Cruise into smooth power control with BTS7080-2EP and TM4C129ENCZAD
Empower your systems with smart high-side switching excellence, even in challenging conditions
Published Oct 09, 2023
Click board™
PROFET 2 Click - 3A
Dev. board
Fusion for Tiva v8
Compiler
NECTO Studio
MCU
TM4C129ENCZAD
Embark on a journey of effortless power management with our smart high-side switch, designed to handle 3A loads and high inrush currents, while also featuring innovative ReverSave™ technology for enhanced safety and precision control
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Hardware Overview
How does it work?
PROFET 2 Click - 3A is based on the BTS7080-2EP, a dual-channel, smart high-side power switch with embedded protection and diagnosis features from Infineon Technologies. The BTS7080-2EP has a driving capability suitable for 3A 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 BTS7080-2EP 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 BTS7080-2EP combines 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 BTS7080-2EP, 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.
Features overview
Development board
Fusion for TIVA v8 is a development board specially designed for the needs of rapid development of embedded applications. It supports a wide range of microcontrollers, such as different 32-bit ARM® Cortex®-M based MCUs from Texas Instruments, regardless of their number of pins, and a broad set of unique functions, such as the first-ever embedded debugger/programmer over a WiFi network. The development board is well organized and designed so that the end-user has all the necessary elements, such as switches, buttons, indicators, connectors, and others, in one place. Thanks to innovative manufacturing technology, Fusion for TIVA v8 provides a fluid and immersive working experience, allowing access
anywhere and under any circumstances at any time. Each part of the Fusion for TIVA v8 development board contains the components necessary for the most efficient operation of the same board. An advanced integrated CODEGRIP programmer/debugger module offers many valuable programming/debugging options, including support for JTAG, SWD, and SWO Trace (Single Wire Output)), and seamless integration with the Mikroe software environment. Besides, it also includes a clean and regulated power supply module for the development board. It can use a wide range of external power sources, including a battery, an external 12V power supply, and a power source via the USB Type-C (USB-C) connector.
Communication options such as USB-UART, USB HOST/DEVICE, CAN (on the MCU card, if supported), and Ethernet is also included. In addition, it also has the well-established mikroBUS™ standard, a standardized socket for the MCU card (SiBRAIN standard), and two display options for the TFT board line of products and character-based LCD. Fusion for TIVA v8 is an integral part of the Mikroe ecosystem for rapid development. Natively supported by Mikroe software tools, it covers many aspects of prototyping and development thanks to a considerable number of different Click boards™ (over a thousand boards), the number of which is growing every day.
Microcontroller Overview
MCU Card / MCU
Type
8th Generation
Architecture
ARM Cortex-M4
MCU Memory (KB)
1024
Silicon Vendor
Texas Instruments
Pin count
212
RAM (Bytes)
262144
Used MCU Pins
mikroBUS™ mapper
Take a closer look
Click board™ Schematic
Step by step
Project assembly
Start by selecting your development board and Click board™. Begin with the Fusion for Tiva v8 as your development board.
Track your results in real time
Application Output
1. Application Output - In Debug mode, the 'Application Output' window enables real-time data monitoring, offering direct insight into execution results. Ensure proper data display by configuring the environment correctly using the provided tutorial.
2. UART Terminal - Use the UART Terminal to monitor data transmission via a USB to UART converter, allowing direct communication between the Click board™ and your development system. Configure the baud rate and other serial settings according to your project's requirements to ensure proper functionality. For step-by-step setup instructions, refer to the provided tutorial.
3. Plot Output - The Plot feature offers a powerful way to visualize real-time sensor data, enabling trend analysis, debugging, and comparison of multiple data points. To set it up correctly, follow the provided tutorial, which includes a step-by-step example of using the Plot feature to display Click board™ readings. To use the Plot feature in your code, use the function: plot(*insert_graph_name*, variable_name);. This is a general format, and it is up to the user to replace 'insert_graph_name' with the actual graph name and 'variable_name' with the parameter to be displayed.
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 channelprofet2_read_an_pin_voltage- Read AN pin voltage level functionprofet2_set_den- Set diagnostic enable pin state
Open Source
Code example
The complete application code and a ready-to-use project are available through the NECTO Studio Package Manager for direct installation in the NECTO Studio. The application code can also be found on the MIKROE GitHub account.
/*!
* @file main.c
* @brief PROFET 2 3A Click Example.
*
* # Description
* This example showcases the ability of the PROFET 2 3A 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(1800) / 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 "profet23a.h"
static profet23a_t profet23a; /**< PROFET 2 3A Click driver object. */
static log_t logger; /**< Logger object. */
void application_init ( void )
{
log_cfg_t log_cfg; /**< Logger config object. */
profet23a_cfg_t profet23a_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.
profet23a_cfg_setup( &profet23a_cfg );
PROFET23A_MAP_MIKROBUS( profet23a_cfg, MIKROBUS_1 );
if ( ADC_ERROR == profet23a_init( &profet23a, &profet23a_cfg ) )
{
log_error( &logger, " Application Init Error. " );
log_info( &logger, " Please, run program again... " );
for ( ; ; );
}
profet23a_default_cfg ( &profet23a );
log_info( &logger, " Application Task " );
Delay_ms( 1000 );
}
void application_task ( void )
{
static uint8_t mode = PROFET23A_DIAGNOSTIC_ON;
float profet23a_an_voltage = 0;
err_t error_val = profet23a_set_mode( &profet23a, PROFET23A_CHANNEL_0, mode );
if ( error_val )
{
log_error( &logger, "Channe/Mode" );
}
if ( PROFET23A_DIAGNOSTIC_ON == profet23a.mode )
{
mode = PROFET23A_MODE_OFF;
log_printf( &logger, " > Output ON Channel %u in diagnostic mode\r\n", ( uint16_t )profet23a.channel );
Delay_ms( 1000 );
}
else
{
mode = PROFET23A_DIAGNOSTIC_ON;
log_printf( &logger, " > Output OFF\r\n" );
}
if ( profet23a_read_an_pin_voltage ( &profet23a, &profet23a_an_voltage ) != ADC_ERROR )
{
log_printf( &logger, " > IS Voltage \t~ %.3f[V]\r\n", profet23a_an_voltage );
float current = profet23a_an_voltage * profet23a.kilis / profet23a.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
