Product news

Evaluate ST's solution for LED street lighting

STLUX385A discloses new possibilities for high-power LED applications, paving the way to the smart cities.
The STEVAL385LEDPSR demonstration board, based on STLUX385A, enables customers to rapidly develop digital power controllers for 100W LED lamps. The solution reaches a 92% efficiency at full load while maintaining a <200mW standby consumption. The high precision dimming is adjusted using a primary side regulation (PSR) control technique. STEVAL385LEDPSR provides physical communication interfaces such as a DALI, isolated 0-10, UART and can be easily fit with Wi-Fi, powerline modems, Bluetooth® and ZigBee® interfaces driven by STLUX385A. More

LED driver with high dimming capability supports multiple topologies 

The LED5000 is a monolithic buck constant-current switching regulator specifically designed to drive long LED strings. It operates with an input voltage range from 5.5 to 48 V, providing an output current up to 3 A, with a very low feedback voltage (200 mV). It embeds high-performance PWM circuitry to control LED brightness. Other topologies may be implemented, such as buck-boost (positive or negative) or floating boost, giving a high degree of design flexibility. More

New 1200 V SiC diodes change the deal in solar inverter rectification

ST’s new 1200 V SiC diode range starts with a 6-amp device with best-in-class switching performance combined with a low VF. The STPSC6H12B is perfect for use in photovoltaic inverters and in all high-voltage, high-power applications requiring negligible switching losses. Able to work at several hundreds of kHz over its full operating junction temperature range, it can improve the overall application efficiency by as much as to 2%. Packaged in a high-voltage 2-lead DPAK, it meets both IEC 60664 and UL840 standards. More

New ultrafast 600 V Tandem rectifiers improve PFC performance with minimal cost overhead ​

With ultralow switching losses, ST’s second generation of Tandem diodes is ideal for circuits operating in continuous-conduction mode. Their VF/QRR trade-off positions these rectifiers between standard ultrafast and silicon-carbide diodes with regards to price and performance. They offer the best, high-efficiency alternative, with a cost approximately 30% lower than a SiC component budget. Their high EMI performance and robustness ease design and reduce the time to market. More

4.2 W non-isolated flyback converter based on the VIPer06HS

The STEVAL-ISA113V1 demonstration board is a non-isolated flyback converter that delivers up to 4.2 W over a wide input voltage range (90 to 265 VRMS). The board generates a 12 V nominal output voltage at 0.35 A continuous operation using direct feedback from the output. The board is fully protected against overload, feedback disconnection, and overheating, and is based on the VIPer06HS monolithic converter. More

Come visit ST at APEC 2014 in Fort Worth, Texas, USA, on March 16-20

Visit STMicroelectronics at APEC in booth 1006 offering the largest portfolio in power conversion and experience cutting-edge technologies first hand. Technology experts will be on hand to discuss the newest advances in digital power control for lighting, power supply and wireless battery charging, as well as state-of-the-art technologies in Power MOSFET, IGBT and rectifiers. ST engineers have been selected to present the latest in technology and products during the lecture sessions and poster bulletin board activity. More

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APEC 2014
March 16 - 20
Fort Worth, Texas