UPD16873C

DATA SHEET µPD16873/A/B/C MONOLITHIC 3-ASPECT SPINDLE MOTOR DRIVER MOS Integrated Circuit 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 PWM method Pattern of IND pulse (at 12 pole motor) 3 phase composition output (18 pulses/turn) 1 phase output (6 pulses/turn) 1 phase output (6 pulses/turn) 3 phase composition output (18 pulses/turn) µPD16873 µPD16873A µPD16873B µPD16873C normal normal synchronous synchronous 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...