Cytron HAT-MDD10 User guide

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Product User’s Manual – HAT-MDD10

HAT-MDD10

10Amp DC Motor Driver for

Raspberry Pi

User's Manual

V1.0

Mac 2017

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Product User’s Manual – HAT-MDD10

INDEX

1. Introduction/Overview 3

2. Packing List 4

3. Board Layout 5

4. Product Specification 8

5. Dimension 9

6. Getting Started 10

7. Warranty 11

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Product User’s Manual – HAT-MDD10

1. INTRODUCTION/OVERVIEW

HAT-MDD10 is designed to drive two high current brushed DC motor up to 10A

continuously by using Raspberry Pi as a controller. It offers several enhancements such as support for both locked-antiphase and sign-magnitude PWM signal as well as using full solid state components which result in faster response time and eliminate the wear and tear of the mechanical relay.

The HAT-MDD10 has been designed with the capabilities and features of:

● Bi-directional control for two brushed DC motor.

● Support motor voltage ranges from 6V to 24V.

● Maximum current up to 10A continuous (without heatsink at 25℃) and 30A peak (10

second).

● Current limiting at 30A.

● 3.3V and 5V logic level input.

● Raspberry Pi compatible connector.

● Manual/test button to fast verification.

● Solid state components provide faster response time and eliminate the wear and tear

of mechanical relay.

● Fully NMOS H-Bridge for better efficiency and no heat sink is required.

● Speed control PWM frequency up to 20KHz (Actual output frequency is same as

input frequency).

● Support both locked-antiphase and sign-magnitude PWM operation.

● Support TTL PWM from microcontroller, not PWM from RC receiver.

● Dimension:67.5mm x 59mm

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2. PACKING LIST

Please check the parts and components according to the packing list. If there are any parts missing, please contact us at [email protected] immediately.

1. 1 x Hat-MDD10 10A DC Motor Driver.

2. 1 x PC104 Header Pin (2x20) (CN-PH-PC104)

3. User’s manual can be downloaded from https://www.cytron.io/p-hat-mdd10

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3. BOARD LAYOUT AND SPECIFICATION

Label

Function

Terminal Block

Motor1 LED Indicator

Motor2 LED Indicator

Motor1 Test Switch

Motor2 Test Switch

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Product User’s Manual – HAT-MDD10

Raspberry Pie Connector

Power LED Indicator

PWM1 input (GPIO12)

DIR1 input (GPIO26)

PWM2 input (GPIO13)

DIR2 input (GPIO24)

1. Terminal Block – Connect to motor and power source.

Pin Name

Description

M1A

Connect to motor1 terminal A

M1B

Connect to motor1 terminal B

Positive Supply (6V to 24V*1)

GND

Negative Supply

M2A

Connect to motor2 terminal A

M2B

Connect to motor2 terminal B

*1: Absolute Maximum

2. M1A/M2A LED Indicator – Turns on when the output A is high and output B is low. Indicates the current flows from output A to B.

3. M1B/M2B LED Indicator – Turns on when the output A is low and output B is high. Indicates the current flows from output B to A.

4. M1A/M2A Test Switch – When this button is pressed, current flows from output A to B and motor will turn CW (or CCW depending on the connection).

5. M1B/M2B Test Switch – When this button is pressed, current flows from output B to A and motor will turn CCW (or CW depending on the connection).

6. Input

Pin Name

Description

GND

Logic ground.

**PWM1 (GPIO12)

PWM input for motor 1 speed control

DIR1 (GPIO26)

Direction control for motor 1.

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**PWM2 (GPIO13)

PWM input for motor 2 speed control

DIR2 (GPIO24)

Direction control for motor 2.

**Note that it is not for RC PWM operation

The truth table for the control logic is as follow:

Pin PWM

Pin DIR

Output A

Output B

Low

X (Don’t care)

Low

High

Low

High

Low

High

Low

High

7. Power LED Indicator – Power LED. Should be on when the board is powered on.

4. PRODUCT SPECIFICATION AND LIMITATIONS

Absolute Maximum Rating

No.

Parameters

Min

Typical

Max

Unit

Power Input Voltage

6-24V2

MAX

(Maximum Continuous Motor Current)

--10A3

PEAK

– (Peak Motor Current) *

--30A4

IOH

(Logic Input – High Level)

3-5.5V5

IOL

(Logic Input – Low Level)

000.5V6

Maximum PWM Frequency **

--20

KHz

* Must not exceed 10 seconds. ** Actual output frequency is same as input frequency. *** Tested in room temperature.

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5. DIMENSION

Footprint Dimension

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6. GETTING STARTED

Hat-MDD10 is compatible with 2 types of PWM operation, which are:

1. Sign-Magnitude PWM – For sign-magnitude PWM operation, 2 different control signals are used to control the speed and direction of the motor. PWM is feed to the PWM pin to control the speed while DIR pin is used to control the direction of the motor.

2. Locked-Antiphase PWM – For locked-antiphase PWM operation, only 1 control signal is needed to control the speed and direction of the motor, while another input is to enable the driver. PWM pin is connected to logic high while the DIR pin is being feed with the PWM signal. When the PWM signal has 50% duty cycle, the motor stops running. If the PWM has less than 50% duty cycle, the motor will turn CW (or CCW depending on the connection). If the PWM signal has more than 50% duty cycle, motor will turn CCW (or CW depending on the connection).

Sample connection diagram is as follow:

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6. WARRANTY

● Product warranty is valid for 12 months.

● Warranty only applies to manufacturing defect.

● Damaged caused by misuse is not covered under warranty

● Warranty does not cover freight cost for both ways.

Prepared by:

Cytron Technologies Sdn. Bhd.

No. 1, Lorong Industri Impian 1,

Taman Industri Impian, 14000 Bukit Mertajam,

Pulau Pinang, Malaysia.

Tel: +604-548 0668 Fax: +604-548 0669

URL: www.cytron.io Email: [email protected]

[email protected]