UCP Models
www.murata-ps.com
UL/EN Approved "Half-Brick" 40-75 Watt, DC/DC Converters
Single Output
NOT RECOMMENDED
FOR NEW DESIGNS
UCP Models
UL/EN Approved, "Half-Brick"
40-75 Watt, DC/DC Converters
This product is not RoHS compliant.
The high efficiency, low noise and long-term reliability that defines DATEL
DC/DC Converters now comes to you in the standard "half-brick" configuration (2.3"
x 2.4" x 0.52"). All models in our new UCP Series meet UL/EN60950 safety require-
ments, including each European country’s deviations. A CB Test Certificate/Report
is available. All models have BASIC insulation; guarantee 1500Vdc isolation; and
because they are designed with Class B thermal insulation, satisfy all safety require-
ments over their full operating temperatures.
UCP Models are designed for demanding telecom, datacom and networking
applications. Their "semi-synchronous-rectifier" design (400kHz switching) achieves
impressive efficiencies (up to 88%). Output voltages are 12 or 15 Volts. Input
voltage ranges are 10-18V ("D12" models), 18-36V ("D24" models) or 36-75V
("D48" models). "D48" models meet the Low Voltage Directive (LVD) and carry the
CE mark.
Features
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Standard "half-brick" configuration
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UL/EN60950 safety approvals
(BASIC insulation)
mark for "D48" models
(36-75V inputs)
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Fully isolated, 1500Vdc guaranteed
Output voltages: 12 or 15 Volts
VIN ranges: 10-18V, 18-36V, 36-75V
Full 40-75 Watt output power
For high reliability and affordability, DATEL utilizes high-speed automatic assem-
bly to construct the UCP’s proven SMT-on-pcb designs. All models have been rigor-
ously qualified (including a 500-hour life test) and EMC characterized. Devices are
housed in metal cases (with non-conductive baseplates) that incorporate threaded
inserts for add-on heat sinks and/or pcb mounting.
Reliable SMT-on-pcb construction
Input under and overvoltage shutdown
Output current limiting and
short-circuit protection
UCP’s feature input pi filters, input undervoltage and overvoltage lockout, output
current limiting, short-circuit protection, and thermal shutdown. Additionally, all
devices have output trim capability and an on/off control pin that can be ordered
with either polarity. We can easily modify standard-product UCP’s to meet your
application-specific requirements.
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On/off, VOUT trim and sense functions
Modifications and customs for OEM’s
➁
+VIN
(4)
+VOUT
(5)
10Ω
SWITCH
CONTROL
+SENSE
(6)
➁
–VOUT
(9)
➂
10Ω
–SENSE
(8)
–VIN
(1)
PWM
CONTROLLER
OPTO
ISOLATION
REFERENCE &
ERROR AMP
TRIM
(7)
UVLO & OVLO
COMPARATORS
➀
➁
The On/Off Control function can be ordered with either positive (standard) or negative polarity.
12V- and 15V-output models have a standard forward architecture in which this FET is replaced
with a Schottky diode.
➀
ON/OFF
CONTROL
(3)
Figure 1. Simplified Schematic
Typical topology is shown
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Technical enquiries email: sales@murata-ps.com, tel: +1 508 339 3000
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