Infineon High Side Switch Shield Manual de usuario

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

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High Side Switch Shield

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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

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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

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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 Introduction

Figure 2 Application circuit for BTS50010-1TAD

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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 board description

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

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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 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

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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.

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