DC/DC Converter B_XT-1WR2 Series FEATURES 1W, Fixed input voltage, isolated & unregulated single output z Continuous short-circuit protection z Operating temperature range: -40℃ to +105℃ z Miniature SMD package z Isolation voltage: 1.5K VDC z Internal surface mounted design z No external component required z International standard pin-out Patent Protection RoHS B_XT-1WR2 series are specially designed for applications where an isolated voltage is required in a distributed power supply system. They are suitable for 1. Where the voltage of the input power supply is stable (voltage variation: ±10%Vin); 2. Where isolation between input and output is necessary (isolation voltage ≤1500VDC); 3. Where the output voltage regulation and the ripple & noise of the output voltage is not strictly required; 4. Typical application: digit circuit condition; normal low-frequency artificial circuit condition; relay drive circuit condition, etc. Selection Guide Input Voltage (VDC) Certification Part No. -- B0303XT-1WR2 UL B0305XT-1WR2 B0312XT-1WR2 -- B0315XT-1WR2 Nominal Output Voltage (Range) (VDC) Output Current (mA)(Max./Min.) 3.3 303/30 3.3 (2.97-3.63) UL 65/69 5 200/20 70/74 12 84/9 76/80 15 67/7 76/80 42/4 76/80 303/30 68/72 B0505XT-1WR2 5 200/20 76/80 6 167/17 76/80 B0509XT-1WR2 5 (4.5-5.5) 9 111/12 76/80 12 84/9 76/80 15 67/7 76/80 B0524XT-1WR2 24 42/4 76/80 B1203XT-1WR2 3.3 303/30 68/72 B1205XT-1WR2 5 200/20 76/80 B1209XT-1WR2 9 111/12 76/80 12 84/9 76/80 B1215XT-1WR2 15 67/7 76/80 B1224XT-1WR2 24 42/4 76/80 B1505XT-1WR2 5 200/20 76/80 15 67/7 76/80 B2405XT-1WR2 5 200/20 76/80 B2409XT-1WR2 9 111/12 76/80 12 84/9 76/80 15 67/7 76/80 24 42/4 76/80 B1515XT-1WR2 -- (μF) 3.3 B1212XT-1WR2 UL @ Full Load 24 B0515XT-1WR2 -- Max. Capacitive Load B0503XT-1WR2 B0512XT-1WR2 UL Efficiency (%,Min./Typ.) B0324XT-1WR2 B0506XT-1WR2 UL Output B2412XT-1WR2 B2415XT-1WR2 B2424XT-1WR2 12 (10.8-13.2) 15 (13.5-16.5) 24 (21.6-26.4) 2015.04.03-A/3 220 Page 1 of 5 MORNSUN Guangzhou Science & Technology Co., Ltd. reserves the copyright and right of final interpretation DC/DC Converter B_XT-1WR2 Series Input Specifications Item Input Current (full load / no-load) Operating Conditions Min. Typ. Max. 3.3V input -- 404/25 --/70 5V input -- 250/20 --/60 12V input -- 104/15 --/50 15V input -- 82/10 --/35 24V input -- 52/7 --/30 -- 15 -- 3.3V input -0.7 -- 5 5V input -0.7 -- 9 12V input -0.7 -- 18 15V input -0.7 -- 21 24V input -0.7 -- 30 Reflected Ripple Current Surge Voltage (1sec. max.) Input Filter Unit mA mA VDC Filter capacitor Hot Plug Unavailable Output Specifications Item Operating Conditions Min. Output Voltage Accuracy Line Regulation Load Regulation Typ. Max. Unit See tolerance envelope graph (Fig. 1) Input voltage change: ±1% 10%-100% load 3.3VDC output -- -- ±1.5 Other outputs -- -- ±1.2 3.3VDC output -- 18 -- 5VDC output -- 12 -- 6VDC output -- 10 -- 9VDC output -- 8 -- 12VDC output -- 7 -- 15VDC output -- 6 -- 24VDC output -- % -- 5 -- Ripple & Noise* 20MHz bandwidth -- 60 150 mVp-p Temperature Coefficient Full load -- -- ±0.03 %/℃ B24xxXT-1WR2/ B0524XT-1WR2 -- -- 1 s Short Circuit Protection** Others Continuous, self-recovery