BQ55120QZB67 Datasheet, PDF (1/13 Pages) SynQor Worldwide Headquarters – Industry standard quarter-brick pin-out configuration

Technical
Specification
BQ55120QZB67
35-55V
Continuous Input
12V
Output
67A
Current
784W
Power
2000V dc
Isolation
The BusQor® BQ55120QZx67 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 “quarter-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.
Quarter-brick
DC-DC Converter
®
Operational Features
• High efficiency, 97% at full rated load current
• Delivers 67A full power with appropiate derating
• 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
(negative logic only)
• Inherent current share (by droop method) for high current and
parallel applications.
Safety Features
• UL 60950-1/R2011-12
• EN60950-1/A2:2013
• CAN/CSA-C22.2 No. 60950-1/A1:2011
BQ55120QZB67 Model
Mechanical Features
• Industry standard quarter-brick pin-out configuration
• Size: 1.51"x 2.34" (38.4 x 59.4mm), height: 0.517" (13.13mm)
• Total Baseplate weight: 2.67 oz (75.7 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
Contents
Page No.
Baseplated Mechanical Diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2
Electrical Characteristics. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3
Compliance & Testing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
Technical Figures . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
Applications Section. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
Ordering Information. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13
Product # BQ55120QZB67
Phone [phone]
www.synqor.com
Doc.# 005-0006255 Rev. C
02/10/16
Page 1