A0505M-1W Datasheet, PDF (2/2 Pages) MORNSUN Science& Technology Ltd. – DUAL/SINGLE OUTPUT,SUPERMINIATURE SIP PACKAGE

COMMON SPECIFICATION
Item
Test Conditions
Min Typ Max Units
Storage humidity
95
%
Operating temperature
-40
85
Storage temperature
Lead temperature
-55
125
°C
15 25
Temp. rise at full load 1.5mm from case for 10 seconds
300
Cooling
Free air convection
Case material
Plastic(UL94-V0)
Short circuit protection*
MTBF
3500
1
S
K hours
Weight
2.1
g
*Supply voltage must be discontinued at the end of short circuit duration.
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.
TYPICAL CHARACTERISTICS
Overload Protection
Under normal operating conditions, the output
circuit of these products has no protection against
overload. The simplest method is to connect a
self-recovery fuse in series at the input end or add a
circuit breaker to the circuit.
Recommended testing and application 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).
Dual Out put
L
Vin
L
+Vo
Co ut
Cin
GN D
DC DC
L ^Cout
0V
-Vo
Singl e Output
L
Vin
L
+Vo
Cin
GN D
DC DC
Co ut
0V
(Figure 1)
Operating Temp.(^oC)
OUTLINE DIMENSIONS & PIN CONNECTIONS
First Angle Projection
RECOMMENDED FOOTPRINT
Top view,grid:2.54*2.54mm(0.1 *0.1inch),
d i ame ter :1 .0 0m m(0 .0 39 i nc h)
Single
0.50
(0.020)
12
4
6
Dua l
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
recommended capacitance of its filter capacitor
sees (Table 1).
EXTERNAL CAPACITOR TABLE (Table 1)
Vin Cin Single Cout Dual Cout
(VDC) (uF) Vout (uF) Vout (uF)
(VDC)
(VDC)
5
4.7
5
10
±5
4.7
12
2.2
9
4.7
±9
2.2
24
1
12
2.2 ±12
1
-
-
15
1
±15 0.47
It’s not recommended to connect any external capacitor in
the application field with less than 0.5 watt output.
12
456
12 4 5 6
Note:
U ni t :m m (in c h)
Pin section:0.50*0.30mm(0.020*0.012inch)
Pin tolerances: 0.10mm( 0.004inch)
General tolerances: 0.25mm( 0.010inch)
FOOTPRINT DETAILS
Pin Single Dual
1
Vin
Vin
2
GND
GND
4
0V
- Vo
5
NC
0V
6
+Vo
+ Vo
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 (A_M –W2/B_LM-W2 series).
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
connected to the input or output end in series
(Figure 2).
Du al Ou t pu t
Vin
RE G
GND
Si ng le O ut put
Vin
RE G
GND
RE G
D C DC
RE G
RE G
D C DC
(Figure 2)
+Vout
0V
-Vout
+Vout
0V
No parallel connection or plug and play.
MORNSUN reserves the copyright
Specifications subject to change without notice.
A_M-1W & B_LM-1W A/1-2008
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