TBU-PL060-200-WH Circuit Protection

Surge Suppression ICs are commonly used today to protect devices from spikes in current and voltage. The TBU-PL060-200-WH is an IC designed to address 1000W peak pulse power, peak pulse currents up to 40A, and peak pulse voltages of up to 200V. It can also be used in applications ranging from 5V to 200V.

The application field of TBU-PL060-200-WH includes automotive, industrial, communications, consumer and security, and medical applications. In automotive applications, it can be used to protect electronic control units (ECUs) and telematics modules from power surges. It can also be used to protect air-bags, pyrotechnic devices, and power seat modules from transients. In industrial applications, it can be used to protect h-bridge circuits, motor drives, and solenoid valves from overvoltage conditions. In communications applications, it can be used to protect radio frequency (RF), cable television (CATV), and satellite receivers from transients. In consumer applications, it can be used to protect precious devices like televisions, washing machines, and household appliances from abrupt electrical changes. Additionally, in security and medical applications, it can be used to protect CCTV cameras, fire alarms, medical imaging, and medical equipment.

The working principle of TBU-PL060-200-WH is based on zero-voltage switching (ZVS) using two Power MOSFETs and one controllable power diode. The two Power MOSFETs and the controllable diode are connected in series and they form a ZVS bridge-controlled switch. The transistors and diode of the ZVS bridge are controlled by the integrated control circuit. When the supply voltage rises above a certain threshold, the control circuit activates the switch and the current is diverted to the conductive junction of the diode. This process dissipates nearly all of the overvoltage energy and provides protection to the connected device.

When a surge occurs, the ZVS circuit diverts the voltage spike to the diode, which limits the voltage across the device connected to the TBU-PL060-200-WH. The IC then absorbs the excess energy from the surge and regulates the voltage of the power line, thus protecting the device. The IC also allows for adjustable clamping voltage, adjustable surge current, and adjustable rate of rise of leakage current, as well as other adjustable parameters.

The TBU-PL060-200-WH is an ideal solution for protecting sensitive electronics from voltage transients. With its adjustable parameters and robust construction, the TBU-PL060-200-WH provides reliable surge suppression performance for a wide range of applications.