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Gate Drivers Overview Slide 22

The half-bridge gate driver is a common architecture, the ST L6480 is a dual H-bridge gate driver that is unique on the market. The L6480, called C-Spin, integrates a dual H-bridge gate driver for stepper motors. In fact, all the parameters of the L6480 are handled through an SPI bus. For instance the gate current, gate voltage, and dead time are programmed digitally. This part integrates many more features than simple gate drivers. It works in voltage control mode and allows an outstanding 128 µsteps. This part integrates intelligence and a motion engine. With some simple commands sent by the microcontroller via the SPI the L6480 will handle all the motion of the motor. The L6480 is similar to the L6470 in that it is a monolithic solution.

PTM Published on: 2013-04-23