Note: * Ripple and noise are measured by “parallel cable” method, please see DC-DC Converter Application Notes for specific operation; ** Supply voltage must be discontinued at the end of short circuit duration for B24xxXT-1WR2 series, and B0524XT-1WR2 model. General Specifications Item Operating Conditions Min. Typ. Max. Unit Isolation Voltage Input-output, with the test time of 1 minute and the leak current lower than 1mA 1500 -- -- VDC 1000 -- -- MΩ -- 20 -- pF Isolation Resistance Input-output, isolation voltage 500VDC Isolation Capacitance Input-output, 100KHz/0.1V Operating Temperature Derating if the temperature ≥100℃ (see Fig. 2) Storage Temperature -40 -- 105 -55 -- 125 Casing Temperature Rise Ta=25℃, nominal input, full load output -- 25 -- Pin Welding Resistance Temperature Welding spot is 1.5mm away from the casing, 10 seconds -- -- 300 Storage Humidity Non-condensing -- -- 95 ℃ %RH Peak temp.≤245℃, maximum duration time≤60s at 217℃. For actual application, please refer to IPC/JEDEC J-STD-020D.1. Reflow Soldering Temperature Switching Frequency Full load, nominal input voltage MTBF MIL-HDFK-217F@25℃ -- 100 -- KHz 3500 -- -- K hours 2015.04.03-A/3 Page 2 of 5 MORNSUN Guangzhou Science & Technology Co., Ltd. reserves the copyright and right of final interpretation DC/DC Converter B_XT-1WR2 Series Physical Specifications Casing Material Epoxy resin (UL94-V0) Dimensions 12.70*11.20*7.25 mm Weight 1.6g(Typ.) Cooling Method Free convection EMC Specifications CISPR22/EN55022 CLASS B (see Fig. 4 for recommended circuit) RE CISPR22/EN55022 CLASS B (see Fig. 4 for recommended circuit) ESD IEC/EN61000-4-2 Contact CE EMI EMS ±8KV perf. Criteria B +10% 3.3VDC output Tolerance Envelope Cur ve Other output Output Voltage Accuracy (%) Output Voltage Accuracy (%) Product Characteristic Curve Max . +5% +1.0% 0 Ty p . -5% -7.5% M in. -10% -15% -15% 10% 20% 40% 60% +10% Ma x . +5% Typ . 0 +2.5% M in. -5% -2.5% -7.5% -10% 10% 20% 100% 80% Tolerance Envelope Curve +15% 40% 60% 80% 100% Output Current Percent(%) (Nominal Input Voltage) Output Cur rent Percentage(%) (Nominal Input Voltage) Fig. 1 Output P ower Percent(%) Temperature Derating Cur ve 120 100 80 60 40 Safe Ope rating Area 20 0 -40 40 71 100 105 0 Ambient Temp.(℃ ) Fig. 2 Efficiency Vs Input Voltage (Full Load) 95 90 90 80 85 70 B0505XT-1WR2 80 75 70 65 Efficiency(%) 100 Efficiency(%) 100 50 40 30 20 55 10 4.5 4.6 4.7 4.8 4.9 5.0 5.1 5.2 5.3 5.4 5.5 Input Voltage(V) B0505XT-1WR2 60 60 50 Efficiency Vs Output Load(Vin=5V) 0 10 20 30 40 50 60 70 80 90 Output Current Percentage(%) 2015.04.03-A/3 100 Page 3 of 5 MORNSUN Guangzhou Science & Technology Co., Ltd. reserves the copyright and right of final interpretation DC/DC Converter B_XT-1WR2 Series Efficiency Vs Input Voltage (Full Load) Efficiency Vs Output Load(Vin=24V) 95 Efficiency(%) 90 85 B2415XT-1WR2 80 75 70 65 60 55 50 21.6 22.1 22.6 23.1 23.5 24.0 24.5 25.0 25.4 25.9 26.4 100 90 80 70 60 50 40 30 20 10 0 B2415XT-1WR2 Efficiency(%) 100 10 Input Voltage(V) 20 30 40 50 60 70 80 90 100 Output Current Percentage(%) Design Reference 1. Typical application circuit If it is required to further reduce