Fully isolated low profile dc/dc converter

Designed specifically for high volume cost sensitive telecom, networking, and instrumentation applications, the modules provide a single 3.3Vdc output. The family measures 58.4 x 22.9 x 10.16mm and meets all the mechanical and electrical requirements of the industry standard DOSA compliant 1/8th brick package. Complying with the worldwide requirements for telecommunications network voltage (TNV) applications, the devices have a nominal input voltage of 48Vdc and can accommodate a wide input range from 36 to 75Vdc. There are two models in the series. The UEE-3.3/15-D48 offers a 15A output and the UEE-3.3/30-D48 a 30A output. Both fit within the industry standard DOSA Eighth 'brick' package. Mounting options include through hole pin or surface mount. A baseplate option is available for the 30A through hole model. Designed to operate in a range of applications and environments, the UEE series can operate from –40 to 85°C in telecommunications equipment when forced air cooling is applied. An output trim function allows the output to be adjusted +/-10% of Vout Nominal for voltage margining and to compensate for voltage drops within some applications. A Vout Sense function can also compensate for pcb losses. An on/off control input allows the application to enable or disable the output in order to sequence startup and shutdown if required. Use of positive or negative logic options for this control are available and can be specified at the time of order. Other protection features include input under voltage lockout, output short circuit protection, thermal shutdown, output short circuit protection, and 2250Vdc (BASIC) insulation that complies with the requirements for Power Over Ethernet applications.