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Product Detailed Parameters
- Description：IC REG FLYBACK ADJ 1A 8HTSOP-J
- Series：-
- Mfr：Rohm Semiconductor
- Package：Tape & Reel (TR),Cut Tape (CT)
- Function：Step-Up/Step-Down
- Output Configuration：Positive, Isolation Capable
- Topology：Flyback
- Output Type：Adjustable
- Number of Outputs：1
- Voltage - Input (Min)：3V
- Voltage - Input (Max)：40V
- Voltage - Output (Min/Fixed)：0.78V
- Voltage - Output (Max)：50V (Switch)
- Current - Output：1A (Switch)
- Frequency - Switching：400kHz
- Synchronous Rectifier：No
- Operating Temperature：-40°C ~ 125°C (TJ)
- Mounting Type：Surface Mount
- Package / Case：8-SOIC (0.154", 3.90mm Width) Exposed Pad
- Supplier Device Package：8-HTSOP-J
- Grade：-
- Qualification：-
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Overview
The BD7F100EFJ-LBE2 is an isolated flyback DC/DC converter IC designed for industrial applications. It features a wide input voltage range of 8V to 40V and supports output currents up to 2A. The device utilizes ROHM’s proprietary adaptive on-time control technology, eliminating the need for optocouplers or tertiary windings for feedback. This architecture simplifies design by removing external phase compensation components. Integrated protection functions include thermal shutdown, under-voltage lockout, and soft start capabilities.
Feature Summary
- Eliminates the need for optocouplers or transformer tertiary windings for stable isolated output voltage regulation
- Utilizes proprietary adaptive on-time control technology to remove requirements for external phase compensation components
- Integrates high-speed load response capabilities with fixed switching frequency and low output ripple characteristics
Applications
- Industrial equipment power supplies requiring long-term supply availability
- Isolated power applications demanding reduced component count and high reliability
- Systems utilizing adaptive on-time control for simplified phase compensation design
Procurement Notes
Verify the specific suffix LBE2 against official ROHM documentation to confirm package type and tape/reel specifications. Ensure compatibility with the intended isolation requirements and thermal management strategy. Cross-reference the latest datasheet for any Product Change Notices (PCN) that may affect mechanical dimensions or material composition prior to final procurement decisions.
Selection Notes
Select this component when designing isolated flyback converters that require simplified feedback loops without optocouplers. It is suitable for applications needing robust transient response and integrated protection features. Consider the 8V to 40V input range and up to 2A output capability against system power demands. Verify that the HTSOP-J8 package fits the PCB layout constraints and thermal dissipation requirements.
Part Context
This part belongs to the BD7F100 series of isolated flyback converters from ROHM Semiconductor. The series is characterized by its ability to provide stable isolated outputs without traditional optocoupler feedback mechanisms. These devices are engineered for industrial markets with guaranteed long-term supply availability, distinguishing them from general-purpose consumer electronics components.
Replacement Considerations
Publicly confirmed substitute part numbers are not available in the provided source data. Consult ROHM technical support or authorized distributors for qualified alternatives if this specific model becomes unavailable.
