MURATA POWER SOLUTIONS UEI30-150-Q12N-C
Specifications
Manufacturer
Murata Power Solutions
Manufacturers Part #
UEI30-150-Q12N-C
Lead Time
30 Week Lead Time
Series
UEI30
Factory Pack Quantity
21
Cooling Method
Convection
Dimensions
1.92 x 0.92 x 0.35"
Efficiency
89%
Input Voltage Nominal
24 VDC
Isolation
2250 VDC
Mechanical Style
Isolated
Mounting
Through Hole
Number of Outputs
1
Operating Temperature
- 40 to + 85°C
Output Amps 1
2 A
Output Voltage V1 Nominal
15 VDC
Power
30 W
Subcategory
DC-DC Converter
Datasheet
Extracted Text
UEI30 Series
www.murata-ps.com
30W Isolated Wide-Range DC-DC Converters
Featuring a full 30 Watt output in 1.8 square inches of board area, the UEI
series isolated DC/DC converter family offers efficient regulated DC
power for printed circuit board mounting.
T Typical unit ypical unit
FEATURES PRODUCT OVERVIEW
Small footprint DC/DC converter, ideal for high
Wide range 4:1 inputs on the 0.92" x 1.92" x 0.35" programmable logic and FPGA’s. No minimum
current applications
converter are either 9 to 36 Volts DC (Q12 models) load is required. For systems requiring controlled
0.92" x 1.92" x 0.35" open frame package
or 18 to 75 Volts DC (Q48 models), ideal for startup/shutdown, an external switch, transistor
battery-powered and telecom equipment. Fixed or digital logic may be used to activate the remote
Wide range input voltages 9-36 and 18-75Vdc
output voltages from 3.3 VDC to 15 VDC are tightly On/Off control.
Assembly and attachment for RoHS-6 hazardous
regulated and may be trimmed within ±10%
A wealth of self-protection features avoid both
substance compliance
of nominal output. Applications include small
converter and external circuit problems. These
Isolation up to 2250 VDC (basic), Q48 models
instruments, computer-based systems, data com-
include input undervoltage lockout and overtem-
Up to 30W total output power with munications equipment, remote sensor systems,
perature shutdown. The outputs current limit using
overtemperature shutdown vehicle and portable electronics.
the “hiccup” autorestart technique and the outputs
High effi ciency synchronous rectifi er forward The UEI 30W Series includes full magnetic may be short-circuited indefi nitely. Additional
topology and optical isolation up to 2250 Volts DC (basic features include output overvoltage and reverse
insulation), Q48 models. For connection to digital conduction elimination.
Stable no-load operation with no required
systems, the outputs offer fast settling to current
external components
The synchronous rectifi er forward topology
step loads and tolerance of higher capacitive
offers high effi ciency for minimal heat buildup
–40 to +85°C temperature range; see derating
loads. Excellent ripple and noise specifi cations
and “no fan” operation.
Certifi ed to UL60950-1, CSA-C22.2 No. 234
assure compatibility to circuits using CPU’s, ASIC’s,
safety approvals, and CE marking on 48V input
only
SIMPLIFIED SCHEMATIC
Extensive self-protection shut down features
RoHS-6 hazardous substance compliant
+VOUT
+VIN
GATE
DRIVE
–VIN
–VOUT
ISOLATION
BARRIER
On/Off
Control
Control
TRIM
OPTO Reference, trim &
ISOLATION Error Amplifier
Typical topology is shown.
For full details go to
www.murata-ps.com/rohs
(48V input only)
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MDC_UEI Series 30W.B03 Page 1 of 18
UEI30 Series
30W Isolated Wide-Range DC-DC Converters
PERFORMANCE SPECIFICATIONS SUMMARY AND ORDERING GUIDE
Output Input Open Frame
Effi ciency
Package, C80
Power R/N (mVp-p) Regulation (Max.)
VIN IIN,
VOUT IOUT Range IIN, full
Nom. no load
(V) (A) (V) load (A) Min. Typ.
(W) Typ. Max. Line Load Case Pinout
(V) (mA)
Part Number
UEI30-033-Q12P-C 3.3 9 29.7 25 35 ±0.2% ±0.25% 24 9-36 130 1.39 87.3% 89% C80 P21
UEI30-033-Q48N-C 3.3 9 29.7 50 75 ±0.2% ±0.25% 48 18-75 50 0.69 87% 89.5% C80 P21
UEI30-050-Q12P-C 5 6 30 35 50 ±0.2% ±0.2% 24 9-36 130 1.4 88% 89.5% C80 P21
UEI30-050-Q48N-C 5 6 30 25 50 ±0.1% ±0.2% 48 18-75 130 0.7 87% 88.8% C80 P21
UEI30-120-Q12P-C 12 2.5 30 60 120 ±0.2% ±0.1% 24 9-36 75 1.4 87.5% 89% C80 P21
UEI30-120-Q48N-C 12 2.5 30 30 60 ±0.2% ±0.1% 48 18-75 40 0.7 87.5% 89% C80 P21
UEI30-150-Q12P-C 15 2 30 40 65 ±0.2% ±0.1% 24 9-36 95 1.4 87.5% 89% C80 P21
UEI30-150-Q48N-C 15 2 30 50 100 ±0.2% ±0.1% 48 18-75 50 0.7 87.5% 89.5% C80 P21
Output capacitors are 1 μF ceramic in parallel with 10 μF electrolytic. Input cap is 22 μF, low ESR.
Please refer to the part number structure for additional options and complete ordering part numbers.
