DatasheetsPDF.com

8909

Allegro MicroSystems
Part Number 8909
Manufacturer Allegro MicroSystems
Description 3-PHASE BRUSHLESS DC MOTOR CONTROLLER/DRIVER WITH BACK-EMF SENSING AND POWER DMOS OUTPUTS
Published Mar 22, 2005
Detailed Description 8909 ADVANCE INFORMATION DATA SHEET 3-PHASE BRUSHLESS DC MOTOR (Subject to change without notice) CONTROLLER/DRIVER WIT...
Datasheet PDF File 8909 PDF File

8909
8909

Overview
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 a three-phase brushless, back-EMF sensing, spindle-motor driver that integrates analog bipolar, analog and digital CMOS control functions, and DMOS power outputs on a single monolithic chip.
It provides complete back-EMF sensing, commutation control, and drive of a spindle motor, and provides for an orderly spindown in the event of supply-voltage removal.
Energy for retracting the heads is regenerated from the spinning motor, while a controlled delay allows for a full retract before dynamic bra...


Similar Datasheet


Since 2006. D4U Semicon,
Electronic Components Datasheet Search Site. (Privacy Policy & Contact)