A8980CJT
features and system diagnostics are provided via a serial interface under the direction of an external microcontroller. The large-scale integration and use of advanced DABi C™ (digital/analog-Bi CMOS) merged technologies results in minimum power dissipation, minimum operating voltage requirements, and minimum external ponents. The spindle drive function incorporates a three-phase MOS power driver and a back-EMF sensing motor mutation scheme. Internal logic and analog circuitry provide plete start-up and µC-assisted run modes without the need for snubbers or other external ponents. Additional headroom is achieved by a proprietary circuit, which eliminates the need for an external current-sense resistor. Intrinsic ground clamp and flyback diodes are also provided.
Data Sheet 26310
SUPERSERVO SPINDLE & VOICE-COIL ACTUATION MANAGER/DRIVER
C TAP
MULTIPLEXER
BACK-EMF and MUTATION LOGIC
SPIN-DEMAND
SERVO-DEMAND
ABSOLUTE MAXIMUM RATINGS at TA = +25° C
Load Supply Voltage, VCC(PWR)...
