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Specifications subject to change without notice

PWA_MD-6W & PWB_MD-6W

A/1-2008

Page 2 of 2

COMMON SPECIFICATION

Item

Test Conditions

Min

Typ

Max

Units

Storage Humidity

95

%

Operating temperature

-40

85

Storage temperature

-55

125

Temp. rise at full load

40

Lead Temperature

1.5mm from case for 10 seconds

300

°C

Cooling

Free air convection

Case material

Copper, Nickel plated

Short circuit protection

Continuous, automatic recovery

Isolation voltage

Tested for 1 minute and 1 mA max

1500

VDC

Isolation resistance

Test at 500VDC

1000

M

Ω

MTBF

1000

K hours

Weight

17

g

Note:

unless otherwise specified.

2. See below recommended circuits for more details.

TYPICAL CHARECTERISTICS

Operating Temp.(

)

C

Temperature Derating Graph

Safe Operating Area

OUTLINE DIMENSIONS & FOOTPRINT DETAILS

2 3

9

11

14

16

22

23

32.00

2.54

(1.260)

(0.100)

2 3

11

14

16

22

23

2 3

9

11

14

16

22

23

2,3

9

11

14

16

22,23

G ND

NP

NC

+Vo

0V

Vin

GND

COM

-Vo

+Vo

COM

Vin

NC:No connect ion

RECO MMENDED FO OT PRINT

di ameter:1.00mm(0 .03 9inch)

Firs t Angle Projection

Dual Output

Single Output

Note:

Unit :mm(inch)

Pin section:0. 50*0 .30mm(0.020*0.012in ch)

Pin tolerances: 0 .10 mm( 0.004 inch)

General tolerances: 0 .25mm( 0.0 10inch)

FO OTPRINT DETAILS

Pin

Single

Dual

5.08

(0.200)

(Bottom View)

(Side View)

APPLICATION NOTE

Requirement On Output Load

In order to ensure the product operate efficiently and reliably, in addition to a max load

(namely full load), a minimum load is specified for this kind of DC/DC converter. Make sure

the specified range of input voltage is not exceeded, the minimum output load no less than

10% load. If the actual load is less than the specified minimum load, the output ripple may

increase sharply while its efficiency and reliability will reduce greatly. If the actual output

power is very sm all, please add an appropriate resistor as extra loading, or contact our

company for other lower output power products.

Recommended Circuit

All the PWA_MD-6W & PWB_MD-6W Series

have been tested according to the following

recommended

testing

circuit

before

leaving

factory. (See Figure 1).

DC

DC

Vin

GND

+Vout

0V

Cin

Vin

GND

+Vout

0V

Cin

DC

DC

-Vout

Single output

(Figure 1)

If you want to further decrease the input/output

ripple, you can increase capacitance properly or

choose capacitors with low ESR. 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). General:

Cin:

24V&48V

10

μF-47μF

Cout: 10

μF/100mA

Output External Capacitor Table (Table 1)

Single Vout

(VDC)

Cout

(uF)

Daul Vout

(VDC)

Cout

(uF)

3.3

2200

±5

680

5

1000

±12

330

12

470

±15

220

15

330

±24

100

24

220

-

-

Input Current

When it is used in unregulated power supply,

be sure that the fluctuating range of the power

supply and the rippled voltage do not exceed the

module standard. Input current of power supply

should afford the startup current of this kind of

DC/DC module (See figure 2), General:

Ip

≤1.4*Iin-max

Input Voltage (V)

Input Voltage

Range

Ip

No parallel connection or plug and play.