Infineon TLE94112ES User Manual

User Manual Revision 1.0

www.infineon.com 2020-12-08

DC Motor Control HAT with TLE94112ES

Complies with the Raspberry Pi HAT specification

About this document

Scope and purpose

This user manual describes the DC motor control HAT equipped with the TLE94112ES, a twelve-fold half­bridge driver with integrated power stages. This document provides detailed information on the board’s
content, layout and use. It should be used in conjunction with the TLE94112ES datasheet, which contains
full technical details on the device specification and operation.

Intended audience

Engineers, hobbyists and students who want to add a powerful motor control to their projects.

Related information

Table 1 Supplementary links and document references

Reference

Description

TLE94112ES datasheet

Product page which contains reference information for the multiple
half-bridge driver TLE94112ES

TLE941xy SPI interface

Application note for the SPI interface of the multiple half-bridge
driver family TLE941xy

DC motor HAT with TLE94112ES

Information page for DC Motor Control HAT with TLE94112ES

Library for TLE94112ES on GitHub

Software library for TLE94112ES including examples

User Manual 2 Revision 1.0
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Title

Title_continued

Introduction

Table of Contents

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

1 Introduction .................................................................................................................. 3

1.1 DC Motor Control HAT overview ............................................................................................................. 3

1.2 Key features ............................................................................................................................................. 4

1.3 Application diagram for bi-directional DC motor applications ............................................................. 5

2 DC Motor Control HAT description ................................................................................... 6

2.1 Overview .................................................................................................................................................. 6

2.2 Schematics .............................................................................................................................................. 7

2.3 Layout ...................................................................................................................................................... 8

2.4 Bill of Material of the DC Motor Control HAT .......................................................................................... 9

2.5 CS Pin Selection ..................................................................................................................................... 11

2.6 EEPROM ................................................................................................................................................. 12

2.7 Backpowering ........................................................................................................................................ 12

2.8 Stacking multiple DC Motor Control HATs ........................................................................................... 12

2.9 Pin assignment ...................................................................................................................................... 13

2.10 Pin definitions and functions ............................................................................................................... 14

3 TLE94112ES overview ................................................................................................... 15

3.1 Key features of the TLE94112ES ........................................................................................................... 15

3.2 Block diagram ........................................................................................................................................ 16

3.3 Pin assignment ...................................................................................................................................... 17

3.4 Pin definitions and functions ................................................................................................................ 18

4 Getting started ............................................................................................................. 19

5 Revision History ........................................................................................................... 20

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DC Motor HAT with TLE94112ES

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1 Introduction

1.1 DC Motor Control HAT overview

The DC Motor Control HAT with TLE94112ES makes it easy to control up to six independent or eleven
cascaded bidirectional DC motors.

The HAT can be controlled by a compatible Raspberry Pi via the SPI interface of the TLE94112ES.

The board features an Infineon TLE94112ES, a twelve-fold half-bridge driver with integrated MOSFETs.
Each half-bridge can drive peak currents up to 0.9 A and DC current in the range of 200 mA to 500 mA,
depending on the application conditions and the number of activated outputs.

The DC Motor Control HAT has an active reverse polarity protection with the p-channel MOSFET
IPD50P04P4L-11.

The HAT can power the Raspberry Pi using Infineon’s OPTIREG™ DC/DC converter TLS4125D0EPV50.

The DC Motor Control HAT can be easily connected to a Raspberry Pi via its 40-pin header.

Figure 1 DC Motor Control HAT with TLE94112ES

TLE94112ES

EEPROM

TLS4125D0EP V50

OUT2

OUT8

OUT12 OUT11

OUT10

OUT3

OUT1

OUT5

OUT7

OUT9

OUT6

OUT4

VBAT

GND

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DC Motor HAT with TLE94112ES

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1.2 Key features

The DC Motor Control HAT has the following features:

 Can be controlled by compatible Raspberry Pis:

o 1 Mod. A+, 1 Mod. B+, 2 Mod. B, 2 Mod. B v1.2, 3 Mod. A+, 3 Mod. B, 3 Mod. B+, 4 Mod. B
o Zero, Zero W

 Brushed DC Motor Control up to 0.9 A peak

o 5.5 – 18 V normal operating input voltage
o 18 – 20 V extended operating input voltage

