Power supply suitable for dry and damp locations
Power Sources Unlimited
LD015D power supply
Power Sources Unlimited has announced the LD015D Series AC-DC Constant Current LED driver power supply, which is fully potted and suitable for dry and damp locations.
It adheres to UL1310 Class 2 Safety Standards (110V AC) or CE compliancy (230V AC).
Features include input voltage of 110 or 230V AC, DC output ranges from 8 to 48V DC and wide selection of pre-adjusted constant current outputs.
Other features include: operating temperature range of -20 to 60C, phase dimmable, compatible with standard Triac and electronic low-voltage dimmers; and 82 per cent efficient typical.
Units are RoHS compliant, Reach compliant, FCC Class B, CE, EN61000-4, 2, 3, 4, 5, 6, 8, 11 and UL.cUL safety certified, and carry a three-year warranty.
The Eltek Valere Flatpack2 HE Series of rectifiers has been introduced into the global telecommunications market, offering a conversion efficiency up to 96.5 per cent and a 50 per cent reduction in wasted energy, according to Power Sources Unlimited.
The approach described in this application note from Linear Technology uses four DC/DC µmodule regulators in parallel to increase output current while sharing the current equally among each device. This solution relies on the accurate current sharing of the µmodule regulators to prevent hotspots by dissipating the heat evenly over a compact surface area. The solution casts no thermal shadow on its surrounding components, further optimising thermal performance of the entire system.
Linear Technology has introduced the LTM4634: a triple-output step-down µmodule regulator in a 15 x 15 x 5.01mm BGA package with integrated heatsink. The thermally efficient package enables the LTM4634 to deliver full current on all three outputs (5A, 5A and 4A) and more than 70W of output power at 65°C ambient with 200LFM airflow.
Linear Technology has introduced the LTC4231, an ultra-low quiescent current (IQ ) Hot Swap controller, enabling safe board or battery insertion and extraction from 2.7V to 36V systems.
Linear Technology has introduced the LTC3807: a low-quiescent-current synchronous step-down DC/DC controller that draws only 50µA in standby mode with the output voltage in regulation. The 4–38V input supply range is designed to protect against high-voltage transients, continue operation during automotive cold crank and cover a broad range of input sources and battery chemistries.