EDITOR’S CHOICE PRODUCTS


ECSN DELIVERS LATEST AUTHORISED DISTRIBUTOR PERFORMANCE FIGURES


In advance of figures for the first half of 2016 the Electronic Component Supply Network (ecsn) has released the latest monthly consolidated results returned by the association's authorised distributor (afdec) group. Chairman, Adam Fletcher said total monthly billings (net sales invoiced less credits) in June ‘16 increased by 31% when compared to the previous month and by 13% when compared to the same period last year. Overall bookings in June maintained the trend, increasing by 11% compared to the previous month and by 6% on the same period last year. The sales by month “three month moving average” for all electronic components suggests slight growth into July ’16, which according to Fletcher is "much in-line with historical trends." "An improved Billings performance in June is welcome good news", said Fletcher "but the figures are flattered somewhat by poor May results and the fact that our members benefited from three additional working days in June. He is however rather more upbeat about the double digit growth the UK authorised distribution sector had experienced in June compared to the same month last year: "This growth has been primarily driven by the semiconductor market, which is generally a leading indicator, said Fletcher, "but the UK remains pleasingly at odds with the global market where overall semiconductor demand is at best static or even slightly declining." ECSN is however concerned about the collapse in the Book-to-Bill (B2B)


ratio, which the association views as a key indicator of the health of the UK component market. In June ‘16 the B2B ratio came out at 0.91:1, a further 16 point decline compared to the previous month. According to Fletcher, customers appear to be consuming increasing volumes of product but are not placing the orders necessary to maintain their inventory, which he says "seems odd…" Despite the negative B2B result in June, Fletcher believes that the polynomial trend line suggests an overall positive B2B ratio is likely to continue. According to Fletcher ecsn's afdec members are very positive about their prospects in the UK/Ireland electronic components market: "The June results have given rise to optimism in amongst our authorised distributor membership but we remain in a period of some uncertainty," concluded Fletcher. "Although equity, currency, commodity and bond rates have stabilised post Brexit we'll just have to wait and see what the next quarter brings…!” www.ecsn-uk.org


TRIAC-DIMMABLE LED DRIVER ICS


Power Integrations has announced its LYTSwitch-7 single-stage, non-isolated, TRIAC-dimmable, buck topology LED driver IC family. Capable of delivering up to 22watts without a heatsink in a very small SO-8 footprint, these high-efficiency devices are suitable for bulbs, tubes and fixtures. Designs using this solution do not require bleeders; employing simple, passive damping for TRIAC management and an off-the-shelf, single-winding inductor, reducing component count to just 20, as compared to approximately 35 parts for typical dimmable LED driver boards. These ICs deliver a phase-cut (TRIAC) dimming solution with a


wide dimming range and monotonic dimming response. The LED drivers enable efficiency of greater than 86% - around 2% higher than conventional dimmable products – with high PF, accurate regulation and comprehensive protection. They suit low- or high- line input as well as wide-range universal-input designs for U.S. commercial lighting applications, which operate from 90 VAC to 305 VAC with TRIAC dimming enabled in low-line installations. These ICs have a host of protection features including thermal


foldback with end-stop shutdown, which protects the IC, driver and fixture at abnormally-high ambient temperatures by automatically reducing the current flow and dimming the lamp. Thermal foldback is the key to reducing costs associated with over-design of both electrical and mechanical components to meet reliability goals since the IC automatically limits unusual temperature excursions without extinguishing the lamp. Devices are also protected from open- and short-circuit conditions, input and output OV, overcurrent and SOA. These ICs meet international standards including: DOE Level 6 (external power supply), CEC Titles 20 and 24, ENERGY STAR Lamps Program Requirements Version 2.0, NEMA SSL-7A and EN61000-3-2 (C&D). www.power.com


/ ELECTRONICS ELECTRONICS | JULY/AUGUST 2016 7


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