Diodes has introduced a 12-channel constant-current LED driver arranged as four channels of RGB. AL58221 has open-drain outputs that can sink up to 60mA and withstand 24V. Maximum red green and blue currents are set with three resistors, then the individual channels are digitally-modulated to set their brightness. To reduce flicker, adaptive pulse density modulation is used, with diodes claiming ...
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The latest Electronics Weekly product news, ranging from Analogue and Asics to Software and Test.
Supermicro updates X14 server family with Xeon 6900
Supermicro has added variants to X14 servers it announced in June. “The new systems feature significant upgrades across the board, supporting a never-before-seen 256 P-cores [performance cores] in a single node, memory support up for MRDIMMs at 8,800Mtransfer/s and compatibility with next-generation SXM, OAM, and PCIe GPUs,” according to the company. “These new X14 systems include 10U and multi-node form-factors ...
Protection diode for OPEN Alliance 100Base-T1 and 1000Base-T1
VETH100A1DD1 is a bidirectional ESD protection diode for automotive Ethernet, compliant with OPEN Alliance 100Base-T1 and 1000Base-T1. Made by Vishay, it comes in a wettable flank DFN1006-2B package measuring 1 x 0.6 x 0.45mm. Working range is ±24V, and clamping is typically at 31V for 1A, “a result of its snap-back technology with a trigger voltage >100V”, said the company. ...
lo temp co RF ceramic capacitors for comms
Kyocera AVX has released low-ESR C0G/NP0 dielectric RF MLCCs (multi-layer ceramic chip capacitors) “inspired by communications market demand for smaller RF capacitors that deliver repeatable performance”, it said. Called KGU, they come in values from 0.1 to 100pF with tolerances as low as ±0.05pF. They come in four chip sizes: 01005, 0402, 0603 or 0805 (EIA). Class I C0G, also ...
3A bipolar transistors in 2x2mm DFN2020D-3 package
Nexperia has announced 20 bipolar power transistors in 2 x 2mm DFN2020D-3 packaging, half of them automotive-qualified. The span 50 and 80V ratings, 1 to 3A currents and both npn and pnp polarities. “DFN2020D-3 packaged devices deliver an 80% reduction in board space when compared to SOT89, and a 90% reduction compared to SOT223,” according to the company. “The package ...
Sticky-back EMI reduction patches
Würth Elektronik has created a sticky-back tape that blocks or absorbs electric and magnetic fields across 100Hz to 25GHz. Called WE-EMIP EMI absorber sheet, is only 72μm thick and consists of a layer of aluminium, a magnetic absorber layer (100μ0 permeability at 1MHz) and a polymer carrier layer. “It offers attenuation exceeding 40dB over a wide frequency range,” according to ...
Nvidia offers blueprints from which to develop generative AI applications
Nvidia has announced pre-trained, customisable AI workflows for creating customer service avatars, for data-mining pdf documents, and for virtual drug screening. They are the first three ‘NIM Agent Blueprints’, which the company said will be a catalogue of products to jump-start developers creating applications based on AI agents. They include sample applications built with Nvidia’s ‘NeMo’, ‘NIM’ and partner micro-services, ...
112 x 62mm IGBT module for 1kV flying capacitor boost converters
Onsemi has announced a 112 x 62mm power module for flying capacitor boost converters up to 1kV. It combines 1kV silicon IGBTs and 1.2kV silicon carbide diodes in the company’s F5BP package. Called NXH500B100H7F5SHG, it can handle continuous collector currents up to 210A (630A pulsed) (Tj = 175°C). Abs max power dissipation is 305W. To reducing stray inductance and thermal ...
Mains 3A brush-less dc motor driver shrugs off 600V surges
Toshiba is aiming at air conditioners, air purifiers and pumps with an IGBT-based brush-less dc motor driver, suitable for sine-wave generation, in a ~13 x 33mm through-hole HDIP30 package. TPD4165K, as it will be know, can handle a maximum output of 3A, compared with 2A for the company’s earlier TPD4163K or TPD4164K. Absolute maximum input voltage has been raised to ...
Precision shunts from 1A to 6,000A
Bourns has added six shunt resistor types its Riedon range, that it acquired in April last year when it bought Riedon Inc. Construction is with brass end-caps holding Manganin resistance elements. The latter has a temperature coefficient ~±15ppm/°C. Kelvin contacts are provided for the voltage output. Panel-mount RS resistors have values from 41.7μΩ to 20mΩ (±0.25%). There are sub-versions here: ...