Motor Drivers 16 pins

DRV8825 Stepper Driver

High-current stepper driver, 2.5A per coil, up to 1/32 step. A4988 compatible layout.

// connector diagram 16 pins

// loading diagram...

// Specifications

Motor Voltage

8.2V – 45V

Output Current

Up to 2.5A per coil

Step Modes

Full through 1/32

Logic Voltage

3.3V – 5V

Package

Module (16-pin carrier)

Fault Output

Yes (FAULT pin)

// Pin Reference Table

Pin	Name	Function	Type
ENABLE	ENABLE	Enable driver, active low	I/O
M0	M0	Microstep select 0	I/O
M1	M1	Microstep select 1	I/O
M2	M2	Microstep select 2	I/O
RESET	RESET	Reset, active low	I/O
SLEEP	SLEEP	Sleep mode, active low	I/O
STEP	STEP	Step pulse input	I/O
DIR	DIR	Direction control	I/O
GND	GND	Ground	GND
VDD	VDD	Logic supply 3.3V–5V	PWR
B2	B2	Coil B2 output	I/O
B1	B1	Coil B1 output	I/O
A1	A1	Coil A1 output	I/O
A2	A2	Coil A2 output	I/O
VMOT	VMOT	Motor supply 8.2V–45V	PWR
FAULT	FAULT	Fault indicator, active low	I/O

The DRV8825 is a stepper motor driver with up to 2.5A per coil and 1/32 microstepping. It has pin-compatible layout with the A4988 but supports higher current and finer stepping. Pin-compatible with A4988 carrier boards.