input and output ripple, a filter capacitor may be connected to the input and output terminals, see Fig.3. Moreover, choosing a suitable filter capacitor is very important, start-up problems may be caused if the capacitance is too large. Under the condition of safe and reliable operation, the recommended capacitive load values are shown in Table 1. Recommended capacitive load value table (Table 1) Vin(VDC) Cin(μF) Vo (VDC) Cout(μF) +Vo Vin DC C in DC Cout GND 0V Fig.3 3.3 5 12 15 24 -- 4.7 4.7 2.2 2.2 1 -- 3.3 5/6 9 12 15 24 10 10 4.7 2.2 1 0.47 2. EMC solution-recommended circuit LDM Vin Vin C1 GND +Vo DC/DC GND 0V C2 LOAD Input voltage (VDC) C1 EMI C2 LDM 3.3/5/12/15/24 4.7μF /50V Refer to the Cout in Fig.3 6.8μH Fig. 4 3. Output load requirements When using, the minimum load of the module output should not be less than 10% of the nominal load. In order to meet the performance parameters of this datasheet, please connect a 10% dummy load in parallel at the output end, the dummy load is generally a resistor, Please note that the resistor needs to be used in derating. 4. For more information please find DC-DC converter application notes on www.mornsun-power.com 2015.04.03-A/3 Page 4 of 5 MORNSUN Guangzhou Science & Technology Co., Ltd. reserves the copyright and right of final interpretation DC/DC Converter B_XT-1WR2 Series Dimensions and Recommended Layout THIRDANGLEPROJECTION 7.62[0.300] 12.70±0.50[0.500±0.020] TopView 1 4 2 12.20[0.480] 2.10[0.083] 4 A 0.25[0.010] 2 1 5 8 0~ 5 ° TopView 11.20[0.441] 5 8 8.30[0.327] 7.62[0.300] 0.60[0.024] 2.54[0.100] 1.00[0.039] 7.00[0.276] 7.25[0.285] 2.54[0.100] Note:Grid2.54*2.54mm FrontView RightView A 0.88[0.035] 0.10 Note: Unit:mm[inch] Pinsectiontolerances:±0.10[±0.004] Generaltolerances:±0.25[±0.010] Pin 1 2 4 5 8 Pin-Out Function GND Vin 0V +Vo NC NC:NoConnection 2BXT1WR201-A0 Notes: 1. 2. 3. 4. 5. 6. 7. 8. Packing information please refer to Product Packing Information which can be downloaded from www.mornsun-power.com. Packing bag number: 58210024; If the product is not operated within the required load range, the product performance cannot be guaranteed to comply with all parameters in the datasheet; The maximum capacitive load offered were tested at nominal input voltage and full load; Unless otherwise specified, parameters in this datasheet were measured under the conditions of Ta=25℃, humidity<75% with nominal input voltage and rated output load; All index testing methods in this datasheet are based on our Company’s corporate standards; The performance parameters of the product models listed in this manual are as above, but some parameters of non-standard model products may exceed the requirements mentioned above. Please contact our technicians directly for specific information; We can provide product customization service; Specifications are subject to change without prior notice. MORNSUN Guangzhou 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: 86-20-38601850-8801 Fax: 86-20-38601272 E-mail: [email protected] 2015.04.03-A/3 Page 5 of 5 MORNSUN Guangzhou Science & Technology Co., Ltd. reserves the copyright and right of final interpretation