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Product Detailed Parameters
- Description：IC OFFLINE SWITCH FLYBACK 18SOP
- Series：-
- Mfr：Rohm Semiconductor
- Package：Tape & Reel (TR)
- Output Isolation：Isolated
- Internal Switch(s)：No
- Voltage - Breakdown：-
- Topology：Flyback
- Voltage - Start Up：13.5 V
- Voltage - Supply (Vcc/Vdd)：8.9V ~ 26V
- Duty Cycle：-
- Frequency - Switching：Up to 400kHz
- Fault Protection：Current Limiting, Over Voltage
- Control Features：-
- Operating Temperature：-40°C ~ 85°C (TA)
- Package / Case：18-SOIC (0.213", 5.40mm Width)
- Supplier Device Package：18-SOP
- Mounting Type：Surface Mount
- Grade：-
- Qualification：-
- Power (Watts)：-
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Overview
The BM1C001F-GE2 is a Power Factor Correction (PFC) and quasi-resonant DC/DC converter IC manufactured by ROHM Semiconductor. It integrates PFC control with QR flyback functionality in a single chip, designed for high-efficiency AC/DC power supplies. The device operates within an input voltage range of 8.9V to 26V and supports a maximum switching frequency of 120kHz. It features integrated soft start, thermal shutdown, under-voltage lockout, and brown-out protection. Packaged in SOP-18, it is suitable for compact power adapter designs requiring combined power factor correction and regulation.
Feature Summary
- Integrates PFC controller and quasi-resonant DC/DC converter functions into a single chip
- Includes built-in 650V tolerance start circuit for simplified design
- Provides comprehensive protection mechanisms including thermal shutdown and UVLO
- Supports light load mode operation to enhance efficiency at low power
Applications
- AC/DC power adapters
- Consumer electronics power supplies
- Compact LED drivers
- General purpose isolated power conversion
Procurement Notes
Verify the current lifecycle status before procurement as this component may be marked as Not Recommended for New Designs (NRND). Confirm package type SOP-18 and RoHS compliance requirements match your manufacturing specifications. Check for valid datasheet revisions to ensure parameter accuracy. Ensure supply chain stability due to potential end-of-life implications.
Selection Notes
Select this IC when space constraints require combining PFC and QR functions in one package. It is appropriate for applications needing 8.9V to 26V input operation with up to 120kHz switching. Consider alternatives if higher input voltage ranges or different packaging options are required. Evaluate thermal performance given the SOP-18 package size for your specific power dissipation needs.
Part Context
This part belongs to ROHM's BM1C series of PMICs focused on power factor correction. It represents a solution for integrating primary-side control functions to reduce component count. The series targets efficient, compact power supply designs for consumer and industrial applications where board space is limited and high power factor is required.
Replacement Considerations
Check for direct pin-to-pin replacements within the BM1C series or other ROHM PFC+QR combo ICs. Verify functional equivalence regarding input voltage range and switching frequency. Consult official substitution lists for any recommended upgrades or legacy replacements.
