[原创] Rohm BM6209FS三相无刷马达驱动方案

Rohm公司的BM6209FS是三相无刷马达驱动器,内置600V PrestoMOS,输出电流±2.5A,180度正弦换向逻辑,PWM控制,相位控制从0°到+40°,功耗30W,主要用在空调器,空气净化,水泵,洗碗机和洗衣机等.本文介绍了BM6209FS主要特性和主要指标,框图,多种应用电路及其材料清单,以及评估板BM6204FS-EVK-001几种应用设定图和PCB设计图.

This motor driver IC adopts PrestoMOS™ as the outputtransistor, and put in a small full molding package withthe 180° sinusoidal commutation controller chip and thehigh voltage gate driver chip. The protection circuits forovercurrent, overheating, under voltage lock out and thehigh voltage bootstrap diode with current regulation arebuilt-in. It provides optimum motor drive system anddownsizing the built-in PCB of the motor.

BM6209FS主要特性:

600V PrestoMOS™ built-in

Output current 2.5A

Bootstrap operation by floating high side driver(including diode)

180° sinusoidal commutation logic

PWM control (Upper and lower arm switching)

Phase control supported from 0° to +40° at 1°intervals

Rotational direction switch

FG signal output with pulse number switch (4 or 12)

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