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Product Detailed Parameters
- Description：LOW POWER ISOLATED FLYBACK CONVE
- Series：-
- Mfr：Rohm Semiconductor
- Package：Tape & Reel (TR),Cut Tape (CT)
- Output Isolation：Isolated
- Internal Switch(s)：Yes
- Voltage - Breakdown：-
- Topology：Flyback
- Voltage - Start Up：5.2 V
- Voltage - Supply (Vcc/Vdd)：8V ~ 80V
- Duty Cycle：50%
- Frequency - Switching：400kHz
- Fault Protection：Current Limiting, Over Load, Over Temperature, Over Voltage, UVLO
- Control Features：EN, Soft Start
- Operating Temperature：-40°C ~ 125°C
- Package / Case：8-PowerUDFN
- Supplier Device Package：8-HSON
- Mounting Type：Surface Mount
- Grade：-
- Qualification：-
- Power (Watts)：-
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Overview
The BD7J101HFN-LBTR is a low-power isolated flyback converter IC manufactured by ROHM Semiconductor. It features an integrated switching MOSFET rated for 80V and supports an input voltage range of 8V to 80V. The device operates at a fixed switching frequency of 400kHz and delivers up to 120V output on a single channel. Designed for surface-mount installation in an HSON-8 package, it functions within a temperature range of -40°C to +125°C with an operating supply current of 450µA.
Feature Summary
- Integrated optocoupler-less isolation architecture eliminating external feedback components
- Built-in high-voltage power MOSFET simplifies circuit design and reduces component count
- Optimized for low standby power consumption suitable for energy-efficient applications
Applications
- Portable consumer devices such as smartphones
- Automotive electronic systems
- Industrial control equipment
Procurement Notes
Verify the specific suffix LBTR confirms the reel or cut-tape packaging format required for your assembly line. Ensure the HSON-8 footprint matches your PCB layout constraints. Confirm that the 80V rating aligns with your maximum input voltage headroom requirements before finalizing procurement orders.
Selection Notes
Select this component when designing isolated flyback converters requiring minimal external parts. The integrated MOSFET reduces board space compared to discrete solutions. Consider the 400kHz frequency for balancing efficiency and EMI performance. Verify compatibility with your target output voltage specifications against the device's operational limits.
Part Context
This part belongs to ROHM's low-power isolated flyback converter series designed for industrial longevity. It replaces traditional designs requiring separate controllers and discrete switches. The family focuses on reducing bill-of-materials costs through integration while maintaining reliability standards for automotive and industrial environments.
Replacement Considerations
Publicly confirmed substitute part numbers are not available in the provided documentation. Engineers should consult official ROHM resources for direct pin-compatible alternatives or functional equivalents within the same product family.
