Intermediate
30 min
0

Optimize system performance effortlessly using BTS70082EPAXUMA1 and STM32F407VGT6

Efficiency meets reliability: Redefine power management with our smart switch

PROFET 2 Click - 7.5A with Clicker 2 for STM32

Published Oct 12, 2023

Click board™

PROFET 2 Click - 7.5A

Development board

Clicker 2 for STM32

Compiler

NECTO Studio

MCU

STM32F407VGT6

Cultivating excellence in smart high-side switching, our solution is engineered to handle 7.5A loads. This empowers efficient system optimization and ensures reliability, even in challenging conditions, with the added benefit of ReverSave™ reverse polarity protection.

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Hardware Overview

How does it work?

PROFET 2 Click - 7.5A is based on the BTS70082EPAXUMA1, a dual-channel, smart high-side power switch with an Infineon Technologies embedded protection and diagnosis feature. The BTS70082EPAXUMA1 has a driving capability suitable for 7.5A loads and is equipped with "ReverseON" functionality, which causes the power transistor to switch on in reverse polarity. It also offers outstanding energy efficiency with reduced current consumption, state-of-art current sense accuracy, and faster switching/slew rate with no impact on EMC, making it suitable for resistive, inductive, and capacitive loads, replacement of electromechanical relays, fuses, and discrete circuits, and many more. This Click board™ uses five digital pins for direct control. The input pins IN0 and IN1, routed to the PWM and INT pins of the mikroBUS™ socket, activate the

corresponding output channels labeled VOUT0 and VOUT1. Also, the Diagnosis Enable (DEN) pin routed to the CS pin of the mikroBUS™ socket controls the diagnosis and protection circuitry. Combined with IN pins, it enables the selection of appropriate operating states: Sleep, Stand-by, and Active Mode. The BTS70082EPAXUMA1 is protected against overtemperature, overload, reverse power supply(GND and VIN are reverse supplied), and overvoltage. Overtemperature and overload protection work when the device is not in Sleep mode, while overvoltage protection works in all operation modes. For diagnosis purposes, the BTS70082EPAXUMA1 provides a combination of digital and analog signals at the AN pin of the mikroBUS™ socket. Besides, the Diagnosis Selection DSEL pin, routed to the RST pin of the mikroBUS™ socket, selects the channel on which

a diagnosis will be performed. The PROFET 2 Click supports an external power supply for the BTS70082EPAXUMA1, which can be connected to the input terminal labeled as VIN and should be within the range of 4.1V to 28V. VIN has an undervoltage detection circuit, which prevents the activation of the power output stages and diagnosis if the applied voltage is below the undervoltage threshold. A power supply indication, red LED labeled as VIN, indicates the presence of an external power supply. This Click board™ can be operated only with a 3.3V logic voltage level. The board must perform appropriate logic voltage level conversion before using MCUs with different logic levels. Also, it comes equipped with a library containing functions and an example code that can be used as a reference for further development.

PROFET 2 Click - 7.5A hardware overview image

Features overview

Development board

Clicker 2 for STM32 is a compact starter development board that brings the flexibility of add-on Click boards™ to your favorite microcontroller, making it a perfect starter kit for implementing your ideas. It comes with an onboard 32-bit ARM Cortex-M4 microcontroller, the STM32F407VGT6 from STMicroelectronics, two mikroBUS™ sockets for Click board™ connectivity, a USB connector, LED indicators, buttons, a JTAG programmer connector, and two 26-pin headers for interfacing with external electronics. Its compact design with clear and easily recognizable silkscreen markings allows you to build gadgets with unique functionalities and features quickly. Each part of the Clicker 2 for

STM32 development kit contains the components necessary for the most efficient operation of the same board. In addition to the possibility of choosing the Clicker 2 for STM32 programming method, using a USB HID mikroBootloader, an external mikroProg connector for STM32 programmer, or through an external ST-LINK V2 programmer, the Clicker 2 board also includes a clean and regulated power supply module for the development kit. It provides two ways of board-powering; through the USB Mini-B cable, where onboard voltage regulators provide the appropriate voltage levels to each component on the board or using a Li-Polymer battery via an onboard battery

connector. All communication methods that mikroBUS™ itself supports are on this board, including the well-established mikroBUS™ socket, reset button, and several user-configurable buttons and LED indicators. Clicker 2 for STM32 is an integral part of the Mikroe ecosystem, allowing you to create a new application in minutes. Natively supported by Mikroe software tools, it covers many aspects of prototyping thanks to a considerable number of different Click boards™ (over a thousand boards), the number of which is growing every day.

Clicker 2 for STM32 dimensions image

Microcontroller Overview

MCU Card / MCU

default

Architecture

ARM Cortex-M4

MCU Memory (KB)

10

Silicon Vendor

STMicroelectronics

Pin count

100

RAM (Bytes)

100

Used MCU Pins

mikroBUS™ mapper

Diagnosis Signal
PA2
AN
Diagnosis Selection
PE7
RST
Diagnosis Enable
PE8
CS
NC
NC
SCK
NC
NC
MISO
NC
NC
MOSI
Power Supply
3.3V
3.3V
Ground
GND
GND
Output Channel 1 Activation
PE9
PWM
Output Channel 0 Activation
PE10
INT
NC
NC
TX
NC
NC
RX
NC
NC
SCL
NC
NC
SDA
NC
NC
5V
Ground
GND
GND
1

Take a closer look

Schematic

PROFET 2 Click - 7.5A Schematic schematic

Step by step

Project assembly

Clicker 2 for PIC18FJ front image hardware assembly

Start by selecting your development board and Click board™. Begin with the Clicker 2 for STM32 as your development board.

