12 V Voice Coil Motor Vcm Driver And Spindle Motor Pre-driver Combination Chip

The TDA5149G is a combination of a voice coil motor driver and a spindle motor pre-driver, capable of operating 12 V high-performance hard disk drives. The device integrates a spindle pre-driver that drives three external N-channel Power MOSFETs in order to drive a three-phase brushless, sensorless DC motor in full wave mode. In the normal mode, commutations are generated from the internal Back EMF (BEMF) sensing circuitry. Commutations, however, CAN also be generated from an external source, thereby providing the possibility of driving the motor in the stepper-motor mode. The VCM driver is a linear transconductance Amplifier capable of handling currents up to 1.65 A. It allows external adjustment of the gain and compensation. The TDA5149G also contains two drivers for a latch that secures the heads in the event of power-down. To control functions such as park, brake, sleep or disable and to program the different Timing parameters, the TDA5149G is provided with a three-wire serial port. A high precision voltage monitor is also included, for both 5 and 12 V power supplies. Finally, the IC contains a temperature monitor circuit and an uncommitted Operational Amplifier connected to VDD, which CAN be used freely within the application. The device is contained in a LQFP64 package with 4 pins connected to the lead frame for improved heat dissipation. By NXP Semiconductors
TDA5149G 's PackagesTDA5149G 's pdf datasheet

TDA5149G Pinout, Pinouts
TDA5149G pinout,Pin out
This is one package pinout of TDA5149G,If you need more pinouts please download TDA5149G's pdf datasheet.

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