URB1D12LMD-10WR3 - Mornsun America

DC/DC Converter

URB1D_LMD-10WR3 Series

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10W isolated DC-DC converter with Ultra-wide Input

and Regulated Single Output

RoHS Patent Protection

FEATURES

Ultra-wide 4:1 input voltage range

High efficiency up to 85%

Reinforced I/O isolation test voltage 2.25k VDC

Operating ambient temperature range -40℃to

+85℃

Input under-voltage protection, output short

circuit, over-current, over–voltage protection

Low output ripple & noise

EN50121-3-2 & CISPR32/EN55032 CLASS A EMI

compliant without external components

EN50155/EN60950 Approval

Designed to meet UL62368/IEC62368 standard

Input Reverse Polarity Protection available with

Chassis (A2S) or DIN-Rail mounting (A4S) version

Industry standard pin-out

URB1D_LMD-10WR3 series of isolated 10W DC-DC converter products with an ultra-wide 4:1 input voltage and feature efficiencies of up to

85%, input to output isolation is tested with 2250VDC and the converter safely operate ambient temperature of -40 ℃to +85℃, input

under-voltage protection, output short-circuit, over-voltage, over-current protection and are offered with various mounting options ideally

suiting electronic equipment and railway vehicle applications using 72V, 96V and 110V battery voltages.

Selection Guide

Certification

Part No. ①

Input Voltage (VDC)

Output

Full Load

Efficiency ③(%)

Min./Typ.

Max.

Capacitive

Load(µF)

Nominal

(Range)

Max.②

Voltage (VDC)

Current (mA)

Max./Min.

URB1D03LMD-10WR3

110

(40-160)

170

3.3

2400/0

74/76

5400

URB1D05LMD-10WR3

2000/0

78/80

5400

URB1D12LMD-10WR3

833/0

82/84

470

URB1D15LMD-10WR3

667/0

82/84

330

URB1D24LMD-10WR3

417/0

83/85

100

Note:

①Use “H” suffix for heat sink mounting, “A2S” suffix for chassis mounting and “A4S” suffix for DIN-Rail mounting. We recommend to choose modules with a heat

sink for enhanced heat dissipation and applications with extreme temperature requirements;

②Absolute maximum stress rating without damage (not recommended);

③Efficiency is measured at nominal input voltage and rated output load; efficiencies for A2S and A4S Model’s is decreased by 2% due to the input reverse

polarity protection circuit.

Input Specifications

Item

Operating Conditions

Min.

Typ.

Max.

Unit

Input Current (full load /

no-load)

Nominal input voltage

3.3V output

95/3

98/8

Others

110/3

117/8

Reflected Ripple Current

Nominal input voltage

Surge Voltage (1sec. max.)

-0.7

180

VDC

Start-up Voltage

100% load

Shut-down Voltage

Start-up Time

Nominal input voltage & constant resistance load

Input Filter

Pi filter

Hot Plug

Unavailable

DC/DC Converter

URB1D_LMD-10WR3 Series

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Output Specifications

Item

Operating Conditions

Min.

Typ.

Max.

Unit

Voltage Accuracy

0%-100% load

±1

±3

Linear Regulation

Input voltage variation from low to high at full load

±0.2

±0.5

Load Regulation

0%-100% load

±0.5

±1

Transient Recovery Time

25% load step change,

nominal input voltage

300

500

µs

Transient Response Deviation

3.3V/5V output

±3

±8

Others

±3

±5

Temperature Coefficient

Full load

±0.02

±0.03

%/℃

Ripple & Noise①

20MHz bandwidth, 5%-100% load

100

mV p-p

Over-voltage Protection

Input voltage range

110

160

%Vo

Over-current Protection

120

210

%Io

Short-circuit Protection

Continuous, self-recovery

Note: ①Ripple & Noise at＜5% load is 5%Vo max. The ”parallel cable” method is used for Ripple and Noise test, please refer to DC-DC Converter Application

Notes for specific information.

