LS03-R2(-F) Series 3W, AC-DC(HIGH VOLTAGE DC-DC) CONVERTER

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1 LS03-R2(-F) Series 3W, AC-DC(HIGH VOLTAGE DC-DC) CONVERTER LS03-R2 Series are high efficiency green power modules with miniature packaging provided by Mornsun. The features of this series are: wide input voltage, DC and AC all in one, high efficiency, high reliability, low loss, safety isolation etc, meet UL950/EN950 standards. All models are particularly suitable for the applications demanding on the volume, need to meet UL/CE standard, less demanding on EMC like industrial, electric power, instrumentation, smart home. For harsh EMC environment, this series of products must use the refered application circuit. FEATURES. Wide input voltage:85 ~ 264VAC(00 ~ 0VDC) 2. Over current protection and short circuit protection 3. High efficiency, high density 4. Low loss, green power 5. Industrial design 6. Ultra-Miniature package. 90 degree curved series, minimizing product height 8. Certificate UL950/EN950 standards. SELECTION GUIDE Approval Model Power Output (Vo/Io) Max. Capacitive Load (µf) RoHS PART NUMBER SYSTEM LS03-5B5SR2 Ripple and Noise (Max.) Special Mark Output Voltage Output Style Input Voltage Isolation Voltage Output Power Package Product Series Efficiency (%) (230VAC,Typ.) -- LS03-5B03SR2(-F)*.W 3.3V/500mA mV 66 UL/CE (beside -F ) LS03-5B05SR2(-F) 2.5W 5V/500mA 4 50mV 69 9V/333mA 50 20mV 6 2V/250mA 00 20mV 8 3W 5V/200mA 00 20mV 8 24V/25mA 00 20mV 8 Note: *The model of 90 degrees of corner is with F. For example the LS03-5B2SR2 of 90 degrees of corner product is LS03-5B2SR2-F. INPUT SPECIFICATIONS Standby Power(Max.) Item Test Conditions Min. Typ. Max. Unit Input Voltage Range AC Input DC Input Input Frequency Hz Input Current Inrush Current OUTPUT SPECIFICATIONS 5VAC VAC VAC VAC Item Test Conditions Min. Typ. Max. Unit Output Voltage Accuracy Line Regulation LS03-5B03SR2(-F) ±3.0 LS03-5B05SR2(-F)* ±5.0 full load Load Regulation 0% to 00% ± ±5.0 LS03-5B03SR2(-F) -- ± Other model -- ±.5 -- LS03-5B03SR2(-F) -- ±.5 -- Other model -- ± W LS03-R2(-F) series A/2 Page of 5 V A %

2 Ripple& Noise(p-p) 20MHz bandwidth (measuring refer to ripple and noise measure figure ) LS03-5B03SR2(-F) LS03-5B05SR2(-F) Min Load % Hold-up Time Short Circuit Protection Over Current Protection 5VAC 230VAC 300 Note:LS03-5B05SR2(-F)* (-20 ~- and ~85 :Figure Output sloid capacitance C2: 2μF/6V). COMMON SPECIFICATIONS Continuous, and auto recovery Auto recovery Item Test Conditions Min. Typ. Max. Unit Operating Temperature mv ms Storage Temperature Case temperature Storage Humidity %RH Temperature coefficient -- ± Power derating - ~ ~ Isolation Resistance MΩ Isolation Voltage input-output Tested for minute VAC Switching Frequency LS03-5B03SR2(-F) Other model Weight g Welding Temperature Safety approvals Safety Class Safety standards Hot swap Wave-soldering Manual-welding 2± 5 ; time:5~0s 3± 0 ; time:3~5s UL950/EN950 CLASS II UL950/EN950 Forbid Case Material Grade UL 94V-0 Install Cooling PCB Free air convection MTBF >300, Note:. External electrolytic capacitors are required to modules, more details refer to typical applications. 2. Ripple and Noise measuring refer to ripple and noise measure figure. 3. All specifications were measured at Ta=25 C, humidity<%, nominal input voltage (5VAC or 230VAC)and rated output load unless otherwise specified. 4. In this datasheet, all the test methods of indications are based on corporate standards. %/ khz EMC SPECIFICATIONS EMI EMS CE RE CISPR22/EN022, CLASS A (Typical Application Circuit Refer to Figure ) CISPR22/EN022, CLASS B (Recommended Circuit Refer to Figure 3) CISPR22/EN022, CLASS A (Typical Application Circuit Refer to Figure ) CISPR22/EN022, CLASS B (Recommended Circuit Refer to Figure 3) ESD IEC/EN Contact ±4KV perf. Criteria B RS IEC/EN V/m (Recommended Circuit Refer to Figure 3) perf. Criteria A EFT IEC/EN ±2KV (Typical Application Circuit Refer to Figure ) perf. Criteria B IEC/EN ±4KV (Recommended Circuit Refer to Figure 3) perf. Criteria B Surge IEC/EN ±KV/±2KV (Recommended Circuit Refer to Figure 3) perf. Criteria B CS IEC/EN Vr.m.s (Recommended Circuit Refer to Figure 3) perf. Criteria A PFM IEC/EN A/m perf. Criteria A Voltage dips, short and interruptions immunity IEC/EN %-% perf. Criteria B LS03-R2(-F) series A/2 Page 2 of 5

