Datasheet

Packing List

 (1) MC33926 Dual Carrier Board

 25-pin Straight Breakaway male Header

 (3) 2-pin 3.5mm Terminal Blocks

Additional Items Required

 Soldering Iron and solder

 Safety glasses

 Heat sink (optional)

General Specifications

Motor Driver: MC33926

Motor Channels: 2

Minimum Operating Voltage: 5V

Maximum Operating Voltage: 28V

Continuous Output Current per Channel: 2.5A

Current Sense: 0.525V/A

Maximum PWM Frequency: 20 kHz

Minimum Logic Voltage: 2.5V

Maximum Logic Voltage: 5.5V

Reverse Voltage Protection?: YES

Notes:

1) Operation from 5-8V reduces maximum current output.

2) The device is protected from transients up to 40V.

3) The Continuous output current can be improved with the addition of a heat sink.

4) SLEW pin should be HIGH for frequencies above 10kHz.

5) Voltage protection is on Motor Voltage only, Logic Voltage does not have reverse protection.

Basic Application Connections

In a typical application, five I/O lines are used to connect each motor driver channel to a microcontroller:

the two input lines, IN1 and IN2, for direction control, one of the disable lines, D1 or D2, for PWM speed

control, the current sense output, FB, for monitoring motor current draw (connected to an analog-to-digital

converter input) and the status flag, SF, for monitoring motor driver errors. The control lines can be

reduced to two pins per channel if PWM signals are applied directly to the two input pins with both disable

pins held inactive. In each of these cases, the other unused lines must be set to enable proper operation.