 Control of:

o Six independent bidirectional DC motors
o Eleven cascaded bidirectional DC motors

 SPI interface for high configurability and detailed diagnosis
 Protections:

o Overtemperature
o Overcurrent
o Undervoltage
o Overvoltage

 Detailed diagnosis per MOSFET:

o Individual open load detection
o Individual overcurrent detection

 Paralleling outputs for higher current capability (up to 3.6 A)
 Motor speed control by PWM

o Three independent PWM generators
o PWM frequency: 80 Hz, 100 Hz or 200 Hz
o 8-bit resolution, 0.5% duty cycle steps
o Active freewheeling for lower power dissipation

 Multiple HATs can be stacked to control an increased number of motors
 Reverse polarity protection with IPD50P04P4L-11
 Powering of Raspberry Pi with up to 2.5A with TLS4125D0EPV50
 EEPROM containing HAT information

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1.3 Application diagram for bi-directional DC motor applications

Figure 2 Simplified application diagram with TLE94112ES driving DC motors

Refer to the TLE94112ES datasheet for more information.

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DC Motor HAT with TLE94112ES

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2 DC Motor Control HAT description

For a safe and optimized motor control design, some discrete components are needed.

Figure 4, Figure , Figure and Figure 7 show the schematics and the corresponding layout of the DC Motor
Control Shield with TLE94112ES.

2.1 Overview

Figure 3 DC Motor Control HAT connectors

TLE94112ES

The input of the TLE is connected to different capacitors. C11 is there to smooth VCC, the input voltage, C13 to
smooth VDD, the 3.3V supply, so glitches do not influence the functionality of the motor driver. C14 and C12 are
included to stabilize the input voltage.

TLS4125

The DC/DC converter, the TLS4125D0EPV50 is connected to multiple capacitors and inductors on the input and
the output side of the chip. C_IN compensates possible drops in the supply voltage. C56 is there to smooth the
input voltage, so glitches cannot disturb the functionality of the converter. L_IN combined with C52, C53, C54
and C55 create an EMI filter. This filter protects the TLS against electromagnetic interference. At the output of
the chip L_OUT with C58 and C59 are there to support the voltage conversion and C57 is responsible for
stabilizing the output voltage.

OUT2

OUT8

OUT12

OUT11

OUT10

OUT3

OUT1

OUT5

OUT7

OUT9

OUT6

OUT4

VBAT

GND

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DC Motor HAT with TLE94112ES

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2.2 Schematics

Figure 4 Schematic Motor Control HAT for Raspberry Pi with TLE94112ES (1/2)

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DC Motor HAT with TLE94112ES

For Raspberry Pi

Figure 5 Schematic DC Motor Control HAT for Raspberry Pi with TLE94112ES (2/2)

2.3 Layout

Figure 6 and Figure 7 show the layout of the DC Motor Control HAT with TLE94112ES.

Figure 6 DC Motor Control HAT – Bottom and top layers

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DC Motor HAT with TLE94112ES

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Figure 7 DC Motor Control HAT for Raspberry Pi with TLE94112ES – Layout

2.4 Bill of Material of the DC Motor Control HAT

Qty

Value

Device

Package

Parts

Description

3

PINHD-1X3

1X03

U$7, U$17,
U$19

PIN HEADER

1

PINHD-1X5

1X05

JP4

PIN HEADER

2

PINHD-2X2

2X02

JP2, JP8

PIN HEADER

1

PINHD-2X20

2X20

JP1

PIN HEADER

1

SJ

SJ

SJ1

SMD solder
JUMPER

1

100k

R-EU_R0603

R0603

R53

RESISTOR,
European symbol

1

100k/1%

R-EU_R0603

R0603

R5

RESISTOR,
European symbol

3

100n/16V

C-EUC0603

C0603

C1, C13,
C57

CAPACITOR,
European symbol

5

100n/20V

C-EUC0603

C0603

C11, C12,
C53, C55,
C56

CAPACITOR,
European symbol

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DC Motor HAT with TLE94112ES

