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8906

Allegro MicroSystems
Part Number 8906
Manufacturer Allegro MicroSystems
Description BIDIRECTIONAL 3-PHASE BRUSHLESS DC MOTOR CONTROLLER/DRIVER WITH BACK-EMF SENSING
Published Mar 22, 2005
Detailed Description 8906 BIDIRECTIONAL 3-PHASE BRUSHLESS DC MOTOR CONTROLLER/DRIVER WITH BACK-EMF SENSING LOAD SUPPLY C D2 C WD CST OUTA GRO...
Datasheet PDF File 8906 PDF File

8906
8906

Overview
8906 BIDIRECTIONAL 3-PHASE BRUSHLESS DC MOTOR CONTROLLER/DRIVER WITH BACK-EMF SENSING LOAD SUPPLY C D2 C WD CST OUTA GROUND GROUND OUT B OUT C CENTERTAP BRAKE C RES 1 2 V BB COMMUTATION DELAY 24 23 C D1 DATA IN CLOCK CHIP SELECT RESET GROUND GROUND DATA OUT OSCILLATOR LOGIC SUPPLY SECTOR DATA FILTER Data Sheet 26301.
4 SERIAL PORT 3 4 5 6 7 8 9 9 10 11 12 BOOST CHARGE PUMP 22 21 20 19 18 The A8906CLB is a bidirectional three-phase brushless dc motor controller/driver.
The three half-bridge outputs are low on-resistance nchannel DMOS devices capable of driving up to 1 A.
The A8906CLB provides complete, reliable, self-contained back-EMF sensing motor startup and running algorithms.
A programmable digital frequencylocked loop speed control circuit together with the linear current control circuitry provides precise motor speed regulation.
A serial port allows the user to program various features and modes of operation, such as the speed control parameters, rotational direction, startup...


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