Product # PQ55540HTL05

Phone 1-888-567-9596

www.synqor.com

Doc.# 005-2HT554F Rev. A

04/20/06

Page 1

T

echnical

S

pecification

PQ55540HTL05

PQ55540HTL05

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PQ55540HTL05 Module

38-55V

38-55V

54V

54V

275W

275W

2250Vdc

2250Vdc

Half-brick

Half-brick

Input

Input

Output

Output

Power

Power

Isolation

Isolation

DC/DC Conver

ter

• Ultra-high efficiency, 93% at full rated load current

• Delivers up to 275 Watts of output power with mini-

mal derating - no heatsink required

• Input voltage range: 38V – 55V suitable for 48V bus

applications

• Fixed frequency switching provides predictable EMI

performance

Operational Features

Operational Features

• Input under-voltage lockout disables converter at low

input voltage conditions

• Output current limit and short circuit shutdown protects

converter and load from permanent damage

• Active back bias limit prevents damage to converter

from external load induced pre-bias

• Output over-voltage protection

• Thermal shutdown

Pr

otection 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

Contr

ol Features

• 2250V, 30 M

Ω

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

Safety Features

Safety Features

• Industry standard half-brick pin-out configuration

• Industry standard size: 2.3” x 2.4” (58.4 x 61.0mm)

• Total height only 0.34” (8.7mm), permits better airflow

and smaller card pitch

• Total weight: 2.6 oz. (75 grams)

Mechanical Features

Mechanical Features