These I/O caps are necessary for our test equipment and may not be needed for your application.
All specifi cations are at nominal line voltage and full load, +25°C. unless otherwise noted. See
detailed specifi cations.
PART NUMBER STRUCTURE
UEI30 - 050 - Q48 N H Lx - C
RoHS-6 hazardous substance compliance
Nominal Output Voltage
(does not claim EU RoHS exemption 7b–lead in solder)
In tenths of a volt
Pin Length Option
Input Voltage Range:
Blank = Std. pin length 0.25˝ (6.3mm)
Q12 = 9-36V
L1 = 0.110˝ (2.79mm)*
Q48 = 18-75V
L2 = 0.145˝ (3.68mm)*
*Special quantity order is required;
Conformal Coating Option
no sample quantities available.
Blank = No coating, standard
H = Coating added, optional
(built to order; contact Murata Power Solutions for MOQ and lead times.)*
On/Off Control Logic:
P = Positive
N = Negative Note:
Some model number combinations
Positive “P” logic is standard for Q12 models and optional special
may not be available. Please contact
order for Q48 models. Negative “N” logic is standard for Q48 models
Murata Power Solutions.
and optional special order for Q12 models.
Special Customer Configuration part numbers:
1) UEI30-033-Q12PH-31328 (3.3Vout @ 30W, Positive Logic,
Conformal Coating, Hipot Tested to 2,000Vrms)
2) UEI30-050-Q12PH-31329 (5Vout @ 30W, Positive Logic, Conformal
Coating, Hipot Tested to 2,000Vrms)
3) UEI30-050-Q12PL1-C-NI (5Vout @ 30W, Positive Logic, 0.110” Pin
Length, Control loop changes for large capacitive load)
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MDC_UEI Series 30W.B03 Page 2 of 18
UEI30 Series
30W Isolated Wide-Range DC-DC Converters
FUNCTIONAL SPECIFICATIONS
INPUT CHARACTERISTICS
Remote On/Off Control
Input Current
Under- Refl ected
Internal
Reverse
Start-up voltage (back)
Input
Inrush Output
Model Family threshold Shut- Ripple Polarity
Low Standby On/Off
Filter
2 Tran- Short Positive Logic Negative Logic
down Current Protection
Line Mode Current
Type
sient Circuit
2
V V mA pk-pk A sec mA A mA A mA “P” model suffi x “N” model suffi x
UEI30-033-Q12P-C 9.5 8.5 3.75 6
UEI30-033-Q48N-C 17.3 16.0* 1.89 6
1 1
OFF=Gnd pin or OFF=open pin
UEI30-050-Q12P-C 9.5 8.0 3.75 6
None,
50
–0.7 to +1.2V or +10 to +15V
UEI30-050-Q48N-C 17.0 16.2 1.88 6
install
30 0.05 L-C max. ON=open max. ON=Gnd
external
UEI30-120-Q12P-C 9.5 8.3 3.75 3 6 3.5
pin or +10 to pin or –0.7 to
fuse
UEI30-120-Q48N-C 17.0 16.5 1.85 4
+15V max. +1.2V max.
UEI30-150-Q12P-C 9.5 8.3 80 3.72 1 6 1
UEI30-150-Q48N-C 16.9 16.3 50 1.83 4
*Specifi ed at half load
OUTPUT CHARACTERISTICS
VOUT Overvoltage
Capacitive Loading Max.
Accuracy protection
Adjustment Temperature
Low ESR <0.02Ω Max, Hiccup auto-start
Model Family Range Coeffi cient
50% Load
resistive load after fault removal
% of VNOM % of VNOM % of VOUT /ºC μF V
UEI30-033-Q12P-C 2 5.0
UEI30-033-Q48N-C 5.0
UEI30-050-Q12P-C 7.0
UEI30-050-Q48N-C 7.3
Magnetic
±10 ±0.02 2,000 No See ordering guide
feedback
UEI30-120-Q12P-C 1 15.5
UEI30-120-Q48N-C 14.1
UEI30-150-Q12P-C 18.5
UEI30-150-Q48N-C 24
Absolute Maximum Ratings
ABSOLUTE MAXIMUM RATINGS
Absolute maximums are stress ratings. Exposure of devices to
Volts, max. continuous 0-36 VDC to rated specifi cations
Q12 models
greater than any of these conditions may adversely affect long-term
Volts, transient, 100 mSec
50 VDC, no damage
Input Voltage
reliability. Proper operation under conditions other than those listed
Volts, max. continuous 0-75 VDC to rated specifi cations
Q48 models
in the Performance/Functional Specifi cations Table is not implied nor
Volts, transient, 100 mSec 100 VDC, no damage
recommended.
On/Off control, referred to –Vin -0.7 V. min to +15V max.
Input Reverse Polarity Protection None, install external fuse
Maximum Ratings Notes
Output Overvoltage VOUT nom. +20% max.
The transient specifi cations indicate that sample lots were success-
Current-limited. Devices can
fully tested for 100 mS at the transient stress voltage and were not
withstand sustained short circuit
damaged. As a practical matter in your application, it is often diffi cult
Output Current without damage. The outputs are
not intended to accept appreci-
to determine how long an input overvoltage was applied. Therefore,
able reverse current.
do not exceed the continuous voltage rating.
Device includes electronic over-
Overtemperature Protection temperature shutdown protection
under normal operation.
Storage Temperature -55 to +125° C.
