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Specifications subject to change without notice.

IA_KP-*W

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

20

30

Lead temperature)

1.5mm from case for 10 seconds

300

°C

Short circuit protection*

1

s

Cooling

Free air convection

Case material

Plastic(UL94-V0)

MTBF

3500

K hours

Weight

11

g

TYPICAL CHARACTERISTICS

Operating Temp.(

)

C

Temperature Derating Graph

OUTLINE DIMENSIONS & PIN CONNECTIONS

FOOTPRINT DETAILS

Pin

Duals

1,24

12,13

2,23

11,14

3,10,15,22

Vin

GND

-Vo

+Vo

0V

2 3

12

11

1

10

14 13

22

23

24

15

RECOMMENDED FOOTPRINT

diameter:1.00mm(0.039inch)

Note:

Unit:mm(inch)

Pin diameter:0.50mm (0.020inch)

Pin diameter tolerances: 0.10mm( 0.004inch)

General tolerances: 0.25mm( 0.010inch)

10 11

15 14

31.80

2.00

(0.079)

9.50

(0.374)

24

1

12

(1.252)

23

2

22

3

4.10

First Angle Projection

(Bottom Vie w)

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.

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).

Vin

GND

+Vo

0V

DC

Cin

L

L

DC

L Co ut

Cout

-Vo

(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).

EXTERNAL CAPACITOR TABLE (Table 1)

Vin(VDC)

Cin(uF)

Vout(VDC) Cout(uF)

5

4.7

±5

4.7

12

2.2

±9

2.2

24

1

±12

1

-

-

±15

0.47

It

’s not recommended to connect any external capacitor in

the application field with less than 0.5 watt output.

Overload 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 Over-voltage Protection 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).

Vin

GND

0V

+Vout

DC DC

-Vout

REG

(Figure 2)

When the environment temperature is higher

than 71

°C, the product output power should be

less then 60% of the rated power.

No parallel connection or plug and play.