BM61S40RFV-CE2

Isolators - Gate Drivers Overview

The BM61S40RFV-CE2 is an isolated gate driver manufactured by ROHM Semiconductor, housed in a 10-pin SSOP-BW package. It provides galvanic isolation with a rating of 3.75 kVrms and supports high-speed switching with propagation delays of 65 ns. The device delivers a peak output current of 4 A and operates within a supply voltage range of 16 V to 20 V for the output side and 4.5 V to 5.5 V for the input side. It features a common mode transient immunity of 100 kV/µs and includes protection functions such as under-voltage lockout and Miller clamp.

Isolators - Gate Drivers Feature Summary

• Provides galvanic isolation between input and output circuits to protect low-voltage control logic from high-voltage power stages.
• Incorporates Miller clamp functionality to prevent false turn-on events caused by rapid voltage transients during switching.
• Includes under-voltage lockout mechanisms to ensure reliable operation and prevent damage during insufficient supply conditions.

Isolators - Gate Drivers Applications

• Driving silicon carbide (SiC) MOSFETs in high-frequency power conversion systems
• Isolating gate signals for gallium nitride (GaN) high-electron-mobility transistors (HEMTs)
• Industrial motor drive inverters requiring high common-mode noise immunity

Isolators - Gate Drivers Procurement Notes

Verify the specific suffix CE2 against the manufacturer's latest datasheet to confirm compliance status and pinout configuration. Ensure the ordering part number matches the required isolation voltage rating and package type. Cross-reference the component marking code with official documentation to distinguish it from similar variants within the BM61x series. Confirm that the supplier provides valid traceability documents for automotive or industrial qualification requirements.

Isolators - Gate Drivers Selection Notes

Select this component when high-speed switching with robust noise immunity is required for wide-bandgap semiconductors. The 4 A output current capability ensures adequate drive strength for typical power devices. The 3.75 kVrms isolation rating suits applications with significant potential differences between control and power grounds. Consider the 10-pin SSOP-BW package constraints for PCB layout and thermal management in dense designs.

Isolators - Gate Drivers Part Context

This device belongs to the BM61x family of isolated gate drivers from ROHM Semiconductor, designed specifically for driving power switches in demanding environments. The series emphasizes high common-mode transient immunity and fast propagation delays to support modern high-efficiency power electronics. These drivers integrate essential protection features to enhance system reliability and simplify design implementation for engineers working with SiC and GaN technologies.

Isolators - Gate Drivers Replacement Considerations

Check for direct substitutes within the BM61x series that share identical pinouts and electrical specifications. Verify that any alternative component maintains the same 3.75 kVrms isolation rating and 4 A output current capability. Ensure compatibility with the target switching frequency and input logic levels before substitution.

Isolators - Gate Drivers FAQ

What is the maximum common mode transient immunity of the BM61S40RFV-CE2?

The device offers a minimum common mode transient immunity of 100 kV/µs, ensuring reliable operation in high-noise environments.

Does the BM61S40RFV-CE2 include protection against Miller effect-induced turn-on?

Yes, the component incorporates a Miller clamp function to suppress false triggering caused by rapid dv/dt transients on the drain-source terminal.