Lead Temperature See soldering specifi cations
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MDC_UEI Series 30W.B03 Page 3 of 18
Recommended
Fast-Blow Fuse
Minimum
loading
OV
protection
method
Ripple/Noise
(20 MHz
8
bandwidth)
Line/Load
Regulation
Effi ciency
UEI30 Series
30W Isolated Wide-Range DC-DC Converters
ISOLATION CHARACTERISTICS DYNAMIC CHARACTERISTICS
Start-up Time
Dynamic Load
Input to Isolation
Isolation Response Switching
Output. Resistance
VIN to VOUT Remote On/Off
Insulation Safety
Model Family
Capacitance Model Family (50-75-50% Frequency
regulated to VOUT
Rating
load step)
Min Min (Max.) regulated (Max.)
VDC MΩ pF μsec mSec mSec KHz
UEI30-033-Q12P-C 2000 1000
UEI30-033-Q12P-C 120 to 2% 275
UEI30-033-Q48N-C 2250 1000 UEI30-033-Q48N-C 180 to 2% 280
UEI30-050-Q12P-C 2000 1000 UEI30-050-Q12P-C 80 to 2% 275
UEI30-050-Q48N-C 2250 1000
UEI30-050-Q48N-C 100 to 1% 275
10 Basic 50 50
UEI30-120-Q12P-C 2000 1500
UEI30-120-Q12P-C 200 to 1% 275
UEI30-120-Q48N-C 2250 1500 UEI30-120-Q48N-C 150 to 1% 275
UEI30-150-Q12P-C 2000 1500 UEI30-150-Q12P-C 150 to 1% 275
UEI30-150-Q48N-C 2250 2000
UEI30-150-Q48N-C 150 to 1% 275
MISCELLANEOUS CHARACTERISTICS
Output Current
Output Output Relative
Storage Thermal
Limit Inception Output Short
Short Humidity,
Short Output
temperature protection/
Circuit Duration Operating Temperature
Model Family
Circuit non-
Circuit Pre-biased
98% of VOUT,
(output shorted Range range shutdown
Current condensing
Protection setup
after warmup
to ground)
Method
A A ºC ºC ºC
UEI30-033-Q12P-C 11.5 0.3 max.
UEI30-033-Q48N-C 11.2 0.3 max.
UEI30-050-Q12P-C 7.9 Current 3.0
limiting, Monotonic –40 to +85ºC;
UEI30-050-Q48N-C 7.4 0.3 max.
To +85ºC/
hiccup Continuous (external with Derating –55 to 125ºC 115
85% RH
UEI30-120-Q12P-C 4.1 1.5
auto VOUT < VSET) (see Notes)
UEI30-120-Q48N-C 3.65 restart 0.75
UEI30-150-Q12P-C 3.0 0.5
UEI30-150-Q48N-C 3.25 0.1 max.
Specifi cation Notes:
capacitance can retard transient response or possibly cause instability. Low ESR ceramic capacitors
(1) All models are tested and specifi ed with external 1 μF and 10 μF parallel output capacitors and a
may degrade dynamic performance. Be sure to thoroughly test your system under full load with all
22 μF external input capacitor. All capacitors are low ESR types. These capacitors are necessary to
components installed.
accommodate our test equipment and may not be required to achieve specifi ed performance in your (9) All models are fully operational and meet published specifi cations, including “cold start” at –40°C.
applications. All models are stable and regulate within spec under no-load conditions. (10) Regulation specifi cations describe the deviation as the line input voltage or output load current is
All specifi cations are typical unless noted. General conditions for Specifi cations are +25 deg.C, varied from a nominal midpoint value to either extreme.
Vin=nominal, Vout=nominal, full load. Adequate airfl ow must be supplied for extended testing under (11) The output overvoltage protection is automatic recovery. The overvoltage may occur either from
power. internal failure or from an external forcing voltage as in a shared power system.
(2) Input Back Ripple Current is tested and specifi ed over a 5 Hz to 20 MHz bandwidth. Input fi ltering (12) Output overvoltage and short circuit protection is non-latching. When the overvoltage fault is
is Cin=33 μF, 100V, Cbus=220 μF, 100V, Lbus=12 μH. removed, the converter will immediately recover. After an output overcurrent or short circuit, “hiccup”
(3) Note that Maximum Power Derating curves indicate an average current at nominal input voltage. operation repeatedly attempts to restart the converter with a brief, full-current output. If the overcur-
At higher temperatures and/or lower airfl ow, the DC/DC converter will tolerate brief full current rent condition still exists, the restart current will be removed and then tried again. This short current
outputs if the total RMS current over time does not exceed the Derating curve. All Derating curves pulse prevents overheating and damaging the converter. Once the fault is removed, the converter
are presented at sea level altitude. Be aware of reduced power dissipation with increasing density immediately resumes normal operation.
altitude. (13) Do not exceed maximum power specifi cations when adjusting the output trim.
(4) Refer to page 10 for MTBF values. (14) At zero output current, the output may contain low frequency components which exceed the
(5) The On/Off Control is normally selected by a switch or an open collector or open drain transistor. ripple specifi cation. The output may be operated indefi nitely with no load.
