company blog about Mingjiada Supply ADI LT4356-1, LT4356-2 And LT4356-3 Surge Stopper IC

Shenzhen Mingjiada Electronics Co., Ltd. — Long-term supplier of the [ADI] LT4356 series surge suppressors/overvoltage protection controllers, covering the LT4356-1, LT4356-2 and LT4356-3 surge suppressor ICs. These devices provide protection against input surges, overvoltage and overcurrent by driving external N-channel MOSFETs, and are suitable for automotive, industrial, telecommunications and power supply input front-end applications. Mingjiada Electronics maintains stock of mainstream models and supports both small-batch samples and large-volume orders; backed by an efficient logistics system, we ensure rapid product delivery.

The LT4356 surge suppressor protects the load from high-voltage transients. It regulates the output by controlling an external N-channel MOSFET during overvoltage events (such as sudden drops in automotive load). The output is limited to a safe level, thereby allowing the load to continue operating normally. The LT4356 also monitors the voltage drop between the VCC and SNS pins to prevent overcurrent faults. An internal amplifier limits the current-sensing voltage to 50 mV.

The LT4356 can utilise back-to-back FETs in place of Schottky diodes to provide reverse input protection, thereby reducing voltage drop and power dissipation. The shutdown pin reduces the quiescent current of the LT4356-1 to less than 7 µA during shutdown. The LT4356-2 differs from the LT4356-1 in that, during shutdown, it reduces the quiescent current to 60 µA and keeps the auxiliary amplifier powered, allowing it to function as an under-voltage lockout or always-on regulator.

LT4356 Key Features:

High-voltage surge protection

Adjustable output clamping voltage

Overcurrent protection

Wide operating range: 4 V to 80 V

Reverse input protection up to –60 V

Low shutdown current of 7 µA (LT4356-1)

Auxiliary amplifier suitable for level-detection comparators or linear regulator controllers (LT4356-2)

Adjustable fault timer

Controls N-channel MOSFETs

Shutdown pin withstands voltages from –60 V to 100 V

Fault output indication

Guaranteed operating temperature of 125°C

Available in (4 mm × 3 mm) 12-pin DFN, 10-pin MSOP or 16-pin SO packages

Models supplied by Mingjiada Electronics:

LT4356MPMS-1

LT4356MPS-1

LT4356MPS-2

LT4356CDE-3

LT4356CMS-3

LT4356CS-3

LT4356HDE-3

LT4356HMS-3

LT4356HS-3

LT4356IDE-3

LT4356IMS-3

LT4356IS-3

LT4356MPMS-3

LT4356MPS-3

The LT4356 series of surge suppressors is suitable for surge protection in automotive and avionics equipment, as well as for applications such as heat exchange, live insertion and high-side switching in battery-powered systems.

Mingjiada Electronics supplies the ADI LT4356 series of surge suppressors, covering the LT4356-1, LT4356-2 and LT4356-3, and offers product selection and quotation support for front-end protection designs in automotive electronics, industrial control, telecommunications power supplies and battery-powered equipment. For further product details regarding the LT4356 or to enquire about sample prices, please visit the Mingjiada Electronics website (https://www.integrated-ic.com/) for more supply information.