Infineon High Side Switch Shield User manual

User Manual Please read the Important Notice and Warnings at the end of this document <Revision 1.0>
www.infineon.com 2017-05-16
User Manual
High Side Switch Shield
with BTS50010-1TAD for Arduino
About this document
Scope and purpose
This document describes how to use the High Side Switch Shield with BTS50010-1TAD for Arduino.
Intended audience
Engineers, hobbyists and students who want to add powerful High Side Switches to Arduino projects.
Related information
Table 1 Supplementary links and document references
Reference Description
BTS50010-1TAD Data Sheet Product page which contains reference information for
the BTS50010-1TAD
Arduino Home Page All information on Arduino
Arduino Uno Product Page Arduino Uno R3 description
DAVE™Development Platform All details on DAVE™IDE
XMC1100 Boot Kit Product page which contains reference information for
the XMC1100 Boot Kit
Shields for Arduino by Infineon All details on Infineon’s shields for Arduino
XMC Homepage All information about the XMCTM microcontroller family

User Manual 2 <Revision 1.0>
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High Side Switch Shield
with BTS50010-1TAD for Arduino
High Side Switch Shield Information
Table of Contents
About this document....................................................................................................................... 1
Scope and purpose......................................................................................................................................................1
Intended audience.......................................................................................................................................................1
Related information.....................................................................................................................................................1
Table of Contents ........................................................................................................................... 2
1 High Side Switch Shield Introduction ............................................................................... 3
1.1 High Side Switch Shield overview ..........................................................................................................3
1.2 Key features.............................................................................................................................................4
1.3 Application diagram of the BTS50010-1TAD ..........................................................................................4
2 High Side Switch Shield board description........................................................................ 6
2.1 Schematics ..............................................................................................................................................6
2.2 Layout ......................................................................................................................................................8
2.3 Important design and layout rules .......................................................................................................10
2.4 Pin assignment......................................................................................................................................10
2.5 Pin definitions and functions................................................................................................................11
3 BTS50010-1TAD overview ..............................................................................................12
3.1 Key features of the BTS50010-1TAD .....................................................................................................12
3.2 Block diagram........................................................................................................................................13
3.3 Pin assignment......................................................................................................................................14
3.4 Pin definitions and functions BTS50010-1TAD.....................................................................................14
4 Getting started .............................................................................................................15
4.1 Target applications ...............................................................................................................................15
4.2 Typical target application.....................................................................................................................15
4.2.1 Getting started: Shield + Arduino or XMC1100 Boot Kit..................................................................15
4.2.2 Getting started: Software for the XMC1100 Boot Kit.......................................................................16
4.2.3 Getting started: Software for Arduino Uno .....................................................................................17
4.2.4 Software functionality with XMC 1100 Boot Kit ..............................................................................17
4.3 Getting started: Shield BTS50010-1TAD in stand alone mode ............................................................17

User Manual 3 <Revision 1.0>
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High Side Switch Shield
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High Side Switch Shield Introduction
1High Side Switch Shield Introduction
This chapter will provide a brief introduction of the High Side Switch Shield.
1.1 High Side Switch Shield overview
The High Side Switch Shield adds powerful High Side Switches to Arduino projects. The shield can be controlled
with the general logic IO-Ports of a microcontroller. For example either an Arduino Uno R3 or the XMC1100 Boot
Kit from Infineon can be used as the master. But the High Side Switch Shield can be also used in stand alone
mode without any microcontroller board. Since the input pin IN can be connected directly to VS (Battery
voltage) the first stand alone tests with this High Side Switch Shield is very easy.
On board of the High Side Switch Shield is a self-protected BTS50010-1TAD mounted. The BTS50010-1TAD is an
N-channel High Side MOSFET with an integrated driver IC in one package from Infineon Technologies. In
addition to the driver, several security features have been integrated, like over-temperature-, short circuit- and
over voltage protection. With the enhanced current sense pin IS it is possible to give a fault feedback after an
overtemperature shut down, short to circuit or open load. For more information please see the datasheet of the
BTS50010-1TAD.
The BTS50010-1TAD is easy to control by applying logic level signals to the IN pin. For example when applying a
PWM to the IN pin, a motor can be controlled with the duty cycle of the PWM.
Figure 1 High Side Switch Shield photo

