DC-DC Converter










DC-DC Converter

Product Details

The PQ55530HEB08 PowerQor® Exa converter is an isolated, fixed switching frequency DC/DC converter that uses synchronous rectification to achieve extremely high efficiency and power density. This module is ideally suited to support the IEEE 802.3af standard for Power Over LAN and VoIP applications. The 53Vout modules feature 2,250Vdc isolation and low common mode noise. The Exa series converters offer industry leading useable output power for any standard “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 performance
• On-board input and output filtering

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)

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

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

Protection 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