8909 Datasheet (Allegro MicroSystems) - 3-PHASE BRUSHLESS DC MOTOR CONTROLLER/DRIVER WITH BACK-EMF SENSING AND POWER DMOS OUTPUTS

8909, 3-PHASE BRUSHLESS DC MOTOR CONTROLLER/DRIVER WITH BACK-EMF SENSING AND POWER DMOS OUTPUTS

8909 ADVANCE INFORMATION DATA SHEET 3-PHASE BRUSHLESS DC MOTOR (Subject to change without notice) CONTROLLER/DRIVER WITH BACK-EMF SENSING April 3, 1995 AND POWER DMOS OUTPUTS 8909 Data Sheet 26301.10 3-PHASE BRUSHLESS DC MOTOR CONTROLLER/DRIVER WITH BACK-EMF SENSING AND POWER DMOS OUTPUTS SUPPLY OSC C OSC R LDC V BH V BL GND GND CLOCK LOAD SCLK 1 2 3 4 5 6 7 8 9 10 VDD 28 27 26 25 24 23 22 21 20 19 18 17 16 15 VM C TAP OUTC BRAKE FCOM OUTB GND GND R SENSE BKDELAY ERRCAP OUTA The A8909CLB is

8909 Features

* digital adaptive commutation delay, programmable digital commutation timers, and minimal micro overhead during startup. This results in enhanced resynchronization during a power fault followed by a restart. EXCOMM D E N U RE N E I T F N E O R C R S I O D F

* 11 DATA 12 13 VICMD VM AMUX 14