ROHM BD7755RFV System Motor Driver IC

Description

Image

Features

1) The low-speed stability rotation is achieved with built-in the low rotation mode.

2) The hall sensor is unnecessary according to 3 aspect sensorless drive system.

3) The spindle motor driver achieves stability high speed start by ROHM's own energizing method.

4) Highly effective spindle, stepping and SA stepping is achieved by PWM control driver. And the output current detection

resistance of stepping and SA stepping is unnecessary by built-in internal detection circuit.

5) The actuator, tilt and loading driver achieve low noise by using linear BTL drive system.

6) ON/OFF of loading and other channels, brake mode of spindle driver and standby mode are selectable by the two

control terminals.

7) Built-in thermal-shut down circuit.

8) Improved heat radiation efficiency utilizing HTSSOP package.

APPLICATIONS

For desktop Blu-ray drive