User Manual 4 <Revision 1.0>
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High Side Switch Shield
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High Side Switch Shield Introduction
1.2 Key features
The High Side Switch Shield has the following features:
An Arduino Uno R3, XMC1100 Boot Kit, or similar board connected to the shield can control the three High
Side Switches via general IO pins.
Able to switch all kind of loads like resistive, inductive and capacitive, limited by clamping energy
High Side Switches BTS50010-1TAD
oInput voltage : 3.3 to VS
oOperating voltage range VS(OP): 8 to 18V
oExtended battery voltage VS(DYN): 3.2 to 28V
oMaximum ON-state resistance (TJ=150°C) RDS(ON): 2mΩ
oMinimum nominal load current: 40 A
oMinimum current limitation: 150 A
Latched status signal after short circuit or over temperature detection
Active clamp over voltage protection of the output (min. 28 V)
Enhanced short circuit protection
Capable of PWM for low frequencies
Driver circuit with logic level inputs
Diagnosis function
Protection e.g. against overtemperature, overcurrent and overvoltage
Communication with the environment via five LEDs and up to one push buttons
Easy handling via push buttons, interrupt related handling is possible
1.3 Application diagram of the BTS50010-1TAD
In Figure 2 an application example of the BTS50010-1TAD is shown. This gives the clear information how to use
the BTS50010-1TAD with a microcontroller. More details to the BTS50010-1TAD are given in chapter 3 or in the
data sheet.

User Manual 5 <Revision 1.0>
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High Side Switch Shield
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High Side Switch Shield Introduction
Figure 2 Application circuit for BTS50010-1TAD

User Manual 6 <Revision 1.0>
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High Side Switch Shield
with BTS50010-1TAD for Arduino
High Side Switch Shield board description
2High Side Switch Shield board description
For a safe and sufficient High Side Switch design, discrete components are needed. Some of them must be
dedicated to the application and some to the BTS50010-1TAD.
Figure 3, Figure 4 and Figure 5 show the schematics plus the corresponding layout of the High Side Switch
Shield.
2.1 Schematics
In Figure 3 show the schematics and their corresponding layout of the High Side Switch Shield. The schematics
are based on the application circuit in the BTS50010-1TAD Data Sheet.

User Manual 7 <Revision 1.0>
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High Side Switch Shield
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High Side Switch Shield board description
Figure 3 Schematics High Side Switch Shield for Arduino with BTS50010-1TAD

User Manual 8 <Revision 1.0>
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High Side Switch Shield
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High Side Switch Shield board description
2.2 Layout
Figure 4 High Side Switch Shield – Bottom and top layers
Figure 5 High Side Switch Shield – Complete layout

User Manual 9 <Revision 1.0>
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High Side Switch Shield
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High Side Switch Shield board description
Table 2 Bill of Material
Part Value Device Package Description
C1, C3 100nF C C0805 CAPACITOR
C2 68nF C C0805 CAPACITOR
C4 22µ / 20V CPOL-EUSMCB SMC_B POLARIZED CAPACITOR
C5 100µ / 50V CPOL-EUSMCB SMC_B POLARIZED CAPACITOR
C10 220pF C C0805 CAPACITOR
C11 10nF C C0805 CAPACITOR
D1 28V TVS-DIODE-DO-214B DO-214AB Diode
D2 5.1V Z-DIODESOD123 SOD123 zener diode
IC1 TLC274CD 4AMP_P4+11D SO14 OP AMP
IC2 TLS805B1SJ TLS805B1SJ SOIC8 VOLTAGE REGULATOR
IC4
BTS50010
-
1TAD BTS50010-1TAD PG-TO-263-7-10 High Side Switch
JP1 MESSBÜGEL508 MESSBÜGEL508 MESSBÜGEL508 mechanical Bridge
JP3 JP1E JP1 JUMPER
LED2, LED3, LED5,
LED_VCC GREEN LEDCHIPLED_1206 CHIPLED_1206 LED
LED6 RED LEDCHIPLED_1206 CHIPLED_1206 LED
R1 47K R R0805 RESISTOR
R2 10K R R0805 RESISTOR
R3 5kOhm R R0805 Resistor
R6, R7, R26, R27 1.5kOhm R R0805 Resistor
R9, R13, R18 10kOhm R R0805 Resistor
R10, R24, R25 5K R R0805 Resistor
R4, R12 15K R R0805 Resistor
R15, R22 1M R R0805 Resistor
R5, R17 4.7k R R0805 Resistor
R19, R23 1K R R0805 Resistor
R21 0R R R0805 Resistor
S1 10-XX B3F-10XX OMRON SWITCH
SV1 MA06-1 MA06-1 PIN HEADER
SV2 MA08-1 MA08-1 PIN HEADER
SV3 MA10-1 MA10-1 PIN HEADER
SV4 MA08-1 MA08-1 PIN HEADER
TP_5V LSP13 LSP13 LSP13 SOLDER PAD drill 1.3 mm
TP_COMP1 LSP13 LSP13 LSP13 SOLDER PAD drill 1.3 mm
TP_COMP2 LSP13 LSP13 LSP13 SOLDER PAD drill 1.3 mm
TP_IN4 LSP13 LSP13 LSP13 SOLDER PAD drill 1.3 mm
TP_IS LSP13 LSP13 LSP13 SOLDER PAD drill 1.3 mm
TP_OUT4 LSP13 LSP13 LSP13 SOLDER PAD drill 1.3 mm
TP_U(IS) LSP13 LSP13 LSP13 SOLDER PAD drill 1.3 mm
TP_U1(IS) LSP13 LSP13 LSP13 SOLDER PAD drill 1.3 mm
TP_VCC LSP13 LSP13 LSP13 SOLDER PAD drill 1.3 mm
TP_VREF LSP13 LSP13 LSP13 SOLDER PAD drill 1.3 mm

