LSI Computer Systems, Inc. Motor Drivers, Controllers LS7560F-TS

The LS7560F-TS is a brushless DC motor controller designed for three or four-phase motor applications, supporting both open and closed loop configurations. It features a built-in decoder for commutation sequencing, a frequency-to-pulse width converter, and an error amplifier for speed control. The device operates with a power supply range of +10V to +18V and provides CMOS compatible outputs capable of driving external power devices. Key functionalities include cycle-by-cycle current sensing, dynamic motor braking, and fault detection with an indicator output. The controller supports selectable PWM configurations for top and bottom drivers, as well as adjustable sensor spacing for motor compatibility. It also includes high noise immunity Schmitt triggers on sensor inputs and a 6V reference supply for external sensors. The LS7560F-TS is suitable for applications requiring precise motor control and fault management in a compact TSSOP package.