But it may also be driven with external logic or by applying appropriate external voltages which are (15) If reverse polarity is accidentally applied to the input, to ensure reverse input protection with full
referenced to Input Common and do not exceed the On/Off voltage specifi cations. output load, always connect an external input fuse in series with the +Vin input. Use approximately
(6) Output current limiting begins when the output voltage degrades approximately 2% from the twice the full input current rating with nominal input voltage.
selected setting. CAUTION: This product is not internally fused. To comply with safety agency certifi cations and to
(7) The outputs are not intended to sink appreciable reverse current. avoid injury to personnel or equipment, the user must connect an external fast-blow fuse to the input
(8) Output noise may be further reduced by adding an external fi lter. Low voltage logic circuits may terminals. See fuse information.
have a small voltage margin between logic ZERO and logic ONE, requiring noise suppression. Use
only as much output fi ltering as needed to achieve your noise requirements. Excessive output
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MDC_UEI Series 30W.B03 Page 4 of 18
UEI30 Series
30W Isolated Wide-Range DC-DC Converters
PERFORMANCE DATA
UEI30-033-Q12
Effi ciency vs. Line Voltage and Load Current @ 25°C Maximum Current Temperature Derating @Sea Level
(VIN = 12V, airfl ow is from input to output)
90
9
8.8
Natural convection
85
8.6 0.5 m/s (100 LFM)
1.0 m/s (200 LFM)
8.4
1.5 m/s (300 LFM)
80
2.0 m/s (400 LFM)
8.2
Vin = 36 V
8
Vin = 24 V
75
7.8
Vin = 12 V
7.6
Vin = 9 V
70
7.4
7.2
65
7
20 25 30 35 40 45 50 55 60 65 70 75 80 85 90
60
Ambient Temperature (ºC)
0 12 3 45 6 78 9
Load Current (Amps)
UEI30-033-Q48
Effi ciency vs. Line Voltage and Load Current @ 25°C Maximum Current Temperature Derating @Sea Level
(VIN = 24V, airfl ow is from input to output)
100 9.1
90 9
Natural convection
80 8.9
0.5 m/s (100 LFM)
1.0 m/s (200 LFM)
70 8.8
Vin = 75 V
Vin = 48 V
60
8.7
Vin = 24 V
50
8.6
Vin = 18 V
40
8.5
20 25 30 35 40 45 50 55 60 65 70 75 80 85 90
30 Ambient Temperature (ºC)
20
0 12 34 5 6 78 9
Load Current (Amps)
UEI30-033-Q48
Maximum Current Temperature Derating @Sea Level
(VIN = 48V, airfl ow is from input to output)
9.1
9
Natural convection
8.9
0.5 m/s (100 LFM)
1.0 m/s (200 LFM)
8.8
8.7
8.6
8.5
20 25 30 35 40 45 50 55 60 65 70 75 80 85 90
Ambient Temperature (ºC)
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MDC_UEI Series 30W.B03 Page 5 of 18
Efficiency (%) Efficiency (%)
Output Current (Amps)
Output Current (Amps) Output Current (Amps)
UEI30 Series
30W Isolated Wide-Range DC-DC Converters
PERFORMANCE DATA
UEI30-050-Q12
Effi ciency vs. Line Voltage and Load Current @ 25°C Maximum Current Temperature Derating @Sea Level
(VIN = 12 or 24V, airfl ow is from input to output)
100 6.10
90 6.00
Natural convection
80 5.90
70 5.80
Vin = 36 V
Vin = 24 V
60 5.70
Vin = 12 V
50 5.60
Vin = 10 V
5.50
40
20 25 30 35 40 45 50 55 60 65 70 75 80 85 90
Ambient Temperature (ºC)
30
20
Load Current (Amps)
UEI30-050-Q48
Effi ciency vs. Line Voltage and Load Current @ 25°C Maximum Current Temperature Derating @Sea Level
(VIN = 18V, transverse airfl ow)
100
90
6.1
80
6.0
70
Natural convection
Vin = 75 V
5.9
0.5 m/s (100 LFM)
Vin = 48 V
1.0 m/s (200 LFM)
60
5.8
1.5 m/s (300 LFM)
Vin = 24 V
50 Vin = 18 V
5.7
5.6
40
5.5
30
20 25 30 35 40 45 50 55 60 65 70 75 80 85 90
Ambient Temperature (ºC)
20
Load Current (Amps)
UEI30-050-Q48
Maximum Current Temperature Derating @Sea Level Maximum Current Temperature Derating @Sea Level
(VIN = 24V, transverse airfl ow) (VIN = 48V, transverse airfl ow)
6.1 6.1
6.0
6.0
Natural convection
5.9
5.9
Natural convection
5.8
5.8 0.5 m/s (100 LFM)
5.7
5.7
5.6
5.6
5.5
5.5
20 25 30 35 40 45 50 55 60 65 70 75 80 85 90
20 25 30 35 40 45 50 55 60 65 70 75 80 85 90
Ambient Temperature (ºC)
Ambient Temperature (ºC)
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MDC_UEI Series 30W.B03 Page 6 of 18
0
1.00
2.00
3.00
4.00
5.00
6.00
0
1.00
2.00
3.00
4.00
5.00
6.00
Output Current (Amps) Efficiency (%) Efficiency (%)
Output Current (Amps) Output Current (Amps)
Output Current (Amps)
UEI30 Series
30W Isolated Wide-Range DC-DC Converters
PERFORMANCE DATA
UEI30-120-Q12
Effi ciency vs. Line Voltage and Load Current @ 25°C Power Dissipation vs. Load Current @ 25°C
4.5
90
Vin = 36 V
4.0
Vin = 24 V
88
Vin = 12 V
