STMicroelectronics’ VIPer222 controller for high-voltage converters up to 8W brings small size, low cost, and versatility to applications such as home appliances, building-automation devices, smart lighting, and smart meters. With integrated features including an error amplifier, current-sensing MOSFET, and high-voltage startup circuitry, the VIPer222 can be used in a wide variety of popular converter topologies. These include […]
Standalone VBUS-power controller handles 5-V USB-C charging apps
The STUSB4500L from STMicroelectronics is a small-footprint addition to the Company’s USB-C controller IC family designed and certified for pure 5V sink-only applications. All mandatory features to use the USB-C connector as a 5V universal power plug are integrated, allowing designers to implement USB-C charging solutions quickly and easily without studying the standard or writing code. USB-C […]
Sync-rect controllers make for high-efficiency power adapters
The STMicroelectronics SRK1001 secondary-side synchronous-rectification controller introduces adaptive features that cut bill-of-materials costs, minimize circuit size, and simplify the design of power adapters, chargers, USB Power Delivery outlets, and lighting power supplies based on flyback topologies. Designed for fast turn-on with minimum delay, and introducing innovative adaptive turn-off logic, the SRK1001 maximizes synchronous-rectification MOSFET conduction time for […]
Battery-management IC extends driving range, reliability, and safety of EVs
STMicroelectronics has revealed new battery-management technology that increases reliability, safety, driving range, and cost-effectiveness of electric vehicles (EVs). EVs are predicted to reach cost parity with conventional combustion-engine vehicles before the end of this decade and overtake in sales volume by 2038. ST, leveraging its technical capabilities to help carmakers achieve these goals, has announced an […]
LED drivers and controllers simplify efficient and reliable lighting design
ON Semiconductor has launched a new family of four devices that facilitate the high levels of performance and innovative functionality that vehicle manufacturers and consumers now expect from automotive exterior and interior lighting. Aimed specifically at low power solid state lighting, the new family comprises two LED drivers (NCV7683 and NCV7685) and two current controllers (NCV7691 and […]
Multi-mode, forced-frequency-resonant digital power controller targets fast-charger designs
Infineon Technologies AG launches the XDP digital power XDPS21071, the first flyback controller in the industry with zero-voltage switching (ZVS) on the primary side to achieve high efficiency. This controller is aimed at fast-charging applications such as USB-PD or QuickCharge. Light-load efficiency is optimized for variable output applications. The XDPS21071 is a high-performance digital flyback […]
The move to synchronous power supplies in smart factories
The need for high efficiency is pushing industrial power supplies toward synchronous topologies that minimize the use of external heat sinking and cooling. Anthony “Thong” Huynh, Maxim Integrated Buildings, factories, and industrial equipment are getting more space-efficient, driving a move toward miniaturizing the underlying components that enable intelligence and automation. This trend challenges the power […]
USB PD controller enables quick charges with low standby power
Diodes Incorporated announced the availability of the AP43771 USB Type-C power delivery (PD) controller, featuring an embedded microcontroller with one-time programmable memory. When combined with Diodes Incorporated’s complementary technology, the AP43771 forms the basis for offline chargers, delivering between 18W and 33W while supporting Quick Charge with extremely low standby power consumption. The AP43771 represents […]
Ten-watt 1×1-in dc/dc converters target rugged industrial/rail apps
The new THN 10 WIR series 10-W high-density dc/dc/ converts come in the industry standard 1×;1-in footprint and are qualified for rugged industrial and railway applications, and are certified to EN 50155 and EN 61373 standards. The THN 10 WIR series of ruggedized 10-W dc/dc converters are designed and manufactured for high-reliability in harsh environments. […]
Integrated active clamp flyback controllers target mobile phone, consumer product power supplies
Sianna Semiconductor, an ISO 9001 certified company, today announced that its SZ1101 and SZ1105 fully integrated active clamp flyback (ACF) controllers for designing high-power-density AC/DC power adapters are now fully qualified and in production. The SZ1101 33W version is suited for designing mobile phone travel adapters, while the SZ1105 65W version is suited for designing […]
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