BD7763EFV数据手册集成电路（IC）的电机驱动器控制器规格书PDF

描述 Description

BD7763EFV是面向Blu-ray驱动器的主轴电机、执行器线圈、步进电机、球面像差调整用（SA）步进电机及负载电机驱动而开发的9ch系统电机驱动器IC。在主轴驱动器中采用无传感器驱动方式，无需用于电机位置检测的霍尔传感器（3个），因此适用于减少柔性电缆的接线及缩减外置零件。在执行器、负载驱动器、主轴、步进、SA输出段中使用功率MOSFET，可降低整机的功耗。

特性 Features

• The hall sensor is not needed by 3-phase sensor less drive system.
• The spindle motor driver achieves stability high speed start by ROHM's own energizing method.
• Spindle, stepping and SA stepping achieve high efficiency drive by PWM control driver.
The actuator is able to reduce power consumption by using PWM drive system.
• The loading adopts forward/reverse-rotation drive system.
• ON/OFF of loading and other channels, brake mode of spindle driver, and stand-by mode are selectable by the two control terminals.
• Built-in thermal-shut down circuit.
• Improved heat radiation efficiency utilizing lm-type HTSSOP package with good thermal conductivity.