Technical
Specification
PQ40120QGA08
18-75V 12.0V 8.33Amp 2000Vdc
Quarter-brick
DC/DC Converter
Input
Output
Current
Isolation
®®
The PQ40120QGA08 PowerQor Giga qquarter-brick ccon-
verter 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 iis not rrequired, wwhich ssaves ccost, wweight, hheight,
and aapplication eeffort. AAll oof tthe ppower aand ccontrol ccompo-
nents aare mmounted tto tthe mmulti-layer PPCB ssubstrate wwith hhigh-
yield surface mount technology for greater reliability. The
PQ40 mmodule ooffers aa wwide iinput vvoltage rrange tto ccover bboth
24V and 48V applications. RoHS compliant (see page 113).
PQ40120QGA08 Module
Operational Features
• High efficiency, 90% at full rated load current
• Delivers up to 8.33 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 damage and consequent haz-
ardous 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 60950-1 recognized (US & Canada), basic
insulation rating
Control Features
• TUV certified to EN60950-1
• 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 # PQ40120QGA08
Phone 1-888-567-9596
www.synqor.com
Doc.# 005-2QG128D Rev. A
5/31/07
Page 1