HPQ-12/25-D48NB-C

The HPQ-12/25-D48 series offers high output current (up to 25 Amps) in an industry standard “quarter brick” package requiring no heat sink for most applications. The HPQ-12/25-D48 series delivers fixed 12 Vdc output at 300 Watts for printed circuit board mounting. Wide range inputs on the 2.3” x 1.45” x 0.49” converter are 36 to 75 Volts DC (48 Volts nominal), ideal for datacom and telecom systems. The fixed output voltage is regulated to within ±0.25%.Advanced automated surface mount assembly and planar magnetics deliver galvanic isolation rated at 2250 Vdc for basic insulation. To power digital systems, the outputs offer fast settling to current steps and tolerance of higher capacitive loads. Excellent ripple and noise specifi cations assure compatibility to CPU’s, ASIC’s, programmable logic and FPGA’s. No minimum load is required. For systems needing controlled startup/shutdown, an external remote On/Off control may use either positive or negative logic. Remote Sense inputs compensate for resistive line drops at high currents.A wealth of self-protection features avoid problems with both the converter and external circuits. These include input undervoltage lockout and overtemperature shutdown using an on-board temperature sensor. Overcurrent protection using the “hiccup” autorestart technique provides indefi nite short-circuit protection. Additional safety features include output overvoltage protection and reverse conduction elimination. The synchronous rectifier topology offers high efficiency for minimal heat buildup and “no heat sink” operation. The HPQ-12/25-D48 series is certifi ed to full safety standards UL/EN/IEC/ CSA 60950-1, 2nd edition and RFI/EMI conducted/ radiated emission compliance to EN55022, CISPR22 with external filter.