ABB QBDW025A0B641-HZ

The QBVW025A0B Barracuda series of dc-dc converters are a new generation of fully regulated DC/DC power modules designed to support 12Vdc intermediate bus applications where multiple low voltages are subsequently generated using point of load (POL) converters, as well as other application requiring a tightly regulated output voltage. The QBVW025A0B series operate from an input voltage range of 36 to 75Vdc and provide up to 25A output current at output voltages of 12Vdc in an industry standard, DOSA compliant quarter brick. The converter incorporates digital control, synchronous rectification technology, a fully regulated control topology, and innovative packaging techniques to achieve efficiency exceeding 96% at 12V output. This leads to lower power dissipations such that for many applications a heat sink is not required. Standard features include on/off control, output overcurrent and over voltage protection, over temperature protection, input under and over voltage lockout. The output is fully isolated from the input, allowing versatile polarity configurations and grounding connections. Built-in filtering for both input and output minimizes the need for external filtering.

• Compliant to RoHS Directive 2011/65/EU and amended Directive (EU) 2015/863. Compliant to REACH Directive (EC) No 1907/2006
• High and flat efficiency profile – >95.5% at 12Vdc, 40% load to 100% output
• Wide Input voltage range: 36 - 75Vdc
• Delivers up to 25Adc output current
• Fully very tightly regulated output voltage
• Low output ripple and noise
• Industry standard, DOSA Compliant Quarter brick: 58.4 mm×36.8 mm×11.7 mm (2.30 in × 1.45 in × 0.46 in)
• Constant switching frequency
• Positive Remote On/Off logic
• Output over current/voltage protection
• Over temperature protection
• Wide operating temperature range (-40°C to 85°C)
• ANSI/UL 62368 - 1 and CAN/CSA C22.2 No. 62368 - 1 Recognized, DIN VDE 0868 - 1/A11:2017 (EN62368 - 1:2014/A11:2017)
• CE mark to 2014/35/EU directive
• Meets the voltage and current requirements for ETSI 300 - 132 - 2 and complies with and licensed for Basic insulation rating 2250 Vdc
• Isolation tested in compliance with IEEE 802.3 PoE standards
• ISO 9001 and ISO14001 certified manufacturing facilities

• Distributed power architectures
• Intermediate bus voltage applications
• Servers and storage applications
• Networking equipment including Power over Ethernet (PoE)
• Fan assemblies and other systems requiring a tightly regulated output voltage