BD7755RFV is a spindle motor, actuator coil, tilt coil, stepping motor, SA stepping motor and loading motor driver IC developed for desktop Blu-ray drive and Blu-ray recorder. Spindle driver adopts sensorless drive system, and the hall sensor (3 pieces) of the motor position detection is not needed, it is suitable for making of flexible cable conserve wiring and the reductions of external parts. The low rotation mode is built in, and stability and low-speed a rotation is achieved. The spindle, stepping and SA stepping use power MOSFET to reduce power consumption and the actuator, tilt, and loading driver use a linear BTL drive system to reduce noise.
The BD7755RFV is a system motor driver IC designed for spindle, actuator, tilt, loading, and stepping motors in desktop Blu‑ray drives and recorders. It uses a sensor‑less drive system, linear BTL drivers for low noise, and built‑in thermal shutdown.
The document provides detailed electrical characteristics, recommended operating conditions, pin descriptions, block diagrams, test circuits, and ordering information, helping designers integrate the IC into their products.
| Preblock/BTL power supply voltage (Vcc, AVM, LDVM) | 15 V |
|---|---|
| PWM control block power supply voltage (DVcc) | 7 V |
| Operating temperature range | -20 °C to 70 °C |
| Storage temperature range | -55 °C to 150 °C |
| Maximum junction temperature (Tjmax) | 150 °C |
The IC is rated for an operating temperature up to 70 °C.
Yes, the device has a built‑in thermal‑shutdown circuit.