B1161UA4LTP

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B1161UA4LTP application field and working principle - Mixed Technology

TVS (Transient Voltage Suppressor) device technology is a unique type of mixed technology that is used in different applications such as automotive, industrial, medical or consumer electronics. The B1161UA4LTP is a TVS device specifically designed for transient voltage protection applications. It is a combination of several components such as a TVS diode, a FET, and an opto-isolator among others, and it is integrated in one package. This device enables the protection of components in a system from high voltage transients, while its small size allows it to be used in tightly spaced and energy-limited applications.

Working Principle

B1161UA4LTP operates by providing fast latching protection against high voltage transients. It offers a unique active FET design with integrated opto-isolation for resolving conflicting system level requirements. It is designed to work as both a surge protector and an active clamp using the FET to enable the active FET mode. It has two FET’s – one working in forward direction and another in reverse direction. When a surge of electrical current enters, it immediately activates the FET, which in turn initiates the latching mechanism. The latching mechanism will then latch the FET and keep it activated until the surge of current is dropped.

In the meantime, the opto-isolator is activated to control the timing of the latching. Once the surge is drained, the FET resets and the opto-isolator is deactivated. During the whole process, the device is able to sense the presence of overvoltage and works to protect the underlying components by shunting the surge from the main circuit.

Application Field

The B1161UA4LTP is an ideal choice in applications such as automotive, industrial, medical, and consumer electronics. It can be integrated into a wide range of powered systems such as automotive systems, where the device offers efficient protection for both the circuit and the system. This is especially useful in automotive systems where sudden voltage spikes occur and can easily damage parts such as ECU or sensors.

Furthermore, the device can be used to protect sensors in medical devices from electrical noise, helping to keep the device operation more reliable and accurate. Additionally, it can also be used in consumer electronics such as computers, cell phones or televisions for managing spikes or surges in voltage.

Conclusion

In conclusion, the B1161UA4LTP is a unique type of device that combines several components in one package and is designed to provide fast latching protection against high voltage transients. It offers an active FET design with integrated opto-isolation and is used in a variety of applications such as automotive, industrial, medical, and consumer electronics. This type of mixed technology is a reliable solution for protecting components in a system from damaging electrical noise.

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