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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 Ω (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).
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