Topology | Flyback Converter |
Input voltage | 400-690 V |
Output 1 | 24 V |
Output 2 | 16 V |
Output 3 | 6 V |
IC revision | E2 |
This reference design provides isolated +24V (45W), ±16 V (4.5W), and +6V (0.5W) outputs to power the control electronics in variable speed drives. The power supply can be either powered directly from 3-phase AC mains (380Vac to 690Vac) or can be powered from the DC-link voltage (400Vdc to 1200Vdc). This design uses a quasi-resonant flyback topology and is rated for 50-Watt total output power. The line and load regulation of the power supply is designed to be within 5% using primary-side regulation (eliminating costly feedback components). The power supply is designed to meet the clearance, creepage, and isolation test voltages as per IEC61800-5 requirements.
Order Code | Datasheet | Simulation | Downloads | Status | Product series | L (µH) | IR (A) | ISAT (A) | fres (MHz) | Version | Mount | VIN | VOut1 (V) | IOut1 (A) | VOut2 (V) | IOut2 (A) | VOut3 (V) | IOut3 (A) | Vaux (V) | fswitch (kHz) | NPRI : NSEC : NAUX | VT (V (AC)) | Size | L (mm) | W (mm) | H (mm) | Z @ 100 MHz (Ω) | Zmax (Ω) | Test Condition Zmax | IR 2 (mA) | RDC max. (Ω) | Type | Samples | |
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![]() | 7447462022 | SPEC | 8 files | Active i| Production is active. Expected lifetime: >10 years. | WE-TI Radial Leaded Wire Wound Inductor | 2.2 | 6.3 | 4.3 | 65 | Heat Shrinking Tube | THT | – | – | – | – | – | – | – | – | – | – | – | 5075 | 6 | 6 | 8.5 | – | – | – | – | 0.02 | – | ||
![]() | 768772102 | SPEC PCN pendingDue to a pending PCN there will be a new datasheet revision issued for this order code soon. Please find the actual as well based on valid PCN date the new revision datasheet below. If you have further questions please get in contact with our sales staff. | 8 files | Active i| Production is active. Expected lifetime: >10 years. | WE-TI HV Radial Leaded Wire Wound Inductor (High Voltage) | 1000 | 0.5 | 0.55 | 1.8 | Standard | THT | – | – | – | – | – | – | – | – | – | – | – | 8095 | 7.8 | 7.8 | 9.5 | – | – | – | – | 2.08 | – | ||
![]() | 750342585 | SPEC | 7 files | Active i| Production is active. Expected lifetime: >10 years. | WE-OLTI Offline Flyback Transformers | 2500 | – | 0.0062 | – | – | THT | 400 - 690 V (AC) | 24 | 2 | 16 | 0.14 | 16 | 0.14 | 16 | 68 | 35.5:1:2:2:0.75:2 | 3800 | ETD29 | 35.56 | 24.38 | 44.2 | – | – | – | – | – | – | ||
![]() | 74279244 | SPEC | 9 files | Active i| Production is active. Expected lifetime: >10 years. | WE-CBF SMT EMI Suppression Ferrite Bead | – | 1 | – | – | SMT | SMT | – | – | – | – | – | – | – | – | – | – | – | 1806 | 4.5 | 1.6 | 1.6 | 850 | 1250 | 50 MHz | 1500 | 0.1 | High Current |
Order Code | Datasheet | Simulation | |
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![]() | 7447462022 | SPEC | |
![]() | 768772102 | SPEC PCN pendingDue to a pending PCN there will be a new datasheet revision issued for this order code soon. Please find the actual as well based on valid PCN date the new revision datasheet below. If you have further questions please get in contact with our sales staff. | |
![]() | 750342585 | SPEC | |
![]() | 74279244 | SPEC |
Samples |
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Order Code | Datasheet | Simulation | Downloads | Status | Product series | L (µH) | IR (A) | ISAT (A) | fres (MHz) | Version | Mount | VIN | VOut1 (V) | IOut1 (A) | VOut2 (V) | IOut2 (A) | VOut3 (V) | IOut3 (A) | Vaux (V) | fswitch (kHz) | NPRI : NSEC : NAUX | VT (V (AC)) | Size | L (mm) | W (mm) | H (mm) | Z @ 100 MHz (Ω) | Zmax (Ω) | Test Condition Zmax | IR 2 (mA) | RDC max. (Ω) | Type | Samples |
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