Power

PFD7 is a family of 950V super-junction mosfets from Infineon, that can achieve 450mΩ Rds(on) in DPAK or 60mΩ in TO247. Gate-source threshold voltage is 3±0.5V. “Due to the low threshold voltage and tolerance, linear mode operation is avoided while allowing lower driving voltage and reduced idle loss,” according to the company. “By integrating a fast body diode with low ...

Omron added to its G9EC family of dc power relays, with a version that will switch 1kV 150A dc loads. Called G9EC-X1, “switching and driving sections are gas-injected and hermetically sealed, allowing these relays to interrupt high-capacity loads. The sealed construction also requires no arc space,” according to the company. At 98 x 44 x 86.7mm, it is identical in ...

Innoscience has brought out a range of 650V E-mode GaN HEMT devices. New 190mΩ, 350mΩ and 600mΩ RDS(on) devices in industry-standard 8×8 and 5×6 DFN packages join previously-announced 140mΩ, 240mΩ and 500mΩ RDS(on) parts, creating a significant portfolio of available devices. The 650V HEMTs are all qualified to JEDEC standards for chip and package. More, the Innoscience devices have also ...

A LIN pre-driver IC for relay DC motors from Melexis  includes 48 KB of memory (16 KB ROM for the included LIN protocol and 32 KB Flash for the application software. The MLX81160 is the latest addition to the company’s Gen3 family of compatible embedded motor drivers. By leveraging high-voltage SOI technology, this LIN-based pre-driver exhibits operational robustness for 12 ...

Texas Instruments has introduced a pair of closely-related dual-output PWM dc-dc converter controllers for space applications, one radiation-hardened and the other radiation tolerant. Both can operate across 100kHz to 2MHz and with external synchronisation, and will work with silicon or GaN power transistors via suitable drivers. Both include a 0.613V +0.7%/-1% reference. TPS7H5005-SEP is the radiation-tolerant part SEL, SEB, and ...

Power conversion efficiency is critical to enabling aircraft electrification. Henri Huillet, of GAIA Converter, proposes a three-phase LLC converter design that can help achieve this goal. Aircraft control and auxiliary functions have always incorporated a mix of technologies, but these safety-critical technologies have been slow to update over the years. There is still a mix of oil hydraulics, compressed air, ...

An input range of 6V to 75V is the eye-catching spec of STMicroelectronics’ L3751 synchronous buck controller, and many of its inputs can tolerate 100V. Its has a constant-frequency voltage-mode architecture, with its output voltage compared to an 800mV internal reference through a feedback pin. Input voltage feed-forward is implemented to improve line transient response. 100kHz – 1MHz switching and ...

Alpha and Omega Semiconductor has optimised the safe-operating-area of a mosfet for high-current 12V hot-swap ORing applications, but also sees it being used in e-fusing. Nominally a 30V part “AONS30300 delivers high SOA robustness under 10Vds with 10ms pulse width and has an SOA limit ~48V”, according to the company. Packaging is 5 x 6mm DFN. 710A is the absolute ...

Diodes is aiming at items-to-be-powered with a pair of USB Type-C PD3.0 PPS sink controllers – one easier to use and one more flexible. Applications are foreseen in home appliances, portable LED lights, portable smart speakers and cordless power tools. Both devices have built-in application firmware that automatically carries out USB PD 3.0 (v1.2) negotiation with a compliant charger to ...

EPC9176 is a GaN-based three-phase inverter with a 81 x 75 mm footprint (with connector) that can operate across 20 to 80V and up to 20A (28A peak). “This voltage range and power level makes the solution ideal for a variety of three-phase brushless dc motor drive applications with 36 to 80V input including eBikes, eScooters, power tools, drones, robots, ...