With a 13:1 input voltage range of 12V to 160V, the MAD33 (8W), MAD32 (10W), MAE35 (15W) and MAF35 (20W) have been developed to provide systems designers with a single part number that is able to power a large range of transportation industry applications.
The MAD-MAE-MAF series are designed to meet railway specifications EN50155, EN50121-3-2, EN61373 and EN45545, but as well ISO7637-2 for 24V vehicles, and EN12895 for industrial trucks and other industrial applications such as robotics. The 8W MAD33 is packaged in an industry standard DIP24 case, and the MAD32, MAE35 and MAF35 are housed in a 2x1 inch case. All four series have a typical efficiency rating of 86%, which considering the extra-wide up to 13:1 input range is an outstanding figure.
Systems designers are facing challenging situations by having to develop products able to operate in many different applications powered by a large range of voltages. With an operating input voltage range from 12V to 160V and a power rating range from 8W to 20W, the new MAD-MAE-MAF series converters are intended to simplify design while shortening time-to-market and reducing documentation and inventory.
The new series of converters are suitable for low power loads and devices in railway applications such as communication devices, GSM-R phones and their docking stations, routers/Wi-Fi access points, small screens, USB charging sockets (both in-seat and driver’s cabin), sensors, and standby power for larger devices.
Available in four output voltages of 5, 12, 24 and 48V in natural convection conditions, the MAD33 delivers 8W and the MAD32 10W. The MAD33 is available in a Dual In Line Packaging (31.8 x 20.3 x 12.7 mm – 1.25 x 0.8 x 0.5 inches) and the MAD32 in an industry standard 2x1 inch packaging (50.8 x 25.4 x 10.2 mm – 2.00 x 1.00 x 0.40 inches). The 15W MAE35 and 20W MAF35 are available in three output voltages of 12, 24 and 48V and are similarly provided in 2x1 packages.
All series deliver full output power in ambient temperatures up to 600C and continue to deliver power with a linear derating up to the 1000C case.
Designed for ruggedized environments, the MAD-MAE-MAF series meet thermal shock and vibration requirements as specified in EN61373 and MIL-STD-810F, and they all meet the Fire and Smoke EN45545-2 standard.
All models within the MAD-MAE-MAF series feature full protection level sets including input voltage lockout, short-circuit protection and current limiting. All units operate at a fixed switching frequency and including PI type input filters. The operating temperature range is from -40 to +850C ambient (maximum 105 degrees C case) and storage is from -55 to +1250C.
The new series of converters from Powerbox meet the requirements of UL60950-1, EN60950-1 and IEC60950-1 standards, and CE mark 2014/30/EU. All products have an input to output isolation voltage of 3,000 VAC. The MAD-MAE-MAF series are RoHS compliant.
