VRB2405LD-15WR3 - Mornsun America

DC/DC Converter

VRB_LD-15WR3 Series

2018.12.17-A/5 Page 1 of 9

MORNSUN Guangzhou Science & Technology Co., Ltd. reserves the copyright and right of final interpretation

Selection Guide

Certification

Part No. ①

Input Voltage (VDC)

Output

Full Load

Efficiency③(%)

Min./Typ.

Max. Capacitive

Load(µF)

Nominal

(Range)

Max. ②

Voltage (VDC)

Current (mA)

Max./Min.

UL/CE/CB

VRB2405LD-15WR3

(18-36)

3000/0

87/89

4700

VRB2412LD-15WR3

1250/0

87/89

1000

VRB2415LD-15WR3

1000/0

87/89

820

VRB2424LD-15WR3

625/0

88/90

270

VRB4803LD-15WR3

(36-75)

3.3

4000/0

81/83

4700

UL/CE/CB

VRB4805LD-15WR3

3000/0

86/88

4700

VRB4812LD-15WR3

1250/0

86/88

1000

VRB4815LD-15WR3

1000/0

87/89

820

VRB4824LD-15WR3

625/0

87/89

270

Notes：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;

②Exceeding the maximum input voltage may cause permanent damage;

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)

24VDC input

5V output

702/30

718/75

Others

702/5

718/10

48VDC input

3.3V/5V output

355/20

363/30

Others

351/5

363/10

Reflected Ripple Current

24VDC input

48VDC input

Surge Voltage (1sec. max.)

24VDC input

-0.7

VDC

15W isolated DC-DC converter,

Wide input and regulated single output

CB Patent Protection RoHS

FEATURES

Wide 2:1 input voltage range

High efficiency up to 90%

No-load power consumption as low as 0.12W

I/O isolation test voltage 1.5K VDC

Input under-voltage protection, output short-circuit,

over-current, over-voltage protection

Operating ambient temperature range: -40℃~

+85℃

Meets CISPR32/EN55032 CLASS A, without extra

components

Six-sided metal shielding package

Input reverse polarity protection available with

chassis (A2S) or 35mm Din-rail mounting (A4S)

version

IEC60950/UL60950/EN60950 approved

VRB_LD-15WR3 series of isolated 15W DC-DC products with a 2:1 input voltage range. They feature efficiencies of up to 90%, 1500VDC input

to output isolation, operating ambient temperature range of -40℃~ +85℃, input under-voltage protection, output short-circuit,

over-voltage, over-current protection. They meet CLASS A of CISPR32/EN55032 EMI standards without external components, optional

packages are offered for chassis or DIN-rail mounting (A2S, A4S), adding additional input reverse polarity protection and they are widely

used in applications such as data transmission device, battery power supplies, tele-comunication device, distributed power supply system,

hybrid module system, remote control system, industrial robot system fields.

DC/DC Converter

VRB_LD-15WR3 Series

2018.12.17-A/5 Page 2 of 9

MORNSUN Guangzhou Science & Technology Co., Ltd. reserves the copyright and right of final interpretation

Surge Voltage (1sec. max.)

48VDC input

-0.7

100

VDC

Start-up Voltage

24VDC input

VDC

48VDC input

Under-voltage protection

24VDC input

15.5

48VDC input

Start-up Time

Nominal input voltage & constant

resistance load

Input Filter

Pi filter

Ctrl *

Module on

Ctrl pin open or pulled high (3.5-12VDC)

Module off

Ctrl pin pulled low to GND (0-1.2VDC)

Input current when off

Hot Plug

Unavailable

Note: *The Ctrl pin voltage is referenced to input GND.

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

Nominal input voltage

±0.5

±1

Transient Recovery Time

25% load step change,

Nominal input voltage

300

500

µs

Transient Response Deviation

3.3V output

±5

±8

Others

±3

±5

Temperature Coefficient

Full load

±0.03

%/℃

Ripple & Noise*

20MHz bandwidth, 5% -100% load

100

mVp-p

Trim

Input voltage range

110

%Vo

Over-voltage Protection

110

160

Over-current Protection

110

190

%Io

Short-circuit Protection

Hiccup, continuous, self-recovery

Note: *Ripple & 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.

1500

VDC

Insulation Resistance

Input-output resistance at 500VDC

1000

MΩ

Isolation Capacitance

Input-output

capacitance at

100KHz/0.1V

VRB2424LD-15W(H)R3(A2S/A4S)

VRB4824LD-15W(H)R3(A2S/A4S)

2050

Others

1050

Operating Temperature

See Fig. 1

-40

+85

℃

Storage Temperature

-55

+125

Storage Humidity

Non-condensing

%RH

Pin Soldering Resistance

Temperature

Soldering spot is 1.5mm away from case for 10

seconds

300

℃

Vibration

10-55Hz, 10G, 30 Min. along X, Y and Z

Switching Frequency *

PWM mode

270

KHz

MTBF

MIL-HDBK-217F@25℃

1000

K hours

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

DC/DC Converter

VRB_LD-15WR3 Series

2018.12.17-A/5 Page 3 of 9

MORNSUN Guangzhou Science & Technology Co., Ltd. reserves the copyright and right of final interpretation

