February, 2019
Waldenburg, Germany — Würth Elektronik eiSos has introduced its new Texas Instruments Power Man - agement Lab Kit (TI-PMLK), in part- nership with Texas Instruments and professor Nicola Fermia of the University of Salerno. The learning kit helps engineering students and electrical engineers to study and understand the impact of magnetics on a buck power supply. Most universities do not offer
courses in the area of power manage- ment, especially those that address the challenges associated with design and optimization of power electronics. Inductors and transform- ers are key components of DC-DC converters that are widely used in power management applications.
Alliance Unveils New Memory Portfolio
San Carlos, CA — Alliance Memory has unveiled its latest portfolio of memory, including a new family of high-speed CMOS pseudo SRAMs (PSRAMs) and additions to its selec- tion of mobile, low-power SDRAMS, containing SDR (LPSDR), double data rate (LPDDR), and DDR2 (LPDDR2) devices. The company also offers dis- continued Cypress Semicon ductor Corporation’s CY62256 low-power SRAMs. Alliance Memory’s line of
PSRAMs include densities from 8 to 128 Mb in 0.24 x 0.28 x 0.04 in. (6 x 7 x 1 mm) 48-ball FPBGA and 0.16 x 0.16 x 0.04 in. (4 x 4 x 1 mm) 49-ball FPBGA packages. Combining the most desirable features of SRAMs and DRAMs to provide designers with easy-to-use, low-power and cost-effec- tive memory solutions, the devices offer industrial temperature ranges and fast access speeds of 70 seconds, and operate from a single power sup- ply of 1.7 to 1.95V or 2.6 to 3.3V. Power-saving features include auto temperature-compensated self-re fresh (ATCSR), partial array self-refresh (PASR) and a deep power down (DPD) mode.
The company’s LPSDR SDRAMs
are designed to extend battery life in mobile devices by offering power con- sumption of 1.8V and densities of 128, 256 and 512 Mb in 54-ball and 90-ball FPBGA packages. The line includes devices with power consumption from 1.7 to 1.95V and densities of 256 and 512 Mb, as well as 1 and 2 Gb, in 60- and 90-ball FPBGA packages. Alliance Memory’s ICs are
designed to provide reliable, drop-in, pin-for-pin compatible replacements for a number of similar solutions in industrial, automotive, medical, com- munications, telecom, and consumer electronics products that require high memory bandwidth. They are particularly well-suited for high-per- formance PC applications. The devices help to eliminate costly redesigns by providing long-term support for end-of-life (EOL) compo- nents.
Contact: Alliance Memory, Inc.,
511 Taylor Way, San Carlos, CA 94070 % 650-610-6800 E-mail:
kim@alliancememory.com Web:
www.alliancememory.com
www.us-tech.com The Lab Kit’s board consists of
two independent buck circuits with six different inductors that can be individually selected. Users can inves- tigate the performances of inductors with different core materials, induc- tance, and size to analyze their impact on the static and dynamic per- formance of regulators. Each circuit has adjus table operating conditions, including a flexible switch ing frequen- cy (100 to 700 kHz) to observe its effect on inductors and on switching regulators operating with different inductors. Both regulators incorpo- rate a passable EMI input filter to analyze the influence of inductors on conducted noise attenuation and to compare the performances of filters
with inductors selected according to different design strategies. Each regulator includes over- voltage, over-current and polarity
Page 123 Würth: Lab Kit to Study Power Supply Magnetics
reversal protections to prevent dam- age to the board. Current sense transformers and integrated current shunt monitors on the board allow easy current measurements using standard voltage probes. In addition to the hardware, a
companion book with structured labs helps the users investigate the board by autonomously performing six detailed experiments for steady- state, transient and dynamic condi-
tions seen in real-world applications. Contact: Würth Elektronik eiSos GmbH & Co. KG, Max-Eyth-Strasse
TI-PMLK learning kit to study magnetics in power supplies.
1, 74638 Waldenburg, Germany % +49-7942-945-5186 E-mail:
sarah.hurst@
we-online.de Web:
www.we-online.de
Mark.
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Shrink your device with ultra low profile capacitance. Visit
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