Datasheet

R/N (mVp-p)
➁
Regulation (Max.) Effi ciency
Package
VOUT IOUT
VIN Nom. Range IIN ➃
(Case,
Model (Volts) (Amps) Typ. Max. Line Load ➂ (Volts) (Volts) (mA/A) Min. Typ. Pinout)
➀ Typical at TA = +25°C under nominal line voltage and full-load conditions, unless noted.
➁ Ripple/Noise (R/N) is tested/speciifed over a 20MHz bandwidth. All models are specifi ed with an external 0.47µF
multi-layer ceramic capacitor installed across their output pins. Using a 10µF multi-layer ceramic capacitor instead
(e.g. TDK part no. C3225X5R1C106M) will further reduce the R/N to 35mVp-p typical and 75mVp-p maximum.
➂ Load regulation is specifi ed over 0-100% load conditions. All models are stable and regulate within spec under
no-load conditions, with perhaps a slight increase in output ripple/noise.
➃ Nominal line voltage, no-load/full-load conditions.
➄ Please refer to the part number structure when ordering.
Performance Specifi cations and Ordering Guide
➀
➄
UWR-3.3/8-D12A-C 3.3 8 75 110 ±0.05% ±0.5% 12 10-18 145/2.97 88% 89% C4, P6
UWR-3.3/9-D24A-C 3.3 9 75 110 ±0.5% ±0.5% 24 18-36 50/1.4 86% 88.5% C4, P6
UWR-3.3/9-D48AN-C 3.3 9 75 110 ±0.5% ±0.5% 48 36-75 25/0.7 86% 88.5% C4, P6
UWR-5/7-D12A-C 5 7 75 110 ±0.5% ±0.5% 12 10-18 160/3.26 85.5% 89.5% C4, P6
UWR-5/8-D24A-C 5 8 75 110 ±0.05% ±0.15% 24 18-36 90/1.82 90% 91.5% C4, P6
UWR-5/8-D48AN-C 5 8 75 110 ±0.5% ±0.5% 48 36-75 25/0.93 86% 90% C4, P6
Note
For D12A and D24A models,
the case is connected to
Pin 2 (–Input).
For D48A models, the case is
connected to Pin 1 (+Input).
Output
Input
Pin Function P6
1 +Vin
2 –Vin
3 No Pin
4 On/Off Control
5 No Pin
6 +Vout
7 –Vout
8 Trim
I/O Connections
Third Angle Projection
Dimensions are in inches (mm shown for ref. only).
Components are shown for reference only.
Tolerances (unless otherwise specified):
.XX ± 0.02 (0.5)
.XXX ± 0.010 (0.25)
Angles ± 2˚
As of September 2014, ONLY the following part numbers will be available: UWR-3.3/8-D12A-C; UWR-5/8-D24A-C
www.murata-ps.com/support
Wide Range Input
Output Confi guration:
U = Unipolar
Nominal Output Voltage:
3.3 or 5 Volts
Maximum Output Current
in Amps
Input Voltage Range:
D12 = 10-18 Volts (12V nominal)
D24 = 18-36 Volts (24V nominal)
D48 = 36-75 Volts (48V nominal)
U WR
9
-
/
D48-
3.3
Part Number Suffi xes
A
PART NUMBER STRUCTURE
MECHANICAL SPECIFICATIONS
UWR 26-40W DC/DC's are designed so the On/Off Control function on pin 4 can be ordered with
either positive (open or "high" = on) or negative (open = off, pull low = on) logic. The standard part
number with no suffi x denotes positive logic. Add an "N" suffi x to select negative logic.
No Suffi x On/Off Control function (positive logic) on pin 4. Standard for D12, D24.
"N" Suffi x On/Off Control function (negative logic) on pin 4. Standard for D48.
N
BOTTOM VIEW
1.800
(45.72)
0.10
(2.5)
2.00
(50.8)
8
5
6
7
0.40
(10.2)
0.200
(5.08)
0.400
(10.16)
0.100
(2.54)
1
2
4
METAL CASE
INSULATED BAS
E
0.040 ± 0.002 DIA.
(1.02 ± 0.05)
2.00
(50.8)
0.20 MIN
(5.1)
0.45
(11.4)
1.200
(30.48)
3 EQ. SP. @
0.400 (10.16)
Case C4
On/Off Logic, see below
A-Series
High Reliability
RoHS-6 hazardous
substance compliant
C
-
UWR 26-40W Series
Single Output, High-Density, 3.3VOUT and 5 VOUT, 26-40 Watt, DC/DC Converters
MDC_UWR26-40W.D01 Page 2 of 10