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

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High Side Switch Shield
with BTS50010-1TAD for Arduino
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

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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.

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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.

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High Side Switch Shield
with BTS50010-1TAD for Arduino
High Side Switch Shield board description
Figure 3 Schematics High Side Switch Shield for Arduino with BTS50010-1TAD

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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

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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
with BTS50010-1TAD for Arduino
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.