MA-XD-1W&MA-XD-2W

MA-XD-1W&MA-XD-2W

MA-XD-1W&MA-XD-2W

MA-XD-1W&MA-XD-2W

MA-XD-1W&MA-XD-2W

MA-XD-1W&MA-XD-2W

MA-XD-1W&MA-XD-2W

eries

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Technical Enquiries-Email:tech@microdc.cn Tel:0086-20-86000646

Page 2 of 2

COMMON

COMMON

COMMON

COMMON

COMMON

COMMON

COMMON

SPECIFICATION

SPECIFICATION

SPECIFICATION

SPECIFICATION

SPECIFICATION

SPECIFICATION

SPECIFICATION

Parameter

Test conditions

Min.

Typ.

Max

Units

Storage humidity

95

%

Operating temperature

-40

85

℃

Storage temperature

-55

125

℃

Temp. rise at full load

20

30

℃

Lead temperature

1. 5mm from case for 10 seconds

300

℃

Short circuit protection*

1

s

Cooling

Free air convection

Case material

Plastic(UL94-V0)

MTBF

3500

K hours

Weight

11

g

*Supply voltage must be discontinued at the end of short circuit duration.

APPLICATION

APPLICATION

APPLICATION

APPLICATION

APPLICATION

APPLICATION

APPLICATION

NOTE

NOTE

NOTE

NOTE

NOTE

NOTE

NOTE

Requirement

Requirement

Requirement

Requirement on

on

on

on output

output

output

output load

load

load

load

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

load is not

not

not

not less

less

less

less than

than

than

than 10%

10%

10%

10% of

of

of

of the

the

the

the full

full

full

full load

load

load

load, and that this product should never

never

never

never be

be

be

be operated

operated

operated

operated under

under

under

under no

no

no

no

load!

load!

load!

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.

Recommended

Recommended

Recommended

Recommended circuit

circuit

circuit

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 out put

filter capacitor must be proper .If the capacitance is too big, a startup

problem might arise. For every channel of out put , provided the safe

and reliable operation is ensured, the greatest capacitance of its filter

capacitor sees (Table 1).

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

application field with less than 0.5 watt output.

Overload

Overload

Overload

Overload Protection

Protection

Protection

Protection

Under normal operating conditions, the output circuit of these

products has no protection against over-current and short-circuits. The

simplest method is to connect a self-recovery fuse in series at the input

end or add a circuit breaker to the circuit.

Input

Input

Input

Input Over-voltage

Over-voltage

Over-voltage

Over-voltage Protection

Protection

Protection

Protection Circuit

Circuit

Circuit

Circuit

The simplest device for input over-voltage protection is a linear

voltage regulator with overheat protection that is connected to the input

end in series (Figure 2).

When

When

When

When the

the

the

the environment

environment

environment

environment temperature

temperature

temperature

temperature is

is

is

is higher

higher

higher

higher than

than

than

than 71

71

71

71°C,

C,

C,

C, the

the

the

the

product

product

product

product output

output

output

output power

power

power

power should

should

should

should be

be

be

be less

less

less

less then

then

then

then 60%

60%

60%

60% of

of

of

of the

the

the

the rated

rated

rated

rated power.

power.

power.

power.

No

No

No

No parallel

parallel

parallel

parallel connection

connection

connection

connection or

or

or

or plug

plug

plug

plug and

and

and

and play.

play.

play.

play.

TYPICAL

TYPICAL

TYPICAL

TYPICAL

TYPICAL

TYPICAL

TYPICAL

CHARACTERISTICS

CHARACTERISTICS

CHARACTERISTICS

CHARACTERISTICS

CHARACTERISTICS

CHARACTERISTICS

CHARACTERISTICS

TYPICAL

TYPICAL

TYPICAL

TYPICAL

TYPICAL

TYPICAL

TYPICAL

CHARACTERISTICS

CHARACTERISTICS

CHARACTERISTICS

CHARACTERISTICS

CHARACTERISTICS

CHARACTERISTICS

CHARACTERISTICS