STMicroelectronics’ L6983 38V/3A synchronous DC/DC converters maintain high efficiency at all loads with a maximum value of 95% and are highly integrated with synchronous MOSFETs on-chip to save external components and simplify design. The L6983 converters have extremely low quiescent current of just 17µA. Low current consumption (L6983C) and low-noise (L6983N) variants are available. The L6983C enters […]
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PMICs optimized to work with STM32MP1 Arm Cortex-A7 and Cortex-M4 core MCUs
With features including four DC/DC buck converters, a boost DC/DC converter, and six low-dropout regulators (LDOs), the STMicroelectronics STPMIC1 power-management IC (PMIC) satisfies the complex power demands of highly integrated application-processor based systems. The chip is optimized as a companion PMIC for ST’s STM32MP1* heterogeneous multicore microprocessors, which target a broad range of applications by integrating single […]
Servodrive eval kit includes 100-W BLDC motor, incremental encoder
STMicroelectronics is working with maxon, a leading precision-motor provider and a member of the ST Partner Program, to accelerate the design of robotics applications and industrial servo drives. The companies will demonstrate a jointly developed servo control kit at sps 2019 trade show in Nuremberg, November 26-28 (Booth 10.1/138). The EVALKIT-ROBOT-1 is a plug-and-play solution aimed […]
Transient-voltage-suppression diodes deliver higher protection in smaller packages
The latest generation of transient-voltage-suppression (TVS) diodes from STMicroelectronics delivers market-leading power density, handling 600W and 1500W transient power in SMB Flat, and 400W and 600W in SMA Flat packages that are just 1.0mm high. In addition to the lower profile, ST’s new 1500W SMB Flat package has transient-power capability equivalent to that of conventional devices in […]
High-voltage switch IC delivers 3 A to 64 channels
STMicroelectronics’ 64-channel high-voltage analog-switch IC delivers integration for advanced ultrasound systems, probes, piezoelectric drivers, automated test equipment, industrial automation, and process control systems. The STHV64SW comprises a shift register for logic control signals, self-biased high-voltage MOSFET gate drivers, and N-channel MOSFET switches capable of providing up to ±3A peak output current. The switches respond quickly, with 1.5µs […]
Flexible 12-channel automotive LED driver simplifies state-of-the-art lighting
The STMicroelectronics ALED1262ZT 12-channel LED driver targets advanced automotive rear combination lamps and interior lighting, bringing features to support complex and innovative visual effects. Independent 7-bit PWM dimming on all channels allows flexible control of tail, stop, and indicator lights, with dynamic effects. Each channel delivers constant output current at 19V for controlling multi-LED series strings. Adjustment […]
Power Electronics Top Talks in September 2019 on EDABoard.com
Peer-to-peer, engineer-to-engineer questions and answers from the EDABoard.com engineering community around power electronics. Click the “Read more” link and follow the entire conversation and maybe add your two cents by logging in to EDAboard.com Flyback SMPS power MOSFET getting hot – I built this flyback SMPS transformer for this circuit as shown above using PQ3230 […]
Distortion-cancelling high-voltage LED Driver handles up to 80 W
Featuring a novel distortion-cancelling input-current shaping (ICS) circuit, the HVLED007 AC/DC LED driver from STMicroelectronics enables energy-saving solid-state luminaires to comply with increasingly stringent lighting regulations. The HVLED007 implements a peak current mode PFC control optimized for isolated high-power-factor quasi-resonant flyback converters. The ICS ensures an effectively sinusoidal input waveform with very low total harmonic distortion […]
Power Electronics Top Talks in August 2019 on EDABoard.com
Peer-to-peer, engineer-to-engineer questions and answers from the EDABoard.com engineering community around power electronics. Click the “Read more” link and follow the entire conversation and maybe add your two cents by logging in to EDAboard.com 1 minute vs. 1-second isolation voltage test – Some offline transformers are spec’d for 3750vac for 1second (3mA). Some are spec’d […]
High-voltage converter carries 1,050-V-breakdown MOSFET
The STMicroelectronics VIPer26K high-voltage converter integrates a 1050V avalanche-rugged N-channel power MOSFET that enables offline power supplies to combine a wide input-voltage range with the advantages of a simplified design. The extremely high voltage rating of the VIPer26K MOSFET eliminates the need for conventional stacked FETs and associated passive components to achieve similar voltage capability, and smaller […]
