A_S-2W & B_S-2W Series 2W, FIXED INPUT, ISOLATED & UNREGULATED DUAL/SINGLE OUTPUT DC-DC CONVERTER Patent Protection RoHS FEATURES ● Efficiency up to 86% ● 1KVDC isolation ● SIP package ● High power density ● Low temperature rise ● Operating temperature range: -40°C ~ +85°C ● No external component required ● Industry standard pinout APPLICATIONS PART NUMBER SYSTEM The A_S-2W & B_S-2W Series are designed for application A0505S-2W where isolated output is required from a distributed power R a te d P o we r P a c k a g e S tyle O u tp u t Vo lta g e In p u t Vo lta g e P ro d u c t S e rie s system. These products apply to where: 1) Input voltage variation ≤ ±10%; 2) 1KVDC input and output isolation; 3) Regulated and low ripple noise is not required. Such as: digital circuits, low frequency analog circuits, and IGBT power device driving circuits. SELECTION GUIDE Model Number Input Voltage(VDC) Nominal (Range) B0303S-2W Output Current (mA) Output Voltage (VDC) Max. Min. 3.3 400 40 Input Current (mA)(typ.) @Max. @No Load Load --- Reflected Ripple Current (mA,typ.) -- 3.3(2.97-3.63) 5 400 40 749 A0505S-2W ±5 ±200 ±20 A0509S-2W ±9 ±111 ±12 A0512S-2W ±12 ±83 A0515S-2W ±15 5 (4.5-5.5) Efficiency (%, typ.) @Max. Load Approval 73 220 B0305S-2W A0524S-2W Max. Capacitive # Load (µF) 46 32 78 491 33 30 82 UL 466 36 22 85 UL ±9 464 34 26 86 UL ±67 ±7 459 19 33 82 UL ±24 ±42 ±5 453 25 49 84 100 3.3 400 40 355 35 43 74 B0505S-2W 5 400 40 490 44 44 81 UL CE B0509S-2W 9 222 23 467 33 19 84 UL CE B0503S-2W 220 B0512S-2W 12 167 17 463 33 20 83 UL CE B0515S-2W 15 133 14 466 33 20 84 UL CE 34 B0524S-2W 24 84 10 465 59 82 A1205S-2W ±5 ±200 ±20 198 18 23 81 UL A1209S-2W ±9 ±111 ±12 191 17 30 84 UL A1212S-2W ±12 ±83 ±9 188 16 20 86 UL A1215S-2W ±15 ±67 ±7 197 20 21 82 UL ±24 ±42 ±5 186 12 19 84 16 31 81 UL CE 82 UL CE 85 UL CE UL CE A1224S-2W 12 (10.8-13.2) 100 5 400 40 204 B1209S-2W 9 222 23 202 24 28 B1212S-2W 12 167 17 190 16 22 B1215S-2W 15 133 14 196 19 16 82 B1224S-2W 24 84 10 189 15 13 84 B1205S-2W The copyright and authority for the interpretation of the products are reserved by MORNSUN 220 A_S-2W & B_S-2W B/1-2012 Page 1 of 5 Input Voltage(VDC) Nominal (Range) Output Current (mA) Input Current (mA)(typ.) @Max. @No Load Load Reflected Ripple Current (mA,typ.) Output Voltage (VDC) Max. Min. A1505S-2W ±5 ±200 ±20 160 15 32 A1515S-2W ±15 ±67 ±7 152 14 17 5 400 40 159 14 30 Model Number B1505S-2W 15 （13.5-16.5） Max. Capacitive # Load (µF) Efficiency (%, typ.) @Max. Load Approval 80 100 82 80 220 B1515S-2W 15 133 14 157 15 20 80 A2405S-2W ±5 ±200 ±20 100 9 42 80 UL A2409S-2W ±9 ±111 ±12 98 9 22 84 UL A2412S-2W ±12 ±83 ±9 93 7 17 84 UL A2415S-2W ±15 ±67 ±7 98 9 17 84 UL ±24 ±42 ±5 99 10 41 85 3.3 400 40 55 7 26 76 B2405S-2W 5 400 40 102 8 21 80 UL CE B2409S-2W 9 222 23 98 8 28 83 UL CE A2424S-2W B2403S-2W 24 （21.6-26.4） 100 220 B2412S-2W 12 167 17 95 7 19 84 UL CE B2415S-2W 15 133 14 95 7 27 84 UL CE B2424S-2W 24 84 10 96 9 21 84 Note: 1.Models listed with strike-through text have been officially discontinued. # 2. For each output. 3. The A_S_1W/B_LS_1W series also are available in our company. INPUT SPECIFICATIONS Item Test Conditions Min. Typ. Max. 3.3VDC input -0.7 -- 5 5VDC input -0.7 -- 9 Input Surge Voltage (1sec. max.) 12VDC input -0.7 -- 18 15VDC input -0.7 -- 21 24VDC input -0.7 -- 30 Unit VDC Capacitance Filter Input Filter OUTPUT SPECIFICATIONS Item Test Conditions Output Power Min. Typ. Max. Unit 0.2 -- 2 W Output Voltage Accuracy See tolerance envelope curve Output Voltage Balance Dual Output, Balanced Loads -- ±0.5 ±1.0 Line Regulation For Vin change of ±1% -- -- ±1.2 3.3VDC output -- 15 20 5VDC output -- 12.8 15 9VDC output -- 8.3 15 12VDC output -- 6.8 15 15VDC output -- 6.3 15 24VDC output -- 5 15 Load Regulation 10% to 100% load % Temperature Drift Full load -- -- ±0.03 %/°C Ripple & Noise* 20MHz Bandwidth -- 75 150 mVp-p -- -- 1 s Short Circuit Protection** Note: 1.Dual output models unbalanced load: ±5%. 