Infineon BTN7030-1EPA Manual de usuario

User Manual Rev. 1.0

www.infineon.com 2021-01-21

Motor Control Shield for Arduino

Motor Control Shield for Arduino with BTN7030-

1EPA

About this document

Scope and purpose

This document describes how to use the Motor Control Shield with BTN7030-1EPA for Arduino.

Intended audience

Engineers, hobbyists and students who want to add a powerful Motor Control to Arduino projects.

Related information

Table 1 Supplementary links and document references

Reference

Description

BTN7030-1EPA Reference Manuals

Product page which contains reference information

for the half-bridge BTN7030-1EPA

Arduino Home Page

All information on Arduino

Arduino Uno Product Page

Arduino Uno R3 description

XMC-for-Arduino

Instruction on how to install SEGGER J-Link

XMC1100 Boot Kit

Product page which contains reference information

for the XMC1100 Boot Kit

uIO Stick

Product page

User Manual 2 Rev. 1.0

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Motor Control Shield for Arduino with BTN7030-1EPA

Motor Control Shield introduction

Table of Contents

About this document....................................................................................................................... 1

Table of Contents ........................................................................................................................... 2

1Motor Control Shield introduction ................................................................................... 3

1.1 Motor Control Shield overview ...............................................................................................................3

1.2 Key features.............................................................................................................................................3

1.3 Block diagram of a full-bridge Motor Control ........................................................................................5

2Motor Control Shield board description............................................................................ 6

2.1 Schematics ..............................................................................................................................................6

2.2 External components..............................................................................................................................7

3BTN7030-1EPA overview................................................................................................. 9

3.1 Key features of the BTN7030-1EPA Novalith IC™ ...................................................................................9

3.2 Block diagram........................................................................................................................................10

3.3 Pin assignment......................................................................................................................................11

3.4 Pin definitions and functions BTN7030-1EPA ......................................................................................11

4Getting started.............................................................................................................12

4.1 Target applications ...............................................................................................................................12

4.1.1 Getting started: Arduino Shield.......................................................................................................12

4.1.2 Getting started: uIO Stick Software.................................................................................................13

5Revision history............................................................................................................15

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Motor Control Shield for Arduino with BTN7030-1EPA

1Motor Control Shield introduction

1.1 Motor Control Shield overview

The Motor Control Shield adds powerful motor control to the Arduino projects. The shield can be controlled

with the general logic IO-Ports of a microcontroller. Either an Arduino Uno R3 or the XMC1100 Boot Kit from

Infineon can be used as the master. Another way to control this board is via uIO Port using Infineon uIO Stick.

The device is a monolithic chip integrated in SMART7 technology. BTN7030-1EPA is a protected half-bridge with

integrated driver, providing protection and diagnosis functions. The high side power stage is built using a N-

channel vertical power MOSFET with charge pump, while the low side power stage uses no charge pump. This

device has an exposed pad which ensures better cooling.

The BTN7030-1EPA half-bridge is easy to control by applying logic level signals to the IN and EN pin. When

applying a PWM to the IN pin the current provided to the motor can be controlled with the duty cycle of the

PWM. BTN7030-1EPA NovalithICTM Lite are intended to be used for frequencies up to 2kHz.

1.2 Key features

The Motor Control Shield has the following features:

An Arduino Uno R3 or XMC1100 Boot Kit can control the two BTN7030-1EPA devices via the general IO pins.

6 –18 V nominal input voltage (max. 3.8 –28 V)

Typical nominal current 7 A (current limitation is temperature dependent - 14 A @150ºC)

Drives either one brushed bi-directional DC motor or two uni-directional DC motors.

Capable of PWM up to 2 kHz

Status flag diagnosis with current sense capability

Current sense accuracy ~ 5%

Protection against overtemperature, overcurrent, cross current, undervoltage

Voltage clamping

OFF state diagnosis (missing load and short circuit to battery or ground)

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Motor Control Shield for Arduino with BTN7030-1EPA

Figure 1 Motor Control Shield photo

As shown in Figure 1 in order to enable the usage of IC2 it is necessary to solder together the two pads marked

in blue frame.

ArduinoTM headers

BTN7030-1EPA

OUT2

OUT1

GND

IC2 enable

uIO Stick Port

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Motor Control Shield for Arduino with BTN7030-1EPA

1.3 Block diagram of a full-bridge Motor Control

As a starting point for the Motor Control Shield, the application block diagram shown in Figure 2 was used. To

be flexible in the usage of the Motor Control Shield each IN, EN and DEN of the two half-bridges is connected to

a separate IO pin.

