Compliant
- Lead Time
- 3–7 business days
- Shipping
- DHL Express · Worldwide
Key Features
- Clamps supply line surges up to 60V to protect sensitive downstream circuits from transient damage
- Adjustable overvoltage and undervoltage thresholds via external resistors for flexible protection windows
- Controls external N-channel MOSFET to enable high-current protection beyond IC-internal limits
- SHDN pin allows system-controlled enable/disable of the protection function
- Single-channel 16-pin SOIC package enables easy integration in power entry protection designs
Applications
The LT4356CS-1#TRPBF protects industrial equipment power inputs from load-dump and surge transients on 12V to 48V bus systems, preventing damage to downstream voltage regulators and digital circuitry. It is used in automotive ECUs and telematics units to clamp ISO 7637 load-dump transients that can exceed 60V on the vehicle battery bus. The adjustable threshold and external MOSFET control also make it suitable for server and telecom equipment power conditioning, where supply fault detection and automatic recovery are required.
Specifications
| Pbfree Code | No |
| Manufacturer Package Code | 05-08-1610 (S16) |
| YTEOL | 8.5 |
| Additional Feature | SHDN |
| Adjustable Threshold | YES |
| Analog IC - Other Type | INPUT FAULT PROTECTION CONTROLLER |
| JESD-30 Code | R-PDSO-G16 |
| JESD-609 Code | e3 |
| Number of Channels | 1 |
| Number of Functions | 1 |
| Package Body Material | PLASTIC/EPOXY |
| Package Equivalence Code | SOP16,.25 |
| Package Shape | RECTANGULAR |
| Package Style | SMALL OUTLINE |
| Peak Reflow Temperature (Cel) | 260 |
| Qualification Status | Not Qualified |
| Supply Current-Max (Isup) | 0.03mA |
| Supply Voltage-Max (Vsup) | 80V |
| Supply Voltage-Min (Vsup) | 4V |
| Supply Voltage-Nom (Vsup) | 12V |
| Surface Mount | YES |
| Technology | CMOS |
| Temperature Grade | COMMERCIAL |
| Terminal Finish | Matte Tin (Sn) - annealed |
| Terminal Form | GULL WING |
| Terminal Pitch | 1.27mm |
| Terminal Position | DUAL |
| Threshold Voltage-Nom | VSNS:0.05V |
| Time@Peak Reflow Temperature-Max (s) | 30 |
| Package | Small Outline Packages |
Compliance & Regulatory
| RoHS Status | Compliant |
| Lead-Free | Yes (Pb-Free) |
| Moisture Sensitivity Level | MSL 1 |
| ECCN | EAR99 |
| HTS Code | 8542.39.00.01 |
| Country of Origin | Malaysia |
Alternate & Equivalent Parts
No known alternates. Submit an RFQ and our team can suggest alternatives.
Frequently Asked Questions
What voltage surges can the LT4356CS-1#TRPBF protect against in automotive systems?
The LT4356CS-1#TRPBF can clamp and protect against surge transients up to 60V, which covers ISO 7637 automotive load-dump events on 12V and 24V vehicle battery buses that can produce transient spikes of 40V to 60V lasting several hundred milliseconds. By controlling an external N-channel MOSFET, it limits current delivery to the load during the surge event and resumes normal operation after the transient subsides.
How does the adjustable threshold feature of the LT4356CS-1#TRPBF work in practice?
The LT4356CS-1#TRPBF uses external resistor dividers connected to the OVLO and UVLO threshold pins to set independent overvoltage lockout and undervoltage lockout trip points. For example, on a 12V bus, a designer can set OVLO to trip at 16V and UVLO at 8V using a simple 2-resistor voltage divider, ensuring the load is disconnected both during surges and during undervoltage brownout conditions without any firmware involvement.
What type of MOSFET is required with the LT4356CS-1#TRPBF and what current levels can it support?
The LT4356CS-1#TRPBF drives an external N-channel MOSFET in a high-side configuration using its internal charge pump gate drive. By selecting an appropriate MOSFET with RDS(on) below 10mΩ and continuous drain current rating of 20A to 50A, the system can protect high-current loads at supply currents exceeding the IC's own 1A internal limit, making it scalable for load currents up to tens of amperes.
How does the SHDN pin on the LT4356CS-1#TRPBF enable system-level power sequencing?
The SHDN pin on the LT4356CS-1#TRPBF accepts a logic-level signal that disables the gate drive to the external MOSFET when pulled low, completely disconnecting the load from the supply. This allows a microcontroller or sequencing logic to implement power-on sequencing across multiple rails, emergency shutdown during fault detection, or controlled power cycling of field-replaceable modules on a shared 12V or 24V backplane.
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About Analog Devices
Analog Devices (ADI) is a global leader in high-performance analog, mixed-signal, and digital signal processing integrated circuits used in virtually all types of electronic equipment.
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| Qty. | Unit Price | Ext. Price |
|---|---|---|
| 19+ | $3.6600 | $69.54 |
| 1000+ | $2.7600 | $2760.00 |
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