LAST TIME BUY: AUGUST 31, 2014. CLICK HERE FOR OBSOLESCENCE NOTICE OF FEBRUARY 2014.
www.murata-ps.com
Single Output UCQ Models
Low-Profile, Quarter Brick, 8.3-40 Amp
Isolated DC-DC Converters
NOT RECOMMENDED
FOR NEW DESIGNS
FEATURES
Standard quarter-brick package/pinout
cost; Low profile, 0.4" (10.2mm)
Low
or 48V nominal input
24V
Outputs: 1.2V to 15V
Interleaved synchronous-rectifier topology
• Ultra high efficiency
• No output reverse conduction
Outstanding thermal performance
On/off control, trim & sense functions
isolated, 2250Vdc (BASIC)
Fully
Output overvoltage protection
I/O protected; Thermal shutdown
Fully
Designed to meet UL/EN/IEC60950-1
safety approvals
Typical units
PRODUCT OVERVIEW
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 15V @ 6.7 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 logic), 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 in-
clude application for EMC compliance (to EN55022/
CISPR22 with filter), qualification testing.
+SENSE
(7)
+V
OUT
(8)
+V
IN
(1)
SWITCH
CONTROL
–V
OUT
(4)
–V
IN
(3)
–SENSE
(5)
PWM
CONTROLLER
OPTO
ISOLATION
REFERENCE &
ERROR AMP
V
OUT
TRIM
(6)
INPUT UNDERVOLTAGE, INPUT
OVERVOLTAGE, AND OUTPUT
OVERVOLTAGE COMPARATORS
REMOTE
ON/OFF
CONTROL*
(2)
* Can be ordered with positive (standard) or negative (optional) polarity.
Figure 1. Simplified Schematic
For full details go to
www.murata-ps.com/rohs
Typical topology may vary between units.
www.murata-ps.com/support
MDC_UCQ Models.D01
Page 1 of 24
Single Output UCQ Models
Low-Profile, Quarter Brick, 8.3-40 Amp
Isolated DC-DC Converters
PERFORMANCE SPECIFICATIONS SUMMARY AND ORDERING GUIDE
➀
Output
R/N (mVp-p)
V
OUT
I
OUT
Power
(Volts) (Amps) (Watts) Typ. Max.
1.2
1.2
1.5
1.5
1.8
1.8
2.5
2.5
3.3
3.3
3.3
3.3
5
5
5
12
15
40
30
25
40
30
40
40
30
35
20
30
40
20
20
25
8.3
6.7
48
36
37.5
60
54
72
100
75
115.5
66
99
132
100
100
125
99.6
100.5
50
50
50
80
50
80
50
80
50
50
60
50
35
50
100
100
100
80
100
100
100
120
100
120
80
80
100
60
55
100
150
150
Regulation (Max.)
➁
Line
Load
V
IN
Nom.
(Volts)
Input
I
IN
full
Range
I
IN
no
load
(Volts) load (mA) (Amps)
Efficiency
Min.
81%
81%
85%
83%
86%
82%
85%
87%
88.5%
89.5%
89%
88%
89%
88%
90%
90%
Typ.
83%
83%
86%
86%
88%
84%
87%
89%
90%
91%
90%
91.5%
92%
90%
91%
92%
OBSOLETE
OBSOLETE
OBSOLETE
OBSOLETE
OBSOLETE
OBSOLETE
OBSOLETE
OBSOLETE
OBSOLETE
OBSOLETE
OBSOLETE
OBSOLETE
*
*
*
*
*
*
*
*
*
*
*
*
*
OBSOLETE
Root Models
➀
UCQ-1.2/40-D24P-C
UCQ-1.2/30-D48N-C
UCQ-1.5/25-D48N-C
UCQ-1.5/40-D48N-C
UCQ-1.8/30-D48N-C
UCQ-1.8/40-D48N-C
UCQ-2.5/40-D24P-C
UCQ-2.5/30-D48N-C
UCQ-3.3/35-D24P-C
UCQ-3.3/20-D48N-C
UCQ-3.3/30-D48N-C
UCQ-3.3/40-D48N-C
UCQ-5/20-D24P-C
UCQ-5/20-D48N-C
UCQ-5/25-D48N-C
UCQ-12/8.3-D48N-C
UCQ-15/6.7-D48N-C
Please contact Murata Power Solutions for further information.