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1

100u/20V

CPOL-EUD

PANASONIC_D

CIN1

POLARIZED
CAPACITOR,
European symbol

2

10k

R-EU_R0603

R0603

R3, R52

RESISTOR,
European symbol

1

10u/20V

C-EUC1206

C1206

C54

CAPACITOR,
European symbol

1

12VZENER

12VZENER

SOD323_ST

D21 1

1k6/1%

R-EU_R0603

R0603

R6

RESISTOR,
European symbol

2

22u/16V

C-EUC1210K

C1210K

C58, C59

CAPACITOR,
European symbol

1

2PIN-WTB­CONNECTO
R

2PIN-WTB-CONNECTOR

2PIN-WTB­CONNECTOR

U$8 4

4.7k

R-EU_R0603

R0603

R2, R25,
R35, R36

RESISTOR,
European symbol

1

4.7u/20V

C-EUC1206

C1206

C52

CAPACITOR,
European symbol

5

470

R-EU_R0603

R0603

R1, R31,
R32, R33,
R34

RESISTOR,
European symbol

1

47k

R-EU_R0603

R0603

R4

RESISTOR,
European symbol

1

47uF/20V

CPOL-EUD

PANASONIC_D

C14

POLARIZED
CAPACITOR,
European symbol

2

6PIN-WTB­CONNECTO
R

6PIN-WTB-CONNECTOR

6PIN-WTB­CONNECTOR

U$10,
WTB1 1

CAT24C32

CAT24C32

SOIC8

U$2 1

IPD50P04P4
L-11

IPD50P04P4L-11

PG-TO252-3-313

U$6 1

MBRS320T3
G - 20V
PEAK

ON_SEMICONDUCTOR_MBRS3200T3
GON_SEMICONDUCTOR_MBRS3200T
3G_0_0

ON_SEMICONDUC
TOR_MBRS3200T3
G_0

D51

ONSC-D-K1A2-2_A

1

DMG2305U
X

DMG2305UX

SOT23

U$9 1

DMMT5401

DMMT5401

SOT26

U$11 1

SM6T39A

SUPPRESSOR-SMBJ

SMBJ

D22

Suppressor diode

1

TLE94112ES

TLE94112ES

SSOP24

U$1 1

TLS4125D0
EPV50

TLS4125D0EPV50

TSDSO-14

U$3 2

TYS50402R
2N-10

TYS50402R2N-10

5040

U$4, U$5

Figure 8 DC Motor Control HAT with TLE94112ES – Bill of Material (BOM)

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DC Motor HAT with TLE94112ES

For Raspberry Pi

2.5 CS Pin Selection

The GPIO 8 (CS0) of the Raspberry Pi is used by default to control the CS (Chip Select) input of the
TLE94112ES (Figure 9).

Alternatively, GPIO 7 (CS1), GPIO 22 (CS2) or GPIO 25 (CS3) of the Raspberry Pi can be used instead to
stack multiple HATs (refer to section 2.8). In this case, the jumper on the Pinheader can be changed to the
matching CS pin (Figure ).

Figure 9 Control of CSN of TLE94112ES by GPIO 8 (CS0)

GPIO 8

controls CS

input of the

TLE94112ES

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DC Motor HAT with TLE94112ES

For Raspberry Pi

Figure 10 Control of CS of TLE94112ES by GPIO 7 (CS1)

2.6 EEPROM

The DC Motor Control HAT also contains an Electrically Erasable Programmable Read-Only Memory
(EEPROM). It allows the Raspberry Pi firmware to automatically load the necessary drivers for the HAT.
The CAT24C32 communicates via I2C on ID_SD (GPIO 27) and ID_SC (GPIO 28) with the Raspberry Pi.

If another HAT with an EEPROM is used concurrently with the DC Motor Control HAT, the address of the
EEPROM can be adjusted by closing the solder bridge marked with A+1. If the pin is left open, the I2C
address is 0x50 and if the bridge is closed it is 0x51.

2.7 Back-Powering

This HAT is able to supply the Raspberry Pi (up to 12.5 W) via its input voltage. The input voltage
(recommended 12V) is converted to 5V and maximum 2.5A by the DC/DC converter TLS4125D0EPV50 from
Infineon. The output of the chip is connected to the 5V pins of the Raspberry Pi. Consequently the power
supply unit of the Raspberry Pi is not necessarily needed. In case the Raspberry Pi is powered separately,
the TLS is protected against voltage collision by a p-channel MOSFET and a transistor array.

2.8 Stacking multiple DC Motor Control HATs

It is possible to stack multiple DC Motor Control HATs to increase the number of controlled motors.