86
3.5
Vin = 9 V
84
3.0
82
Vin = 36 V
80
2.5
Vin = 24 V
78
Vin = 12 V
2.0
Vin = 9 V
76
74
1.5
72
1.0
70
0.5 0.7 0.9 1.1 1.3 1.5 1.7 1.9 2.1 2.3 2.5
68
Load Current (Amps)
0.5 0.7 0.9 1.1 1.3 1.5 1.7 1.9 2.1 2.3 2.5
Load Current (Amps)
UEI30-120-Q12
Maximum Current Temperature Derating @Sea Level Maximum Current Temperature Derating @Sea Level
(VIN = 9-24V, transverse airfl ow) (VIN = 36V, transverse airfl ow)
2.55 2.55
2.50
2.50
0.5 m/s (100 LFM)
100 LFM
1.0 m/s (200 LFM)
2.45
2.45
2.40
2.35
2.40
2.30
2.35
2.25
2.20
2.30 20 25 30 35 40 45 50 55 60 65 70 75 80 85
20 25 30 35 40 45 50 55 60 65 70 75 80 85
Ambient Temperature (ºC)
Ambient Temperature (ºC)
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MDC_UEI Series 30W.B03 Page 7 of 18
Output Current (Amps) Efficiency (%)
Output Current (Amps) Power Dissipation (Watts)
UEI30 Series
30W Isolated Wide-Range DC-DC Converters
PERFORMANCE DATA
UEI30-120-Q48
Effi ciency vs. Line Voltage and Load Current @ 25°C Power Dissipation vs. Load Current @ 25°C
Vin = 75V
90
4.5
Vin = 48V
88
Vin = 24V
4.0
86
Vin = 18V
3.5
84
82
3.0
Vin = 75 V
80
2.5
Vin = 48 V
78
Vin = 24 V
2.0
76
Vin = 18 V
74
1.5
72
1.0
70 0.5 0.7 0.9 1.1 1.3 1.5 1.7 1.9 2.1 2.3 2.5
68
Load Current (Amps)
0.5 0.7 0.9 1.1 1.3 1.5 1.7 1.9 2.1 2.3 2.5
Load Current (Amps)
UEI30-120-Q48
Maximum Current Temperature Derating @Sea Level Maximum Current Temperature Derating @Sea Level
(VIN = 18-48V, transverse airfl ow) (VIN = 75V, transverse airfl ow)
3.00 2.60
2.55
2.75
2.50
2.50
100 LFM
0.5 m/s (100 LFM)
1.0 m/s (200 LFM)
2.45
2.25
2.40
2.00
2.35
1.75
2.30
1.50
2.25
1.25
2.20
1.00
20 25 30 35 40 45 50 55 60 65 70 75 80 85
20 25 30 35 40 45 50 55 60 65 70 75 80 85
Ambient Temperature (ºC)
Ambient Temperature (ºC)
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MDC_UEI Series 30W.B03 Page 8 of 18
Output Current (Amps) Efficiency (%)
Output Current (Amps) Power Dissipation (Watts)
UEI30 Series
30W Isolated Wide-Range DC-DC Converters
PERFORMANCE DATA
UEI30-150-Q12
Effi ciency vs. Line Voltage and Load Current @ 25°C Power Dissipation vs. Load Current @ 25°C
4.5
90
4.0
88
86
3.5
84
3.0
82
80
Vin = 36 V
2.5
Vin = 24 V
78
Vin = 12 V
2.0 Vin = 36 V
76
Vin = 9 V
Vin = 24 V
74
1.5
Vin = 12 V
72
Vin = 9 V
1.0
70
0.4 0.5 0.7 0.9 1.0 1.2 1.4 1.5 1.7 1.8 2.0
68
Load Current (Amps)
0.4 0.5 0.7 0.9 1.0 1.2 1.4 1.5 1.7 1.8 2.0
Load Current (Amps)
UEI30-150-Q12
Maximum Current Temperature Derating @Sea Level Maximum Current Temperature Derating @Sea Level
(VIN = 9-24V, transverse airfl ow) (VIN = 36V, transverse airfl ow)
2.05 2.05
2.00
2.00
100 LFM
0.5 m/s (100 LFM)
1.0 m/s (200 LFM)
1.5 m/s (300 LFM)
1.95
1.95
1.90
1.90
1.85
1.85
1.80
20 25 30 35 40 45 50 55 60 65 70 75 80 85
1.80
20 25 30 35 40 45 50 55 60 65 70 75 80 85
Ambient Temperature (ºC)
Ambient Temperature (ºC)
UEI30-150-Q12
Maximum Current Temperature Derating @Sea Level
(Natural convection)
2.5
2
1.5
Vin = 12 V
Vin = 24 V
1
0.5
0
30 35 40 45 50 55 60 65 70 75 80 85
Ambient Temperature (ºC)
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MDC_UEI Series 30W.B03 Page 9 of 18
Output Current (Amps) Efficiency (%)
Output Current (Amps)
Output Current (Amps) Power Dissipation (Watts)
UEI30 Series
30W Isolated Wide-Range DC-DC Converters
PERFORMANCE DATA
UEI30-150-Q48
Effi ciency vs. Line Voltage and Load Current @ 25°C Power Dissipation vs. Load Current @ 25°C
92
5.0
90
4.5
88
4.0
Vin = 75V
86
Vin = 48V
3.5
Vin = 24V
84
3.0
Vin = 18V
82
Vin = 75 V 2.5
80
Vin = 48 V
2.0
78 Vin = 24 V
Vin = 18 V 1.5
76
1.0
74
0.7 0.8 1.0 1.1 1.2 1.3 1.5 1.6 1.7 1.9 2.0
72
Load Current (Amps)
0.7 0.8 1.0 1.1 1.2 1.3 1.5 1.6 1.7 1.9 2.0
Load Current (Amps)
UEI30-150-Q48
Maximum Current Temperature Derating @Sea Level Maximum Current Temperature Derating @Sea Level
(VIN = 18-48V, transverse airfl ow) (VIN = 75V, transverse airfl ow)
2.2 2.2
2.0
2.0
Natural Convection
0.5 m/s (100 LFM)
1.0 m/s (200 LFM)
1.5 m/s (300 LFM)
1.8
1.8
1.6
1.6
1.4
1.4
1.2
1.2
1.0
1.0
20 25 30 35 40 45 50 55 60 65 70 75 80 85
20 25 30 35 40 45 50 55 60 65 70 75 80 85
Ambient Temperature (ºC)
Ambient Temperature (ºC)
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MDC_UEI Series 30W.B03 Page 10 of 18
Output Current (Amps) Efficiency (%)
Output Current (Amps) Power Dissipation (Watts)
UEI30 Series
30W Isolated Wide-Range DC-DC Converters
MECHANICAL SPECIFICATIONS
TOP VIEW
1.92
(48.8)
PIN #1
Dimensions are in inches (mm shown for ref. only).
