DESCRIPTION

μPD16873/A/B/C is 3 aspect spindle motor driver that composed by CMOS control circuit and MOS bridge output.

The consumption electric power can be substantially reduced to the screwdriver which used a conventional Bipolar transistor by the adoption of 3 aspect all-wave PWM methods and making an output paragraph MOSFET.

FEATURES

? Low On resistance. (The summation of the on resistance of the upper and lower MOSFET) RON = 0.6 ? (TYP.)

? Low consumption power for 3 aspects all-wave PWM drive method.

? Index pulse (FG pulse) output function built in.

? By the PWM-drive form and the IND pulse pattern, 4 kind, line-up

? Built in STANDBY terminal and off the inner circuit at the time of the standby.

? Built in START/STOP terminal. Operating short brake works, when ST/SP terminal is off state.

? Supply voltage: 5 V drive

? Low consumption current: IDD = 3 mA (MAX.)

? Thermal shut down circuit (TSD) built in.

? Over current protection circuit built in. (Setting by outside resistance)

? Low voltage malfunction prevention circuit built in.

? Reverse turn prevention circuit built in.

? Hall bias switch built in. (synchronized STB signal.)

? Loading into 30-pin plastic TSSOP (300 mil).