The copyright and authority for the interpretation of the products are reserved by Mornsun

Specifications subject to change without notice.

VRA_LD-15W & VRB_LD-15W

A/4-2009

Page 1 of 3

VRA_LD-15W & VRB_LD-15W Series

15W, WIDE INPUT , ISOLATED & REGULATED

SINGLE/DUAL OUTPUT DC-DC CONVERTER

FEATURES

PRODUCT PROGRAM

Input

Output

Voltage (VDC)

Part

Number

Nominal

Range

Max*

Voltage

(VDC)

Current

(mA)

Efficiency

(%)

Capacitor

Load Max

VRA1205LD-15W

±5

±1500

82

±1020

VRA1212LD-15W

±12

±625

85

±495

VRA1215LD-15W

±15

±500

85

±165

VRB1203LD-15W

3.3

4000

79

10500

VRB1205LD-15W

5

3000

82

4020

VRB1212LD-15W

12

1250

85

1035

VRB1215LD-15W

12

9 -18

20

15

1000

84

705

VRA2405LD-15W

±5

±1500

84

±1020

VRA2412LD-15W

±12

±625

86

±495

VRA2415LD-15W

±15

±500

86

±165

VRB2403LD-15W

3.3

4000

80

10500

VRB2405LD-15W

5

3000

83

4020

VRB2412LD-15W

12

1250

85

1035

VRB2415LD-15W

24

18 -36

40

15

1000

85

705

VRA4805LD-15W

±5

±1500

85

±1020

VRA4812LD-15W

±12

±625

87

±495

VRA4815LD-15W

±15

±500

87

±165

VRB4803LD-15W

3.3

4000

81

10500

VRB4805LD-15W

5

3000

83

4020

VRB4812LD-15W

12

1250

86

1035

VRB4815LD-15W

48

36-75

80

15

1000

86

705

* Input voltage can

’t exceed this value, or will cause the permanent damage.

INPUT SPECIFICATIONS

Item

Test conditions

Min.

Typ.

Max.

Units

12 Vin models

9

24 Vin models

17.8

Start-up voltage

48 Vin models

35.8

VDC

Input filter

L-C

Start-up time

10

mS

On

3.5 - 40VDC or open

Ctrl

Off

0-1.2VDC

OUTPUT SPECIFICATIONS

Item

Test conditions

Min.

Typ.

Max.

Units

Output voltage accuracy

Refer to recommended circuit

±1

±3

Load regulation

From 10% to 100% load

±0.5

±1

Line regulation

Input voltage from low to high

±0.2

±0.5

Cross regulation(Dual)

±5

%

Ripple and noise

20MHz Bandwidth

75

150

mV

Transient recovery time

200

300

uS

Transient peak deviation

25% load step change

±3

±5

%Vo

Over current protection

Input voltage range

120

130

150

%

Output Short Circuit

Input voltage range

Hiccup, automatic recovery

Trim

±10%Vo

VDC

● Efficiency up to 87%

● Wide (2:1) Input Range

● 1.5KVDC Input/Output Isolation

● Short Circuit Protection(automatic recovery)

● Operating Temperature: -40°C to +85°C

● Internal SMD construction

● Metal Shielding Package

● Industry Standard Pin out

● MTBF>1,000,000 hours

● RoHS Compliance

APPLICATION

The VRA_LD-15W & VRB_LD-15W series offer

15W of output, the VRA_LD-15W & VRB_LD-15W

series with 2:1 wide input voltage of 9-18, 18-36

and 36-75VDC and features 1500VDC isolation,

short-circuit and over current protection, as well as

six

sided shielding. All models are particularly

suited

to

tele-communications,

industrial,

test

equipments power.

MODEL SELECTION

VRB2405LD-15W

Product Series

Input Voltage

Output Voltage

Package Style

Rated Power

MORNSUN Science & Technology co.,Ltd.

Address: 2th floor 6th building, Huangzhou Industrial

District, Guangzhou, China

Tel: 86-20-38601850

Fax: 86-20-38601272

Http://www.mornsun-power.com

Temperature drift (Vout)

±0.02

±0.03

%/

°C