Infineon Technologies AG is introducing the CoolGaN bidirectional switch (BDS) 650 V G5, a gallium nitride (GaN) switch capable of actively blocking voltage and current in both directions. Featuring a common-drain design and a double-gate structure, it leverages Infineon’s robust gate injection transistor (GIT) technology to deliver a monolithic bidirectional switch, enabled by Infineon’s CoolGaN […]
Switches
Reference designs support 800 V automotive applications with 17 00V SiC switching
A series of new reference designs featuring a 1700 V-rated silicon carbide (SiC) integrated flyback switcher IC for use in electric vehicles operating at 800 V has been developed. These designs address multiple auxiliary power requirements, including DC-DC bus conversion, emergency power for inverters, battery management systems, and other auxiliary loads. Output power levels range […]
Silicon carbide JFETs feature 2.3 mΩ resistance for 1200 V applications
Infineon Technologies AG is expanding its silicon carbide (SiC) portfolio with the new CoolSiC JFET product family. The new devices deliver minimized conduction losses, solid turn-off capability, and high robustness, making them ideal for advanced solid-state protection and distribution. With robust short-circuit capability, thermal stability in linear mode, and precise overvoltage control, CoolSiC JFETs enable […]
48 V switches feature ±5% current sense accuracy
As vehicle architectures transition to hybrid and electric models, conventional battery systems are increasingly being supplemented or replaced by 48 V power sources. This shift is expected to become the new standard for future electric vehicles, as 12 V and 24 V power net systems reach their limits. 48 V systems enable advanced features, enhance […]
FAQ on high-side versus low-side load switching: part 2
The difference between high-side and low-side power switching is not apparent to many new designers but is a critical aspect of a viable circuit. Part 1 looked at the topology of high-side versus low-side arrangements; this part looks at switches and decisions in more detail. The switches Q: Is a high-side switch the same as […]
Multi-output power supply IC features 1700 V GaN switch
Power Integrations has introduced a 1700 V gallium nitride (GaN) switch, the 1700 V InnoMux-2. marking a new technical milestone in high-voltage power semiconductors. The technology is implemented in the company’s InnoMux-2 family of power supply ICs, designed for multi-output power supplies operating from high-voltage DC sources. “The new device is fabricated using our PowiGaN™ technology. […]
Solid-state relay switches 100 V in 0.1 ms
Vishay Intertechnology, Inc. introduced the industry’s first 1 Form A solid-state relay to offer AEC-Q102 qualification and a 100 V load voltage. Offered in the low profile SOP-4 package, the Vishay Semiconductors VORA1010M4 delivers the industry’s fastest turn-on and turn-off times of 0.1 ms typical, in addition to the highest operating temperature of +125 °C. […]
Switcher IC cuts need for second regulator, reducing board space
InnoMux2-EP switcher ICs for multi-output flyack power supplies eliminate the need for DC-DC post-regulators. A new design example report, DER-716, demonstrates the high level of integration realized by InnoMux2-EP devices. The single-stage power converter design is suitable for appliances and industrial power supplies. It features three constant voltage outputs (5 V, 12 V & 24 […]
Circuit breaker communicates with a host over SPI, collects data
STMicroelectronics has commenced production of automotive high-side power switches with proprietary intelligent fuse protection and a serial peripheral interface (SPI) for diagnostic data, permitting enhanced resilience and functional safety. The quad-channel VNF9Q20F is the first in a new family of monolithically integrated devices that combine ST’s advanced VIPower M0-9 MOSFET and proprietary STi2Fuse technology. Based on patented I2t […]
Hardware, software bundle boosts BLDC motor efficiency
Power Integrations enhanced its hardware-software bundle for brushless DC motors (BLDC) with BridgeSwitch-2, a new high-voltage integrated half-bridge (IHB) motor-driver IC family targeting applications up to 1 HP (746 W). The new ICs, which feature high- and low-side drivers and advanced FREDFETs with integrated lossless current sensing, deliver inverter efficiency of up to 99 percent. The IHB […]
