• Home
• >
• Products
• >
• Literature
• >
• Wide Input, Isolated Eighth-Brick DC/DC Converters | Murata-PS

With dimensions of only 0.9 by 2.3 by 0.38 inches, the UWE series open frame DC/DC converters deliver up to 75 Watts in an industry-standard “eighth-brick” through-hole package. This format can plug directly into quarter-brick pinouts. Several standard fixed-output voltages from 3.3 Vdc to 24 Vdc assure compatibility in embedded equipment, CPU cards and instrument subsystems. The extended 4-to-1 input power range (9-36V) is ideal for battery-powered, telecom or portable applications. Very high efficiency means no fans or temperature deratings in many applications. An optional thermal mounting baseplate extends operation into most conceivable environments.

The synchronous rectifier design uses the maximum available duty cycle for greatest efficiency and low power dissipation with no reverse output conduction. Other features include low on-resistance FET’s, planar magnetics and heavycopper PC boards. These deliver low output noise, tight line/load regulation, stable no-load operation and fast load step response. All units are precision assembled in a highly automated facility with ISO-traceable manufacturing quality standards. Isolation of 2250 Volts (Q48 models) assures safety and fully differential (floating) operation for greatest application flexibility. On-board Sense inputs compensate for line drop errors at high output currents. Outputs are trimmable within ±10% of nominal voltage. The UWE series are functionally complete.

A wealth of protection features prevents damage to both the converter and outside circuits. Inputs are protected from undervoltage and outputs feature short circuit protection, overcurrent and excess temperature shut down. Overloads automatically recover using the “hiccup” technique upon fault removal. The UWE is certified to standard safety and EMI/RFI approvals. All units meet RoHS-6 hazardous materials compliance.

Features & Benefits:

• Industry-standard through-hole eighth-brick package with 0.9" x 2.3" x 0.38" outline dimensions
• Choice of two wide input ranges, 9-36 Vdc or 18-75 Vdc
• Fixed output from 3.3 to 24 Volts DC up to 75 Watts
• Synchronous rectification yields very high efficiency and low power dissipation
• Operating temperature range from -40 to +85˚C with derating
• Up to 2250 Volt DC isolation (Q48 models)
• Outstanding thermal performance and derating
• Extensive self-protection, overtemperature and overload features with no output reverse conduction
• On/Off control, trim and remote sense functions
• Certified to UL/EN/IEC 60950-1, CAN/CSA-C22.2 No. 60950-1, 2nd Edition, safety approvals and EN55022/CISPR22 standards
• Pre-bias operation for startup protection

Additional Information:

• Datasheet (PDF)