A3967 Stepper Motor Driver

Stufin

A3967 Stepper Motor Driver

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Description: 1. Microstepping: The A3967 is a high-performance, full-bridge driver capable of microstepping as fine as 1/32 step at 1.8° per step for precise positioning in open-loop applications. 2. Current Rating: This driver can handle up to 3A continuous current and 4.5A peak current per phase, making it suitable for a wide range of stepper motor sizes and applications. 3. Efficiency: Featuring an efficient design with low power consumption, the A3967 ensures minimal heat dissipation during operation while reducing overall energy usage. 4. Compatibility: The driver supports both unipolar and bipolar stepper motors with a wide voltage range of 10V to 50V and can be used in various microcontroller platforms like Arduino, PIC, etc., via different interfaces (UART, SPI, I2C). 5. Protection: The driver includes several protection features such as over-current, over-voltage, short circuit, and thermal shutdown to ensure safe operation for the motor and other components. 6. Drive Modes: The A396

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Specification	Details
Part Number	A3967
Package	TSSOP-20
Supply Voltage	4.5V to 45V (up to 60V with derating)
Current Rating	Up to 2A per phase
Driver Type	Microstepping Bipolar Stepper Motor
Stepping Mode	1/16th step 1/8th step Full Step
Microstep Resolution	256 (for 1/16th stepping)
Current Limiting	Programmable via REXT pin
Overcurrent Protection	Thermal shutdown with reset
Thermal Shutdown Temperature	140°C
Operating Temperature	-40°C to +85°C
Storage Temperature	-65°C to +150°C
Package Pins	20 (TSSOP)