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 package ( without heat sink)

76.00 × 31.50 × 21.20 mm

A2S chassis package( with heat sink)

76.00 × 31.50 × 25.30 mm

A4S Din-rail package( without heat sink)

76.00 × 31.50 × 25.80 mm

A4S Din-rail package( with heat sink)

76.00 × 31.50 × 29.90 mm

Weight

without heat sink

Horizontal package/A2S chassis package/A4S Din-rail package

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

with heat sink

Horizontal package/A2S chassis package/A4S Din-rail package

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

Cooling Method

Free air convection

Electromagnetic Compatibility (EMC)

Emissions

Others

CISPR32/EN55032 CLASS A (without external components)/ CLASS B (see Fig.3-②

for recommended circuit)

3.3V output

CISPR32/EN55032 CLASS B (see Fig.3-②for recommended circuit)

Others

CISPR32/EN55032 CLASS A (without external components)/ CLASS B (see Fig.3-②

for recommended circuit)

3.3V output

CISPR32/EN55032 CLASS B (see Fig.3-②for recommended circuit)

Immunity

ESD

IEC/EN61000-4-2 Contact ±4KV

perf. Criteria B

IEC/EN61000-4-3 10V/m

perf. Criteria A

EFT

IEC/EN61000-4-4 ±2KV (see Fig.3-①for recommended circuit)

perf. Criteria B

Surge

IEC/EN61000-4-5 line to line ±2KV (see Fig.3-①for recommended circuit)

perf. Criteria B

IEC/EN61000-4-6 3 Vr.m.s

perf. Criteria A

Voltage dips, short

interruptions and voltage

variations immunity

IEC/EN61000-4-29 0%, 70%

perf. Criteria B

Typical Characteristic Curves

Fig. 1

DC/DC Converter

VRB_LD-15WR3 Series

2018.12.17-A/5 Page 4 of 9

MORNSUN Guangzhou Science & Technology Co., Ltd. reserves the copyright and right of final interpretation

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 specified

max. capacitive load value of the product.

DC DC

Vin

GND

+Vo

Cin

Cout

Vin

GND

+Vo

Cin

Cout

DC DC

-Vo

Cout

Dual

Single

Fig. 2

Vout (VDC)

Cout

(µF)

Cin

(µF)

3.3/5

470

100

12/15

220

100

2. EMC compliance circuit

Fig. 3

Notes: For EMC tests we use Part ①in Fig. 3 for immunity and part ②

for emissions test. Selecting based on needs.

Parameter description

Model

Vin:24V

Vin:48V

FUSE

Choose according to actual input current

C0/C3

330µF/50V

330µF/100V

1µF/50V

4.7µF/100V

Refer to the Cout in Fig.2

LDM1

4.7µH/2.2A

CY1/CY2

1nF/2KV

DC/DC Converter

VRB_LD-15WR3 Series

2018.12.17-A/5 Page 5 of 9

MORNSUN Guangzhou Science & Technology Co., Ltd. reserves the copyright and right of final interpretation

3. Trim Function for Output Voltage Adjustment (open if unused)

Vref

Trim

Vo’

Vref

Trim

Vo’

Trim up Trim down

TRIM resistor connection (dashed line shows internal resistor network)

Calculating Trim resistor values:

up: a= Vref

Vo’-Vref R1

R =TaR2

R -a2-R3

down: a= Vref

Vo’-Vref R2

R =TaR1

R -a1-R3

Vout(V)

R1(KΩ)

R2(KΩ)

R3(KΩ)

Vref(V)

3.3

4.801

2.87

12.4

1.24

2.883

2.87

2.5

11.000

2.87

2.5

14.494

2.87

2.5

24.872

2.87

17.8

2.5

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

5. For additional information please refer to DC-DC converter application notes on

www.mornsun-power.com

Horizontal Package (without heat sink) Dimensions and Recommended Layout

DC/DC Converter

VRB_LD-15WR3 Series

2018.12.17-A/5 Page 6 of 9

MORNSUN Guangzhou Science & Technology Co., Ltd. reserves the copyright and right of final interpretation

Horizontal Package (with heat sink) Dimensions

VRB_LD-15WR3A2S(without heat sink) Dimensions

DC/DC Converter

VRB_LD-15WR3 Series

2018.12.17-A/5 Page 7 of 9

MORNSUN Guangzhou Science & Technology Co., Ltd. reserves the copyright and right of final interpretation

VRB_LD-15WHR3A2S(with heat sink) Dimensions

VRB_LD-15WR3A4S(without heat sink) Dimensions

DC/DC Converter

VRB_LD-15WR3 Series

2018.12.17-A/5 Page 8 of 9

MORNSUN Guangzhou Science & Technology Co., Ltd. reserves the copyright and right of final interpretation

VRB_LD-15WHR3A4S(with heat sink) Dimensions

DC/DC Converter

VRB_LD-15WR3 Series

2018.12.17-A/5 Page 9 of 9

MORNSUN Guangzhou Science & Technology Co., Ltd. reserves the copyright and right of final interpretation

Notes:

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 corporate standards;

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

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

7. 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: info@mornsun.cn www.mornsun-power.com