Power-One Half-Brick Provides-Wide Output Voltage Range For Cellular Infrastructure & RF Amplifier Applications
Power-One, Inc. introduced the HBA48T12280, a 350W half-brick dc-dc converter for use in cellular infrastructure applications and more specifically to RF amplifier applications. The HBA48T12280 has a smooth efficiency curve that equals or exceeds 90% for loading conditions ranging from 40 to 100%. Its ultra-wide trim range allows it to be configured to operate within a 21 to 33Vdc output, allowing it to be used across a multitude of RF amplifier technologies.
Additional features include: 36-75Vdc input range, -40 to 100°C operating temperature range, capability to withstand a 100V input transient for 100ms, ability to start-up into pre-biased loads, and an on-board input differential LC-filter. The HBA48T12280 has an industry-standard half-brick footprint (2.4 x 2.28 inch, 61 x 57.9mm), a low profile 0.5 inch (12.7mm) height, and is RoHS compliant for all six substances.
Protections include: output overvoltage and overcurrent, input undervoltage lockout, and overtemperature shutdown. Interface and trim capabilities include: remote sense, remote ON/OFF (positive or negative logic option), and +18%/-25% output voltage trim ranges with industry-standard trim equations. Safety approvals include: UL60950-1/CSA 22.2 No. 60950-1, EN60950-1 and IEC60950-1.
Evaluation models are usually available from stock.
