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

Specifications subject to change without notice.

A_S-1WR & B_LS-1WR

A/4-2012

Page 2 of 3

INTPUT SPECIFICATIONS

TYPICAL CHARACTERISTICS

Item

Test conditions

Min

Typ

Max

Units

5V input

30/260

12V input

12/110

15V input

12/100

Input current

(No load/Full load)

24V input

7/55

mA

5V input

9

12V input

18

15V input

21

Surge voltage

(1S max)

24V input

30

V

OUTPUT SPECIFICATIONS

Item

Test conditions

Min.

Typ.

Max.

Units

Output power

0.1

1

W

Line regulation

For Vin change of

±1%

±1.1

±1.5

Load regulation

10% to 100% load

10

20

%

Output voltage accuracy

Follow the tolerance envelope graph

Temperature drift

100% full load

±0.03

%/

°C

Ripple & Noise*

20MHz Bandwidth

100

200

mVp-p

Switching frequency

Full load, nominal input

100

kHz

Tolerance Envelope Graph

Temperature Derating Graph

Nominal

Voltage

+2.5%

50%

100%

Output Current %)

(

10%

-2.5%

+10%

+5%

-7.5%

Typical L

o ad Line

Operating Temp.( C)

o

0

20

40

60

80

100

120

-40

0

40

85

120

Safe Operating Area

105

RECOMMENDED CIRCUIT

*Test ripple and noise by

“parallel cable” method. See detailed operation instructions at

Testing of Power Converter section, application notes.

ISOLATION SPECIFICATIONS

Item

Test conditions

Min

Typ

Max

Units

Isolation voltage

Tested for 1 minute and 1

mA max

1000

VDC

Isolation resistance

Test at 500VDC

1000

M

Ω

Isolation Capacitance

Input/Output,100KHz/0.1V

6

15

PF

APPLICATION NOTE

To ensure this module can operate efficiently and reliably, During operation, the

minimum output load could not be less than 10% of the full load. If the actual output

power is very small, please connect a resistor with resistance of 10% rated power at the

output end in parallel, or use our company

’s products with a lower rated output power

Under normal operating conditions, the output circuit of these products has no

protection against overload. The simplest method is to connect a slow-blow fuse in series

at the input end or add a circuit breaker to the circuit.

If you want to further decrease the input ripple or the input inrush current, an

“LC”

filtering network may be connected to the input and output ends of the DC/DC converter,

see (Figure 1).

It should also be noted that the inductance and the frequency of the

“LC” filtering

network should be staggered with the DC/DC frequency to avoid mutual interference.

However, the capacitance of the output filter capacitor must be proper. If the capacitance

is too big, a startup problem might arise. For every channel of output, provided the safe

and reliable operation is ensured, the recommended capacitance of its filter capacitor

sees (Table 1).

The simplest device for output voltage regulation, over-voltage and over-current

protection is a linear voltage regulator with overheat protection that is connected to the

input or output end in series (Figure 2).

D ua l Outp ut

Sing le Ou tput

Vin

GND

+Vo

0V

DC

Cin

L

L

DC

L Cout

Cout

-Vo

L

Vin

GND

+Vo

0V

DC

Cin

L

DC

Cout

Vin

GND

0V

+Vo

DC DC

-Vo

REG

REG

REG

D ua l Outp ut

Sin gle Output

Vin

GND

0V

+Vo

DC DC

REG

REG

Recommended capacitance(Table 1)

Vin

(VDC)

Cin

(

μF)

Single

output

(VDC)

Cout

(

μF)

Dual

output

(VDC)

Cout

(

μF)

5

4.7

5

10

±5

4.7

12

2.2

9

4.7

±9

2.2

15

2.2

12

2.2

±12

1

24

1

15

1

±15

0.47

ceramic capacitor;

2. For applications where output power is less than 0.5W in

reality, external capacitors are not recommended.