User Manual 10 <Revision 1.0>
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High Side Switch Shield
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High Side Switch Shield board description
2.3 Important design and layout rules
Following components are implemented in the shield.
R9: This resistor is needed as pull-up resistor for the push-button S2. The resistor R9 is directly connected to
the driving voltage for the processor (5V), push button is low active.
IC2, R4, R5: The IC2 (TLS805B1SJ) is an automotive qualified voltage regulator. With the direct connected R4
and R5 an stable output voltage (5V for this board) is adjusted and will feed the comperator unit IC1. This 5V
can be measured at testpoint TP_5V.
IC1, LED3, LED4: IC1 (TLC274CD) includes four independend operational amplifiers and is used as
comperator and buffer. This unit shell gives some optical feedback via LED3 and LED4 in stand alone mode.
This means, no microcontroller will be used. IC1A buffers the sense voltage which will be provides by the
sense current from the BTS50010-1TAD and R23. This voltage can be measured at TP_U1(IS). IC1B provides
the reference voltage (TP_VREF) for the comperators IC1C and IC1D, which compares now VS (IS*R23) aginst
VREF. In case of normal load, the green LED (LED3) will work, in case of fault conditions the red LED (LED4)
will work. Via JP3 the refence voltage (VREF) can be adjusted, just connect a corresponding calculated
resistor!
R7, R6, R27, R26, R3: These resistors are used to provide the LEDs with the desired current.
LED1: Indicates the connection of battery voltage
S2: On-board push button, low active.
R1, R2, R17: The resistors are used to protect the microcontroller. Input currents get reduced. R1 and R2
working as voltage divider. In case of the use of a controller it is possible to measure VBAT till to the maximum
value of 28V. The z-diode D2 will protect the input against high voltage spikes.
IC4: IC4 (BTS50010-1TAD) is the protected High Side Switch.
2.4 Pin assignment
As mentioned before the High Side Switch Shield can be operated in two ways, in the stand alone mode (Shield
only) or together with an Arduino controller board like the XMC1100 Boot Kit. All necessary control and sense
signals can be applied directly at the ArduinoTM connectors. The pin IN from BTS50010-1TAD uses a comparator
with hysteresis. The switching ON / OFF takes place in a defined region, set by the threshold VIN(L) Max (0.8V) and
VIN(H) Min.(2.2V), therefore the pin IN can be driven by any other microcontroller or with logic level signals. Since
the maximum input voltage at the pin IN can be VBAT, a very flexible usage of the Shield is possible. Besides the
supply voltage VBAT has to be provided to the VBAT connector. Figure 6 shows the pinout/connectors of the High
Side Switch Shield.
The way how to connect the board to the load and / or battery voltage please read the chapter 4.1 and chapter
4.x in “Getting started” for the modes with controller board and without.