3 RIPPLE AND NOISE MEASURE FIGURE ripple AC-DC 0 C2 Copper sheet Connect Oscillograph Probe L C3 C4 Load PRODUCT TYPICAL CURVE Note: is nf/0vac Y capacitor,,c2,l,c3,c4 refer to EXTERNAL CIRCUIT PARAMETERS Output Power Percent(%) 00 - Temperature Derating Graph Input voltage: 0~2VAC Ambient Tem.( ) Note: When input 85~0VAC /2~264VAC/~00VDC/3~0VDC, it need to be voltage derated on basis of temperature derating. Efficency (%) AC input efficiency cure Load (%) 85VAC 0VAC 230VAC 264VAC Efficiency(%) Output Power Percent(%) 00 Input Voltage Derating Graph Ambient temperature: VDC VAC Input Voltage( V) DC input efficiency cure Load(%) 00VDC 200VDC 300VDC 0VDC 85 LS03 AC input rated load efficiency cure LS03 DC input rated load efficiency cure 85 Efficiency(%) LS03-5B05SR2(-F) Efficiency(%) LS03-5B05SR2(-F) Input Voltage(VAC) Input Voltage(VDC) STRUCTURE FIGURE Vin(L) -Vin(N) -V(cap) External Capacitor V(cap) 3 5 Rectificate DC/DC Convertor Rectifier filter circuit 2 0 LS03-R2(-F) series A/2 Page 3 of 5

4 TYPICAL APPLICATIONS NTC L2 3 2 L C2 C3 TVS C4 RL MOV 5 AC-DC 0 AC-DC Figure : LS03-5BXXSR2(-F) Typical application circuit Note: is Pi filter circuit. EMC RECOMMENDED CIRCUIT (Figure 2): This application is not available for this series. Note: If you have such application, please consult to our FAE department. can use MORNSUN s FC-L0DV LCM LDM CY 2 L TVS C4 RL MOV2 CX CY2 5 AC-DC C2 C3 0 (Figure 3): series recommended circuit for applications which require higher EMC standard EMC RECOMMENDED CIRCUIT PCB LAYOUT Figure 4: EMC application circuit PCB layout Safety and recommend wiring: line width 3mm, line-line distance 6mm, line- ground distance 6mm,A 6.4mm EXTERNAL CIRCUIT PARAMETERS Model LS03-5B03SR2(-F) LS03-5B05SR2(-F) L2 C2 330µF/25V L C3 20µF/25V C4 TVS SMBJ.0A 22µF/0V 5mH 50µF/35V 00µF/35V 2.2µH 68µF/35V 0.µF/50V nf/0 VAC A/250V SMBJ2A SMBJ20A SMBJ30A Note:. and C3 are electrolytic capacitors. They are required both AC input and DC input. When AC input, is used as filter capacitor, the value of is recommended to be 22µF /0V.When DC input, is used as EMC filter capacitor, the value of is recommended to be 0µF/0V(when the input voltage is above 3VDC, the recommended value of is 0µF/450V).C2 and C3 are output filer capacitors, they are recommended to be high frequency and low impedance electrolytic capacitors. Capacitance and rated ripple current of capacitors refer to the datasheets provided by the manufactures. Voltage derating of capacitors should be % or above. C4 is a ceramic capacitor, which is used to filter high frequency noise. C2,C3 and L form a pi-type filter circuit. Current of L and L2 refer to the datasheets provided by the manufactures, current derating should be % or above. TVS is a recommended component to protect post-circuits (if converter fails). External input NTC is recommended to use 5D-9.External input MOV is recommended to use S4K For standard EMC requirement, please refer to figure.if higher EMC requirement,please refer to figure 3, recommended parameters are shown in the table below. LS03-R2(-F) series A/2 Page 4 of 5

5 Recommend Parameter For Higher EMC Standard Circuit Components MOV2 CY, CY2 CX LCM LDM FC-L0DV Recommend Parameter S0K300 nf/0vac 0.µF/2VAC 3.5mH 5mH MORNSUN s KV/2KV Surge protector A/250V, slow blow, it must be connected to LS03-R2 DIMENSIONS, RECOMMENDED FOOTPRINT&PACKAGING LS03-R2-F DIMENSIONS, RECOMMENDED FOOTPRINT&PACKAGING MORNSUN Science & Technology Co.,Ltd. Address: No. 5, Kehui St., Kehui development center, Science Ave., Guangzhou Science City, Luogang district, Guangzhou,P.R.China. Tel: Fax: info@mornsun.cn LS03-R2(-F) series A/2 Page 5 of 5

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