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UCH-3.3/35-D24PB-C

P1-P3P4-P6P7-P9P10-P12P13-P15P16-P18
Figure 1. Simplifi ed Schematic
–VIN
(1)
+V
IN
(4)
CASE
(2)
REMOTE*
ON/OFF
CONTROL
(3)
PMW
CONTROLLER
OPTO
ISOLATION
REFERENCE &
ERROR MAP
SWITCH
CONTROL
INPUT UNDERVOLTAGE, INPUT
OVERVOLTAGE, AND OUTPUT
OVERVOLTAGE COMPARATORS
+V
OUT
(5)
–V
OUT
(9)
V
OUT
TRIM
(7)
+SENSE
(6)
–SENSE
(8)
Typical topology is shown.
*Can be ordered with positive (standard)
or negative (optional) polarity.
Typical Unit
FEATURES

Standard “half-brick” confi guration

Certifi ed to UL-60950-1, CSA-C22.2 No.
60950-1, IEC\EN 60950-1, 2nd edition
(some models pending)

Fully isolated, 2250Vdc guaranteed

Output voltages: 1.8 – 15 Volts

VIN range: 36-75V or 18-36V

Full 50-150 Watt output power

Reliable SMT-on-pcb construction
Input under and output overvoltage shutdown

Output current limiting and short-circuit
protection

On/off, VOUT trim and sense functions

Modifi cations and customs for OEMs

RoHS-6 construction/attach
The high effi ciency, low noise and long-term reli-
ability that defi nes Murata Power Solutions’ DC/
DC Converters now comes to you in the standard
“half-brick” confi guration (2.3˝ x 2.4˝ x 0.40˝).
Our new UCH Series is certifi ed to UL/EN60950-
1 safety requirements (some models pending),
including each European country’s deviations. All
models have BASIC insulation; guarantee 2250Vdc
(in to out) isolation; and because they are designed
with Class B thermal insulation, satisfy all safety
requirements over their full operating tempera-
tures. Construction/attach meets stringent RoHS-6
specifi cations.
UCH Models are designed for demanding tele-
com, datacom and networking applications. Their
“semi-synchronous-rectifi er” design achieves
impressive effi ciencies. Output voltages are
1.8to15 Volts. The input voltage range is 36 to 75
or 18 to 36 Volts. All models meet the Low Voltage
Directive (LVD).
For high reliability and affordability, Murata
Power Solutions utilizes high-speed automatic
assembly to construct the UCH’s proven SMT-
on-pcb designs. An optional baseplate offers full
output power at maximum temperature.
UCH’s feature input fi lters, 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 logic type.
PRODUCT OVERVIEW
Typical Unit
FEATURES
models
(i
n to o
u
with Cl
a
PR
OD
REG.-Nr. C457
(some models pending
certifi cation)
h effi cie
n
y, low noi
s
se
a
nd
hat defi nes Murata
P
Po
wer
verters
n
no
w comes
t
to
you
rick” confi guration (
2
2.
3˝ x
2
2
w UCH
Se
e
ries is cert
ifi
fi
ed
to
o
y require
m
me
nts (som
e
e
mo
d
d
ng each
E
E
uropean co
u
un
try’
h
av
e
BA
A
SI
C
su
ti
o
on
;
yp
ical U
nit
t
The hig
abil
i
t
y t
DC
C
C
on
“h
al
f-
br
Ou
r new
1
sa
a
fety
incl
u
ud
in
mo
d
de
ls
NOT RECOMMENDED
FOR NEW DESIGNS
LAST TIME BUY: AUGUST 31, 2014. CLICK HERE FOR OBSOLESCENCE NOTICE OF FEBRUARY 2014.
www.murata-ps.com
www.murata-ps.com/support
For full details go to
www.murata-ps.com/rohs
　
Single Output UCH Models
Isolated, “Half-Brick”
1.8−15V Output DC/DC Converters
MDC_UCH Models.C01 Page 1 of 18
Output
Confi guration:
Unipolar Single Output
Maximum Rated Output:
Current in Amps
Half-brick package
Nominal Output Voltage
Input Voltage Range:
D24 = 18-36 Volts
D48 = 36-75 Volts
U CH -/ D48-30 N5 B -
PART NUMBER STRUCTURE
H C
On/Off Control Logic
P = Positive logic (standard for D24, optional for D48)
N = Negative logic (standard for D48, optional for D24)
Optional Baseplate
Blank = No Baseplate, standard
B = Baseplate installed, optional quantity order
RoHS Hazardous Materials Compliance
C = RoHS-6 (does not claim EU RoHS exemption 7b–lead in solder), standard
Y = RoHS-5 (with lead), optional, special order
Note:
Some model number combinations
may not be available. Please contact
Murata Power Solutions.
Conformal Coating Option
Blank = No coating, standard
H = Coating added, optional
*
(built to order; contact Murata Power Solutions for MOQ and lead times.)