In this configuration, the CS input of each TLE94112ES must be controlled individually by different
microcontroller GPIOs:

- The TLE94112ES of one DC Motor Control HAT is controlled by GPIO 8 (default setting, Figure ).

GPIO 7

controls CS

input of the

TLE94112ES

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DC Motor HAT with TLE94112ES

For Raspberry Pi

- The TLE94112ES of the other DC Motor Control HAT is controlled by GPIO 7 (Figure ).

The combination with different HATs is possible in general, but compatibility depends on pin usage and
bus addresses and cannot be guaranteed for every HAT.

2.9 Pin assignment

To use the DC Motor Control HAT, the necessary control signals can be applied directly at the Raspberry
Pi connectors.

Figure shows the pinout/connectors of the DC Motor Control HAT with TLE94112ES.

Figure 13 Connectors of DC Motor Control HAT

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DC Motor Shield with TLE94112EL

For Raspberry Pi

2.10 Pin definitions and functions

Pin

I/O 1

Function

GND

-

GND

Common 0V reference for all components on the DC Motor Control HAT.

VBAT

-

Battery supply (5.5 – 18V normal, 18-20V extended)

Connected to the battery voltage of the HAT

VDD - Logic supply (3.3V from Raspberry Pi)

VCC - Supply for Backpowering (5V for Raspberry)

SCLK

I

Serial Clock Input 2

MOSI

I

Master Output Slave Input 2

MISO

O

Master Input Slave Output 2

CS0 I Chip Select 0

2, Error! Bookmark not defined.

CS1 I Chip Select 1

2, Error! Bookmark not defined.

CS2 I Chip Select 2

2, Error! Bookmark not defined.

CS3

I

Chip Select 3

2, Error! Bookmark not defined.

EN

I

Enable Input

Connected to GPIO 26 of the Raspberry Pi. When set to low device goes in sleep
mode with low current consumption.

OUT1-12

O

Connectors for outputs of the half-bridges 1-12

ID_SD

I

Connected to the EEPROM

ID_SC

I

Connected to the EEPROM

1

With respect to the TLE94112ES

2

Connected to the SPI interface of the Raspberry Pi

3

Refer to chapter 2.5

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DC Motor Shield with TLE94112EL

For Raspberry Pi

3 TLE94112ES overview

The TLE94112ES is a protected twelve-fold half-bridge driver designed especially for automotive motion
control applications such as heating, ventilation and air conditioning (HVAC) flap DC motor control. It is part of
a larger family offering half-bridge drivers from three outputs to twelve outputs with direct interface or SPI
interface.

The half bridge drivers are designed to drive DC motor loads in sequential or parallel operation. Operation
modes forward, reverse, brake and high impedance are controlled from a 16-bit SPI interface. It offers diagnosis
features such as short circuit, open load, power supply failure and overtemperature detection.

In combination with its low quiescent current, this device is attractive among others for automotive
applications. The small fine pitch exposed pad package, PG-TSDSO-24, provides a good thermal performance
and reduces PCB-board space and costs.

3.1 Key features of the TLE94112ES

 Twelve half-bridge power outputs
 Optimized EMC behavior
 Very low power consumption in sleep mode
 3.3V / 5V compatible inputs with hysteresis
 All outputs with overload and short circuit protection
 Independently diagnosable outputs (overcurrent, open load)
 Open load diagnostics in ON-state for all high-side and low-side
 Outputs with selectable open load thresholds (HS1, HS2)
 16-bit Standard SPI interface with daisy chain and in-frame response capability for control and diagnosis
 Fast diagnosis with the global error flag
 PWM capable outputs for frequencies 80Hz, 100Hz and 200Hz with 8-bit duty cycle resolution
 Overtemperature pre-warning and protection
 Over- and Undervoltage lockout
 Cross-current protection
 AEC-100 Qualified

