8906
8906 is BIDIRECTIONAL 3-PHASE BRUSHLESS DC MOTOR CONTROLLER/DRIVER WITH BACK-EMF SENSING manufactured by Allegro MicroSystems.
features and modes of operation, such as the speed control parameters, rotational direction, startup current limit, sleep mode, diagnostic modes, and others. The A8906CLB is fabricated in Allegro’s BCD (Bipolar CMOS DMOS) process, an advanced mixed-signal technology that bines bipolar, analog and digital CMOS, and DMOS power devices. The A8906CLB is provided in a 24-lead wide-body SOIC batwing package. It provides for the smallest possible construction in surface-mount applications.
MUX FLL VDD
17 16 15 14 13
PRELIMINARY INFORMATION
Dwg. PP-040B
FEATURES s s s s s s s s s s s s s s s s s s
ABSOLUTE MAXIMUM RATINGS at TA = +25°C
Load Supply Voltage, VBB
- - 14 V Output Current, IOUT
- - . . ±1.25 A Logic Supply Voltage, VDD
- . . . . 6.0 V Logic Input Voltage Range, VIN
- - . -0.3 V to VDD + 0.3 V Package Power Dissipation, PD See Graph Operating Temperature Range, TA
- -
- . . . 0°C to +70°C Junction Temperature, TJ
- . . +150°C† Storage Temperature Range, TS
- -
- -55°C to +150°C
† Fault conditions that produce excessive junction temperature will activate device thermal shutdown circuitry. These conditions can be tolerated, but should be avoided. Output current rating may be restricted to a value determined by system concerns and factors. These include: system duty cycle and timing, ambient temperature, and use of any heatsinking and/or forced cooling. For reliable operation, the specified maximum junction temperature should not be exceeded.
DMOS Outputs Low r DS(on) Startup mutation Circuitry Back-EMF mutation Circuitry Direction Control Serial Port Interface Frequency-Locked Loop Speed Control Sector Data Tachometer Signal Input Programmable Start-Up Current Diagnostics Mode Sleep Mode Linear Current Control Internal Current Sensing Dynamic Braking Through Serial Port Power-Down Dynamic Braking System Diagnostics Data Out Data Out Ported in Real...