User Manual 11 <Revision 1.0>
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High Side Switch Shield
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High Side Switch Shield board description
Figure 6 High Side Switch Shield connectors
2.5 Pin definitions and functions
The pin headers are connected as described in table 3.
Table 3 Pin defintion
PIN Symbol
Input /
Output Function
(processor)
GND GND Ground
P2.6 S2 I Handling of user input
External Key can be connected, low active
P2.9 IS I ADC-input
Measuring of IS
P2.10 TP_5V I ADC-input
Measuring of avaibility of 5V
P2.2 VBAT I ADC-input
Measuring of VBAT via voltage divider
P2.0 LED1 O Visualization, freely definable per software
P0.8 LED2 O Visualization, freely definable per software
P0.3 IN - BTS50010 O Output of processor connected to input of
BTS50010-1TAD to switch on / off
P0.2 TP_COMP1 I Input to check state of comperator 1, can
be measured at tespoint TP_COMP1

User Manual 12 <Revision 1.0>
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High Side Switch Shield
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BTS50010
-
1TAD overview
3BTS50010-1TAD overview
The BTS50010-1TAD used in the High Side Switch Shield is a 1.0 mΩ high integrated single channel High Side
switch which can be used in many applications. The power transistor itself is a built in N-channel power
MOSFET. The whole device is monolithically integrated. This means that the power MOSFET, the driver and
protection blocks are integrated in one package. Interfacing to a microcontroller is made easy by the integrated
driver IC, which features logic level inputs, diagnosis and protection against overtemperature, undervoltage,
overcurrent and short circuit.
The BTS50010-1TAD is automotive qualified and is optimized for 12V automotive and industrial applications.
3.1 Key features of the BTS50010-1TAD
Single channel device
Low Stand-by current
Very low power DMOS leachage current in OFF state
Drain-Source Resistance (RDS(ON)) of max. 2 mΩ @ 150 °C (typ. 1.0 mΩ @ 25 °C)
Capable of PWM for low frequencies
3.3V and VSlevel compatible input
Very low leakage current at OUT pin
Minimum nominal load current of 40A
Minimum current limitation level of 150 A min.
Diagnosis function (Short circuit to battery, overtemperature detection)
Latched behavior after overtemperature shut down or overtemperature detection
Undervoltage shut down
Enhanced short circuit protection
Operation up to 28 V
Green Product (RoHS compliant)
AEC Qualified in PG-TO-263-7-10 package

Figure 7 PG-TO263-7-10

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High Side Switch Shield
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BTS50010
-
1TAD overview
3.2 Block diagram
The BTS50010-1TAD is able to switch resistive, inductive and capacitive loads. The limiting factors are the
clamping energy (EAS) and the maximum current and voltage capabilities
The device offers dedicated ESD protection on the IN, VDD and IS pin, which refer to the Ground
The BTS50010-1TAD provides Infineon® SMART CLAMPING functionality, which suppresses excessive
transient overvoltage by actively clamping the overvoltage across the power stage and the load.
Figure 8 Block diagram BTS50010-1TAD
In case of overload, high inrush current or short circuit to ground, the BTS50010-1TAD offers several
protection mechanisms. Any protective switch OFF latches the output. To restart the device, it is necessary
to set IN = LOW for t>tIN(RESETDELAY), please see datasheet. This behavior is known as latch behavior.
For temperature limitation the device has an built in absolute (TJ(TRIP)) temperature sensor. In case of over
temperature the device will switch OFF to prevent destruction. The device restarts when the IN pin is set to
low for t > tIN(RESETDELAY) and the temperature has decreased below TJ(TRIP) - ΔTJ(TRIP).
The device provides an enhanced current signal called ISat pin IS. As long as no “hard” failure mode occurs
(short circuit to GND / overcurrent / overtemperature) and the condition VIS ≤ VOUT – 5V is fulfilled, a
proportional signal in relation to the load current is provided. The accuracy of the sense current depends on
temperature and load current. In case of failure, a fixed IIS(FAULT) is provided. In order to enable the fault
current reporting, the condition VS- VOUT > 2 V must be fulfilled. In order to get the fault current in the
specified range, the condition VS- VIS ≥ 5 V must be fulfilled.
For more detailed information we refer to the data sheet of BTS50010-1TAD!

User Manual 14 <Revision 1.0>
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High Side Switch Shield
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BTS50010
-
1TAD overview
3.3 Pin assignment
Figure 9 Pin assignment BTS50010-1TAD (top view)
3.4 Pin definitions and functions BTS50010-1TAD
Table 4
Pin Symbol I/O Function
1 GND Signal Ground
2 IN I Input, Digital signal to switch ON channel (“high” active)
3 IS O Sense, Analog / Digital signal for diagnosis, if not used: left open
4, Cooling tab VSSupply Voltage, Battery voltage
5, 6, 7 OUT O Output, Protected high side power output channel

