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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 | 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 | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
 | WR-TBL Series 102 - 5.00 mm Horizontal Entry Modular, 2, Wire Protector | Simulation– | Status Activei| Production is active. Expected lifetime: >10 years. | Product seriesWR-TBL Series 102 - 5.00 mm Horizontal Entry Modular | Pins2 | PCB/Cable/PanelPCB | ModularityYes | TypeHorizontal | Wire Section 22 to 14 (AWG) 0.75 to 1.5 (mm²) | – | – | – | – | Operating Temperature -40 °C up to +105 °C | – | – | – | Length10 mm | – | Height10 mm | – | PackagingBox | |||
| WR-TBL Series 102 - 5.00 mm Horizontal Entry Modular, 3, Wire Protector | Simulation– | Downloads6 files | Status Activei| Production is active. Expected lifetime: >10 years. | Product seriesWR-TBL Series 102 - 5.00 mm Horizontal Entry Modular | Pins3 | PCB/Cable/PanelPCB | ModularityYes | TypeHorizontal | Wire Section 22 to 14 (AWG) 0.75 to 1.5 (mm²) | – | – | – | – | Operating Temperature -40 °C up to +105 °C | – | – | – | Length15 mm | – | Height10 mm | – | PackagingBox | ||
| WCAP-CSGP MLCCs 50 V(DC), –, – | Status Activei| Production is active. Expected lifetime: >10 years. | Product seriesWCAP-CSGP MLCCs 50 V(DC) | – | – | – | – | – | Capacitance100 nF | Capacitance±10% | Rated Voltage50 V (DC) | Size0805 | Operating Temperature -55 °C up to +125 °C | Dissipation Factor2.5 % | Insulation Resistance5 GΩ | Ceramic TypeX7R Class II | Length2 mm | Width1.25 mm | Height0.8 mm | Pad Dimension0.5 mm | Packaging7" Tape & Reel | |||||
| WCAP-CSGP MLCCs 50 V(DC), –, – | Status Activei| Production is active. Expected lifetime: >10 years. | Product seriesWCAP-CSGP MLCCs 50 V(DC) | – | – | – | – | – | Capacitance220 nF | Capacitance±10% | Rated Voltage50 V (DC) | Size0805 | Operating Temperature -55 °C up to +125 °C | Dissipation Factor3 % | Insulation Resistance2.3 GΩ | Ceramic TypeX7R Class II | Length2 mm | Width1.25 mm | Height1.25 mm | Pad Dimension0.5 mm | Packaging7" Tape & Reel | |||||
| WCAP-CSGP MLCCs 50 V(DC), –, – | Status Activei| Production is active. Expected lifetime: >10 years. | Product seriesWCAP-CSGP MLCCs 50 V(DC) | – | – | – | – | – | Capacitance4.7 µF | Capacitance±10% | Rated Voltage50 V (DC) | Size1206 | Operating Temperature -55 °C up to +125 °C | Dissipation Factor10 % | Insulation Resistance0.02 GΩ | Ceramic TypeX7R Class II | Length3.2 mm | Width1.6 mm | Height1.6 mm | Pad Dimension0.5 mm | Packaging7" Tape & Reel | |||||
| WCAP-CSGP MLCCs 10 V(DC), –, – | Status Activei| Production is active. Expected lifetime: >10 years. | Product seriesWCAP-CSGP MLCCs 10 V(DC) | – | – | – | – | – | Capacitance22 µF | Capacitance±10% | Rated Voltage10 V (DC) | Size1210 | Operating Temperature -55 °C up to +125 °C | Dissipation Factor5 % | Insulation Resistance0.02 GΩ | Ceramic TypeX7R Class II | Length3.2 mm | Width2.5 mm | Height2.5 mm | Pad Dimension0.6 mm | Packaging7" Tape & Reel | |||||
750315491 | Transformer, –, – | Simulation– | Downloads– | Status Activei| Production is active. Expected lifetime: >10 years. | Product series Transformer | – | – | – | – | – | – | – | – | SizeEE13/7/4 | – | – | – | – | Length13.8 mm | Width23.9 mm | Height11 mm | – | PackagingTape and Reel |