±0.125%
±0.25%
48
36-75
30
0.90
±0.125%
±0.25%
48
36-75
50
0.94
±0.125%
±0.25%
48
36-75
50
1.45
±0.125%
±0.25%
48
36-75
45
1.31
±0.1%
±0.2%
48
36-75
30
1.70
±0.125%
±0.25%
24
18-36
120
4.96
±0.125%
±0.25%
48
36-75
50
1.80
±0.25%
±0.25%
24
18-36
130
5.41
±0.125%
±0.25%
48
36-75
50
1.53
±0.125%
±0.25%
48
36-75
50
2.3
±0.1%
±0.2%
48
36-75
30
3.06
±0.125%
±0.25%
24
18-36
160
4.55
±0.125%
±0.25%
48
36-75
80
2.26
±0.125%
±0.25%
48
36-75
30
2.89
±0.125%
±0.25%
48
36-75
80
2.28
±0.125%
±0.25%
48
36-75
100
2.28
*
LAST TIME BUY: AUGUST 31, 2014. CLICK HERE FOR OBSOLESCENCE NOTICE OF FEBRUARY 2014.
As of September 2014, ONLY the following part numbers will be available: UCQ-3.3/30-D48N-C; UCQ-3.3/30-D48NB-C;
UCQ-5/20-D48N-C; UCQ-5/20-D48NB-C; UCQ-5/25-D48N-C; UCQ-5/25-D48NB-C; UCQ-12/8.3-D48N-C;
UCQ-12/8.3-D48NB-C
➀
Please refer to the part number structure for additional ordering part numbers and options.
➁
All specifications are at nominal line voltage and full load, +25 deg.C unless otherwise noted. See detailed specifications. Output capacitors are 1 μF ceramic || 10 μF electrolytic. I/O caps are necessary for
our test equipment and may not be needed for your application.
Outline dimensions:
2.3 × 1.45 × 0.40 inches
58.4 × 36.8 × 10.2 mm
Pinout: P32
(all models)
PART NUMBER STRUCTURE
Output
Configuration:
Unipolar,
single output
U CQ
-
3.3
/
30
-
D48 N B
H Lx
-
C
RoHS Hazardous Materials compliance
C
= RoHS-6, standard (does not claim EU RoHS exemption 7B–lead in solder)
Y
= RoHS-5 (with lead), optional, special order
Pin length option
Blank
= standard pin length 0.180 in. (4.6 mm)
L1
= 0.110 in. (2.79 mm)*
L2
= 0.145 in. (3.68 mm)*
Conformal coating
(optional)
Blank
= no coating, standard
H
= coating added, optional special order
Baseplate
(optional)
Blank
=
No baseplate
, standard
B
=
Baseplate installed
, optional special order
On/Off Control Logic
P
=
Positive logic (standard for D24, optional for D48)
N
=
Negative logic (standard for D48, optional for D24)
*Special quantity order is required;
no sample quantities available.
Note:
Some model number combinations
may not be available. Please contact
Murata Power Solutions.
Quarter-Brick Package
Nominal Output Voltage
Maximum Rated Output :
Current in Amps
Input Voltage Range:
D24 = 18-36 Volts (24V nominal)
D48 = 36-75 Volts (48V nominal)
www.murata-ps.com/support
MDC_UCQ Models.D01
Page 2 of 24
Single Output UCQ Models
Low-Profile, Quarter Brick, 8.3-40 Amp
Isolated DC-DC Converters
FUNCTIONAL SPECIFICATIONS
UCQ-1.2/30-D48 UCQ-1.5/25-D48 UCQ-1.5/40-D48 UCQ-1.8/30-D48 UCQ-1.8/40-D48
Input
Input voltage range
Start-up threshold, Volts
Undervoltage
shutdown, V
Overvoltage shutdown
Reflected (back) ripple
current, mA pk-pk
Input Current
Full load conditions
Inrush transient, A
2
sec
Output short circuit, mA
Low line (V
IN
= min.),
Amps
Standby mode, mA
(Off, UV, OT shutdown)
Internal input filter type
Reverse polarity
protection
Remote On/Off Control
Positive logic
(P model suffix)
Negative logic
(N model suffix)
Current, mA
Output
Voltage output range
Voltage output accuracy
Adjustment range,
% of V
NOM
.
Temperature coefficient
Minimum loading
Remote sense
compensation
Ripple/noise
(20 MHz bandwidth)
Line/Load regulation
Efficiency
Maximum capacitive
loading, μF low ESR
<0.02Ω max.,
resistive load
1,000
10,000
±10%
−20 + 10
See ordering guide.
±1% of V
NOM
., (50% load)
±10%
±0.02% of V
OUT
range per °C
No minimum loading.
+10%
See ordering guide.
See ordering guide.
See ordering guide.
10,000
4,700
10,000
±10%
±10%
OFF = Ground pin to +0.8V
ON = Open or +3.5 to +13.5V max
OFF = Open or +3.5 to +13.5V
ON = Ground pin to +0.8V max
1
Pi-type
L-C
1.23
1.26
See ordering guide.
0.05
50-200, model dependent
1.96
1-10, model dependent
Pi-type
None, install external fuse.
