UPD16873B
Overview
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.
- 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)