2.*Test ripple and noise by “parallel cable” method. See detailed operation instructions at Testing of Power Converter section, application notes. 3.**Supply voltage must be discontinued at the end of short circuit duration. The copyright and authority for the interpretation of the products are reserved by MORNSUN A_S-2W & B_S-2W B/1-2012 Page 2 of 5 COMMON SPECIFICATIONS Item Test Conditions Min. Typ. Max. Unit Isolation Voltage Tested for 1 minute and leakage current less than 1 mA 1000 -- -- VDC Isolation Resistance Test at 500VDC MΩ 1000 -- -- A2424S-2W, B2424S-2W -- 100 -- Others -- 30 -- Switching Frequency Full load, nominal input -- 75 -- KHz MTBF MIL-HDBK-217F@25℃ 3500 -- -- K hours Input/Output, 100KHz/0.1V Isolation Capacitance Case Material pF Plastic (UL94-V0) Weight -- 2.8 -- g ENVIRONMENTAL SPECIFICATIONS Item Test Conditions Min. Typ. Max. Unit Storage Humidity Non condensing -- -- 95 % Operating Temperature Power derating (above 85℃) -40 -- 85 Storage Temperature -55 -- 125 Temp. rise at full load -- 25 -- -- -- 300 Lead Temperature 1.5mm from case for 10 seconds Cooling °C Free air convection EMC SPECIFICATIONS EMI CE CISPR22/EN55022 EMS ESD IEC/EN61000-4-2 CLASS A（External Circuit Refer to Figure1、2） ±8KV Contact perf. Criteria B EMC RECOMMENDED CIRCUIT B_S-2W Series EMI Recommended External Circuit: Vin Vin + Vo EUT C1 GND LO AD G ND Recommended external circuit parameters: Vin： 5V/15V C1：2.2µF/50V Note: Product bare input of 12V、24V already meet CLASS A. 0V (Figure 1) A_S-2W Series EMI Recommended External Circuit: L DM Vi n Vi n EUT C1 G ND + Vo GND LOAD -Vo (Figure 2) Recommended external circuit parameters: ①Vin：5V C1：4.7µF/50V LDM：4.7µH ②Vin：12V C1：4.7µF/50V ③Vin：15V C1：2.2µF/50V Note: Product bare input of 3.3V、24V already meet CLASS A. PRODUCT TYPICAL CURVE Tolerance Envel ope Curve Output Voltage Accuracy (%) +5% Rated Output Voltage Typ ic al Load L ine +2.5% -2.5% -7.5% 50 70 100 Output Curr ent Percent(%) Output Power Percent(%) Tempe rature D eratin g Curve +10% 120 100 80 60 Safe Operating Area 40 20 0 -40 0 40 85 105 120 Ambient Temp.(℃ ) (Nom inal Input Voltage ) The copyright and authority for the interpretation of the products are reserved by MORNSUN A_S-2W & B_S-2W B/1-2012 Page 3 of 5 Efficiency VS Output Load curve A0505S-2W (Vin=Vin-nominal) B0505S-2W 100 100 90 80 90 80 70 Efficiency(%) Efficiency(%) Efficiency VS Input Voltage curve A0505S-2W (Full Load) B0505S-2W 60 50 40 30 20 10 70 60 50 40 30 20 10 0 5.5 5.4 5.3 5.2 5.1 5.0 4.9 4.8 4.7 4.6 0 10 20 Efficiency VS Input Voltage curve A2405S-2W (Full Load) B2405S-2W 100 90 80 70 60 50 40 30 20 10 0 40 50 60 70 80 90 100 Efficiency VS Output Load curve A2405S-2W (Vin=Vin-nominal) B2405S-2W 100 90 Efficiency(%) 80 70 60 50 40 30 20 0 26.4 25.9 25.4 25.0 24.5 24.0 23.5 23.0 22.6 10 22.1 Efficiency(%) 30 Total Output Current (% ) Input Voltage(V) 10 20 Input Voltage(V) 30 40 50 60 70 80 90 100 Total Output Current (% ) OUTLINE DIMENSIONS, RECOMMENDED FOOTPRINT & PACKAGING RECOMMENDED FOOTPRINT MECHANICAL DIMENSIONS DUAL (Front View) 10.00 [0.394] ∅1.00 [0.039] 1 2 4 5 6 1 2 4 6 4.10 [0.161] SINGLE 0.50 [0.020] 0.50 [0.020] 19.60 [0.772] (Bottom View) 1 2 4 5 0.30 7.00 [0.276] [0.012] 6 Note: grid 2.54*2.54mm. TUBE OUTLINE DIMENSIONS 2.54 [0.100] 9.60 [0.378] 10.16 [0.400] Single 1 Vin Vin 2 GND GND 4 0V -Vo 5 No Pin 0V 6 +Vo +Vo 16.90 [0.665] FOOTPRINT DETAILS Pin Dual Note: Unit:mm[inch] Pin section tolerances:±0.10mm[±0.004inch] General tolerances:±0.25mm[±0.010inch] 12.40 [0.488] 0.90 [0.035] 4.90 [0.193] Note: Unit :mm[inch] General tolerances: ±0.50mm[±0.020inch] L=530mm[20.866inch] Tube Quantity: 25pcs L=220mm[8.661inch] Tube Quantity: 10pcs Short tube inner packaging dimensions: L*W*H=255*170*80mm; Short tube outer packaging dimensions(with six inner packaging boxes): L*W*H=375*280*270mm; Long tube inner packaging dimensions: L*W*H=580*200*100mm; Long tube outer packaging dimensions(with two inner packaging boxes) ： L*W*H=600*215*220mm; Long tube outer packaging dimensions(with three inner packaging boxes) ： L*W*H=600*215*325mm. The copyright and authority for the interpretation of the products are reserved by MORNSUN A_S-2W & B_S-2W B/1-2012 Page 4 of 5 TEST CONFIGURATIONS Input Reflected-Ripple Current Test Setup Input reflected-ripple current is measured with an inductor Lin and Capacitor Cin to simulate source impedance. Oscilloscope Lin Cin Lin(4.7µH) Current Probe DC DC Load Cin(220µF, ESR < 1.0Ω at 100 KHz) DESIGN CONSIDERATIONS 1) Requirement on output load To ensure this module can operate efficiently and reliably, During operation, the minimum output load could not be less than 10% of the full 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-1W / B_LS-1W Series). 2) Overload Protection Under normal operating conditions, the output circuit of these products has no protection against overload. The simplest method is add a circuit breaker to the circuit. 3) Recommended circuit If you want to further decrease the input/output ripple, an capacitor filtering network may be connected to the input and output ends of the DC/DC converter, see (Figure 3). It should also be noted that the capacitance of 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). Dual O utput EXTERNAL CAPACITOR TABLE (TABLE 1) # Vin Cin Single Vout Cout Dual Cout (VDC) (µF) (VDC) (µF) Vout (µF) (VDC) 3.3/5 4.7 3.3/5 10 ±5 4.7 +Vo Vin C out Cin DC DC GND Cout 0V -Vo Single Output +Vo Vin Cin DC DC C out GND 0V 12 2.2 9 4.7 ±9 15 2.2 12 2.2 ±12 1 24 1 15 1 ±15 0.47 2.2 --24 1 ±24 0.47 # Note: For each output. It’s not recommended to connect any external capacitor in the application field with less than 0.5 watt output. (Figure 3) 4) Output Voltage Regulation and Over-voltage Protection Circuit The simplest device for output voltage regulation, over-voltage and over-current protection is a linear regulator and an capacitor filtering network with overheat protection that is connected to the input or output end in series (Figure 4), the recommended capacitance of its filter capacitor sees (Table 1), linear regulator based on the actual voltage and current to reasonable selection. Dual Output Vin REG REG +Vo REG -Vo REG +Vo 0V DC DC GND Single Output Vin REG DC DC GND 0V (Figure 4) 5) Cannot use in parallel and hot swap Note: 1. Operation under minimum load will not damage the converter; However, they may not meet all specification listed. 2. Max. Capacitive Load tested at input voltage range and full load. 3. All date in the datasheet are measured according to nominal input voltage, rated output load, TA=25℃ , humidity<75%, unless otherwise specified. 4. In this datasheet, all the test methods of indications are based on our corporate standards. 5. The performance in the datasheet is just fit for the part number in the selection guide, and may be different from the customer-designed product, you can get more details from MORNSUN FAE. 6. Contact us for your specific requirement. 7. Specifications subject to change without prior notice. MORNSUN Science & Technology Co.,Ltd. Address: No. 5, Kehui St. 1, Kehui development center, Science Ave., Guangzhou Science City, Luogang district, Guangzhou,P.R.China. Tel: 86-20-38601850 Fax:86-20-38601272 Http://www.mornsun-power.com The copyright and authority for the interpretation of the products are reserved by MORNSUN A_S-2W & B_S-2W B/1-2012 Page 5 of 5