Clicker 2 for PIC18FJ front image hardware assembly
GNSS2 Click front image hardware assembly
Prog-cut hardware assembly
GNSS2 Click complete accessories setup image hardware assembly
Mini B Connector Clicker 2 Access - upright/background hardware assembly
Necto image step 2 hardware assembly
Necto image step 3 hardware assembly
Necto image step 4 hardware assembly
Necto image step 5 hardware assembly
Necto image step 6 hardware assembly
Flip&Click PIC32MZ MCU step hardware assembly
Necto No Display image step 8 hardware assembly
Necto image step 9 hardware assembly
Necto image step 10 hardware assembly
Debug Image Necto Step hardware assembly

Track your results in real time

Application Output

After loading the code example, pressing the "DEBUG" button builds and programs it on the selected setup.

Application Output Step 1

After programming is completed, a header with buttons for various actions available in the IDE appears. By clicking the green "PLAY "button, we start reading the results achieved with Click board™.

Application Output Step 3

Upon completion of programming, the Application Output tab is automatically opened, where the achieved result can be read. In case of an inability to perform the Debug function, check if a proper connection between the MCU used by the setup and the CODEGRIP programmer has been established. A detailed explanation of the CODEGRIP-board connection can be found in the CODEGRIP User Manual. Please find it in the RESOURCES section.

Application Output Step 4

Software Support

Library Description

This library contains API for PROFET 2 Click driver.

Key functions:

  • profet2_set_mode - Set mode device mode for specific channel channel

  • profet2_read_an_pin_voltage - Read AN pin voltage level function

  • profet2_set_den - Set diagnostic enable pin state

Open Source

Code example

This example can be found in NECTO Studio. Feel free to download the code, or you can copy the code below.

/*!
 * @file main.c
 * @brief PROFET 2 7A Click Example.
 *
 * # Description
 * This example showcases the ability of the PROFET 2 7A Click board.
 * It configures Host MCU for communication and then enables 
 * and disables output channel. Besides that, it reads the voltage 
 * of IS pin and calculates current on output for the channel 0.
 *
 * The demo application is composed of two sections :
 *
 * ## Application Init
 * Initialization of the communication modules(ADC and UART) 
 * and additional pins for controlling the device.
 *
 * ## Application Task
 * On every iteration of the task device switches between 
 * DIAGNOSTIC and OFF mode while it reads the voltage of IS pin 
 * and with that calculates current on output for channel 0.
 * 
 * @note
 * Formula for calculating current on load: 
 * I_load = voltage(IS) x kILIS(5450) / rsens(1.2 kΩ)
 *
 * Click board won't work properly on the PIC18F97J94 MCU card.
 *
 * @author Luka Filipovic
 *
 */

#include "board.h"
#include "log.h"
#include "profet27a.h"

static profet27a_t profet27a;   /**< PROFET 2 7A Click driver object. */
static log_t logger;    /**< Logger object. */

void application_init ( void )
{
    log_cfg_t log_cfg;  /**< Logger config object. */
    profet27a_cfg_t profet27a_cfg;  /**< Click config object. */

    /** 
     * Logger initialization.
     * Default baud rate: 115200
     * Default log level: LOG_LEVEL_DEBUG
     * @note If USB_UART_RX and USB_UART_TX 
     * are defined as HAL_PIN_NC, you will 
     * need to define them manually for log to work. 
     * See @b LOG_MAP_USB_UART macro definition for detailed explanation.
     */
    LOG_MAP_USB_UART( log_cfg );
    log_init( &logger, &log_cfg );
    log_info( &logger, " Application Init " );

    // Click initialization.
    profet27a_cfg_setup( &profet27a_cfg );
    PROFET27A_MAP_MIKROBUS( profet27a_cfg, MIKROBUS_1 );
    if ( ADC_ERROR == profet27a_init( &profet27a, &profet27a_cfg ) )
    {
        log_error( &logger, " Application Init Error. " );
        log_info( &logger, " Please, run program again... " );

        for ( ; ; );
    }
    profet27a_default_cfg ( &profet27a );
    log_info( &logger, " Application Task " );
    Delay_ms( 1000 );
}

void application_task ( void ) 
{
    static uint8_t mode = PROFET27A_DIAGNOSTIC_ON;
    float profet27a_an_voltage = 0;
    
    err_t error_val = profet27a_set_mode( &profet27a, PROFET27A_CHANNEL_0, mode );
    
    if ( error_val )
    {
        log_error( &logger, "Channe/Mode" );
    }
    
    if ( PROFET27A_DIAGNOSTIC_ON == profet27a.mode )
    {
        mode = PROFET27A_MODE_OFF;
        log_printf( &logger, " > Output ON Channel %u in diagnostic mode\r\n", ( uint16_t )profet27a.channel );
        Delay_ms( 1000 );
    }
    else
    {
        mode = PROFET27A_DIAGNOSTIC_ON;
        log_printf( &logger, " > Output OFF\r\n" );
    }

    if ( profet27a_read_an_pin_voltage ( &profet27a, &profet27a_an_voltage ) != ADC_ERROR )
    {
        log_printf( &logger, " > IS Voltage \t~ %.3f[V]\r\n", profet27a_an_voltage );
        
        float current = profet27a_an_voltage * profet27a.kilis / profet27a.rsens;
        log_printf( &logger, " > OUT Current \t~ %.3f[A]\r\n", current );
    }
    
    log_printf( &logger, "*******************************************\r\n" );
    
    Delay_ms( 2000 );
}

void main ( void ) 
{
    application_init( );

    for ( ; ; ) 
    {
        application_task( );
    }
}

// ------------------------------------------------------------------------ END

Additional Support

Resources