ROHM Semiconductor has introduced the ML7670/ML7671 wireless power chipset for NFC-based charging in compact wearables such as smart rings, smart bands and smart pens. Operating at 13.56MHz, the chipset supports up to 250mW power transfer, while the ML7670 receiver achieves up to 45% efficiency in a 2.28 × 2.56 × 0.48mm package and integrates the […]
Consumer electronics
GaN motor drive integrates with USB-C PD stack on single platform
Arrow Electronics and Infineon Technologies have released the REF_ARIF240GaN, a 240W USB PD 3.2 reference design that combines high-power USB-C charging with GaN-based motor drive on a single platform. The design centers on Infineon’s EZ-PD PMG1-B2 USB PD 3.2 controller with integrated buck-boost, a 180MHz PSoC C3 Arm Cortex-M33 MCU, and 100V CoolGaN G5 transistors, […]
Small thyristor gate driver includes built-in transformer
The STSID140-12 from STMicroelectronics is a thyristor gate driver for small AC-powered appliances such as hairdryers, dimmers and motor-driven loads, integrating an isolation transformer rated at 1250 V RMS. Packaged in a 5.35 mm × 3.45 mm DFN with 1.2 mm height, it supports zero-cross and phase-angle control and provides up to 40 mA gate […]
Power inductors embed windings in a solid composite core
The 0615CDMCC/DS series power inductor from Sumida is a low-profile, shielded molded inductor designed for high-current DC/DC conversion in compact power systems. It uses metal compound molding to improve thermal stability, reduce EMI and suppress audible noise while maintaining stable inductance under load. The series offers inductance values from 0.12 µH to 1.50 µH in […]
Hybrid USB PD controller adds protocol flexibility without full firmware
The STUSB4531 USB Power Delivery sink controller from STMicroelectronics is a USB PD device featuring a hardwired PD stack with AUTORUN algorithms for software-free power negotiation and management in USB-powered electronics. A newly added hybrid mode allows an external processor to access USB PD protocol layers to support functions such as Alternate modes, battery messaging […]
Tiny synchronous-rectifier controllers improve flyback converter efficiency
The SRK1004 synchronous-rectifier controller from STMicroelectronics is designed to improve efficiency and reduce component count on the secondary side of active-clamp resonant and quasi-resonant flyback converters used in chargers power adapters and switched-mode power supplies. The 2 mm × 2 mm DFN device supports switching frequencies up to 500 kHz provides up to 1.6 A […]
Single-coil fan driver supports 5 – 32 V rails
Melexis introduces the MLX90411-D, an 800mA cooling fan driver that extends the MLX90411 family with enhanced customer configurability, smoother motor control, and simplified system integration. Designed for single-coil fans operating from 5 V, 12 V, 24 V, or 32 V, this innovation targets consumer systems (gaming, PC), home appliances (refrigerators), and power infrastructure (UPS, ESS). […]
5.5 V, 4 A buck targets automotive point-of-load rails
Diodes Incorporated has introduced the AP61406Q, an automotive-qualified synchronous buck converter designed for point-of-load regulators in systems such as infotainment, instrument clusters, telematics modules, and advanced driver assistance systems. The device supports up to 4 A output current with a maximum input voltage of 5.5 V and is intended for compact, high-efficiency DC-DC conversion in […]
Hybrid PV PMIC cold-starts at 275 mV, 5 µW
e-peas has introduced the AEM15820, an energy-harvesting power-management IC designed to interface with hybrid photovoltaic cells that operate across both indoor and outdoor lighting conditions. Hybrid PV sources can produce very low power under indoor illumination and scale to much higher levels in direct sunlight, creating a wide operating range that requires efficient conversion and […]
Metal-film capacitors filter AV mains lines
Würth Elektronik expands its portfolio of components for the mains input: The new series of WCAP-FTY2 film capacitors is optimized for use in noise suppression and complies with X1 or Y2 safety classes in accordance with IEC 60384-14. The very high impulse dielectric strength compared to X2 capacitors, along with other product-specific parameters, is confirmed […]
