A3967 Bipolar Stepper Motor Pinout Diagram, Terminal List and Datasheet

The A3967 is a complete microstepping motor driver with built-in translator. The translator will simply inputting one pulse on the STEP input then the

A3967 Bipolar Stepper Motor Pinout Diagram, Terminal List and Datasheet -The A3967 is a complete microstepping motor driver with built-in translator. The translator will simply inputting one pulse on the STEP input then the motor will take one step of bipolar stepper motors in full-, half-, quarter-, and eighth-step operation modes.

We will provide you with the A3967 Pinout Diagram (including terminal list and description) in the datasheet.

In the A3967 datasheet, you can find information about its functional description for such Reset Input, Step Input, Microstep Select, Direction Input, Internal PWM Current Control, Fixed Off-Time, RC Blanking, Enable Input, Shutdown, Sleep Mode, Percent Fast Decay Input, and Mixed Decay Operation.

Also, there are Layout, Grounding, Current Sensing and Thermal protection in the application information section.

The figure above shows you the A3967 Bipolar Stepper Motor Pinout Diagram. The terminal list of the device is provided as follows:

Terminal List of the A3967

Terminal Name	Terminal Description	Terminal Number
REF	Gm reference input	1
RC2	Analog input for fixed offtime – bridge 2	2
SLEEP	Logic input	3
OUT2B	H bridge 2 output B	4
LOAD SUPPLY2	VBB2, the load supply for bridge 2	5
GND	Analog and power ground	6,7
SENSE2	Sense resistor for bridge 2	8
OUT2A	H bridge 2 output A	9
STEP	Logic input	10
DIR	Logic input	11
MS1	Logic input	12
MS2	Logic input	13
LOGIC SUPPLY	VCC, the logic supply voltage	14
ENABLE	Logic input	15
OUT1A	H bridge 1 output A	16
SENSE1	Sense resistor for bridge 1	17
GND	Analog and power ground	18, 19
LOAD SUPPLY1	VBB1, the load supply for bridge 1	20
OUT1B	H bridge 1 output B	21
RESET	Logic input	22
RC1	Analog Input for fixed offtime – bridge 1	23
PFD	Mixed decay setting	24

For your information, A3967 is the substitute for UCN5804B since it has discontinued product (source: allegromicro.com)

Tags: Bipolar Stepper Motor, Stepper Motor Datasheet, Pinout Diagram,