General Specifications

Item

Operating Conditions

Min.

Typ.

Max.

Unit

Isolation

Input-output Electric Strength Test for 1 minute with

a leakage current of 1mA max.

2250

VDC

Input/output-case Electric Strength Test for 1 minute

with a leakage current of 1mA max.

1600

Insulation Resistance

Input-output resistance at 500VDC

1000

MΩ

Isolation Capacitance

Input-output capacitance at 100KHz/0.1V

2200

Operating Temperature

See Fig.1

-40

+85

℃

Storage Temperature

-55

+125

Pin Soldering Resistance

Temperature

Soldering spot is 1.5mm away from case for 10

seconds

300

Storage Humidity

Non-condensing

%RH

Vibration

IEC61373 - Category 1, Grade B

Switching Frequency①

PWM Mode

300

KHz

MTBF

MIL-HDBK-217F@25℃

1000

K hours

Note:①Switching frequency is measured at full load. The module reduces the switching frequency for light load (below 50%) efficiency improvement.

Mechanical Specifications

Case Material

Aluminum alloy

Dimensions

Horizontal package (without heat sink)

50.80 × 25.40 × 11.80 mm

Horizontal package (with heat sink)

51.40 × 26.20 × 16.50 mm

A2S chassis mounting (without heat sink)

76.00 × 31.50 × 21.20 mm

A2S chassis mounting (with heat sink)

76.00 × 31.50 × 25.30 mm

A4S Din-rail mounting (without heat sink)

76.00 × 31.50 × 25.80 mm

A4S Din-rail mounting (with heat sink)

76.00 × 31.50 × 29.90 mm

Weight

without heat sink

Horizontal package/A2S chassis mounting/A4S Din-rail

mounting

26.0g/48.0g/68.0g(Typ.)

with heat sink

Horizontal package/A2S chassis mounting/A4S Din-rail

mounting

34.0g/56.0g/76.0g(Typ.)

Cooling Methods

Free air convection

DC/DC Converter

URB1D_LMD-10WR3 Series

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Electromagnetic compatibility (EMC) (EN60950)

Emissions

CISPR32/EN55032 CLASS A (without external components)/ CLASS B (see Fig.3 or Fig.4 for recommended circuit)

Immunity

ESD

IEC/EN61000-4-2 Contact ±6KV/Air ±8KV

perf. Criteria B

IEC/EN61000-4-3 20V/m

perf. Criteria A

EFT

IEC/EN61000-4-4 ±4KV (see Fig.3 or Fig.4 for recommended circuit)

perf. Criteria B

Surge

IEC/EN61000-4-5

line to line ±2KV (2Ω18uF see Fig.3 for recommended circuit)

line to ground ±4KV (12Ω9uF see Fig.3 for recommended circuit)

perf. Criteria B

IEC/EN61000-4-6 10 Vr.m.s

perf. Criteria A

Electromagnetic Compatibility (EMC) (EN50155)

Emissions

EN50121-3-2 150kHz-500kHz 99dBuV

EN55016-2-1 500kHz-30MHz 93dBuV

EN50121-3-2 30MHz-230MHz 40dBuV/m at 10m

EN55016-2-1 230MHz-1GHz 47dBuV/m at 10m

Immunity

ESD

EN50121-3-2 Contact ±6KV/Air ±8KV

perf. Criteria B

EN50121-3-2 20V/m

perf. Criteria A

EFT

EN50121-3-2 ±2kV 5/50ns 5kHz

perf. Criteria A

Surge

EN50121-3-2 line to line ±1KV (42Ω, 0.5μF)

line to ground ±2KV (42Ω, 0.5μF)

perf. Criteria B

EN50121-3-2 0.15MHz-80MHz 10V r.m.s

perf. Criteria A

Note: All the tests are measured under the conditions of inputs capacitor 100uF/200V or FC-CX1D.

