Postato : 11 Jan 2016
TDK Corporation announces the introduction of the iBH series of 80W, 20A Point of Load (POL) non-isolated DC-DC converters, featuring a wide 0.7V to 5.5V output adjustment range. The iBH converters can operate from either 5V or 12Vdc bus voltages, having a wide input voltage range of 3.5V to 14V, reducing inventory carrying costs by stocking just one part number.
Measuring just 20.3 x 11.4 x 9.9mm and weighing just 6g, these compact converters demonstrate an increase in output current of over 66% compared to TDK-Lambda’s similarly sized iBF series. The iBH series is suited for a number of applications, including datacom, telecom, industrial, broadcast and test and measurement equipment.
With efficiencies of up to 96% the full 80W output of 5V at 16A can be achieved in natural convection with ambient temperatures of 55 ºC. With forced air cooling the temperature can be increased to 75ºC, and with derating the converters can operate in ambient temperatures in excess of 100ºC. The iBH converters have excellent transient response characteristics, without the need for externally mounted loop tuning circuitry.
Standard features include a trim pin for output voltage adjustment, positive remote sense, remote on-off (positive or negative logic), input under-voltage, over-current and over-temperature protection. A Power Good (low on fail) signal provides indication that the output outside of the +/-12% set point tolerance, due to input under-voltage, overload, over-temperature or loss of control conditions.
Safety certification includes IEC/EN 60950-1, UL/CSA 60950-1 with CE marking for the Low Voltage and RoHS2 Directives.