BA6467FP-Y

Motor driver ICs 3-phase motor driver for VCR cylinders BA6467FP-Y The BA6467FP-Y is a motor driver developed for cylinders. It contains a power supply with a constant voltage 8V, and a start / stop pin that opens the output. FApplications VCR cylinders FFeatures 1) 3-phase, full-wave, pseudo-linear drive system. 2) Internal constant voltage power supply (8V). 3) Internal thermal shutdown circuit. FAbsolute maximum ratings (Ta = 25_C) FRecommended operating conditions (Ta = 25_C) 754 Motor driver ICs FBlock diagram BA6467FP-Y 755 Motor driver ICs FPin descriptions BA6467FP-Y 756 Motor driver ICs FInput / output circuits (1) Start / stop (ST / SP: pin 9) BA6467FP-Y (2) Torque limit (TL: pin20) (3) Torque control input (EC: pin19, ECR: pin 18) (4) Coil output (A1: pin 6, A2: pin4, A3: pin 3) (5) Hall input (H1): pin10, H1–: pin 11, H2): pin 12, H2–: pin 13, H3): pin 14, H3–: pin 15) 757 Motor driver ICs FElectrical characteristics (unless otherwise noted, Ta = 25_C, VCC = 12V) BA6467FP-Y 758 Motor driver ICs FCircuit operation (1) Hall I / O The 3-phase Hall signal is amplified in the hall amplifiers and sent to the matrix circuit, where the signal is further amplified and combined. After the signal is converted to a current in the amplitude control circuit, the current is supplied to the output driver, which then provides a motor drive current. The phases of the Hall input signal, output voltage, and output current are shown in Fig.1. BA6467FP-Y (2) To...