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A_S-1W & B_LS-1W Series
1W, FIXED INPUT, ISOLATED & UNREGULATED DUAL/SINGLE OUTPUT DC-DC CONVERTER
RoHS
FEATURES High Efficiency up to 80% 1KVDC Isolation SIP Package Internal SMD Construction Temperature Range: -40C to +85C No Heat sink Required No External Component Required Industry Standard Pinout RoHS Compliance
PRODUCT PROGRAM
Input Part Number B0303LS-1W B0305LS-1W A0505S-1W A0509S-1W A0512S-1W A0515S-1W B0505LS-W5 B0505LS-1W B0509 LS-1W B0512 LS-1W B0515 LS-1W A1205S-1W A1209S-1W A1212S-1W A1215S-1W B1203 LS-1W B1205 LS-1W B1209 LS-1W B1212 LS-1W B1215 LS-1W A1505S-1W B1515LS-1W A2405S-1W A2409S-1W A2412S-1W A2415S-1W B2405 LS-1W B2409 LS-1W B2412 LS-1W B2415 LS-1W B2424LS-1W Voltage (VDC) Nominal 3.3 Range 3.0-3.6 Voltage (VDC) 3.3 5 5 9 12 15 5 5 9 12 15 5 9 12 15 3.3 5 9 12 15 5 15 5 9 12 15 5 9 12 15 24 Output Current (mA) Max 303 200 100 56 42 33 100 200 111 83 67 100 56 42 33 303 200 111 83 67 100 67 100 56 42 33 200 111 83 67 42 Min 31 20 10 6 5 4 10 20 12 9 7 10 6 5 4 31 20 12 9 7 10 7 10 6 5 4 20 12 9 7 4 72 74 72 77 79 80 68 70 78 78 80 72 78 79 78 73 71 76 78 79 72 75 73 79 80 80 73 78 78 79 78 Efficiency (%, Typ) Certificate
UL UL UL UL UL CE UL CE UL CE UL CE UL UL UL UL UL CE UL CE UL CE UL CE
5
4.5-5.5
APPLICATIONS
The A_S-1W & B_LS-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 10%); 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 not demanding. Such as: purely digital circuits, ordinary low frequency analog circuits, and IGBT power device driving circuits.
12
10.8-13.2
15
13.5-16.5
24
21.6-26.4
UL UL UL UL UL CE UL CE UL CE UL CE
MODEL SELECTION
A0505S-1W
P acka ge S tyl e Ou tp ut Vo lta g e Inpu t Volta ge P rod uct S erie s
Note: The A_S-W2/B_LS-W2 series also are available in our company.
COMMON SPECIFICATIONS
Item Operating Temp. Range Storage Temp. Range Storage humidity range Cooling Temp. rise at full load Lead temperature Isolation voltage Isolation resistance Short circuit protection* Case material MTBF Weight Test conditions Max Units 85 C 125 95 % Free air convection 15 25 C 300 1000 VDC 1000 M 1 s Plastic (UL94-V0) 3500 K hours 2.1 G Min -40 -55 Typ
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
1.5mm from case for 10 seconds Tested for 1 minute and 1 mA max Test at 500VDC
*Supply voltage must be discontinued at the end of short circuit duration.
MORNSUN reserves the copyright
Specifications subject to change without notice.
A_S-1W & B_LS-1W
A/1-2007
Page 1 of 2
OUTPUT SPECIFICATIONS
Item Output power Line regulation Test conditions For Vin change of 1% (3.3 output) (5V output) (9V output) (12V output) (15V output) Min 0.1 Max Units 1 W 1.2 12 20 10.5 15 % 8.3 15 6.8 15 6.3 15 See tolerance envelope graph 0.03 %/C 50 75 75 100 mVp-p 100 150 100 150 100 KHz Typ
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 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 Output
L L
Load regulation
10% to 100% load
Output voltage accuracy Temperature drift 100% full load (AXXXXS-1W) (BXXXXLS-1W) 20MHz Ripple & Noise Bandwidth (AXX24LS-1W) (BXX24LS-1W) Switching frequency Full load, nominal input
Vin
Cin
+Vo
Cout
DC DC
GND Single Output
L
L Cout
0V -Vo
Note: 1. All specifications measured at TA=25C, humidity<75%, nominal input voltage and rated output load unless otherwise specified. 2. Test ripple and noise by "parallel cable" method. See detailed operation instructions at Testing of Power Converter section, application notes. 3. Dual output models unbalanced load: 5%.
L
Vin
Cin
+Vo
Cout
DC DC (Figure 1)
GND
0V
TYPICAL CHARACTERISTICS
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
Operating Temp.(oC)
sees (Table 1). EXTERNAL CAPACITOR TABLE (TABLE 1) Vin Dual Cout Cin Single Cout Vout (uF) (uF) (VDC) (uF) Vout
5 12 15 4.7 2.2 2.2 (VDC) 5 9 12 (VDC) 10 4.7 2.2
OUTLINE DIMENSIONS & PIN CONNECTIONS
First Angle Projection
(0.035)
(0.236)
RE COMMENDED FOOTPRINT Top view,grid:2.54*2.54mm(0.1 *0 .1inch), diameter:1.00mm(0 .039inch) Dua l Output 12 456
2.10 (0.083)
2.54 (0.100)
24 1 15 1 0.47 It's not recommended to connect any external capacitor in the application field with less than 0.5 watt output.
5 9 12 15
4.7 2.2 1
Sing le Output
(0.374)
12
4.10
4
6
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
FOOTPRINT DETAILS
(0.020)
overheat protection that is connected to the input or output end in series (Figure 2).
Dual O u tput Vn i GND S ingle Output
R EG REG
Note: Unit:mm(inch) P in section:0.50*0.30mm(0.020*0.012inch) P in section tolerances: 0.10mm( 0.004inch) General tolerance s: 0.2 5mm( 0.0 10inch)
P in 1 2 4 5 6
S ing le Vin GND 0V No Pin +Vo
Dua l Vin GND -Vo 0V +Vo
+Vout 0V
DC DC
REG
-Vout
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_S -W2/B_LS-W2 series).
Vn i GND
R EG
REG
+Vout
DC DC
0V
(Figure 2) No parallel connection or plug and play.
MORNSUN reserves the copyright
Specifications subject to change without notice.
A_S-1W & B_LS-1W
A/1-2007
Page 2 of 2

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