BD6889GU Description
The BD6889GU is a motor driver that integrates 6 Full-ON type H-Bridges and 1 Linear Constant-Current type H-Bridge. The device is intended to drive three stepping motor for auto focus system, zoom, and iris, and making it possible to design a sophisticated, high precision lens drive system.
BD6889GU Key Features
- Low ON-Resistance Power CMOS Output
- 4 Digital NPN Transistor Circuits for Rectangular Waveform of Photo-Interrupter: Input-Dividing Type with Output Pull-up
- 4 Digital PNP Transistor Circuits for Rectangular Waveform of Photo-Interrupter: Input-Dividing Type with Output Pull-do
- Voltage-Regulator Circuit for Photo-Interrupter
- High-Precision (0.9V±2%) Reference Voltage Output
- Phase pensation Capacitor-Free Design for Linear Constant-Current Drive Block
- High-Precision (±3%) Linear Constant-Current Driver
- Under Voltage Locked Out Protection & Thermal Shut Down Circuit