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

Specifications subject to change without notice.

E_T-1W&F_T-1W

B/0-2010

Page 2 of 3

ISOLATION SPECIFICATIONS

TYPICAL CHARACTERISTICS

Item

Test Conditions

Min.

Typ.

Max.

Units

Isolation voltage

Tested for 1 minute and 1mA max

3000

VDC

Isolation resistance

Test at 500VDC

1000

M

Ω

OUTPUT SPECIFICATIONS

Item

Test Conditions

Min.

Typ.

Max.

Units

Output power

0.1

1

W

For Vin change of

±1%(3.3V output)

±1.5

Line regulation

For Vin change of

±1%(Others output)

±1.2

10% to 100% load (3.3V output)

15

20

10% to 100% load (5V output)

12.8

15

10% to 100% load (9V output)

8.3

10

10% to 100% load (12V output)

6.8

10

10% to 100% load (15V output)

6.3

10

Load regulation

10% to 100% load (24V output)

6.0

10

%

Output voltage accuracy

See tolerance envelope

graph

Temperature drift

100% full load

±0.03 %/°C

E_T-1W series

50

75

Output ripple &Noise*

20MHz

Bandwidth

F_T-1W series

75

100

mVp-p

24V input

500

Switching frequency

Full load, nominal input

Others

100

kHz

*Test ripple and noise by

“parallel cable” method. See detailed operation instructions at Testing of Power

Converter section, application notes.

Operating Temp.( C)

o

RECOMMENDED REFLOW SOLDERING PROFILE

RECOMMENDED CIRCUIT

0

50

1 00

1 50

2 00

2 50

Ti me ( s ec .)

22 0C

o

1 0

M ax

S ec

26 0C

o

90

M ax

( >22 0 C)

o

Se c

Remark: The curve applies only to the hot air reflow soldering

APPLICATION NOTE

1) Requirement on output load

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 proper resistance at the output end in parallel to

increase the load, or use our company

’s products with a lower rated output power

(E _T-W2/F_T-W2 Series).

2) Recommended testing circuit

If you want to further decrease the input/output ripple, 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 greatest capacitance of its filter capacitor sees (Table 1).

3) Output Voltage Regulation and Over-voltage Protection Circuit

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 (Figure2).

4) Overload Protection

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

against overload. The simplest method is to connect a self-recovery fuse in series at the

input end or add a circuit breaker to the circuit.

5) No parallel connection or plug and play

Vin

GND

+Vo

0V

DC

Cin

L

L

DC

L Cout

Cout

-Vo

Dual Output

L

Si ngl e Output

Vin

GND

+Vo

0V

DC

Cin

L

DC

Cout

(Figure 1)

Vin

GND

0V

+Vout

DC DC

-Vout

R EG

REG

REG

Dual O u tput

S ingle O utput

Vin

GND

0V

+Vout

DC DC

R EG

REG

(Figure2)

EXTERNAL CAPACITOR TABLE (Table 1)

Vin

(VDC)

Cin

(

µF)

Single

Vout

(VDC)

Cout

(

µF)

Dual

Vout

(VDC)

Cout

(

µF)

3.3/5

4.7

5

10

±3.3/5

4.7

12

2.2

9

4.7

±9

2.2

24

1

12

2.2

±12

1

-

-

15

1

±15

1

24

0.47

±24

0.47

It

’s not recommended to connect any external

capacitor in the application field with less than 0.5 watt

output.