Q48T30015 DC-DC Converter Data Sheet

Category: Electronics, Other Semiconductors, Powerone

Overview

Power-One introduces the Q48T30015 DC-DC converter, a through-hole mounted power solution in the industry-standard quarter-brick format, recognized for its high performance, efficiency, and reliability. Designed primarily for telecommunications but also suitable for data communications, wireless, and server applications, this model stands out due to its unique circuit and packaging methodologies that offer superior thermal performance and ultra-high efficiency.

Key Features

The converter boasts a wide input voltage range (36-75VDC) and delivers a stable output of 1.5VDC with a high current capacity of up to 30A. It excels with an efficiency rating of 82.5% at 30A load and 84.5% at 15A, ensuring that energy consumption is minimized. Another impressive aspect is the product’s ability to maintain higher current capabilities even at elevated temperatures compared to existing quarter and half-brick converters. Furthermore, it requires no external heat sink, which, along with its low profile of 0.28 inches and light weight of 1 ounce, minimizes airflow shadowing, therefore enhancing the cooling performance for other adjacent components.

Design and Certification

Complying with RoHS regulations, the converter makes use of 100% surface-mount technologies which contribute to its exceptional quality and robustness. The device fulfills the basic insulation requirements as per EN60950 and includes a range of safety features such as protection mechanisms, on-board LC input filter, fixed-frequency operation, and remote output sense. The output voltage can be adjusted with a trim range of +10% to -20%, controllable via industry-standard equations.

Reliability and Standards Compliance

The Q48T30015 is designed for high reliability, with a calculated Mean Time Between Failures (MTBF) of 2.6 million hours as per Telcordia TR-332. It is UL 60950 recognized in the U.S. and Canada, DEMKO certified per IEC/EN 60950, and meets the flammability rating of UL94, V-0. For emissions, it complies with the FCC Class B and EN55022 Class B standards when used with an external filter.

Performance Metrics

In terms of performance, the converter’s effective heat management is evidenced by its ability to maintain optimal MOSFET temperatures under varying airflow conditions as showcased in the provided graph (Fig. 1). This graph illustrates the allowable load current relative to ambient air temperature and airflow rate, ensuring that designers understand the thermal dynamics for various use case scenarios.

Conclusion

The Power-One Q48T30015 converter brings together the dual benefits of compactness and power delivery in environments where space and efficiency are at a premium. With its compliance to multiple safety and performance standards, it offers a dependable choice for advanced electronic systems across a range of applications.