Datasheet

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UEI30 Series
30W Isolated Wide-Range DC-DC Converters
MDC_UEI Series 30W.B02 Page 3 of 18
INPUT CHARACTERISTICS
Model Family
Start-up
threshold
Under-
voltage
Shut-
down
Refl ected
(back)
Ripple
Current
2
Input Current
Recommended
Fast-Blow Fuse
Internal
Input
Filter
Type
Reverse
Polarity
Protection
Remote On/Off Control
Inrush
Tran-
sient
Output
Short
Circuit
Low
Line
Standby
Mode
On/Off
Current
Positive Logic Negative Logic
V V mA pk-pk A
2
sec mA A mA A mA “P” model suffi x “N” model suffi x
ABSOLUTE MAXIMUM RATINGS
Input Voltage
Q12 models
Volts, max. continuous 0-36 VDC to rated specifi cations
Volts, transient, 100 mSec
50 VDC, no damage
Q48 models
Volts, max. continuous
0-75 VDC to rated specifi cations
Volts, transient, 100 mSec 100 VDC, no damage
On/Off control, referred to –Vin -0.7 V. min to +15V max.
Input Reverse Polarity Protection None, install external fuse
Output Overvoltage V
OUT nom. +20% max.
Output Current
Current-limited. Devices can
withstand sustained short circuit
without damage. The outputs are
not intended to accept appreci-
able reverse current.
Overtemperature Protection
Device includes electronic over-
temperature shutdown protection
under normal operation.
Storage Temperature
-55 to +125° C.
Lead Temperature See soldering specifi cations
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 transient specifi cations indicate that sample lots were success-
fully 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.
FUNCTIONAL SPECIFICATIONS
UEI30-033-Q12P-C
9.5 8.5
30 0.05
50
3.75
1
6
L-C
None,
install
external
fuse
1
OFF=Gnd pin or
–0.7 to +1.2V
max. ON=open
pin or +10 to
+15V max.
OFF=open pin
or +10 to +15V
max. ON=Gnd
pin or –0.7 to
+1.2V max.
UEI30-033-Q48N-C 17.3 16.0* 1.89 6
UEI30-050-Q12P-C 9.5 8.0 3.75 6
UEI30-050-Q48N-C 17.0 16.2 1.88 6
UEI30-120-Q12P-C 9.5 8.3 3.75 3 6 3.5
UEI30-120-Q48N-C 17.0 16.5 1.85
1
4
1
UEI30-150-Q12P-C 9.5 8.3 80 3.72 6
UEI30-150-Q48N-C 16.9 16.3 50 1.83 4
*Specifi ed at half load
OUTPUT CHARACTERISTICS
Model Family
VOUT
Accuracy
Adjustment
Range
Temperature
Coeffi cient
Capacitive Loading Max.
Overvoltage
protection
Minimum
loading
OV
protection
method
Ripple/Noise
(20 MHz
bandwidth)
8
Line/Load
Regulation
Effi ciency
50% Load
Low ESR <0.02Ω Max,
resistive load
Hiccup auto-start
after fault removal
% of V
NOM % of VNOM % of VOUT /ºC µF V
UEI30-033-Q12P-C 2
±10 ±0.02 2,000
5.0
No
Magnetic
feedback
See ordering guide
UEI30-033-Q48N-C
1
5.0
UEI30-050-Q12P-C 7.0
UEI30-050-Q48N-C 7.3
UEI30-120-Q12P-C 15.5
UEI30-120-Q48N-C 14.1
UEI30-150-Q12P-C 18.5
UEI30-150-Q48N-C 24