UEI-3.3/18-Q48PR-C Murata Power Solutions Inc, UEI-3.3/18-Q48PR-C Datasheet - Page 4
![CONVERTER, DC/DC, 3.3V, 18A](/photos/21/63/216311/1635559-40_sml.jpg)
UEI-3.3/18-Q48PR-C
Manufacturer Part Number
UEI-3.3/18-Q48PR-C
Description
CONVERTER, DC/DC, 3.3V, 18A
Manufacturer
Murata Power Solutions Inc
Specifications of UEI-3.3/18-Q48PR-C
No. Of Output Channels
1
Input Voltage
18V To 75V
Power Rating
59.4W
Output Voltage
3.3V
Output Current
18A
Supply Voltage
48V
Dc / Dc Converter Case Style
Through Hole
Isolation Voltage
2.25kV
Product
Isolated
Output Power
59 W
Input Voltage Range
18 V to 75 V
Output Voltage (channel 1)
3.3 V
Output Current (channel 1)
18 A
No. Of Outputs
1
Approval Bodies
CSA / EN / UL
Rohs Compliant
Yes
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
INPUT CHARACTERISTICS
OUTPUT CHARACTERISTICS
ABSOLUTE MAXIMUM RATINGS
Input Voltage
On/Off control, referred to –Vin
Input Reverse Polarity Protection
Output Overvoltage
Output Current
Overtemperature Protection
Storage Temperature
Lead Temperature
UEI-3.3/15-Q12
UEI-3.3/18-Q48
UEI-5/10-Q12
UEI-5/12-Q48
UEI-12/4.2-Q12
UEI-12/5-Q48
UEI-15/3.3-Q12
UEI-15/4-Q48
UEI-3.3/15-Q12
UEI-3.3/18-Q48
UEI-5/10-Q12
UEI-5/12-Q48
UEI-12/4.2-Q12
UEI-12/5-Q48
UEI-15/3.3-Q12
UEI-15/4-Q48
*At 50% load
Model Family
Model Family
Q12 models
Q48 models
Max.
V
24
48
24
48
24
48
24
48
I
V
4.2
3.3
15
18
10
12
OUT
IN
A
5
4
threshold
Start-up
17.3
17.3
17.5
17.2
50% Load
% of V
Accuracy
9.5
9.5
9.5
9.5
V
V
±2
±1
Volts, max. continuous
Volts, transient, 100 mSec
Volts, max. continuous
Volts, transient, 100 mSec
OUT
NOM
voltage
Under-
Shut-
down
16.0*
16.0
16.7
16.3
8.5
8.5
8.5
8.5
V
Adjustment
% of V
Range
±10
mA pk-pk A
Refl ected
Current
(back)
Ripple
NOM
30
45
30
2
Temperature
% of V
Coeffi cient
Inrush
Tran-
sient
0.05
2
±0.02
sec
OUT
0-36 VDC to rated specifi cations
50 VDC, no damage
0-75 VDC to rated specifi cations
100 VDC, no damage
-0.7 V. min to +15V max.
Current-limited. Devices can
withstand sustained short circuit
without damage. The outputs are
not intended to accept appreci-
able reverse current.
Device includes electronic over-
temperature shutdown protection
under normal operation.
-55 to +125° C.
See soldering specifi cations
Output
Circuit
/ºC % of V
Short
Input Current
mA
50
V
OUT
Remote Sense
Compensation
See fuse section
www.murata-ps.com
Not Available
nom. +20% max.
Low
Line
6.25
3.71
6.21
3.70
6.31
3.88
6.15
3.77
+5
+5
+5
+5
A
OUT
max.
Standby
Mode
mA
1
Capacitive Loading Max.
Low ESR <0.02Ω Max,
Recom-
mended
resistive load
Fuse
12
12
10
A
6
6
6
9
6
2,000
μF
Internal
50-60W Isolated Wide-Range DC/DC Converters
Input
Filter
Type
Absolute Maximum Ratings
Absolute maximums are stress ratings. Exposure of devices to
greater than any of these conditions may adversely affect long-term
reliability. Proper operation under conditions other than those listed
in the Performance/Functional Specifi cations Table is not implied nor
recommended.
Maximum Ratings Notes
The UEI-50/60W series does not include electronic Input Overvoltage
Protection. Therefore it is possible for the input to exceed the con-
tinuous ratings listed above and still operate. However, units are not
routinely Production-tested above the continuous ratings. Therefore,
the rated specifi cations do not apply at excessive input voltage and
performance is undetermined.
cessfully tested for 100 mS at the transient stress voltage and were
not damaged. As a practical matter in your application, it is often
diffi cult to determine how long an input overvoltage was applied.
Therefore, do not exceed the continuous voltage rating.
L-C
The transient specifi cations indicate that sample lots were suc-
Protection
Reverse
Polarity
notes
None
- see
after fault removal
04 Nov 2010
Hiccup auto-start
Overvoltage
protection
Current
On/Off
16.5
21.5
mA
3.9
3.9
5.9
6.4
16
24
1
V
“P” model suffi x “N” model suffi x
OFF=Gnd pin or
max. ON=open
MDC_UEI Series 50-60W.B33 Page 4 of 13
Positive Logic
Remote On/Off Control
–0.7 to +1.2V
pin or +10 to
+15V max.
mini-
mum
load
No
email: sales@murata-ps.com
Magnetic
feedback
UEI Series
Negative Logic
or +10 to +15V
OFF=open pin
max. ON=Gnd
pin or –0.7 to
+1.2V max.
See ordering guide