IA_KP-*W Series
1W/2W/3W, FIXED INPUT, ISOLATED & REGULATED
DUAL OUTPUT DC-DC CONVERTER
multi-country patent protection
FEATURES
Low ripple
Good dynamic feature
1KVDC Isolation
DIP Package
Temperature Range: -40°C to +85°C
UL94-V0 Package
No Heatsink Required
No External Component Required
Internal SMD construction
RoHS Compliance
RoHS
Efficiency
(%, Typ)
64
65
62
63
64
64
62
64
65
63
65
66
65
68
64
65
63
66
67
68
69
PRODUCT PROGRAM
Input
Part
Number
IA0512KP-1W
IA0515KP-1W
IA0509KP-2W *
IA0512KP-2W
IA0515KP-2W
IA0512KP-3W
IA0515KP-3W
IA1212KP-1W *
IA1215KP-1W *
IA1209KP-2W
5
4.75-5.25
Voltage (VDC)
Nominal
Range
Voltage
(VDC)
±12
±15
±9
±12
±15
±12
±15
±12
±15
±9
12
11.4-12.6
±12
±15
±12
±15
±12
±15
±9
24
22.8-25.2
±12
±15
±12
±15
Output
Current (mA)
Max
±42
±33
±100
±83
±67
±100
±100
±42
±33
±100
±83
±67
±100
±100
±42
±33
±100
±83
±67
±100
±100
Min
±5
±4
±10
±9
±7
±10
±10
±5
±4
±10
±9
±7
±10
±10
±5
±4
±10
±9
±7
±10
±10
APPLICATIONS
The IA_KP-3W & IA_KP-2W & IA_KP-1W
Series are specially designed for applications
where a group of polar power supplies are
isolated from the input power supply in a
distributed power supply system on a circuit
board.
These products apply to:
1) Where the voltage of the input power
supply is fixed (voltage variation
≤±5%);
2) Where isolation is necessary between
input
and
output
(isolation
voltage
≤1000VDC);
3) Where the regulation of the output voltage
and the output ripple noise are demanded.
IA1212KP-2W
IA1215KP-2W *
IA1212KP-3W *
IA1215KP-3W
IA2412KP-1W *
IA2415KP-1W
IA2409KP-2W *
IA2412KP-2W
IA2415KP-2W
IA2412KP-3W
IA2415KP-3W *
* Designing.
ISOLATION SPECIFICATIONS
Item
Isolation voltage
Isolation resistance
Test conditions
Tested for 1 minute and 1mA max
Test at 500VDC
Min
1000
1000
Typ
Max
Units
VDC
MΩ
OUTPUT SPECIFICATIONS
MODEL SELECTION
Item
Line regulation
Output voltage accuracy
Temperature drift
Output ripple*
Output Noise*
Test Conditions
For Vin change of
±5%(1W&2W)
For Vin change of
±5%(3W)
10% to 100% full load
100% full load
100% full load
20MHz Bandwidth(1W)
20MHz Bandwidth(2W&3W)
20MHz Bandwidth(1W&2W)
20MHz Bandwidth(3W)
Full load, nominal input
Min
Typ
Max
±0.25
±0.3
±1
±3
0.03
Units
IA0 512KP-3W
Rated Powe r
Pac ka ge St yle
Out put Vol ta ge
Inp ut Voltag e
Product Ser ies
%
%/°C
10
20
50
150
75
20
40
150
300
KHz
mVp-p
MORNSUN Science& Technology co.,Ltd.
Address:
2th floor 6th building, Hangzhou
Industrial District, Guangzhou, China
Tel: 86-20-38601850
Fax: 86-20-38601272
http://www.mornsun-power.com
Switching frequency
*Test ripple and noise by
“parallel
cable” method. See detailed operation instructions at Testing of Power
Converter section, application notes.
Note:
1. All specifications measured at TA=25°C, humidity<75%, nominal input voltage and rated output load unless
otherwise specified.
2. See below recommended circuits for more details.
MORNSUN reserves the copyright
Specifications subject to change without notice.
IA_KP-*W
A/1-2008
Page 1 of 2
COMMON SPECIFICATION
Item
Storage humidity
Operating temperature
Storage temperature
Temp. rise at full load
Lead temperature)
Short circuit protection*
Cooling
Case material
MTBF
Weight
*
Supply voltage must be discontinued at the end of short circuit duration.
3500
11
1.5mm from case for 10 seconds
-40
-55
20
Test conditions
Min
Typ
Max
95
85
125
30
300
1
Free air convection
Plastic(UL94-V0)
K hours
g
s
°C
Units
%
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).
L
L
Vin
Cin
+Vo
Cout
DC DC
(Figure 1)
GND
L Co ut
0V
-Vo
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)
TYPICAL CHARACTERISTICS
Temperature Derating Graph
Vin(VDC)
5
12
24
-
Operating Temp.(
C
)
Cin(uF)
4.7
2.2
1
-
Vout(VDC) Cout(uF)
±5
4.7
±9
2.2
±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.
OUTLINE DIMENSIONS & PIN CONNECTIONS
Overload Protection
Under normal operating conditions, the output
circuit of these products has no protection against
over-current
and
short-circuits.
The
simplest
First Angle Projection
RECOMMENDED FOOTPRINT
Top
view,grid:2.54mm(0.1inch)
diameter:1.00mm(0.039inch)
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).
31.80(1.252)
2.53
(0.100)
9.50
(0.374)
(0.799)
(0.600)
1 2 3
10 11 12
24 23 22
15 14 13
(Bottom View)
24 2322
1514
1 2 3
10 11 12
2.00
(0.079)
4.10
FOOTPRINT DETAILS
Pin
1,24
2,23
3,10,15,22
11,14
12,13
Duals
Vin
-Vo
0V
+Vo
GND
Vin
GND
REG
+Vout
DC DC
(Figure 2)
0V
-Vout
Note:
Unit:mm(inch)
Pin diameter:0.50mm (0.020inch)
Pin diameter tolerances: 0.10mm( 0.004inch)
General tolerances: 0.25mm( 0.010inch)
When the environment temperature is higher
than 71°C, the product output power should be
less then 60% of the rated power.
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.
No parallel connection or plug and play.
MORNSUN reserves the copyright
Specifications subject to change without notice.
IA_KP-*W
A/1-2008
Page 2 of 2
Embedded System
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