A3973SLB View Datasheet(PDF) - Allegro MicroSystems
Part Name
Description
MFG CO.
'A3973SLB' PDF : 12 Pages View PDF
3973
DUAL DMOS FULL-BRIDGE
MICROSTEPPING PWM MOTOR DRIVER
MOTOR DRIVERS
Function
Output Ratings*
Part Number†
INTEGRATED CIRCUITS FOR BRUSHLESS DC MOTORS
3-Phase Power MOSFET Controller
—
28 V
3933
3-Phase Power MOSFET Controller
—
50 V
3932
3-Phase Power MOSFET Controller
2-Phase Hall-Effect Sensor/Driver
—
400 mA
50 V
26 V
7600
3626
Bidirectional 3-Phase Back-EMF Controller/Driver
±600 mA
14 V
8906
2-Phase Hall-Effect Sensor/Driver
3-Phase Back-EMF Controller/Driver
900 mA
±900 mA
14 V
14 V
3625
8902–A
3-Phase Controller/Drivers
±2.0 A
45 V
2936 & 2936-120
INTEGRATED BRIDGE DRIVERS FOR DC AND BIPOLAR STEPPER MOTORS
Dual Full Bridge with Protection & Diagnostics
PWM Current-Controlled Dual Full Bridge
PWM Current-Controlled Dual Full Bridge
PWM Current-Controlled Dual Full Bridge
PWM Current-Controlled Dual Full Bridge
PWM Current-Controlled Dual Full Bridge
PWM Current-Controlled Dual Full Bridge
PWM Current-Controlled Dual DMOS Full Bridge
PWM Current-Controlled Full Bridge
PWM Current-Controlled Dual Full Bridge
PWM Current-Controlled Microstepping Full Bridge
PWM Current-Controlled Microstepping Full Bridge
PWM Current-Controlled Dual DMOS Full Bridge
Dual Full-Bridge Driver
PWM Current-Controlled Full Bridge
DMOS Full Bridge PWM Driver
±500 mA
±650 mA
±650 mA
±750 mA
±750 mA
±750 mA
±800 mA
±1.0 A
±1.3 A
±1.5 A
±1.5 A
±1.5 A
±1.5 A
±2.0 A
±2.0 A
±2.0 A
30 V
30 V
30 V
45 V
45 V
45 V
33 V
35 V
50 V
45 V
50 V
50 V
50 V
50 V
50 V
50 V
3976
3966
3968
2916
2919
6219
3964
3973
3953
2917
3955
3957
3972
2998
3952
3958
Dual DMOS Full Bridge
±2.5 A
50 V
3971
UNIPOLAR STEPPER MOTOR & OTHER DRIVERS
Voice-Coil Motor Driver
Voice-Coil Motor Driver
±500 mA
±800 mA
6V
16 V
8932–A
8958
Unipolar Stepper-Motor Quad Drivers
1A
46 V
7024 & 7029
Unipolar Microstepper-Motor Quad Driver
Unipolar Stepper-Motor Translator/Driver
1.2 A
1.25 A
46 V
50 V
7042
5804
Unipolar Stepper-Motor Quad Driver
1.8 A
50 V
2540
Unipolar Stepper-Motor Quad Driver
Unipolar Stepper-Motor Quad Driver
1.8 A
3A
50 V
46 V
2544
7026
Unipolar Microstepper-Motor Quad Driver
3A
46 V
7044
* Current is maximum specified test condition, voltage is maximum rating. See specification for sustaining voltage limits
or over-current protection voltage limits. Negative current is defined as coming out of (sourcing) the output.
† Complete part number includes additional characters to indicate operating temperature range and package style.
Also, see 3175, 3177, 3235, and 3275 Hall-effect sensors for use with brushless dc motors.
115 Northeast Cutoff, Box 15036
12
Worcester, Massachusetts 01615-0036 (508) 853-5000
Share Link: 
