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Overview
| Topology | Flyback Converter |
| Input voltage | 85-265 V |
| Switching frequency | 100 kHz |
| Output 1 | 15 V / 0.05 A |
| Output 2 | 15 V / 1 A |
| Output 3 | 15 V / 0.05 A |
| IC revision | B |
Description
This reference design takes a universal Vac input and creates three isolated 15-Vdc outputs. The main output can be loaded up to 1-A and achieves over 86% efficiency. The other isolated 15-V outputs can be loaded to 50-mA. These outputs have linear regulators to keep the voltages within 1% regardless of cross-loading conditions.
Features
- Primary side regulated flyback to create multiple isolated outputs
- Low profile >20mm design
- 3% accuracy on 1-A output, 1% accuracy on 50-mA outputs
Typical applications
- Standby Supply for TV and Desktop
- USB-Compliant Adapters and Chargers for Consumer Electronics / White Goods
More information
Application Notes
Products
| Order Code | Datasheet | Simulation | Downloads | Status | Product series | Pins (Value) (pcs) | Application | PCB/Cable/Panel | Modularity | Type | Wire Section | VIN | VOut1 (V) | IOut1 (A) | VOut2 (V) | IOut2 (A) | VOut3 (V) | IOut3 (A) | Vaux (V) | fswitch (kHz) | NPRI : NSEC : NAUX | ISAT (A) | Size | C | Endurance (h) | Operating Temperature | IRIPPLE (mA) | ILeak (µA) | DF (%) | Pitch (mm) | Ø D (mm) | Packaging | IR (A) | L (mH) | RDC max. (mΩ) | VR (V (AC)) | VT (V (AC)) | Material | L (mm) | W (mm) | H (mm) | Mount | Samples | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
 | 691214310002 | SPEC | – | 6 files | Active i| Production is active. Expected lifetime: >10 years. | WR-TBL Series 2143 - 3.81 mm Horiz. Entry Modular | 2 | Rising Cage Clamp | PCB | Yes | Horizontal | 24 to 16 (AWG) 0.2 to 1 (mm²) | – | – | – | – | – | – | – | – | – | – | – | – | – | – | -40 °C up to +105 °C | – | – | – | 3.81 | – | Box | 10 | – | – | – | – | – | 7.62 | – | – | THT | |
 | 744821150 | SPEC | 9 files | Active i| Production is active. Expected lifetime: >10 years. | WE-CMB Common Mode Power Line Choke | 4 | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | XS | – | – | -40 °C up to +125 °C | – | – | – | – | – | – | 1 | 5 | 220 | 250 | 1500 | MnZn | 15 | 7.8 | 18 | THT | ||
 | 7447031 | SPEC | – | 6 files | Active i| Production is active. Expected lifetime: >10 years. | WE-FI Leaded Toroidal Line Choke | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | 2 | 0.14 | 110 | – | – | – | 13.5 | 8.6 | – | THT | |
 | 860241380015 | SPEC | 6 files | Active i| Production is active. Expected lifetime: >10 years. | WCAP-AT1H Aluminum Electrolytic Capacitors | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | 16.0 x 25.0 | 47 µF | 10000 | -40 °C up to +105 °C | 1200 | 852 | 20 | 7.5 | 16 | Ammopack | – | – | – | 400 | – | – | 25 | – | – | Radial THT | ||
 | 750318302 | SPEC | 3 files | Active i| Production is active. Expected lifetime: >10 years. | MID-OLTI Offline Flyback Transformers for Texas Instruments | – | – | – | – | – | – | 120 - 375 V (DC) | 16.7 | 0.05 | 16.7 | 0.05 | 15 | 1 | 18 | 70 | 6:1:1.11:1.11:1.22 | 2.5 | EFD25 | – | – | – | – | – | – | – | – | – | – | 0.45 | – | – | 3000 | – | 26.3 | 33 | 14.3 | THT |
| Order Code | Datasheet | Simulation | |
|---|---|---|---|
| 691214310002 | SPEC | – |
| 744821150 | SPEC | |
| 7447031 | SPEC | – |
| 860241380015 | SPEC | |
| 750318302 | SPEC |
| Samples |
|---|
| Order Code | Datasheet | Simulation | Downloads | Status | Product series | Pins (Value) (pcs) | Application | PCB/Cable/Panel | Modularity | Type | Wire Section | VIN | VOut1 (V) | IOut1 (A) | VOut2 (V) | IOut2 (A) | VOut3 (V) | IOut3 (A) | Vaux (V) | fswitch (kHz) | NPRI : NSEC : NAUX | ISAT (A) | Size | C | Endurance (h) | Operating Temperature | IRIPPLE (mA) | ILeak (µA) | DF (%) | Pitch (mm) | Ø D (mm) | Packaging | IR (A) | L (mH) | RDC max. (mΩ) | VR (V (AC)) | VT (V (AC)) | Material | L (mm) | W (mm) | H (mm) | Mount | Samples |
|---|