SolidSwitch 6 Click

SolidSwitch 6 Click is a compact add-on board for reliable load management in automotive power distribution systems. This board features the VNF1048F, a high-side switch controller with intelligent e-fuse protection from STMicroelectronics. This board supports an input voltage range of 6V to 48V, controls external MOSFET, and offers essential protection features such as overcurrent, under-voltage, and thermal shutdown, with diagnostic feedback via SPI. It also includes an NTC resistor for monitoring MOSFET temperature and operates with either 3.3V or 5V logic levels.

Click Product page

Click library

• Author : Nenad Filipovic
• Date : Feb 2024.
• Type : SPI type

Software Support

We provide a library for the SolidSwitch 6 Click as well as a demo application (example), developed using MikroElektronika compilers. The demo can run on all the main MikroElektronika development boards.

Package can be downloaded/installed directly from NECTO Studio Package Manager(recommended way), downloaded from our LibStock™ or found on Mikroe github account.

Library Description

This library contains API for SolidSwitch 6 Click driver.

Standard key functions :

• solidswitch6_cfg_setup Config Object Initialization function.

  void solidswitch6_cfg_setup ( solidswitch6_cfg_t *cfg );

• solidswitch6_init Initialization function.

  err_t solidswitch6_init ( solidswitch6_t *ctx, solidswitch6_cfg_t *cfg );

• solidswitch6_default_cfg Click Default Configuration function.

  err_t solidswitch6_default_cfg ( solidswitch6_t *ctx );

Example key functions :

• solidswitch6_get_vout This function reads the raw ADC value and converts it to a proportional voltage level using the SPI serial interface.

  err_t solidswitch6_get_vout ( solidswitch6_t *ctx, float *vout );

• solidswitch6_set_control This function writes control registers to configure the switch controller using the SPI serial interface.

  err_t solidswitch6_set_control ( solidswitch6_t *ctx, solidswitch6_ctrl_t ctrl );

• solidswitch6_get_device_temp This function reads the raw ADC value and converts it to device temperature in degrees Celsius using the SPI serial interface.

  err_t solidswitch6_get_device_temp ( solidswitch6_t *ctx, float *tj );

Example Description

This library contains API for the SolidSwitch 6 Click driver and demonstrate uses of the high-side switch controller with intelligent fuse protection.

The demo application is composed of two sections :

Application Init

The initialization of the SPI module and log UART. After driver initialization, the app sets the default configuration.

void application_init ( void )
{
    log_cfg_t log_cfg;  /**< Logger config object. */
    solidswitch6_cfg_t solidswitch6_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.
    solidswitch6_cfg_setup( &solidswitch6_cfg );
    SOLIDSWITCH6_MAP_MIKROBUS( solidswitch6_cfg, MIKROBUS_1 );
    if ( SPI_MASTER_ERROR == solidswitch6_init( &solidswitch6, &solidswitch6_cfg ) )
    {
        log_error( &logger, " Communication init." );
        for ( ; ; );
    }

    if ( SOLIDSWITCH6_ERROR == solidswitch6_default_cfg ( &solidswitch6 ) )
    {
        log_error( &logger, " Default configuration." );
        for ( ; ; );
    }

    log_info( &logger, " Application Task " );
    log_printf( &logger, " ______________________\r\n" );
    Delay_ms ( 100 );
}

Application Task

The demo application reads and displays the device temperature and voltage level of the current sense amplifier, NTC, and output voltage measurement. Results are being sent to the UART Terminal, where you can track their changes.

void application_task ( void )
{
    float app_buf = 0;
    if ( SOLIDSWITCH6_OK == solidswitch6_get_device_temp( &solidswitch6, &app_buf ) )
    {
        log_printf( &logger, " Temperature: %.2f [degC]\r\n", app_buf );
        Delay_ms ( 100 );
    }

    if ( SOLIDSWITCH6_OK == solidswitch6_get_vntc( &solidswitch6, &app_buf ) )
    {
        log_printf( &logger, " NTC: %.2f V\r\n", app_buf );
        Delay_ms ( 100 );
    }

    if ( SOLIDSWITCH6_OK == solidswitch6_get_vout( &solidswitch6, &app_buf ) )
    {
        log_printf( &logger, " Vout: %.2f V\r\n", app_buf );
        Delay_ms ( 100 );
    }

    if ( SOLIDSWITCH6_OK == solidswitch6_get_vds( &solidswitch6, &app_buf ) )
    {
        log_printf( &logger, " VDS: %.2f V\r\n", app_buf );
        Delay_ms ( 100 );
    }

    log_printf( &logger, " ______________________\r\n" );
    Delay_ms ( 1000 );
}

The full application code, and ready to use projects can be installed directly from NECTO Studio Package Manager(recommended way), downloaded from our LibStock™ or found on Mikroe github account.

Other Mikroe Libraries used in the example:

• MikroSDK.Board
• MikroSDK.Log
• Click.SolidSwitch6

Additional notes and informations

Depending on the development board you are using, you may need USB UART Click, USB UART 2 Click or RS232 Click to connect to your PC, for development systems with no UART to USB interface available on the board. UART terminal is available in all MikroElektronika compilers.