Figure 14 PG-TSDSO-24 Package

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3.2 Block diagram

Figure 15 Block diagram TLE94112ES

SCLK

EN

CSN

SDI

SDO

BIAS &

MONITOR

UNDERVOLTAGE &

OVERVOLTAGE

MONITOR

VDD

ERROR

DETECTION

VS1

CHARGE

PUMP

open load

detection

current

control

high-side

driver

low-side

driver

short to

battery

detection

temp

sensor

current
control

short to

battery

detection

high-side

driver

low-side

driver

short to

battery

detection

temp

sensor

open load
detection

current

control

short to
battery

detection

high-side

driver

low-side

driver

short to

battery

detection

temp

sensor

open load
detection

current
control

short to

battery

detection

high-side

driver

low-side

driver

short to

battery

detection

temp

sensor

current
control

short to

battery

detection

OUT 7

OUT 5

OUT 3

OUT 1

open load

detection

current

control

short to
battery

detection

low-side

driver

short to

battery

detection

temp

sensor

open load
detection

current

control

short to
battery

detection

high-side

driver

low-side

driver

short to

battery

detection

temp

sensor

current
control

short to
battery

detection

high-side

driver

low-side

driver

short to
battery

detection

temp

sensor

current

control

short to
battery

detection

high-side

driver

low-side

driver

short to

battery

detection

temp

sensor

current

control

short to
battery

detection

temp

sensor

High-side

driver

Low-side

driver

Power driver

Temp.

sensor

Power stage

LOGIC CONTROL

& LATCH

SPI INTERFACE

12-Fold Half Bridge Driver
SPI Interface

Open load

detection
Overload

detection

Overtemp.

detection

Open load

detection
Overload

detection

Overtemp.

detection

PWM

GENERATOR

GND

GND

OUT 2
OUT 4
OUT 6

OUT 12

OUT 10

OUT 8
OUT 9

OUT 11

GND GND

VS2

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DC Motor Shield with TLE94112EL

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3.3 Pin assignment

Figure 16 Pin assignment TLE94112ES (top view)

GND
OUT 2
OUT 8
VS2
SCLK
CSN
OUT 12

SDO

EN
OUT 9
OUT 6
OUT 4

GND

GND
OUT 1
OUT 5
OUT 7

SDI

VDD

OUT 11
VS1
OUT 10
OUT 3
GND

18
17
16
15
14
13

24
23
22
21
20
19

1
2
3
4
5
6
7
8
9
10
11
12

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3.4 Pin definitions and functions

Pin

Symbol

Function

1

GND

Ground. All ground pins should be externally connected together.

2

OUT 1

Power half-bridge 1

3

OUT 5

Power half-bridge 5

4

OUT 7

Power half-bridge 7

5

SDI

Serial data input with internal pull down

6

VDD

Logic supply voltage

7

SDO

Serial data output

8

EN

Enable with internal pull-down; Places device in standby mode by pulling the
EN line Low

9

OUT 9

Power half-bridge 9

10

OUT 6

Power half-bridge 6

11

OUT 4

Power half-bridge 4

12

GND

Ground. All ground pins should be externally connected together.

13

GND

Ground. All ground pins should be externally connected together.

14

OUT 3

Power half-bridge 3

15

OUT 10

Power half-bridge 10

16

VS1

Main supply voltage for power half bridges. VS1 should be externally connected to
VS2.

17

OUT11

Power half-bridge 11

18

OUT12

Power half-bridge 12

19

CSN

Chip select Not input with internal pull up

20

SCLK

Serial clock input with internal pull down

21

VS2

Main supply voltage for power half bridges. VS1 should be externally connected to
VS1.

22

OUT 8

Power half-bridge 8

23

OUT 2

Power half-bridge 2

24

GND

Ground. All ground pins should be externally connected together.

EDP

-

Exposed Die Pad; For cooling purpose only - not usable as electrical ground.
Electrical ground must be provided by pins 1, 12, 13, 24

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DC Motor Shield with TLE94112EL

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4 Getting started

For a quick and easy set up check out the Quick Start Guide available on the website and on

github.com/Infineon/multi-half-bridge.

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DC Motor Shield with TLE94112EL

For Raspberry Pi

5 Revision History

Major changes since the last revision

Page or Reference

Description of change

V1.0, 2021-03-10

First release

Published by
Infineon Technologies AG
81726 Munich, Germany

© 2021 Infineon Technologies AG.
All Rights Reserved.

Do you have a question about this
document?

Email: [e-mail]

Document reference

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given as a hint for the implementation of the product
only and shall in no event be regarded as a
description or warranty of a certain functionality,
condition or quality of the product. Before
implementation of the product, the recipient of this
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Edition 2017-02-13

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