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UEE Series
Isolated, High-Density, Eighth-Brick
DOSA Low Pro?le DC-DC Converters
Output (V)
3.3
3.3
3.3
Current (A)
15
25
30
Nominal Input (V)
48
48
48
For ef?cient, fully isolated DC power in the smallest space, the UEE
open frame DC-DC converter series ?t in industry-standard “eighth
Typical units
brick” outline dimensions and mounting pins (on quarter-brick pinout)
or surface mount option.
FEATURES
?
? Interleaved synchronous recti?cation yields high
ef?ciency over 90%
36
? ? to 75 Vdc input range (48V nominal)
?
? Outstanding thermal performance and derating
PRODUCT OVERVIEW
?
? Low pro?le 0.40" height with 0.9" x 2.3" outline
dimensions
?
? Fully isolated, 2250 Vdc (BASIC) insulation
?
? Industry standard DOSA eighth-brick pinout and
package and surface mount (SMT) option
?
? Extensive self-protection and short circuit
features
?
? On/Off control, trim and sense functions
?
? Fully protected against temperature and voltage
limits
?
? RoHS-6 compliant
?
? UL/IEC 60950-1 and CAN/CSA C22.2 No. 60950-
1, 2nd Edition safety approvals
Units are offered with a ?xed output voltage and
current up to 30 Amps. UEEs operate over a wide
temperature range (up to +85°C at moderate
air?ow) with full rated power. Synchronous recti?er
topology yields excellent ef?ciency.
UEEs achieve these impressive mechanical and
environmental specs while delivering excellent
electrical performance in an industry standard
DOSA compatible through-hole package or surface
mount option. The unit is fully protected against
input undervoltage, output overcurrent and short
circuit. An on-board temperature sensor shuts
down the converter if thermal limits are reached
and automatically restarts the converter when the
fault is removed.
An On/Off control input enables phased startup
and shutdown in multi-voltage applications. UEEs
include a Sense input to correct for ohmic losses. A
trim input may be connected to a user’s adjustment
potentiometer or trim resistors for output voltage
calibration.
UEEs include industry-standard safety certi?-
cations and BASIC I/O insulation provides input/
output isolation to 2250V. Radiation and conducted
emission testing is performed to widely accepted
EMC standards.
F1
External
DC
Power
Source
+Vin (1)
On/Off
Control
(2)
Open = On
logic)
-Vin (3)
Controller
and Power
Barrier
Reference and
Error Ampli ?er
+Vout (8)
Trim (6)
-Vout (4)
Figure 1. Connection Diagram
Typical topology is shown. Murata Power Solutions recommends an external fuse.
　
For full details go to
www.murata-ps.com/rohs
www.murata-ps.com/support
MDC_UEE_Series.C01 Page 1 of 29
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