New-Tech Europe Magazine | Q2 2021
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no forced air is required. This significantly enhances the reliability of the overall system while reducing system size and weight as well as simplifying mechanical design. The silent fan-less operation makes the LCE80 ideally suited to applications where audible noise can be an issue such as office environments. The LCE80 range features a total of ten single output models covering the range 5.0V to 54.0V with efficiency levels as high as 90%. The output operates in constant voltage or constant current mode depending on the load condition, ensuring compatibility with a wide variety of applications. An ultra-wide input range of 90 to 305VAC is offered as standard, allowing the units to operate safely at a single-phase high line of 277VAC nominal. All units in the range offer Class I and Class II operation and carry a wide range of relevant approvals including EN55032, EN55015 and EN61000-3 for EMC emissions and EN55035 and EN61547 for EMC immunity. Additionally, the units are approved to EN/UL/IEC62368-1 for ITE safety and EN61347-1/UL8750 for lighting and displays. For loads greater than 50W all LCE80 units meet the harmonic Class C limits that are necessary for lighting applications. They are also compliant with the limited power source (LPS) requirements for 12V and above, ensuring a reduced risk of fire or electrocution during operation and handling as well as fault scenarios. Housed in a convenient and compact 4” x 2” x 1.1” (101.6mm x 50.8mm x 27.9mm) open frame format, the LCE80 units include short circuit, overvoltage and overload protection that protect the power supply and any load that it is powering. The LCE80 series is available from Digi-Key, Distrelec, Farnell, Mouser, RS Components, approved regional distributors, or direct from XP Power and offers a 3-year warranty.
Low RDS(on) 40 V MOSFETs from Nexperia deliver highest power density for Automotive and Industrial applications Class-leading SOA and Avalanche characteristics increase ruggedness and reliability Nexperia, the expert in essential semiconductors, announced new 0.55 mΩ RDS (on) 40 V power MOSFETs in the high- reliability LFPAK88 package for automotive (BUK7S0R5-40H) and industrial (PSMNR55-40SSH) applications. These devices are the lowest RDS(on) 40 V parts that Nexperia has ever produced and more importantly, they deliver power densities more than 50X greater than traditional D2PAK devices. More, the new devices also offer improved performance in both Avalanche and Linear mode, leading to increased ruggedness and reliability. Neil Massey, Nexperia’s Product Marketing Manager comments: “The new 8 x 8 mm LFPAK88 MOSFETs combine the latest high performance superjunction silicon technology with our proven LFPAK copper clip technology, which is renowned for delivering significant electrical and thermal performance benefits. The resulting low RDS(on) enables us to pack more silicon in the package, improving power density and shrinking device footprint.” Measuring just 8x8x1.7 mm, the new power MOSFETs also feature class-leading linear mode / safe operating area (SOA) characteristics for safe and reliable switching at high current conditions. SOA at 1 ms, 20 VDS operating conditions is 35 A due to a combination of silicon and package, while at 10 ms, 20 VDS where the package dominates, SOA is 17 A. These figures are 1.5 – 2x better than the competition. The devices also offer the best single pulse avalanche rating (EAS) at 2.3 J and very strong ID current rating of 500 A, which – unlike some competing devices – is a measured rather than theoretical limit. The size and performance benefits afforded by the Nexperia 8 x 8 mm LFPAK88 MOSFETs enable designers to replace two paralleled old-style components with one new LFPAK88, simplifying manufacturing and increasing reliability. The AEC-Q101-qualified BUK7S0R5-40H parts – which deliver more than twice the reliability performance demanded by the automotive standard – suit braking, power steering, reverse battery protection, e-fuse, DC-DC converter and motor control applications. The industrial PSMNR55-40SSH MOSFETs suit battery isolation, current limitation, e-fuse, motor control, synchronous rectification and load switch applications in power tools, appliances, fans, and e-bikes, scooters and wheelchairs. For more information, including product specs and
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