BQ55090EZB48 Datasheet, PDF (1/13 Pages) SynQor Worldwide Headquarters – Industry standard quarter-brick pin-out configuration

35-55V
Continuous Input
9.6V
Output
48A
Current
The BusQor® BQ55090EZx48 bus converter is a next-
generation, board-mountable, isolated, fixed switching
frequency dc/dc converter that uses synchronous
rectification to achieve extremely high conversion
efficiency. The BusQor series provides an isolated step
down voltage from 48V to 12 or 9.6V intermediate
bus with no regulation in a standard “eighth-brick”
module. BusQor converters are ideal for creating the
mid-bus voltage required to drive point-of-load (non-
isolated) converters in intermediate bus architectures.
Technical
Specification
BQ55090EZB48
2000V dc
Isolation
Eighth-brick
DC-DC Converter
®
Operational Features
• High efficiency, 97.1% at full rated load current
• Delivers 48A full power with minimal derating - no heatsink required
• Operating input voltage range: 35-55V
• Fixed frequency switching provides predictable EMI
• No minimum load requirement
Control Features
• On/Off control referenced to input side
(positive and negative logic options are available)
• Inherent current share (by droop method) for high current and
parallel applications.
BQ55090EZB48 Model
Mechanical Features
• Industry standard quarter-brick pin-out configuration
• Size: 0.96 x 2.3” (24.4x58.4mm), height: 0.539" (13.69mm)
• Total Baseplate weight: 1.69 oz (47.9 g)
Protection Features
• Input under-voltage lockout and over-voltage shutdown protects
against abnormal input voltages
• Output current limit and short circuit protection (auto recovery)
• Output over-voltage protection
• Thermal shutdown
Safety Features
• UL 60950-1:2007/R:2011-12
• EN 60950-1:2006/A2:2013
• CAN/CSA C22.2 No. 60950-1:2007/A1:2011
Contents
Page No.
Electrical Characteristics. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3
Standards Compliance & Qualification Testing . . . . . . . . . . . . . . . . . . . . 5
Technical Figures . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
Applications Section. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
Ordering Information. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13
Product # BQ55090EZB48
Phone [phone]
www.synqor.com
Doc.# 005-0006251 Rev. C
02/17/16
Page 1