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B_S(D)-W2 Series
0.25W, FIXED INPUT, ISOLATED & UNREGULATED SINGLE OUTPUT DC-DC CONVERTER
multi-country patent protection RoHS
FEATURES SIP/DIP Package 1KVDC Isolation Temperature Range: -40C ~ +85C No Heat sink Required Internal SMD construction No External Component Required Industry Standard Pinout RoHS Compliance
PRODUCT PROGRAM
Input Part Number B0303S/D-W2* B0305S/D-W2 B0503S/D-W2 B0505S/D-W2 B0509S/D-W2 B0512S/D-W2 B0515S/D-W2 5 4.5-5.5 Voltage (VDC) Nominal 3.3 Range 2.97-3.63 Voltage (VDC) 3.3 5 3.3 5 9 12 15 3.3 5 12 10.8-13.2 9 12 15 5 24 21.6-26.4 9 12 15 Output Current (mA) Max. 76 50 76 50 28 21 17 76 50 28 21 17 50 28 21 17 Min. 8 5 8 5 3 2 2 8 5 3 2 2 5 3 2 2 62 64 64 64 65 65 65 62 63 63 65 66 63 63 65 66 Efficiency (%, Typ)
APPLICATIONS
The B_S-W2/B_D-W2 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.
B1203S/D-W2 B1205S/D-W2 B1209S/D-W2 B1212S/D-W2 B1215S/D-W2 B2405S/D-W2 B2409S/D-W2 B2412S/D-W2 B2415S/D-W2
*Designing.
COMMON SPECIFICATIONS
Item Storage humidity Operating temperature Storage temperature Temp. rise at full load Lead temperature 1.5mm from case for 10 seconds -40 -55 15 Test conditions Min. Typ. Max. 95 85 125 25 300 Free air convection Plastic(UL94-V0) 1 3500 1.6 S K hours g C Units %
MODEL SELECTION
Cooling Case material Short circuit protection* MTBF Weight
B0505S-W2
Rated Power Packa ge Style Out put Voltage Inp ut V oltage Produc t Series
*Supply voltage must be discontinued at the end of short circuit duration.
ISOLATION SPECIFICATIONS
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
Item Isolation voltage Isolation resistance Isolation capacitance
Test conditions Tested for 1 minute and 1mA max Test at 500VDC
Min. 1000 1000
Typ.
Max.
Units VDC M
85
pF
The copyright and authority for the interpretation of the products are reserved by Mornsun
Specifications subject to change without notice. B_S(D)-W2 A/4-2009 Page 1 of 3
OUTPUT SPECIFICATIONS
Item Output power Line regulation For Vin change of 1%(3.3V output) For Vin change of 1%(others output) 10% to 100% load(3.3 output) 10% to 100% load (5V output) Load regulation 10% to 100% load (9V output) 10% to 100% load (12V output) 10% to 100% load (15V output) Output voltage accuracy Temperature drift Ripple & Noise* 100% full load 20MHz Bandwidth 50 110 15 12.8 8.3 6.8 6.3 Test conditions Min. Typ. Max. 0.25 1.5 1.2 20 15 15 15 15 % Units W
APPLICATION NOTE
See tolerance envelope graph 0.03 75 %/C mVp-p KHz
Switching frequency Full load, nominal input
*Test ripple and noise by "parallel cable" method. See detailed operation instructions at Testing of Power Converter section, application notes. Operating Temp.(oC)
TYPICAL CHARACTERISTICS
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
RECOMMENDED CIRCUIT
L +Vo
L Vin Cin GND
DC DC
Cout 0V
connect a resistor with proper resistance at the output end in parallel to increase the load. (Figure 1) 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). 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. It's not recommended to connect any external capacitor in the application field.
GND Vin
REG
Vin GND
REG
+Vo
DC DC
0V +Vo
DC DC
0V
(Figure 2) 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).
Overload Protection Under normal operat ing 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.
No parallel connection or plug and play
The copyright and authority for the interpretation of the products are reserved by Mornsun
Specifications subject to change without notice. B_S(D)-W2 A/4-2009 Page 2 of 3
OUTLINE DIMENSIONS & PIN CONNECTIONS
MECHANICAL DIMENSIONS
B _ S - W2 Series
11.60[0.461] 0.50[0.020]
1 2 3 4
RECOMMENDED FOOTPRINT
B _ S - W2 Series
2.54[0.100]
0.30[0.012]
0.90[0.035]
12.70[0.500] 7.62[0.300]
0.90[0.035]
B _ D- W2 Series
7.62[0.300]
1
2
3
4
6.00[0.236]
10.00[0.394]
(B ottom View)
7.62[0.300]
1
4
0.30[0.012]
2.54[0.100]
1.00 [0.039]
B _ D - W2 Series
7
5
1.00 [0.039]
2.54[0.100]
5.08[0.200]
7.62[0.300]
1.00 [0.039] 0.50[0.020] 10.00[0.394]
7
5
7.70[0.303]
(Side View)
8.20[0.323]
4.10[0.161]
1
4
2.54[0.100]
4.10[0.161] 0.50[0.020] 7.62[0.300] 1.90[0.075]
TUBE DUTLINE DIMENSIONS
B _ S - W2 Series
9.40[0.370]
B _ D - W2 Series
11.70[0.461]
Pin 1 2 3 4
GND Vin 0V +Vo
1 4 5 7
GND Vin +Vo 0V
16.70[0.657]
B _ S - W2
Pin
B _ D - W2
0.60[0.024] 0.60[0.024] 4.70[0.185] 5.30[0.209]
Note: Unit: mm[inch] Pin section tolerances: 0.10mm[ 0.004inch] General tolerances:0.25mm[0.010inch]
Note: Unit :mm[inch] General tolerances: 0.50mm[0.020inch] L=530mm[20.866inch] Tube Quantity: 43pcs(B_S-W2) 40pcs(B_D-W2) L=220mm[8.661inch] Tube Quantity: 17pcs(B_S-W2) 16pcs(B_D-W2)
Note: 1. Operation under minimum load will not damage the converter; However, they may not meet all specification listed. 2. All specifications measured at Ta=25C, humidity<75%, nominal input voltage and rated output load unless otherwise specified. 3. In this datasheet, all the test methods of indications are based on corporate standards. 4. Only typical models listed, other models may be different, please contact our technical person for more details.
The copyright and authority for the interpretation of the products are reserved by Mornsun
Specifications subject to change without notice. B_S(D)-W2 A/4-2009 Page 3 of 3
14.70[0.579]
FOOTPRINT DE TAILS
FOOTPRINT DETAILS
12.20[0.480]
9.37[0.369]

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