For applications requiring improved electrical and thermal performance at reduced cost, consider DATEL’s new UCQ series “quarter brick” DC/DC power converters. These compact units measure just 1.45" x 2.3" x 0.4" (36.8 x 60.9 x 10.2 mm) and fit the industry-standard footprint. Available outputs range between 1.2V @ 30 Amps to 12V @ 8.3 Amps and accept a wide input range. The UCQ’s interleaved, synchronous-rectifier topology offers high efficiency (up to 93%), tight line and load regulation, low noise and fast step response. A single-board optimized open-frame design contributes to impressive thermal opera- tion. UCQ’s will operate up to +70°C and 100 LFM airflow with no derating. The UCQ’s feature full isolation to 2250Vdc meeting BASIC insulation requirements of UL/EN/IEC 60950-1. Input filters reduce propa- gated switching noise back to input sources. Also included is a remote On/Off switch control (with positive or negative polarity), output trim adjustable over nominal and output sense functions to reduce power lead losses. Extensive protection items avoid damage from out of limit voltages, currents and temperatures. Protection faults automatically recover using the hiccup technique. Besides safety testing to 60950-1, certifications for the UCQ include application for EMC compliance (to FCC class B), qualification testing (including HALT) and CE marking.
The UCQ series from Murata Power Solutions are low‑profile, quarter‑brick isolated DC/DC converters designed for high efficiency and compact size. They offer output voltages from 1.2 V to 12 V with currents up to 40 A, and feature an interleaved synchronous‑rectifier topology that delivers up to 93 % efficiency.
The converters provide full 2250 Vdc isolation, operate from 24 V or 48 V nominal input ranges, and are rated for temperatures from –40 °C to +85 °C (case) with optional higher limits. Detailed mechanical dimensions, pinout, and protection features such as over‑voltage, over‑current, and thermal shutdown are included.
| Output voltage range | 1.2 V to 12 V |
|---|---|
| Maximum efficiency | up to 93 % |
| Isolation voltage | 2250 Vdc |
| Input voltage range | 24 V (D24) or 48 V (D48) nominal |
The UCQ converters achieve up to 93 % efficiency.
They provide full isolation of 2250 Vdc.
Available output voltages range from 1.2 V to 12 V.