DRV8833 provides a dual-channel bridge motor driver solution for toys, printers and other mechatronics applications. The device has two H-bridge drivers and can drive two direct current (DC) brush motors, a bipolar step motor, solenoids or other inductive loads. The output driver module of each H-bridge consists of N-channel power MOSFETs. These N/IOSFETs are configured as an H-bridge to drive the motor windings. Each H-bridge includes circuits for regulating or limiting the winding current. With the correct PCB design, each H-bridge of the DRV8833 can continuously provide up to 1.5-ARMS (or DC) drive current (at 25°C and using a 5WM power supply). Each H-bridge can support peak currents up to 2A. Under lower VM voltage conditions, the current supply capacity slightly decreased. The device provides an internal shutdown function implemented with a fault output pin for: overcurrent protection, short circuit protection, undervoltage lockout and overheating. In addition, a low-power sleep mode is also provided.
Product Parameters:
Motor voltage: 2.7V~10.8V
Peak current: 2A
Low on-resistance of MOSFET: HS + LS 360mΩ
Pin Description:
Vmotor: Motor voltage interface
GND: power ground
VM: device power
AIN1: Motor A H bridge input 1
AIN2: Motor A H bridge input 2
BIN1: Motor B H bridge input 1
BIN2: Motor B H bridge input 2
SLP: sleep mode input
FLT: fault output, when thermal shutdown or overcurrent occurs
A0UT1: Motor A H bridge output 1
A0UT2: Motor A H bridge output 2
B0UT1: Motor B H bridge output 1
B0UT2: Motor B H bridge output 2
AISEN: Bridge A ground (connected to the current detection resistor for bridge A, if no current control is required, connect to GND)
BISEN: Bridge B ground
Instructions for use
Each H-bridge has two digital inputs (half of each bridge). You can use the PWM input to control the motor speed and run at 2.7V-10.8V logic/motor power. The motor voltage is the same as the logic voltage.
