
T
Technical
echnical
S
Specification
pecification
PQ48033QGA25
Product # PQ48033QGA25
Phone 1-888-567-9596
Doc.# 005-2QG433D Rev. E
09/08/05
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1PQ48033QGA25 Module
48V
48V in
in
3.3V
3.3Vout
out
25Amp
2000Vdc
Quar
Quar ter-brick
ter-brick
Input
Output
Current
Isolation
DC/DC Conver
DC/DC Conver ter
ter
Ultra-high efficiency, >88% at full rated load current
Delivers up to 25 amps of output current with minimal
derating - no heatsink required
Wide input voltage range: 35V – 75V meets or
exceeds all 48V bus standards
Fixed frequency switching provides predictable EMI per-
formance
No minimum load requirement means no preload resis-
tors required
Operational Features
Input under-voltage lockout disables converter at low
input voltage conditions
Output current limit and short circuit protection protects
converter and load from permanent damage and conse-
quent hazardous conditions
Active back bias limit prevents damage to converter
from external load induced pre-bias
Output over-voltage protection protects load from dam-
aging voltages
Thermal shutdown protects converter from abnormal
environmental conditions
Pr
Protection Features
otection Features
2000V, 30 M
input-to-output isolation provides
input/output ground separation
UL/cUL 60950 recognized (US & Canada), basic
insulation rating
TUV certified to EN60950
Meets 72/23/EEC and 93/68/EEC directives which
facilitates CE Marking in user’s end product
Board and plastic components meet UL94V-0 flamma-
bility requirements
Safety Features
Industry standard quarter-brick pin-out configuration
Industry standard size: 1.45” x 2.3” (36.8x58.4mm)
Total height less than 0.40” (10.2mm), permits better
airflow and smaller card pitch
Total weight: 1.2 oz. (34 grams)
Flanged pins designed to permit surface mount solder-
ing (avoid wave solder) using FPiP technique
Mechanical Features
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 volt-
age margining
Contr
Control Features
ol Features