Technical
Specification
PQ24018QGx25
18 - 36V
Continuous Input
1.8V
Outputs
25A
Current
45W
Max Power
2000V dc Quarter-brick
Isolation
DC-DC Converter
The PQ24018QGx25 PowerQor Giga quarter-brick
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 power dissipated by the converter
is so low that a heatsink is not required, which saves cost,
weight, height, and application effort. All of the power and
control components are mounted to the multi-layer PCB
substrate with high-yield surface mount technology. Since
the PowerQor converter has no explicit thermal connections,
it is extremely reliable. RoHS Compliant, see last page.
PQ24018QGx25 Module
Protection Features
Operational Features
• High efficiency, >84% at full rated load current
• Delivers up to 25 amps of output current with minimal derating
- no heatsink required
• Input under-voltage lockout disables converter at low input
voltage conditions
• Output current limit and short circuit protection protects converter
from excessive load current or short circuits
• Wide input voltage range: 18V - 36V meets or exceeds all 24V
bus standards
• Output over-voltage protection protects load from damaging voltages
• Thermal shutdown protects converer from abnormal
• Fixed frequency switching provides predictable EMI performance
• No minimum load requirement means no preload resistors required.
Mechanical Features
Safety Features
• Industry standard pin-out configuration
• UL 60950-1:R2011-12
• Standard Size Open Frame:1.45" x 2.30" (36.8 x 58.4mm)
• Open Frame height: .40” (10.2mm),
• EN60950-1/A12:2011
• CAN/CSA-C22.2 No. 60950-1/A1:2011
• Open Frame Weight: 1.2 oz. (34g)
• Flanged pins designed to permit surface mount soldering
(avoid wave solder) using FPiP technique on Open Frame Units
Control Features
Contents
Page No.
Mechanical Diagrams . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2
Electrical Characteristics. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
Figures . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
Application Section . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .10
Ordering Information. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .16
• On/Off control referenced to input side
(positive and negative logic options are available)
• Remote sense for the output voltage compensates for output
distribution drops
• Output voltage trim permits custom voltages and voltage margining
Product # PQ24018QGx25
Phone 1-888-567-9596
www.synqor.com
Doc.# 005-2QG218D Rev. B
04/09/13
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