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Product Detailed Parameters
- Description：IC REG FLYBACK 1MA 8SOP
- Series：-
- Mfr：Rohm Semiconductor
- Package：Tape & Reel (TR),Cut Tape (CT)
- Function：-
- Output Configuration：Positive
- Topology：Flyback
- Output Type：-
- Number of Outputs：1
- Voltage - Input (Min)：8.9V
- Voltage - Input (Max)：26V
- Voltage - Output (Min/Fixed)：-
- Voltage - Output (Max)：-
- Current - Output：1mA
- Frequency - Switching：100kHz
- Synchronous Rectifier：No
- Operating Temperature：-40°C ~ 105°C (TA)
- Mounting Type：Surface Mount
- Package / Case：8-SOIC (0.173", 4.40mm Width)
- Supplier Device Package：8-SOP
- Grade：-
- Qualification：-
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Overview
The BM2P104EF-E2 is a PWM type DC-DC converter IC designed for AC-DC conversion applications. It integrates a 730V耐压 super junction MOSFET and a high-voltage start circuit, enabling direct connection to high-voltage AC power supplies. The device operates with a fixed switching frequency of 100kHz and supports both isolated and non-isolated topologies. Key electrical parameters include a drain maximum voltage of 730V, an operating temperature range from -40°C to 105°C, and an on-resistor of 3Ω. It features current mode control for excellent bandwidth and transient response.
Feature Summary
- Integrates a 730V耐压 super junction MOSFET and start circuit for direct high-voltage AC input.
- Employs PWM current mode control with fixed 100kHz switching frequency for superior transient response.
- Includes frequency hopping functionality to reduce electromagnetic interference (EMI).
- Supports light load frequency reduction to maintain high efficiency under low power conditions.
Applications
- Low-power isolated AC-DC power supply designs
- Non-isolated AC-DC converter systems
- Consumer electronics requiring compact power solutions
Procurement Notes
Verify the specific suffix E2 indicates the tape and reel packaging format with a standard quantity of 2500 units per reel. Confirm RoHS compliance status as listed in the official datasheet. Ensure the SOP8 package dimensions match your PCB footprint requirements. Check for any automotive qualification restrictions if applicable to your final product environment.
Selection Notes
Select this component for applications requiring integrated high-voltage MOSFETs to simplify design. The fixed 100kHz frequency aids in filtering component selection compared to variable frequency controllers. Consider the thermal performance within the -40°C to 105°C range for your enclosure design. Evaluate the need for frequency hopping if strict EMI regulations apply to your target market.
Part Context
This part belongs to ROHM's BM2P series of PWM DC-DC converters, which are engineered for efficient AC-DC conversion. The series supports various power levels and topologies, offering a balance between performance and cost. The BM2P104 variant specifically targets the 100kHz switching frequency segment, distinguishing it from lower frequency counterparts like the BM2P064 series.
Replacement Considerations
The BM2P064EF-E2 is a similar device within the same family but operates at a fixed 65kHz switching frequency instead of 100kHz. Designers must account for differences in transformer sizing and filter component values when substituting between these two models due to the frequency variance.
