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ISOLATION

SPECIFICATIONS

Item

Test conditions

Min.

Typ.

Max.

Units

Isolation voltage

Tested for 1 minute and 1 mA max

3000

VDC

Isolation resistance

Test at 500VDC

1000

MΩ

TYPICAL

CHARACTERISTICS

APPLICATION

NOTE

Requirement on output load

To ensure this module can operate efficiently and reliably, During operation, the minimum output load is not

less than 10% of the full load, and that this product should never be operated under no 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_XD-1W/F_XD-1W

Series).

Recommended 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 recommended capacitance of its filter

capacitor sees (Table 1).

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 (Figure 2).

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.

No parallel connection or plug and play.

RECOMMENDED

CIRCUIT

Dual Output

(Figure 1)

Dual Output

(Figure 2)

EXTERNAL CAPACITOR TABLE (TABLE 1)

Vin

(VDC)

Cin

(uF)

Single

Vout

(VDC)

Cout

(uF)

Dual

Vout

(VDC)

Cout

(uF)

5

4.7

3.3/5

10

±

5

4.7

12

2.2

9

4.7

±

9

2.2

24

1

12

2.2

±

12

1

-

-

15

1

±

15

1

It's not recommended to connect any external capacitor in the

application field with less than 0.5 watt output.

OUTPUT

SPECIFICATIONS

Item

Test conditions

Min.

Typ.

Max.

Units

Output power

0.2

2

W

Line regulation

For Vin change of

±

1%

(3.3V output)

±

1.5

%

(Others output)

±

1.2

%

Load regulation

10% to 100% load

(3.3V output)

12

20

%

(5V output)

10

15

%

(9V output)

8.3

10

%

(12V output)

6.8

10

%

(15V output)

6.3

10

%

Output voltage accuracy

See tolerance envelope graph

Temperature drift

100% full load

±

0.03

%/℃

Ripple& Noise*

20MHz Bandwidth

75

150

mVp-p

Switching frequency

Full load, nominal input

70

KHz

*Test ripple and noise by “parallel cable”method.

See detailed operation instructions at Testing of Power Converter section, application notes.

Note: Dual output models unbalanced load: ±5%.