Drives motors up to 70 W, with torque, speed, and position closed loop control.

Layout

Layout

Specifications

Microcontroller

  • 32bit STM32F303 Cortex M4 core with FPU

  • 72 MHz

  • 40 Kb RAM

  • 256 Kb Flash

H-bridge

  • MC338265 monolithic H-Bridge

  • 5.0 A peak current

  • 3.0 A continuous current

  • 225 mOhm maximum RDS,on

  • Load current feedback (0.24%of load current)

  • Overcurrent limit

  • Output short-circuit protection

  • Temperature protection

  • 20 KHz maximum PWM frequency

Voltage Ratings

Table 1. Recommended Operating Conditions
Parameter Symbol MIN MAX Units

Bus supply voltage

Vbus

5

48

V

Motor supply voltage

Vmot

5

24

V
Table 2. Absolute Maximum Ratings
Parameter Symbol Rating Units

Bus supply voltage

Vbus

0 to 60

V

Motor supply voltage

Vmot

0 to 28

V

Pinout

Encoder 1

The encoder 1 interface allows to connect position / speed encoders with digital quadrature output or analog output.

Table 3. Encoder 1 pinout
Pin # Name Description

1

VCC

Power supply (5V)

2

GND

Ground

3

A

Channel A

4

B

Channel B

5

I

Index

6

ANALOG

Analog input

The encoder port connector is a 6-pin 1.25mm Molex Picoblade (PN 53047-0610, mating connector PN 51021-0600).

Encoder 2

The encoder 2 interface allows to connect position / speed encoders with digital quadrature output or analog output. The encoder 2 can also be used as SPI interface to integrate additional devices.

Table 4. Encoder 2 pinout (Encoder mode)
Pin # Name Description

1

VCC

Power supply (5V)

2

GND

Ground

3

A

Channel A

4

B

Channel B

5

I

Index

6

ANALOG

Analog input

The encoder port connector is a 6-pin 1.25mm Molex Picoblade (PN 53047-0610, mating connector PN 51021-0600).

Table 5. Encoder 2 pinout (SPI mode)
Pin # Name Description

1

VCC

Power supply (3.3V)

2

GND

Ground

3

MISO

Master In - Slave Out

4

MOSI

Master Out - Slave In

5

SCK

Clock

6

CS

Chip Select

The SPI port connector is a 6-pin 1.25mm Molex Picoblade (PN 53047-0610, mating connector PN 51021-0600).

Core bus

Table 6. Core bus pinout
Pin # Name Description

1

GND

Ground

2

VCC

Power supply (5-48V)

3

CANL

CAN Low

4

CANH

CAN High

The CORE bus connector is a 4-pin 2 mm JST PA (PN B04B-PASK, mating connector PN PAP-04V-S).

Debugging interface

Table 7. JTAG/SWD pinout
Pin # Name Pin # Name

1

VCC

2

SWDIO

3

GND

4

SWCLK

5

GND

6

SWO

7

N/U

8

N/U

9

GND

10

RESET

The JTAG port connector is a standard 10-pin 1.27mm Cortex-M JTAG connector.