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Product Detailed Parameters
- Description：IC REG FLYBACK ADJ 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)：3.4V
- Voltage - Input (Max)：42V
- Voltage - Output (Min/Fixed)：-
- Voltage - Output (Max)：60V
- Current - Output：-
- Frequency - Switching：363kHz
- Synchronous Rectifier：No
- Operating Temperature：-40°C ~ 125°C (TA)
- Mounting Type：Surface Mount
- Package / Case：8-SOIC (0.154", 3.90mm Width) Exposed Pad
- Supplier Device Package：8-HTSOP-J
- Grade：Automotive
- Qualification：AEC-Q100
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Overview
The BD7F205EFJ-CE2 is an automotive-grade isolated flyback converter IC with an integrated switching MOSFET. It eliminates the need for optocouplers or transformer auxiliary windings for feedback, reducing component count. Key electrical parameters include a maximum switching frequency of 363 kHz, a typical switch current limit of 3.8 A, and an input voltage range from 3.4 V to 42 V. It delivers 6 W output power at 12 V input. The device operates within a temperature range of -40°C to +125°C and features soft start, under-voltage lockout, and thermal shutdown recovery.
Feature Summary
- Eliminates the requirement for optocouplers or transformer auxiliary windings in the feedback circuit.
- Utilizes adaptive on-time control technology to achieve high-speed load response.
- Integrates multiple protection functions to enhance reliability in isolated power supply designs.
Applications
- Automotive isolated power supply designs
- Applications requiring reduced component count through optocoupler elimination
- Systems needing fast load response capabilities
Procurement Notes
Verify the specific suffix CE2 against the manufacturer's latest documentation to ensure correct packaging and tape specifications. Confirm that the functional safety category remains FS supportive as stated in official datasheets. Check for any pending Product Change Notices (PCN) that may update specifications without altering electrical characteristics. Ensure compatibility with HTSOP-J8 package requirements during integration.
Selection Notes
Select this component when designing isolated flyback converters that require simplified feedback loops by removing optocouplers. It is suitable for applications demanding high-speed load transient response via adaptive on-time control. Consider its 42 V maximum input voltage and 3.8 A current limit for appropriate power stage design. Verify that the HTSOP-J8 package fits the board layout constraints and thermal management strategy.
Part Context
This part belongs to ROHM Semiconductor's line of automotive isolated flyback converter ICs featuring integrated switches. These devices are designed to simplify power supply architectures by removing external feedback components like optocouplers. The series supports functional safety analysis and targets automotive environments with wide operating temperature ranges and robust protection features.
Replacement Considerations
Publicly confirmed substitute part numbers are not available in the provided documentation. Consult official ROHM resources for potential alternatives if this specific model becomes unavailable.
