Overview
The Q48525015 surface-mounted DC-DC converter is highlighted for its innovative performance that surpasses industry standards for quarter brick format converters. Utilizing cutting-edge patent-pending circuit and packaging methods, the converter achieves ultra-high efficiency and exceptional thermal performance with a notably slim profile. This product is key for applications in the telecommunications sector where it exceeds thermal performance benchmarks set by current quarter and half-brick converters, without the need for a heat sink and minimizing airflow obstruction.
Product Compliance
The converter aligns with RoHS requirements, offering both lead-free solder and lead-solder-exempted variants.
Key Features
- Performance: Capable of delivering up to 25A and attains higher current capability at 70°C, outpacing existing quarter and half-brick converters.
- Efficiency: Boasting an efficiency rate of 83.5% for 25A and 12.5A.
- Start-Up & Load: Supports start-up into pre-biased outputs without requiring a minimum load.
- Design: Features a low body profile of 0.26 inches and a light weight of approximately 28g, with a standard industry footprint of 1.45″ x 2.30″.
- Safety & Regulation: Meets EN60950 Basic Insulation Requirements, endures 100V input transients for 100ms, and includes an on-board LC input filter for fixed-frequency operation.
- Protection & Control: Fully protected with remote output sense and an output voltage trim range of +10%/-20%.
- Reliability: Exhibits high reliability with a Mean Time Between Failures (MTBF) of 2.6 million hours as per Telcordia TR-332 calculations.
- Operation: Capable of both positive or negative logic ON/OFF options.
- Certifications: UL 60950 recognized in the U.S. & Canada, and DEMKO certified per IECIEN 60950, in addition to meeting FCC Class B and EN55022 Class B emissions with an external filter.
- Material Safety: All materials meet the UL94 V-0 flammability rating.
Thermal Performance Graph
Figure 1 illustrates the relationship between the available load current versus ambient air temperature and airflow rates. The data depict how the Q48525015 mounted vertically can successfully operate under different conditions while keeping MOSFET temperatures below 120°C, at an input voltage of 54V.
Applications
The converter is suitable for a diverse range of applications, including telecommunications, data communications, wireless networks, and server environments.
Revision Date
This data sheet was initially released on April 29, 2003, and has since been revised as of November 20, 2006.
For further details and specifications, please refer to the complete document located at www.power-one.com.
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