Technical Specification
Brick
Half
48Vin 3.3Vout 50A
50 Amp, No Heatsink, Isolated DC/DC Converter
The PQ60033HTA50 PowerQor™ Tera converter
is a next-generation, board-mountable, isolated,
fixed switching frequency DC/DC converter that uses
synchronous rectification toachieve extremely high
conversion efficiency. The power dissipated by the
converter is so low that a heatsink is not required,
which saves cost, weight, height, and application effort.
The Tera series converters offer the maximum useable
output current for any standard “half-brick” module.
The Tera units also feature active current sharing for
N+1 and parallel applications.
PQ60033HTA50 Module
Operational Features
• Ultra-high efficiency, 91% at full rated load current
• Delivers up to 50 amps of output current with mini-
mal derating - no heatsink required
• Wide input voltage range: 35V – 75V, with 100V
100ms input voltage transient withstand
• Fixed frequency switching provides predictable EMI
performance
Protection Features
• Input under-voltage lockout disables converter at
low input voltage conditions
• Output current limit and short circuit protection
• Output over-voltage protection
• Thermal shutdown
Mechanical Features
• Industry standard half-brick pin-out configuration
• Industry standard footprint: 2.3” x 2.4”
• Total height only 0.43”, permits better airflow and
smaller card pitch
• Total weight: 2.6 oz. (75 grams)
Control 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
(Full-Feature modules)
Active current share for N+1 and parallel applications
External Clock Synchronization pin for better EMI
characteristics
Startup Synchronization pin for more consistent start-
up sequence
ORing FET drive supply for efficient ORing protection
4/11/03
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Safety Features
• 2000V, 10 MΩ input-to-output isolation
• UL/cUL 60950 recognized (US & Canada), basic
insulation rating
• TUV certified to EN60950
• Meets 72/23/EEC and 93/68/EEC directives
• Meets UL94V-0 flammability requirements
Product # PQ60033HTA50
Phone 1-888-567-9596
Optional Features
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Doc.# 005-2HT633F Rev. A