Typical Characteristic Curves

Operating Te mperature( )

℃

Temperature De rating Curve

Output Powe r Percen tage( %)

-40 0 40 71 85

100

120

Safe Operating A rea

with heatsink

without heatsink

Fig. 1

DC/DC Converter

URB1D_LMD-10WR3 Series

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Design Reference

1. Typical application

All the DC-DC converters of this series are tested before delivery using the recommended circuit shown in Fig. 2.

Input and/or output ripple can be further reduced by appropriately increasing the input & output capacitor values Cin and Cout and/or by

selecting capacitors with a low ESR (equivalent series resistance). Also make sure that the capacitance is not exceeding the max.

capacitive load value of the product.

DC DC

Vin

G ND

+ Vo

Cin Cout

Fuse

Fig. 2

Vout(VDC)

Fuse

Cin

Cout

3.3/5

2A，slow blow

10µF - 47µF

100µF

12/15

47µF

22µF

2. EMC compliance circuit

+V in

-Vin FC -CX1D DC-DC

+Vo

FUSE

CY 1

CY 2

Vi n

GND

C1 LOAD

Fig. 3

Fig. 3 List of components：

FUSE

Choose according to actual input current

FC-CX1D

FC-CX1D is the EMC auxiliary component of our

company. Input voltage range: 40V-160V

100µF/200V

Refer to the Cin in Fig.2

Refer to the Cout in Fig.2

CY1、CY2

1000pF/400VAC

DC/DC Converter

URB1D_LMD-10WR3 Series

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Fig. 4

Notes: Part ①in the Fig. 4 is used for EMC test and part ②for EMI test

Fig. 4 List of components：

100µF/200V

C1、C2

0.22µF/250V

Refer to the Cin in Fig.2

LCM1

2.2mH(FL2D-10-222)

LCM2

1.1mH

(material:TN150P-RH12.7*12.7*7.9)

CY1、CY2、CY3、CY4

1000pF/400VAC

Refer to the Cout in Fig.2

Notes: FL2D-10-222 is the EMC auxiliary component of our

company.

3. The products do not support parallel connection of their output

4. For additional information about Mornsun EMC Filter products please refer to

www.mornsun-power.com to download the Selection Guide of EMC Filter

Horizontal Package (without heat sink) Dimensions and Recommended Layout

DC/DC Converter

URB1D_LMD-10WR3 Series

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Horizontal Package (with heat sink) Dimensions

URB_LMD-10WR3A2S (without heat sink) Dimensions

DC/DC Converter

URB1D_LMD-10WR3 Series

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URB_LMD-10WHR3A2S (with heat sink) Dimensions

URB_LMD-10WR3A4S (without heat sink) Dimensions

DC/DC Converter

URB1D_LMD-10WR3 Series

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URB_LMD-10WHR3A4S(with heat sink) Dimensions

Note:

1. For additional information on Product Packaging please refer to www.mornsun-power.com. The Packaging bag number of Horizontal

packaging: 58200035(without heat sink), 58200051(with heat sink), A2S/ A4S packaging number: 58220022;

2. The maximum capacitive load offered were tested at input voltage range and full load;

3. Unless otherwise specified, parameters in this datasheet were measured under the conditions of Ta=25℃, humidity<75%RH with nominal

input voltage and rated output load;

4. All index testing methods in this datasheet are based on Company’s corporate standards;

5. Other product application information, please see DC-DC（railway power supply）Converter Application Notes for specific operation

methods;

6. We can provide product customization service, please contact our technicians directly for specific information;

7. Products are related to laws and regulations: see "Features" and "EMC";

8. Our products shall be classified according to ISO14001 and related environmental laws and regulations, and shall be handled by

qualified units.

Mornsun Guangzhou Science & Technology Co., Ltd.

Address: No. 5, Kehui St. 1, Kehui Development Center, Science Ave., Guangzhou Science City, Luogang District, Guangzhou, P. R. China

Tel: 86-20-38601850 Fax: 86-20-38601272 E-mail: sales@mornsun.cn www.mornsun-power.com