Experience power precision like never before as voltages bow down to the prowess of our step-down DC/DC converter. Unleash a new era of efficiency in your electronic endeavors.
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Hardware Overview
How does it work?
Smart Buck 3 Click is based on the TPS62366A, a processor supply with an I2C compatible interface and a remote sense from Texas Instruments. Its dedicated inputs over the VIN terminal allow fast voltage transition while introducing input under voltage detection and lockout. In addition, it features over-temperature protection, a soft start, excellent DC output voltage regulation, and other robust operation/protection features. It offers a high-efficiency step-down conversion, with the highest efficiency towards low and highest output currents. This way, it increases the battery ON-time. The TPS62366A uses the DCS-Control™ architecture and fully differential sensing to achieve precise static and dynamic transient output voltage regulation. This way, the output
voltage security margins can be kept small. The used architecture supports PWM mode for medium and heavy load conditions and a Power Save mode for light loads. During the PWM mode, it works at the 2.5MHz frequency, and as the load decreases, the TPS62366A enters a Power Save mode (on this board set at 1.16V). This transition is seamless and does not affect output voltage transients. In addition, the TPS62366A incorporates internal soft-start circuitry, which controls the output voltage ramp-up after enabling the device by eliminating the inrush current. The converter avoids excessive voltage drops of primary cells and rechargeable batteries with high internal impedance. During this procedure, the output voltage is monotonically ramped up to the
threshold of the minimum programmable output voltage and further increases by the ramp rate settings to the programmed output voltage. Smart Buck 3 Click uses a standard 2-Wire I2C interface to communicate with the host MCU, supporting Standard, Fast, and High-speed modes with a frequency of up to 3.4MHz. The I2C address is fixed and can not be changed. 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
EasyPIC PRO v8 is a development board specially designed for the needs of rapid development of embedded applications. It supports many high pin count 8-bit PIC microcontrollers from Microchip, regardless of their number of pins, and a broad set of unique functions, such as the first-ever embedded debugger/programmer over WiFi. 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, EasyPIC PRO v8 provides a fluid and immersive working experience, allowing access anywhere and under
any circumstances at any time. Each part of the EasyPIC PRO v8 development board contains the components necessary for the most efficient operation of the same board. In addition to the advanced integrated CODEGRIP programmer/debugger module, which offers many valuable programming/debugging options and seamless integration with the Mikroe software environment, the board 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 DEVICE, and Ethernet are also included, including the well-established mikroBUS™ standard, a standardized socket for the MCU card (SiBRAIN standard), and two display options (graphical and character-based LCD). EasyPIC PRO 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
PIC
MCU Memory (KB)
96
Silicon Vendor
Microchip
Pin count
100
RAM (Bytes)
3808
Used MCU Pins
mikroBUS™ mapper
Take a closer look
Schematic
Step by step
Project assembly
Track your results in real time
Application Output via UART Mode
1. Once the code example is loaded, pressing the "FLASH" button initiates the build process, and programs it on the created setup.
2. After the programming is completed, click on the Tools icon in the upper-right panel, and select the UART Terminal.
3. After opening the UART Terminal tab, first check the baud rate setting in the Options menu (default is 115200). If this parameter is correct, activate the terminal by clicking the "CONNECT" button.
4. Now terminal status changes from Disconnected to Connected in green, and the data is displayed in the Received data field.
Software Support
Library Description
This library contains API for Smart Buck 3 Click driver.
Key functions:
smartbuck3_set_voltage
- Smart Buck 3 set voltage function.smartbuck3_get_voltage
- Smart Buck 3 get voltage function.smartbuck3_set_operation_mode
- Smart Buck 3 set operation mode function.
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 Smart Buck 3 Click example
*
* # Description
* This example demonstrates the use of Smart Buck 3 Click board™.
* This driver provides functions for device configurations
* and for the sets and reads the output voltage.
*
* The demo application is composed of two sections :
*
* ## Application Init
* Initialization of I2C module and log UART.
* After initializing the driver, the default configuration is executed
* and the device is turned on.
*
* ## Application Task
* This example demonstrates the use of the Smart Buck 3 Click board™.
* Changes the output voltage every 3 seconds
* and displays the current voltage output value.
* Results are sent to the UART Terminal, where you can track their changes.
*
* @author Nenad Filipovic
*
*/
#include "board.h"
#include "log.h"
#include "smartbuck3.h"
static smartbuck3_t smartbuck3;
static log_t logger;
static uint16_t vout_mv;
void application_init ( void )
{
log_cfg_t log_cfg; /**< Logger config object. */
smartbuck3_cfg_t smartbuck3_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.
smartbuck3_cfg_setup( &smartbuck3_cfg );
SMARTBUCK3_MAP_MIKROBUS( smartbuck3_cfg, MIKROBUS_1 );
if ( I2C_MASTER_ERROR == smartbuck3_init( &smartbuck3, &smartbuck3_cfg ) )
{
log_error( &logger, " Communication init." );
for ( ; ; );
}
Delay_ms( 100 );
if ( SMARTBUCK3_ERROR == smartbuck3_default_cfg ( &smartbuck3 ) )
{
log_error( &logger, " Default configuration." );
for ( ; ; );
}
Delay_ms( 100 );
log_info( &logger, " Application Task " );
vout_mv = SMARTBUCK3_VOUT_MIN;
}
void application_task ( void )
{
if ( SMARTBUCK3_OK == smartbuck3_set_voltage( &smartbuck3, vout_mv ) )
{
Delay_ms( 100 );
if ( SMARTBUCK3_OK == smartbuck3_get_voltage( &smartbuck3, &vout_mv ) )
{
log_printf ( &logger, " Vout: %u mV\r\n", vout_mv );
}
}
vout_mv += 100;
if ( vout_mv > SMARTBUCK3_VOUT_MAX )
{
vout_mv = SMARTBUCK3_VOUT_MIN;
}
Delay_ms( 3000 );
}
void main ( void )
{
application_init( );
for ( ; ; )
{
application_task( );
}
}
// ------------------------------------------------------------------------ END