Pi-type
Pi-type
1.74
2.30
34
33
34
32
See ordering guide.
34
32.5
none
10-30, model dependent
34
32.5
34
32
➀
Specs are typical unless noted.
www.murata-ps.com/support
MDC_UCQ Models.D01
Page 3 of 24
Single Output UCQ Models
Low-Profile, Quarter Brick, 8.3-40 Amp
Isolated DC-DC Converters
FUNCTIONAL SPECIFICATIONS
UCQ-2.5/40-D24 UCQ-2.5/30-D48 UCQ-3.3/35-D24 UCQ-3.3/20-D48 UCQ-3.3/30-D48
Input
Input voltage range
Start-up threshold, Volts
Undervoltage
shutdown, V
Overvoltage shutdown
Reflected (back) ripple
current, mA pk-pk
Input Current
Full load conditions
Inrush transient, A
2
sec
Output short circuit, mA
Low line (V
IN
= min.),
Amps
Standby mode, mA
(Off, UV, OT shutdown)
Internal input filter type
Reverse polarity
protection
Remote On/Off Control
Positive logic
(P model suffix)
Negative logic
(N model suffix)
Current, mA
Output
Voltage output range
Voltage output accuracy
Adjustment range,
% of V
NOM
.
Temperature coefficient
Minimum loading
Remote sense
compensation
Ripple/noise
(20 MHz bandwidth)
Line/Load regulation
Efficiency
Maximum capacitive
loading, μF low ESR
<0.02Ω max.,
resistive load
10,000
10,000
−20 + 10
−20 + 10
See ordering guide.
±1% of V
NOM
., (50% load)
±10%
±0.02% of V
OUT
range per °C
No minimum loading.
+10%
See ordering guide.
See ordering guide.
See ordering guide.
10,000
10,000
10,000
−10 to + 10%
OFF = Ground pin to +0.8V
ON = Open or +3.5 to +13.5V max
OFF = Open or +3.5 to +13.5V
ON = Ground pin to +0.8V max
1
Pi
L-C
6.69
2.39
See ordering guide.
0.05
50-200, model dependent
7.21
1-10, model dependent
L-C
None, install external fuse.
Pi
Pi
2.04
3.02
16.8
15
34
32
See ordering guide.
17
15
none
10-30, model dependent
35
34
35
34
➀
Specs are typical unless noted.
www.murata-ps.com/support
MDC_UCQ Models.D01
Page 4 of 24
Single Output UCQ Models
Low-Profile, Quarter Brick, 8.3-40 Amp
Isolated DC-DC Converters
FUNCTIONAL SPECIFICATIONS
UCQ-3.3/40-D48
Input
Input voltage range
Start-up threshold, Volts
Undervoltage
shutdown, V
Overvoltage shutdown
Reflected (back) ripple
current, mA pk-pk
Input Current
Full load conditions
Inrush transient, A sec
Output short circuit, mA
Low line (V
IN
= min.),
Amps
Standby mode, mA
(Off, UV, OT shutdown)
Internal input filter type
Reverse polarity
protection
Remote On/Off Control
Positive logic
(P model suffix)
Negative logic
(N model suffix)
Current, mA
Output
Voltage output range
Voltage output accuracy
Adjustment range,
% of V
NOM
.
Temperature coefficient
Minimum loading
Remote sense
compensation
Ripple/noise
(20 MHz bandwidth)
Line/Load regulation
Efficiency
Maximum capacitive
loading, μF low ESR
<0.02Ω max.,
resistive load
10,000
10,000
10,000
See ordering guide.
±1% of V
NOM
., (50% load)
−10 to + 10%
±0.02% of V
OUT
range per °C.
No minimum loading.
+10%
See ordering guide.
See ordering guide.
See ordering guide.
10,000
1,000
1000
OFF = Ground pin to +0.8V
ON = Open or +3.5 to +13.5V max
OFF = Open or +3.5 to +13.5V
ON = Ground pin to +0.8V max
1
OFF = Ground pin or to +1V.
ON = Open or +2.5 to +13.5V
OFF = Open or +2.5 to +13.5V
ON = Ground pin or to +1V.
Pi
L-C
L-C
2
UCQ-5/20-D24
UCQ-5/20-D48
UCQ-5/25-D48
UCQ-12/8.3-D48
UCQ-15/6.7-D48N-C
See ordering guide
33
31.5
17
16
35
34
35
34
none
10-30, model dependent.
60 max.
35
34
34
31.5
See ordering guide.
0.1
1200
4.12
6.04
0.05
50-200, model dependent
3.02
3.82
1-10, model dependent
L-C
None, install external fuse.
L-C
Pi
3.04
0.03
120
3.03
➀
Specs are typical unless noted.
www.murata-ps.com/support
MDC_UCQ Models.D01
Page 5 of 24
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