Figure 2 Application circuit for a bi-directional motor control with BTN7030-

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Motor Control Shield for Arduino with BTN7030-1EPA

2Motor Control Shield board description

For a safe and sufficient motor control design, discrete components are needed. Some of them must be

dedicated to the motor application and some to the NovalithIC™ Lite.

Figure 3, Figure 4 show the schematics plus the corresponding layout of the Motor Control Shield.

2.1 Schematics

In Figure 3 the schematics of the Motor Control Shield is shown. The schematics are based on the application

circuit in the BTN7030-1EPA Data Sheet.

Figure 3 Schematics Motor Control Shield for Arduino with BTN7030-1EPA

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Motor Control Shield for Arduino with BTN7030-1EPA

Figure 4 Motor Control Shield for Arduino with BTN7030-1EPA –Layout

2.2 External components

All the external components shown in Figure 2 are described in the BTN7030-1EPA Design and PCB guideline

Application Note. Besides these components there are some others placed on this Arduino Shield in order to

insure the proper functioning.

C4, so called DC-link capacitor: This electrolytic capacitor is required to keep the voltage ripple at the VS-

pin low during switching operation. It is usually recommended that the voltage ripple at the Vs-pin to the GND-

pin is kept below 1 V peak to peak. The value of C4 must be aligned accordingly. Most electrolytic capacitors are

less effective at cold temperatures. It must be assured that C4 is also effective under the worst case conditions

of the application. The layout is very important too. As shown in Figure 4, the capacitor C4 must be positioned

with very short wiring close to the NovalithIC™ Lite chip. This must be done to keep the parasitic inductors of

the PCB-wires as small as possible. On this shield capactior of 330 uF is mounted.

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User Manual 8 Rev. 1.0

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Motor Control Shield for Arduino with BTN7030-1EPA

C1/C3: This ceramic capacitors support C4 to keep the supply voltage ripple low and cover the fast

transients between the Vs-pin and the GND-pin. The layout wiring for C1/C3 must be shorter than for C4 to the

NovalithIC™ Lite to keep the parasitic PCB-wire inductance as small as possible. In addition the parasitic

inductance could be kept low by placing at least two vias for the connection to the GND-layer. On this shield

capactiors of 68 nF are mounted.

C6/C8: These ceramic capacitors are important for EMI. Good results have been achieved with a value of 220

nF. In terms of layout, it is important to place these capacitors between “OUT” and “Vs” without significant

additional wiring from C6/C8 to the Vs- and OUT-line. These capacitors are not mounted on this shield.

C5/C2: These ceramic capacitor help to improve the EMC immunity and the ESD performance of the

application. Good results have been achieved with a value of 220 nF. To keep the EMC and ESD out of the board,

the capacitor is most effective when positioned directly next to the board connector. In addition, the parasitic

inductance could be kept low by placing at least two vias for the connection to the GND-layer. These capacitors

are not mounted on this shield.

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Motor Control Shield for Arduino with BTN7030-1EPA

3BTN7030-1EPA overview

The BTN7030-1EPA used in the Motor Control Shield is an integrated high current half-bridge for motor drive

applications. Interfacing to a microcontroller is made easy by the integrated driver IC which features logic level

inputs, diagnosis with current sense, dead time generation, short circuit detection and protection against

overtemperature, undervoltage, overcurrent and cross current.

The BTN7030-1EPA provides a cost optimized solution targeting low power (<15 A) DC motor applications with

0 –2 kHz.

3.1 Key features of the BTN7030-1EPA Novalith IC™

Path resistance of max. 62 mΩ @ 150°C (typ. 32 mΩ @ 25°C)

High side: max. 25.5 mΩ @ 150°C (typ. 12 mΩ @ 25°C)

Low side: max. 36.5 mΩ @ 150°C (typ. 20 mΩ @ 25°C)

Current limitation level of 14 A @ 150°C, 17 A @ 25°C

Status flag diagnosis with current sense capability

Overtemperature shut down with latch behavior

Undervoltage shut down

Cross current protection

Open load in ON and OFF detection

Short circuit to GND and VBAT detection

Driver circuit with logic level inputs

Operation up to 28 V (normal operation 6V –18V)

Green Product (RoHS compliant)

AEC Qualified in PG-TSDSO-14 package

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Motor Control Shield for Arduino with BTN7030-1EPA

3.2 Block diagram

The device is a monolithic chip integrated in SMART7 technology. BTN7030-1EPA is a protected half-bridge with

integrated driver, providing protection and diagnosis functions. The high side power stage is built using a N-

channel vertical power MOSFET with charge pump, while the low side power stage uses no charge pump. This

device has an exposed pad which ensures better cooling.

Figure 5 Block diagram BTN7030-1EPA

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