Third Angle Projection
0.92
(23.4)
Tolerances (unless otherwise specified):
.XX ± 0.02 (0.5)
.XXX ± 0.010 (0.25)
Angles ± 2˚
SIDE VIEW
Components are shown for reference only.
0.35
(8.9)
0.25
(6.4)
MOUNTING PLANE
0.040 0.002 PIN WITH
0.071 0.002 SHOULDER
BOTTOM VIEW
6X AT PINS 1-6
1.800
#6
(45.72)
#3
C
L
0.900
REF
END VIEW
(22.86)
#5
#2
0.400
.0300 (7.62)
(10.16)
C
L
0.100 (2.54)
0.300 (7.62)
.0400
(10.16)
C
L
#1
#4
UEI30 Open Frame
30W
Package C80
INPUT/OUTPUT CONNECTIONS
PHYSICAL CHARACTERISTICS
Pin Function P21 Pin Function P21
Copper alloy with gold plate over nickel
Pin material
underplate 1 + Vin 4 + Vout
2 - Vin 5 - Vout
Pin diameter 0.04" (1.016mm)
3 Remote On/Off* 6 Trim
Pin Finish Gold plate
* The Remote On/Off can be provided with either positive (P suffi x) or negative
Weight 0.53 oz (15g)
(N suffi x) logic.
Electromagnetic interference EN55022/CISPR22 (requires external fi lter)
Flammability Rating UL 94V-0
Designed to meet IEC/EN/UL/cUL 60950-1,
Safety
CSA-C22.2 No. 60950-1
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MDC_UEI Series 30W.B03 Page 11 of 18
UEI30 Series
30W Isolated Wide-Range DC-DC Converters
SHIPPING TRAYS AND BOXES
Anti-static foam
Label
Label
For 1–42 pc quantity For 43–84 pc quantity
SHIPPING TRAY
UEI30 modules are supplied in a 21-piece (3-by-7) shipping tray. The tray is an anti-static closed-cell polyethylene foam. Dimensions are shown below.
9.920
+0.000
(252)
-0.062
0.910 (23.1) TYP
0.455 (11.6) TYP
0.735 (18.7)
9.920
(252)
+0.000
-0.062
0.625 (15.9) TYP
2.400 (61) TYP
Dimensions in inches (mm)
0.25 R TYP
1.300 (33.0) TYP
0.25 CHAMFER TYP (4-PL)
7.800
1.06
(198.1)
(26.9)
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MDC_UEI Series 30W.B03 Page 12 of 18
UEI30 Series
30W Isolated Wide-Range DC-DC Converters
Sometimes only a small ceramic capacitor is suffi cient. Since it is diffi cult to
TECHNICAL NOTES
totally characterize all applications, some experimentation may be needed.
Input Fusing
Note that external input capacitors must accept high speed switching currents.
Certain applications and/or safety agencies may require fuses at the inputs of
Because of the switching nature of DC/DC converters, the input of these
power conversion components. Fuses should also be used when there is the
converters must be driven from a source with both low AC impedance and
possibility of sustained input voltage reversal which is not current-limited. For
adequate DC input regulation. Performance will degrade with increasing input
greatest safety, we recommend a fast blow fuse installed in the ungrounded
inductance. Excessive input inductance may inhibit operation. The DC input
input supply line.
regulation specifi es that the input voltage, once operating, must never degrade
The installer must observe all relevant safety standards and regulations. For
below the Shut-Down Threshold under all load conditions. Be sure to use
safety agency approvals, install the converter in compliance with the end-user
adequate trace sizes and mount components close to the converter.
safety standard.
I/O Filtering, Input Ripple Current and Output Noise
Input Reverse-Polarity Protection
All models in this converter series are tested and specifi ed for input refl ected
If the input voltage polarity is reversed, an internal diode will become forward
ripple current and output noise using designated external input/output compo-
biased and likely draw excessive current from the power source. If this source
nents, circuits and layout as shown in the fi gures below. External input capaci-
is not current-limited or the circuit appropriately fused, it could cause perma-
tors (CIN in the fi gure) serve primarily as energy storage elements, minimizing
nent damage to the converter.
line voltage variations caused by transient IR drops in the input conductors.
