Technical
Specification
PQ55530HEB08
48Vin 53Vout 7.6Amp 2250Vdc
Half-brick
DC/DC Converter
Input
Output
Current
Isolation
®®
The PPQ55530HEB08 PPowerQor Exa cconverter iis aan iiso-
lated, ffixed sswitching ffrequency DDC/DC cconverter tthat uuses
synchronous rectification to achieve extremely high efficiency
and ppower ddensity. TThis mmodule iis iideally suited tto ssupport
the IIEEE 8802.3af sstandard ffor PPower OOver LLAN aand VVoIP
applications. TThe 553Vout mmodules ffeature 22,250Vdc iisola-
tion aand llow ccommon mmode nnoise. TThe EExa sseries cconvert-
ers offer industry leading useable output power for any stan-
dard ““half-brick” mmodule. RRoHS ccompliant ((see ppage 113).
Operational Features
• Ultra-high efficiency, 95% at full rated load current
• Delivers up to 400 Watts of output power with minimal
PQ55530HEB08 Module
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-
Protection Features
formance
• On-board input and output filtering
• 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
Mechanical Features
• Industry standard half-brick pin-out configuration
• Latching output over-voltage protection
• Thermal shutdown
• 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 MΩ input-to-output isolation
• UL/cUL 60950-1 recognized (US & Canada), basic
Control Features
insulation rating
• On/Off control referenced to input side (positive and
negative logic options are available)
• TUV certified to EN60950-1
• Meets 72/23/EEC and 93/68/EEC directives
• Meets UL94V-0 flammability requirements
• 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
www.synqor.com
Doc.# 005-2HEB53P Rev. B
10/4/07
Page 1