An industry standard 24.4mm x 27.9mm x 9.1mm (0.96in. x 1.10in. x 0.36in.) package and pinout coupled with a wide input voltage range of either 9-36VDC or 18-75VDC simplifies the integration of the UEI15 series into a wide array of applications.
The new modules use a synchronous rectifier forward topology to help them achieve efficiency levels of up to 89%. Stable no-load operation is possible with no external components and the converters have an industrial operating temperature range of -40ºC to +85ºC (with derating).
The UEI15 series has full magnetic and optical isolation of 2000VDC (9-36Vin) and 2250VDC (18-75Vin) that includes basic insulation. Fast settling to current step loads and tolerance of higher capacitive loads makes the UEI15 series suitable for connection to digital systems, whilst excellent ripple and noise specifications ensure compatibility with circuits using CPUs, ASICs, FPGAs and programmable logic. For applications requiring controlled start-up and shutdown, remote on/off control may be used by means of an external switch, transistor or digital logic.
Design features of the UEI15 include input undervoltage lockout and over-temperature shutdown plus output overvoltage and reverse conduction elimination. Output current limiting uses the ‘hiccup’ auto-restart technique and the converters sustain short-circuits indefinitely.
The lead-free assembly helps ensure full compliance with RoHS standards, and all modules in the series meet UL 60950-1, CAN/CSA-C22.2 No. 60950-1, IEC60950-1 and EN60950-1 safety approvals.