Users should select input capacitors for bulk capacitance (at appropriate
Input Under-Voltage Shutdown and Start-Up Threshold
frequencies), low ESR and high RMS ripple current ratings. In the fi gure below,
Under normal start-up conditions, converters will not begin to regulate properly
the CBUS and LBUS components simulate a typical DC voltage bus. Your specifi c
until the rising input voltage exceeds and remains at the Start-Up Threshold
system confi guration may require additional considerations. Please note that the
Voltage (see Specifi cations). Once operating, converters will not turn off until
values of CIN, LBUS and CBUS will vary according to the specifi c converter model.
the input voltage drops below the Under-Voltage Shutdown Limit. Subsequent
restart will not occur until the input voltage rises again above the Start-Up
Threshold. This built-in hysteresis prevents any unstable on/off operation at a
TO
CURRENT
OSCILLOSCOPE
single input voltage.
PROBE
1
+VIN
Users should be aware however of input sources near the Under-Voltage
LBUS
+
Shutdown whose voltage decays as input current is consumed (such as capaci-
–
tor inputs), the converter shuts off and then restarts as the external capacitor VIN
CBUS CIN
+
recharges. Such situations could oscillate. To prevent this, make sure the operat-
–
ing input voltage is well above the UV Shutdown voltage AT ALL TIMES.
2
−VIN
Start-Up Delay
CIN = 33μF, ESR < 700mΩ @ 100kHz
Assuming that the output current is set at the rated maximum, the Vin to Vout Start- CBUS = 220μF, ESR < 100mΩ @ 100kHz
LBUS = 12μH
Up Delay (see Specifi cations) is the time interval between the point when the rising
input voltage crosses the Start-Up Threshold and the fully loaded regulated output
Figure 2. Measuring Input Ripple Current
voltage enters and remains within its specifi ed regulation band. Actual measured
times will vary with input source impedance, external input capacitance, input volt-
age slew rate and fi nal value of the input voltage as it appears at the converter.
These converters include a soft start circuit to moderate the duty cycle of the
PWM controller at power up, thereby limiting the input inrush current.
+VOUT
The On/Off Remote Control interval from inception to VOUT regulated
RLOAD
SCOPE
assumes that the converter already has its input voltage stabilized above the C1 C2
Start-Up Threshold before the On command. The interval is measured from the
On command until the output enters and remains within its specifi ed accuracy
−VOUT
band. The specifi cation assumes that the output is fully loaded at maximum
rated current.
C1 = 1μF
Input Source Impedance
C2 = 10μF LOW ES
These converters will operate to specifi cations without external components,
LOAD 2-3 INCHES (51-76mm) FROM MODULE
assuming that the source voltage has very low impedance and reason-
Figure 3. Measuring Output Ripple and Noise (PARD)
able input voltage regulation. Since real-world voltage sources have fi nite
impedance, performance is improved by adding external fi lter components.
www.murata-ps.com/support
MDC_UEI Series 30W.B03 Page 13 of 18
UEI30 Series
30W Isolated Wide-Range DC-DC Converters
In critical applications, output ripple and noise (also referred to as periodic an unplanned Over Temperature shut down. Also, these graphs are all collected
and random deviations or PARD) may be reduced by adding fi lter elements near Sea Level altitude. Be sure to reduce the derating for higher altitude.
such as multiple external capacitors. Be sure to calculate component tempera-
Output Overvoltage Protection (OVP)
ture rise from refl ected AC current dissipated inside capacitor ESR.
This converter monitors its output voltage for an over-voltage condition using
Floating Outputs an on-board electronic comparator. The signal is optically coupled to the pri-
Since these are isolated DC/DC converters, their outputs are “fl oating” with mary side PWM controller. If the output exceeds OVP limits, the sensing circuit
respect to their input. The essential feature of such isolation is ideal ZERO will power down the unit, and the output voltage will decrease. After a time-out
CURRENT FLOW between input and output. Real-world converters however do period, the PWM will automatically attempt to restart, causing the output volt-
exhibit tiny leakage currents between input and output (see Specifi cations). age to ramp up to its rated value. It is not necessary to power down and reset
These leakages consist of both an AC stray capacitance coupling component the converter for the this automatic OVP-recovery restart.
and a DC leakage resistance. When using the isolation feature, do not allow
If the fault condition persists and the output voltage climbs to excessive
the isolation voltage to exceed specifi cations. Otherwise the converter may
levels, the OVP circuitry will initiate another shutdown cycle. This on/off cycling
be damaged. Designers will normally use the negative output (-Output) as
is referred to as “hiccup” mode.
the ground return of the load circuit. You can however use the positive output
(+Output) as the ground return to effectively reverse the output polarity.
Output Fusing
The converter is extensively protected against current, voltage and temperature
Minimum Output Loading Requirements
extremes. However, your application circuit may need additional protection. In the
These converters employ a synchronous rectifi er design topology. All models
extremely unlikely event of output circuit failure, excessive voltage could be applied
regulate within specifi cation and are stable under no load to full load conditions.
to your circuit. Consider using an appropriate external protection.
Operation under no load might however slightly increase output ripple and noise.
Output Current Limiting
Thermal Shutdown
As soon as the output current increases to approximately its overcurrent limit,
To protect against thermal over-stress, these converters include thermal shut-
the DC/DC converter will enter a current-limiting mode. The output voltage will
down circuitry. If environmental conditions cause the temperature of the DC/
decrease proportionally with increases in output current, thereby maintaining a
DC’s to rise above the Operating Temperature Range up to the shutdown tem-
somewhat constant power output. This is commonly referred to as power limiting.
perature, an on-board electronic temperature sensor will power down the unit.
