KA3084D

www.fairchildsemi.com KA3084D 2-Phase BLDC Motor Driver Features Drives the BLDC motor using 2 hall sensors. 2-phase, full-wave drive method Built-in thermal shutdown (TSD) circuit Controls the motor speed through voltage Built-in bandgap circuit Built-in frequency Generator (FG) & Phase Generator (PG) amplifier & comparator. Description The KA3084D is a monolithic integrated circuit, and it is suitable for drum motor driver of VCR system. 22-SOP-300 Target Applications Video cassette recorder(VCR) cylinder (drum) motor Other 2-phase BLDC motor Ordering Information Device KA3084D Package 22-SOP-300 Operating Temp. −25°C ~ +75°C −25°C ~ +75°C KA3084DTF 22-SOP-300 Rev. 1.0.1 February. 2000. ©2000 Fairchild Semiconductor International 1 KA3084D Pin Assignments FGAMPOUT PGAMPOUT FGOUT PGOUT VERG PGIN FGIN VCTL H2N 22 21 20 V25 19 18 17 16 15 14 13 12 KA3084D 1 GND(Signal) 2 VCC2 3 OUT2P 4 GND2(Power) 5 OUT2N 6 OUT1P 7 GND1(Power) 8 OUT1N 9 VCC1 10 H1P 11 H1N Pin Definitions Pine Number 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 Pin Name GND (Signal) VCC2 OUT2P GND2 (Power) OUT2N OUT1P GND1 (Power) OUT1N VCC1 H1P H1N H2P H2N VCTL PGOUT PGAMPOUT PGIN VREG FGIN V25 FGAMPOUT FGOUT I/O O O O O I I I I I O O I O I I/O O O Pin Function Description Ground (Signal) Power supply 2 Output drive 2(P) Power ground 2 Output drive 2(N) Power supply 1(P) Power ground 1 Output drive 1(N) Power supply 1 Hall signal input 1P H...