PERFORMANCE SPECIFICATIONS SUMMARY AND ORDERING GUIDE ➀
Root Family ➀
Output Input
Effi ciency
Package C61
Case
VOUT
(Volts)
IOUT
(Amps)
Power
(Watts)
R/N (mVp-p) ➁ Regulation (Max.)
VIN Nom.
(Volts)
Range
(Volts)
IIN,
no load
(mA)
IIN, full
load
(Amps)Typ. Max. Line Load Min. Typ.
inches
(mm)
UCH-1.8/40-D48N-C 1.8 40 72 50 100 ±0.125% ±0.25% 48 36-75 50 1.72 85% 87%
2.4×2.28×0.40
(61×57.9×10.2)
UCH-2.5/40-D48N-C 2.5 40 100
50
100 ±0.1% ±0.2% 48 36-75 50 2.34 87.5%
89%
UCH-3.3/10-D24P-C
3.3
10 33
80
±0.2%
±0.25%
24 18-36
100
1.54
87%
UCH-3.3/10-D48N-C 10 33 ±0.2% 48 36-75 0.77
UCH-3.3/15-D48N-C 15 49.5 ±0.125% 48 36-75 1.16
UCH-3.3/35-D24P-C 35 115.5 ±0.125% 24 18-36 5.41
UCH-3.3/30-D48N-C 30 99 ±0.125% 48 36-75 2.29 89% 90%
UCH-5/10-D48N-C
5
10 50 60 150 ±0.125% 48 36-75 1.17 85.5% 89%
UCH-5/20-D24P-C 20 100 50
100
±0.125% 24 18-36 4.6
89%
90.5%
UCH-5/30-D48N-C 30 150 60 ±0.125%
48 36-75
3.43 91%
UCH-12/4.2-D48N-C 12 4.2 50.4 80 150 ±0.125%
90
1.16 87.5% 90.5%
UCH-12/12.5-D48N-C 12 12.5 150 50
150 ±0.125%
3.37 89% 92.6%
UCH-15/6.7-D48N-C
➂
15 6.7 100.5 70 2.28 90% 92%
➀
Please refer to the full model number structure for additional ordering part numbers and options.
➁ All specifi cations are at nominal line voltage and full load, +25 °C. unless otherwise noted. See detailed specifi cations. Output capacitors are 1 µF ceramic in parallel with 10 µF electrolytic . Input cap is 22
µF, low ESR. I/O caps are necessary for our test equipment and may not be needed for your application.
➂ Pending UL and VDE certification.
Pin Length Option
Blank = Standard pin length, 0.180 inches (4.6mm)
L1 = 0.110 inches (2.79mm)
*
L2 = 0.145 inches (3.68mm)
*
LX
*
Special quantity order is required;
no sample quantities available.
OBSOLETE
*
OBSOLETE
*
OBSOLETE
*
OBSOLETE
*
OBSOLETE
*
OBSOLETE
*
OBSOLETE
*
OBSOLETE
*
OBSOLETE
*
OBSOLETE
*
As of September 2014, ONLY the following part numbers will be available: UCH-5/20-D24PB-C; UCH-12/4.2-D48N-C;
UCH-12/4.2-D48NB-C; UCH-12/12.5-D48N-C; UCH-12/12.5-D48NB-C
*
LAST TIME BUY: AUGUST 31, 2014. CLICK HERE FOR OBSOLESCENCE NOTICE OF FEBRUARY 2014.
www.murata-ps.com/support
Single Output UCH Models
Isolated, “Half-Brick”
1.8−15V Output DC/DC Converters
MDC_UCH Models.C01 Page 2 of 18
FUNCTIONAL SPECIFICATIONS ➀
UCH-1.8/40-D48 UCH-2.5/40-D48 UCH-3.3/10-D24 UCH-3.3/10-D48 UCH-3.3/15-D48 UCH-3.3/35-D24 UCH-3.3/30-D48
Input
Input voltage range See ordering guide
Start-up threshold, Volts 34 34 16 34 34 16 34
Undervoltage
shutdown, V
32 31 15 31 31 15 31
Overvoltage shutdown none
Refl ected (back) ripple cur-
rent, mA pk-pk
10 20 10 15 15 15 10
Input Current
Full load conditions See ordering guide.
Inrush transient, A
2
sec 0.05
Output short circuit, mA 50
Low line (VIN = min.), Amps 2.30 1.54 2.06 1.03 1.54 7.21 3.09
Standby mode, mA
(Off, UV, OT shutdown)
210 8
Internal input fi lter type Pi L-C
External recommended fast
blow fuse, Amps
10 3 5 3 3 12.5 7.5
Reverse polarity
protection
None. Install external fuse.
Remote On/Off Control
Positive logic
(P model suffi x)
OFF = Ground pin to +1V max.
ON = Open or +3.5 to +13.5V max
Negative logic
(N model suffi x)
OFF = Open or +2.5V to +15V max.
ON = –0.1V to +0.8V max
Current, mA 1
Output
Voltage output range See ordering guide.
Voltage output accuracy ±1% of VNOM (50% load)
Adjustment range –10 to +10% of VNOM.
Temperature coeffi cient
over oper. temp. range
±0.02% of V
OUT range per °C
Minimum loading No minimum loading.
Remote sense
compensation
+10%.
Ripple/noise
(20 MHz bandwidth)
See ordering guide.
Line/Load regulation See ordering guide.
Effi ciency See ordering guide.
Maximum capacitive loading,
Low ESR <0.02 max.,
resistive load, F
10,000 max.
17
www.murata-ps.com/support
Single Output UCH Models
Isolated, “Half-Brick”
1.8−15V Output DC/DC Converters
MDC_UCH Models.C01 Page 3 of 18
P1-P3P4-P6P7-P9P10-P12P13-P15P16-P18

UCH-3.3/35-D24PB-C

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