Isolation Voltage 3750 Vrms 1ch Gate Driver Providing Galvanic Isolation
The BM61S41RFV-C is a gate driver with an isolation voltage of 3750 Vrms, I/O delay time of 65 ns, and minimum input pulse width of 60 ns. It has the Under-Voltage Lockout (UVLO) function and Miller clamp function.
- AEC-Q100 Qualified(Grade1)
- Providing Galvanic Isolation
- Active Miller Clamping
- Under-Voltage Lockout Function
Reference Design / Application Evaluation Kit
- Evaluation Board - BM61S41RFV-EVK001
The BM61S41RFV-EVK001 board can be driving SiC Power Devices. The Input-side power supply voltage is from 4.5 to 5.5 V. The output-side power supply is from 16 to 24 V. The BM61S41RFV-C has Power Supply protections which are the Under-Voltage Lockout (UVLO) function at Input-side and Output-side. The Active Miller Clamping is included for gate control. The BM61S41RFV-EVK001 allows designers to evaluate Rohm’s Gate Driver family for various applications.
- Evaluation Board - BM61S41RFV-EVK002
The BM61S41RFV-EVK002 board can be driving two SiC Power Devices such as for High-side and Low-side on Half-Bridge application. The Input-side power supply voltage is from 4.5 to 5.5 V. The output-side power supply is from 16 to 24 V.
- Application EVK - APEVK66001
- Industrial 3.6kW Totem Pole PFC Application EVK
Various applications are equipped with AC/DC functions, and the Totem Pole PFC topology is the standard circuit.The TPPFCSIC-EVK-301 implements a single-phase AC/DC conversion stage in Totem Pole PFC topology. Key components are ROHM Gen.4 SiC MOSFETs (SCT4045DR) as the main high-frequency switching elements, as well as the BM61S41 single-channel isolated gate driver IC. In addition, SJ MOSFETs and auxiliary power supply, among other components from ROHM, were utilized to create a high-performance AC/DC circuit for single-phase operation.TPPFCSIC-EVK-301 reaches up to 98.5％ efficiency at 230Vac.If this Totem Pole PFC reference design is coupled with a secondary stage of comparable efficiency, it becomes possible to achieve the 80+ Titanium target efficiency of power supply products. Moreover, this contributes to enhancing the Annual Performance Factor (APF) of air conditioners.
This reference design consists of two boards. Each is shown below.
- TPPFCSIC-EVK-201_PCB3051：Totem Pole PFC Board
- TPPFCSIC-EVK-201_PCB3052 : AUX Power Supply Board
The software for this reference design can be downloaded from below.