BM2LC105FJ-CE2

Power Distribution Switches, Load Drivers Overview

The BM2LC105FJ-CE2 is a two-channel automotive low-side switch manufactured by ROHM Semiconductor. It operates within a supply voltage range of 3 V to 5.5 V and supports a maximum drain-source voltage of 42 V. The device delivers a DC output current of 1.3 A per channel at an ambient temperature of 85 °C, with a typical on-resistance of 105 mΩ and a maximum of 250 mΩ. It features an overcurrent limit of 3 A minimum and includes protection circuits for thermal shutdown and active clamping. Qualified under AEC-Q100 Grade 1, it functions reliably between -40 °C and +150 °C junction temperature.

Power Distribution Switches, Load Drivers Feature Summary

• Integrated overcurrent limiting circuit with self-restart capability
• Built-in thermal shutdown circuit for temperature protection
• Active clamp circuit for overvoltage suppression
• Open load detection function available when outputs are off

Power Distribution Switches, Load Drivers Applications

• Automotive lighting systems
• Solenoid driver applications
• Fan and pump motor control
• General automotive load switching

Power Distribution Switches, Load Drivers Procurement Notes

Verify the specific suffix CE2 against the official datasheet to confirm package type and tape-and-reel specifications. Ensure the procurement order matches the required AEC-Q100 Grade 1 qualification status for automotive safety analysis support. Confirm RoHS compliance details directly from the manufacturer's documentation prior to purchase.

Power Distribution Switches, Load Drivers Selection Notes

Select this component for automotive designs requiring dual-channel low-side switching with integrated diagnostic capabilities. Consider the 1.3 A continuous current rating and 105 mΩ typical resistance for efficiency requirements. Verify that the 42 V drain-source voltage and 3 A overcurrent limit align with the specific load characteristics and fault conditions of the target application.

Power Distribution Switches, Load Drivers Part Context

This part belongs to the BM2LC series of automotive low-side switches designed for robust load driving in vehicle environments. It integrates standard error flags and protection mechanisms to simplify system design. The series supports functional safety analysis, making it suitable for critical automotive subsystems where reliability and diagnostic feedback are essential for operational integrity.

Power Distribution Switches, Load Drivers Replacement Considerations

Public confirmed substitute part numbers are not available in the provided documentation.