Technical
Specification
PQ40050QGA20
18-75V
Input
5.0V
Output
20Amp 2000Vdc
Quarter-brick
DC/DC Converter
Current
Isolation
™
The PQ40050QGA20 PowerQor Giga quarter-brick
converter is a next-ggeneration, board-mmountable, isolated,
fixed switching frequency DC/DC converter that uses syn-
chronous rrectification tto aachieve eextremely hhigh cconver-
sion efficiency. TThe power dissipated by the converter is
so llow tthat aa hheatsink iis nnot rrequired, wwhich ssaves ccost,
weight, height, and application effort. All of the power
and ccontrol ccomponents aare mmounted tto tthe mmulti-llayer
PCB ssubstrate wwith hhigh-yyield ssurface mmount ttechnology ffor
greater reliability. The PQ40 module offers a wide input
voltage rrange tto ccover bboth 224V aand 448V aapplications.
PQ40050QGA20 Module
Operational Features
• High efficiency, 89% at full rated load current
• Delivers up to 20 amps of output current (100W) with
Protection Features
minimal derating - no heatsink required
• Input under-voltage lockout disables converter at low
input voltage conditions
• Ultra wide input voltage range: 18V – 75V, with 100V
100ms input voltage transient capability
• Output current limit and short circuit protection protects
converter and load from permanent damage and conse-
quent hazardous conditions
• Fixed frequency switching provides predictable EMI per-
formance
• No minimum load requirement means no preload resis-
tors required
• Active back bias limit prevents damage to converter
from external load induced pre-bias
• Output over-voltage protection protects load from dam-
aging voltages
Mechanical Features
• Thermal shutdown protects converter from abnormal
• Industry standard quarter-brick pin-out configuration
• Industry standard size: 1.45” x 2.3” (36.8x58.4mm)
environmental conditions
• Total height only 0.43” (10.9mm), permits better airflow
and smaller card pitch
• Total weight: 1.2 oz. (34 grams)
Safety Features
• 2000V, 30 MΩ input-to-output isolation provides
• Flanged pins designed to permit surface mount solder-
input/output ground separation
ing (avoid wave solder) using FPiP technique
• UL/cUL 60950 recognized (US & Canada), basic
insulation rating
Control Features
• TUV certified to EN60950
• On/Off control referenced to input side (positive and
negative logic options are available)
• Meets 72/23/EEC and 93/68/EEC directives which
facilitates CE Marking in user’s end product
• Remote sense for the output voltage compensates for
• Board and plastic components meet UL94V-0 flamma-
bility requirements
output distribution drops
• Output voltage trim permits custom voltages and volt-
age margining
Product # PQ40050QGA20
Phone 1-888-567-9596
www.synqor.com
Doc.# 005-2QG350D Rev. A
11/8/04
Page 1