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ROHM BD7F100HFN | Demoboard BD7F100HFN_EVK_202
Optocoupler-less Isolated Flyback Converter - BD7F100HFN-LB
Overview
| Topology | Flyback Converter |
| Input voltage | 24 V |
| Output 1 | 5 V / 1 A |
| Output 2 | 15 V / 0.17 A |
| Output 3 | -15 V / -0.17 A |
| Output 4 | 5 V / 0.2 A |
| IC revision | 001 |
Description
BD7F100HFN-LB is an optocoupler-lessIsolated Flyback Converter. An optocoupler or a3rd winding from a transformer needed in theconventional application of feedback circuitsbecomes unnecessary to obtain a stable outputvoltage isolated by the transformer. The numberof parts is reduced drastically producing a smallsizedand high-reliability application isolatedtype power supply.- No need for an optocoupler or a transformer 3rd winding.- Adapted Type ON-Time Control Technology.- High-speed load response- Efficient light load mode- Enables Shutdown Control- Built-in N-Channel MOSFET- Soft start function- Output load compensation function- Complete protection functions UVLO, OCP, TSD
Features
Guaranteed long time supply availability forIndustrial Applications. No need for an optocoupler or a transformer tertiarywinding.The output voltage can be set by two externalresistors and the transformer turns ratio. Uses Original Adapted Type ON-Time ControlTechnology.High-speed load response is realized and externalphase compensation parts are unnecessary. Fixed switching frequency and low output ripple Highly efficient light load mode available (PFMoperation) Shutdown / Enable Control Built-in N-Channel MOSFET Soft start function Output load compensation function Protection functions:VIN Under Voltage Lock-Out (VIN UVLO)Over Current Protection (OCP)Thermal Shutdown Protection (TSD)
Typical applications
- Industrial equipment Isolated Power Supply
More information
Products
| Order Code | Datasheet | Simulation | Downloads | Status | Product series | Pins (Value) (pcs) | Application | PCB/Cable/Panel | Modularity | Type | Wire Section | C | Tol. C | VR (V (DC)) | Size | Operating Temperature | DF (%) | RISO | Ceramic Type | L (mm) | W (mm) | H (mm) | Fl (mm) | Packaging | Samples | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
 | 691102710002 | SPEC | – | 6 files | Active i| Production is active. Expected lifetime: >10 years. | WR-TBL Series 102 - 5.00 mm Horizontal Entry Modular | 2 | Wire Protector | PCB | Yes | Horizontal | 22 to 14 (AWG) 0.75 to 1.5 (mm²) | – | – | – | – | -40 °C up to +105 °C | – | – | – | 10 | – | 10 | – | Box | |
| 691102710003 | SPEC | – | 6 files | Active i| Production is active. Expected lifetime: >10 years. | WR-TBL Series 102 - 5.00 mm Horizontal Entry Modular | 3 | Wire Protector | PCB | Yes | Horizontal | 22 to 14 (AWG) 0.75 to 1.5 (mm²) | – | – | – | – | -40 °C up to +105 °C | – | – | – | 15 | – | 10 | – | Box | |
 | 885012207098 | SPEC | 8 files | Active i| Production is active. Expected lifetime: >10 years. | WCAP-CSGP MLCCs 50 V(DC) | – | – | – | – | – | – | 100 nF | ±10% | 50 | 0805 | -55 °C up to +125 °C | 2.5 | 5 GΩ | X7R Class II | 2 | 1.25 | 0.8 | 0.5 | 7" Tape & Reel | ||
| 885012207100 | SPEC | 8 files | Active i| Production is active. Expected lifetime: >10 years. | WCAP-CSGP MLCCs 50 V(DC) | – | – | – | – | – | – | 220 nF | ±10% | 50 | 0805 | -55 °C up to +125 °C | 3 | 2.3 GΩ | X7R Class II | 2 | 1.25 | 1.25 | 0.5 | 7" Tape & Reel | ||
| 885012208094 | SPEC | 8 files | Active i| Production is active. Expected lifetime: >10 years. | WCAP-CSGP MLCCs 50 V(DC) | – | – | – | – | – | – | 4.7 µF | ±10% | 50 | 1206 | -55 °C up to +125 °C | 10 | 0.02 GΩ | X7R Class II | 3.2 | 1.6 | 1.6 | 0.5 | 7" Tape & Reel | ||
| 885012209006 | SPEC | 8 files | Active i| Production is active. Expected lifetime: >10 years. | WCAP-CSGP MLCCs 10 V(DC) | – | – | – | – | – | – | 22 µF | ±10% | 10 | 1210 | -55 °C up to +125 °C | 5 | 0.02 GΩ | X7R Class II | 3.2 | 2.5 | 2.5 | 0.6 | 7" Tape & Reel | ||
| 750315491 | SPEC | – | – | Active i| Production is active. Expected lifetime: >10 years. | Transformer | – | – | – | – | – | – | – | – | – | EE13/7/4 | – | – | – | – | 13.8 | 23.9 | 11 | – | Tape and Reel |
| Order Code | Datasheet | Simulation | |
|---|---|---|---|
| 691102710002 | SPEC | – |
| 691102710003 | SPEC | – |
| 885012207098 | SPEC | |
| 885012207100 | SPEC | |
| 885012208094 | SPEC | |
| 885012209006 | SPEC | |
| 750315491 | SPEC | – |
| Samples |
|---|
| Order Code | Datasheet | Simulation | Downloads | Status | Product series | Pins (Value) (pcs) | Application | PCB/Cable/Panel | Modularity | Type | Wire Section | C | Tol. C | VR (V (DC)) | Size | Operating Temperature | DF (%) | RISO | Ceramic Type | L (mm) | W (mm) | H (mm) | Fl (mm) | Packaging | Samples |
|---|