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 | VIN | VOut1 (V) | IOut1 (A) | VOut2 (V) | IOut2 (A) | VOut3 (V) | IOut3 (A) | VOut4 (V) | IOut4 (A) | Vaux (V) | fswitch (kHz) | L (mH) | NPRI : NSEC : NAUX | ISAT (A) | VT (V (AC)) | L (mm) | W (mm) | H (mm) | Mount | Size | IR (mA) | fres (MHz) | Version | Z @ 100 MHz (Ω) | Zmax (Ω) | Test Condition Zmax | IR 2 (mA) | RDC max. (Ω) | Type | Samples | |
---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
750342585 | SPEC | 5 files | Active i| Production is active. Expected lifetime: >10 years. | MID-OLTI Offline Flyback Transformers for Texas Instruments | 400 - 690 V (AC) | 24 | 2 | 16 | 0.14 | 16 | 0.14 | 6 | 0.1 | 16 | 68 | 2.5 | 47.3:1:2.67:2.67:1.33:2.67 | – | 4500 | 35.56 | 24.38 | 44.2 | THT | ETD29 | – | – | – | – | – | – | – | – | – | |||
74279244 | SPEC | 9 files | Active i| Production is active. Expected lifetime: >10 years. | WE-CBF SMT EMI Suppression Ferrite Bead | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | 4.5 | 1.6 | 1.6 | SMT | 1806 | 1000 | – | SMT | 850 | 1250 | 50 MHz | 1500 | 0.1 | High Current | |||
7447462022 | SPEC | 7 files | Active i| Production is active. Expected lifetime: >10 years. | WE-TI Radial Leaded Wire Wound Inductor | – | – | – | – | – | – | – | – | – | – | – | 0.0022 | – | 4.3 | – | 6 | 6 | 8.5 | THT | 5075 | 6300 | 65 | Heat Shrinking Tube | – | – | – | – | 0.02 | – | |||
768772102 | SPEC | 8 files | Active i| Production is active. Expected lifetime: >10 years. | WE-TI HV Radial Leaded Wire Wound Inductor (High Voltage) | – | – | – | – | – | – | – | – | – | – | – | 1 | – | 0.55 | – | 7.8 | 7.8 | 9.5 | THT | 8095 | 500 | 1.8 | Standard | – | – | – | – | 2.08 | – |
Samples |
---|
Order Code | Datasheet | Simulation | Downloads | Status | Product series | VIN | VOut1 (V) | IOut1 (A) | VOut2 (V) | IOut2 (A) | VOut3 (V) | IOut3 (A) | VOut4 (V) | IOut4 (A) | Vaux (V) | fswitch (kHz) | L (mH) | NPRI : NSEC : NAUX | ISAT (A) | VT (V (AC)) | L (mm) | W (mm) | H (mm) | Mount | Size | IR (mA) | fres (MHz) | Version | Z @ 100 MHz (Ω) | Zmax (Ω) | Test Condition Zmax | IR 2 (mA) | RDC max. (Ω) | Type | Samples |
---|