LoveChip

Recently, Vishay Intertechnology, Inc. (NYSE: VSH) announced the launch of the new 40 V TrenchFET Gen IV n-channel power MOSFET in PowerPAK 10x12 package, the SiJK140E, which has excellent on-resistance and can provide higher efficiency and power density for industrial applications. Compared with competitive devices with the same footprint, the Vishay Siliconix SiJK140E has a 32% lower on-resistance and 58% lower on-resistance than a 40 V MOSFET in a TO-263-7L package. The recently released device has a typical on-resistance as low as 0.34 m at 10 V, minimizing power losses caused by conduction, thereby improving efficiency, while improving thermal performance through a typical RthJC as low as 0.21 °C/W. The SiJK140E allows designers to achieve the same low on-resistance using one device instead of two devices in parallel, which improves reliability and extends mean time between failures (MTBF). The MOSFET uses a bond-wireless (BWL) design to minimize parasitic inductance while maximi...

 Introduction When working with high-voltage or high-current systems, it is often necessary to isolate the control circuit from the load circuit to ensure safety and reliability. Optocouplers (or optocoupling devices) serve as an excellent solution for electrical isolation, enabling you to control high-power devices while protecting sensitive electronics from voltage spikes, noise, or ground loops. One such optocoupler, the TLP3120, is a powerful component used for driving relays, controlling motors, or switching AC loads with the benefit of electrical isolation. The TLP3120 is a high-speed photorelay that can handle switching operations up to 1A of load current and 60V of voltage, making it ideal for controlling 24V relays or other medium-power loads. In this DIY project, we will design and build a 24V relay driver circuit using the TLP3120 optocoupler. The circuit will allow you to control a 24V relay with a low-voltage signal (e.g., from a microcontroller or a control switch), p...