Technical
S pecification
PQ55530HEB08
48V in
Input
53Vout
Output
7.6Amp
Current
2250Vdc
Isolation
Half-brick
DC/DC Conver ter
Th e P Q55 530HEB0 8 P owerQo r
®
Exa conver ter is an iso -
l a te d, fixed swit c hin g fr eq ue nc y DC /DC co nv er t er t ha t u s es
s y nc hr on ou s r ect ifi ca ti on t o ac hiev e e xtr eme ly high effic ien cy
a n d p ower d ens ity . Th is m od ul e is ide al ly s uited to s up p or t
th e IEEE 80 2.3 af sta nd ar d for P ower Ov er LAN a n d Vo IP
a p pl ica tion s. Th e 5 3Vo ut mod ul es fe atu re 2, 25 0Vd c iso la -
tio n and lo w comm on mo de no ise. T he Ex a s eri es co nver t -
e rs of fer ind u str y le ad in g u sea b le ou tpu t p ower fo r an y s tan -
dard “half-brick” module. RoHS compliant (see page 13 ).
Operational Features
• Ultra-high efficiency, 95% at full rated load current
• Delivers up to 400 Watts of output power with minimal
derating - optional open frame unit available
• Input voltage range: 38V – 55V, with 80V for 100ms
input transient capability
• Fixed frequency switching provides predictable EMI per-
formance
• On-board input and output filtering
PQ55530HEB08 Module
Pr otection 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
• Active back bias limit prevents damage to converter
from external load induced pre-bias
• Latching output over-voltage protection
• Thermal shutdown
Mechanical Features
• Industry standard half-brick pin-out configuration
• Industry standard size: 2.3” x 2.4” (58.4 x 61.0mm)
• Total height only 0.50” (12.7mm) for baseplated unit,
open-frame only 0.420” (10.67mm)
• Total weight: 4.3 oz. (123 grams) for baseplated unit,
open-frame 2.6oz. (75 grams)
Safety Features
• 2250V, 30 MW input-to-output isolation
• UL/cUL 60950-1 recognized (US & Canada), basic
insulation rating
• TUV certified to EN60950-1
• Meets 72/23/EEC and 93/68/EEC directives
• Meets UL94V-0 flammability requirements
Contr ol 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 voltage
margining
Product # PQ55530HEB08
Phone 1-888-567-9596
Doc.# 005-2HEB53P Rev. B
10/4/07
Page 1
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