User Manual 15 <Revision 1.0>
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High Side Switch Shield
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Getting started
4Getting started
4.1 Target applications
The applications targeted by the High Side Switch Shield are resistive, inductive and capacitive loads in DC or in
PWM with very low frequencies. One BTS50010-1TAD is used on the shield and is capable of driving a nominal
load current of 40 A (typ.) DC.
4.2 Typical target application
The most suitable applications for the BTS50010-1TAD are high current loads, such like heating sytems, main
switch for power distribution or for example start-stop power supply switch.
Common resistive loads can be heating elements, such as PTC auxiliary heater or glow plugs for example.
The shield can also be used to charge capacitors or drive loads that behave in a similar way such as bulbs. For
these loads the device is able to handle the high inrush current.
4.2.1 Getting started: Shield + Arduino or XMC1100 Boot Kit
Choose an appropriate load, for example a valve or glow plug
Connect the High Side Switch Shield for example to the Arduino Uno R3 or the XMC 1100 Boot Kit
To supply the Arduino/XMC1100 Boot Kit, connect the board with the proper USB cable. The logic of the
shield is directly supplied by the Arduino/ XMC1100 Boot Kit
Program the controller board with the High Side Switch software (see 4.2.2)
Connect the GND of shield’s with the ground of your power supply. Connect the output of the terminal
(VOUT) with your load and the load to the GND of your power supply. Now connect the plus pole of the
power supply to VBAT of the shield. Your power supply should not exceed 18V for nominal operation.
Please see also figure 10 at next page.
Turn on the power

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High Side Switch Shield
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Getting started
Figure 10 Example circuit of BTS50010-1TAD shield and XMC1100 Boot Kit
4.2.2 Getting started: Software for the XMC1100 Boot Kit
In order to use the High Side Switch Shield in combination with the XMC1100 Boot Kit following steps have to
be taken first:
Download the latest version of DAVE™from www.infineon.com/dave
Get the sample application software at www.infineon.com/shields-for-arduino
Open DAVE™and navigate via the toolbar to File > Import > Infineon > DAVE projects and pick the
sample application as an archive file
After the project was imported successfully, generate the code and build the projects with the
corresponding buttons in the toolbar of DAVETM
Conntect the XMC1100 Boot Kit with your computer via USB
To run the software click on the debug button and than on the run button

User Manual 17 <Revision 1.0>
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High Side Switch Shield
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Getting started
4.2.3 Getting started: Software for Arduino Uno
To use the High Side Switch Shield with an Arduino Uno following steps need to be done first:
Download the latest Arduino IDE from https://www.arduino.cc/en/Main/Software
Get the sample application software at www.infineon.com/shields-for-arduino
Open the sample application software
Adjust the parameters for the PWM in the software code
Connect your Arduino Uno with the computer via USB
To run the software on the Arduino, upload the software with the corresponding button in the toolbar
of the IDE
4.2.4 Software functionality with XMC 1100 Boot Kit
The installed example software provides an easy to use functionality just to show how to use the shield and the
XMC1100.
The push-button S2 turns the corresponding BTS50010-1TAD on or off. For the switch function we use an
interrupt from XMC1100.
4.3 Getting started: Shield BTS50010-1TAD in stand alone mode
The use of the shield BTS50010-1TAD in stand alone mode (without Arduino Uno R3 or the XMC 1100 Boot Kit) is
shown in Figure 11.
Choose an appropriate load, for example a valve or glow plug
Connect the High Side Switch Shield to the load and an external switch corresponding to the example
circuit given in Figure 11
Turn on Power, power supply should not exceed 18V for nominal operation

User Manual 18 <Revision 1.0>
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High Side Switch Shield
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Getting started
Figure 11 Example circuit of BTS50010-1TAD shield in stand alone mode

User Manual 19 <Revision 1.0>
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High Side Switch Shield
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Getting started
Revision History
Major changes since the last revision
Revision Description of change
V1.0 2017-05-01 Initial release

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Edition 2017-05-16
User Manual
Published by
Infineon Technologies AG
81726 Munich, Germany
© 2017 Infineon Technologies AG.
All Rights Reserved.
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IMPORTANT NOTICE
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is 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
application note must verify any function and other
technical information given herein in the real
application. Infineon Technologies hereby
disclaims any and all warranties and liabilities of
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information given in this application note.
The data contained in this document is exclusively
intended for technically trained staff. It is the
responsibility of customer’s technical departments
to evaluate the suitability of the product for the
intended application and the completeness of the
product information given in this document with
respect to such application.
For further information on the product, technology,
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