2D

eries

http://www.microdc.cn

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

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COMMON

SPECIFICATIONS

Parameter

Conditions

Min.

Typ.

Max.

Units

Storage humidity range

95

%

Operating temperature

-40

85

℃

Storage temperature

-55

125

Lead temperature

1.5mm from case for 10 seconds

300

Temp.rise at full load

15

25

Cooling

Free air convection

Case material

Plastic(UL94-V0)

Short circuit protection*

Continuous

1

s

MTBF

3500

K hours

Weight

2.8

g

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

TYPICAL

CHARACTERISTICS

Temperature Derating Graph

OUTLINE

CONNECTIONS

SIZE Graph

RECOMMENDED FOOTPRINT

Top view,grid:2.54mm(0.1inch)

diameter:1.00mm(0.039inch)

FOOTPRINT DETAILS

Pin

Function

1

VIN

2

GND

4

0V1

5

+V01

6

0V2

7

+V02

Note:

Unit:mm(inch)

Pin section:0.50*0.3mm(0.020*0.012inch)

Pin section tolerances: 0.10mm( 0.004inch)

General tolerances: ±0.25mm(±0.010inch)

Requirement on output load

To ensure this module can operate efficiently and reliably, a minimum load is specified for this kind of DC/DC

converter in addition to a maximum load(namely full load).During operation, make sure the specified range

of input voltage is not exceeded,the minimum output load is not less than 10% of the full load, and that this

product should never be operated under no load!

Filtering

To get the input/output ripple,an "LC"filtering network may be connected to

the input and output ends of the DC/DC converter.Which may produce a more

significant filtering effect.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 see (Figure 1).

In some circuits which are sensitive to noise and ripple.a filtering capacitor

may be added to the DC/DC output end and input end to reduce the noise and

ripple. 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).

EXTERNAL CAPACITOR TABLE (TABLE 1)

Vin

Cin

Vout

Cout

(VDC)

(μF)

(VDC)

(μF)

5

47

5

4.7

12

2.2

9

2.2

24

1.0

12

1.0

--

--

15

0.47

It's not recommend to connect any external capacitor in the application field

with less than 0.5 watt output.

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 conn ect ed to the inp ut or outp ut end in series (Figu re 2) .

When the environment temperature is higher than 71°C, the

product output power should be less than 60% of the

rated power.

No parallel connection or plug and play.

Microdc Professional Power Module,Inc.

Tel:0086-20-86000646 E-mail:tech@microdc.cn

Website:http://www.microdc.cn

RoHS COMPLIANT INFORMATION

This series is compatible with RoHS soldering systems with a peak wave solder temperature

of 300°C for 10 seconds.

The pin termination finish on the SIP package type is Tin Plate, Hot Dipped over Matte Tin

with Nickel Preplate. The DIP types are Matte Tin over Nickel Preplate. Both types in this

series are backward compatible with Sn/Pb soldering systems.

REACH COMPLIANT INFORMATION

This series has proven that this product does not contain harmful chemicals, it also has

harmful chemical substances through the registration, inspection and approval.