Current limiting inception is defi ned as the point at which full power falls
When the temperature decreases below the turn-on threshold, the converter
will automatically restart. There is a small amount of hysteresis to prevent below the rated tolerance. See the Performance/Functional Specifi cations. Note
particularly that the output current may briefl y rise above its rated value. This
rapid on/off cycling. CAUTION: If you operate too close to the thermal limits, the
converter may shut down suddenly without warning. Be sure to thoroughly test enhances reliability and continued operation of your application. If the output
current is too high, the converter will enter the short circuit condition.
your application to avoid unplanned thermal shutdown.
Temperature Derating Curves Output Short Circuit Condition
When a converter is in current-limit mode, the output voltage will drop as
The graphs in this data sheet illustrate typical operation under a variety of condi-
tions. The Derating curves show the maximum continuous ambient air temperature the output current demand increases. If the output voltage drops too low, the
magnetically coupled voltage used to develop PWM bias voltage will also drop,
and decreasing maximum output current which is acceptable under increasing
forced airfl ow measured in Linear Feet per Minute (“LFM”). Note that these are thereby shutting down the PWM controller. Following a time-out period, the
PWM will restart, causing the output voltage to begin rising to its appropriate
AVERAGE measurements. The converter will accept brief increases in temperature
and/or current or reduced airfl ow as long as the average is not exceeded. value. If the short-circuit condition persists, another shutdown cycle will initi-
ate. This on/off cycling is called “hiccup mode.” The hiccup cycling reduces the
Note that the temperatures are of the ambient airfl ow, not the converter
average output current, thereby preventing excessive internal temperatures.
itself which is obviously running at higher temperature than the outside air.
Also note that “natural convection” is defi ned as very fl ow rates which are not
Trimming the Output Voltage
using fan-forced airfl ow. Depending on the application, “natural convection” is
The Trim input to the converter allows the user to adjust the output voltage over
usually about 30-65 LFM but is not equal to still air (0 LFM).
the rated trim range (please refer to the Specifi cations). In the trim equations and
circuit diagrams that follow, trim adjustments use either a trimpot or a single
Murata Power Solutions makes Characterization measurements in a closed
fi xed resistor connected between the Trim input and either the +Vout or –Vout
cycle wind tunnel with calibrated airfl ow. We use both thermocouples and an
terminals. (On some converters, an external user-supplied precision DC voltage
infrared camera system to observe thermal performance. As a practical matter,
may also be used for trimming). Trimming resistors should have a low tempera-
it is quite diffi cult to insert an anemometer to precisely measure airfl ow in
ture coeffi cient (±100 ppm/deg.C or less) and be mounted close to the converter.
most applications. Sometimes it is possible to estimate the effective airfl ow if
Keep leads short. If the trim function is not used, leave the trim unconnected.
you thoroughly understand the enclosure geometry, entry/exit orifi ce areas and
With no trim, the converter will exhibit its specifi ed output voltage accuracy.
the fan fl owrate specifi cations.
There are two CAUTIONs to observe for the Trim input:
CAUTION: If you exceed these Derating guidelines, the converter may have
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MDC_UEI Series 30W.B03 Page 14 of 18
UEI30 Series
30W Isolated Wide-Range DC-DC Converters
CAUTION: To avoid unplanned power down cycles, do not exceed EITHER the Remote On/Off Control
maximum output voltage OR the maximum output power when setting the trim.
On the input side, a remote On/Off Control can be specifi ed with either positive
Be particularly careful with a trimpot. If the output voltage is excessive, the OVP
or negative logic as follows:
circuit may inadvertantly shut down the converter. If the maximum power is
Positive: Models equipped with Positive Logic are enabled when the On/Off
exceeded, the converter may enter current limiting. If the power is exceeded for
pin is left open or is pulled high to +VIN with respect to –VIN. An internal bias
an extended period, the converter may overheat and encounter overtempera-
current causes the open pin to rise to +VIN. Some models will also turn on at
ture shut down.
lower intermediate voltages (see Specifi cations). Positive-logic devices are
CAUTION: Be careful of external electrical noise. The Trim input is a senstive
disabled when the On/Off is grounded or brought to within a low voltage (see
input to the converter’s feedback control loop. Excessive electrical noise may
Specifi cations) with respect to –VIN.
cause instability or oscillation. Keep external connections short to the Trim
Negative: Models with negative logic are on (enabled) when the On/Off is
input. Use shielding if needed.
grounded or brought to within a low voltage (see Specifi cations) with respect to
–VIN. The device is off (disabled) when the On/Off is left open or is pulled high
+VOUT to +15VDC Max. with respect to –VIN.
−VIN
Dynamic control of the On/Off function should be able to sink the speci-
fi ed signal current when brought low and withstand appropriate voltage
when brought high. Be aware too that there is a fi nite time in milliseconds
5-22
(see Specifi cations) between the time of On/Off Control activation and stable,
7
ON/OFF
LOAD
TRIM
TURNS
CONTROL regulated output. This time will vary slightly with output load type and current
and input conditions.
+VIN
+VOUT
−VOUT
+VIN
Figure 4. Trim adjustments using a trimpot
ON/OFF
TRIM LOAD
Trim Equations
CONTROL RTRIM DOWN
Trim Up Trim Down
Frequently asked questions
How does Electronics Finder differ from its competitors?
Is there a warranty for the UEI30-150-Q12N-C?
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Which payment methods does Electronics Finder accept?
Why buy from GID?
Quality
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Access
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