A flurry of activity continued Wednesday at Electronica 2010, with product releases by companies such as Texas Instruments, Analog Devices, Tyco Electronics, KEMET, and Vicor.
Texas Instruments Inc. (TI) introduced a new single-stage LED lighting pulse width modulation (PWM) controller. The TRIAC-dimmable solution regulates LED current and also achieves near unity power factor. The reference design can achieve 85% efficiency, which enables high-density, small form factor designs. The TPS92210 is designed for general lighting applications, such as commercial and residential recessed, troffer, light bulb replacement, architectural and display lighting.
Analog Devices, Inc. introduced a SoC (system-on-chip) device that integrates all of the RF (radio frequency) transmit and receive functions, data conversion, and processing elements required to enable a fully programmable radio. Designed for a range of remote, battery-powered wireless sensor network (WSN) applications, including utility meters, medical telemetry systems, building automation, asset tracking and security systems, the ultra-low-power ADuCRF101 radio SoC features a 12-bit, 1Msps ADC (analog-to-digital converter), a 32-bit ARM® Cortex-M3, on-chip SRAM and FLASH memory and an ISM-band radio transceiver. Download the ADuCRF101 radio SoC data sheet and order samples.
Tyco Electronics announced the introduction of a Metal Hybrid PPTC (MHP) technology useful for high-rate-discharge battery applications at ratings above 30VDC/30A such as cordless power tools, e-bikes and back-up power supplies. MHP technology uses a new hybrid circuit protection approach that combines a bimetal protector in parallel with a polymeric positive temperature coefficient (PPTC) device. This integrated solution provides resettable overcurrent protection and utilizes the low resistance of the PPTC device to help prevent arcing in the bimetal protector at higher currents, while also heating the bimetal to keep it open and in a latched position. The initial product in a planned family of MHP devices, the MHP30-36 device has a 36Vdc/100A maximum rating and a time-to-trip of under five seconds at 100A (at 25°C). The device’s hold current is 30A and the initial resistance is under 2m&Omega.
KEMET Corp. announced eight new film capacitors products for EMI suppression, pulse and AC circuits, and coupling/decoupling. Designed with the latest in manufacturing and material technology, these new solutions offer higher performance in smaller sizes.
KEMET’s newly-released film capacitors include the following: five new safety agency approved EMI capacitors (X and Y capacitors), covering all common voltages up to 760Vac; two new metallized polyester coupling/decoupling capacitors covering a broad range of both wound and stacked technology (with a 125°C temperature rating, one series is suitable for automotive and other demanding applications); and a new pulse and ac capacitor series in metallized polypropylene, offering an excellent range of capacitance and voltage with increased pulse handling capabilities.
Vicor Corp. introduced the PFM™ VI BRICK™ module, an isolated ac-dc converter with Power Factor Correction (PFC). With its Adaptive Cell™ architecture enabling consistently high efficiency over worldwide ac mains, the PFM VI BRICK delivers 330W at 48V (SELV) in a 9.5 mm-thin profile.
