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UCQ-3.3-35-D24NBCY Datasheet(PDF) 1 Page - Murata Manufacturing Co., Ltd. |
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UCQ-3.3-35-D24NBCY Datasheet(HTML) 1 Page - Murata Manufacturing Co., Ltd. |
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1 / 16 page  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. FEATURES n Standard quarter-brick package/pinout n Low cost; Low profile, 0.4" (10.2mm) n 24V or 48V nominal input n Outputs: 1.2V to 12V n Interleaved synchronous-rectifier topology • Ultra high efficiency • No output reverse conduction n Outstanding thermal performance n On/off control, trim & sense functions n Fully isolated, 2250Vdc (BASIC) n Output overvoltage protection n Fully I/O protected; Thermal shutdown n Designed to meet UL/EN/IEC60950-1 safety approvals n Qual/HALT/EMI tested PRODUCT OVERVIEW Typical topology may vary between units. Typical units –VIN (1) +VIN (3) OPTO ISOLATION PWM CONTROLLER REFERENCE & ERROR AMP INPUT UNDERVOLTAGE, INPUT OVERVOLTAGE, AND OUTPUT OVERVOLTAGE COMPARATORS * Can be ordered with positive (standard) or negative (optional) polarity. REMOTE ON/OFF CONTROL* (2) +SENSE (7) –SENSE (5) +VOUT (8) VOUT TRIM (6) –VOUT (4) SWITCH CONTROL Figure 1. Simplified Schematic Single Output UCQ Models Low-Profile, Quarter Brick, 8.3-40 Amp Isolated DC/DC Converters For full details go to www.murata-ps.com/rohs www.murata-ps.com Technical enquiries email: sales@murata-ps.com, tel: +1 508 339 3000 MDC_UCQ Models.B07 Page 1 of 16 |
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