Mikroelektronika d.o.o.
Planche à clic Buck 23
Planche à clic Buck 23
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Key Features:
- Rendement élevé, courant de sortie de 6 A, excellente régulation de charge, large plage de tension de sortie sélectionnable par interface série, fonctions de protection, large plage d'entrée, alimentation sélectionnable, etc.
- Basé sur le MAX20010C - convertisseur abaisseur synchrone d'Analog Devices
- Peut être utilisé pour les applications de point de charge et de post-régulation
- mikroBUS : interface I2C
Transformez la gestion de l'alimentation de votre système avec le Buck 23 Click Board™ !
Fatigué des convertisseurs de puissance inefficaces et peu fiables ? Passez à la Buck 23 Click Board™ ! Cette carte complémentaire compacte comprend le MAX20010C, un convertisseur abaisseur synchrone à haut rendement entièrement intégré d'Analog Devices. Grâce à sa capacité à abaisser la tension de son entrée à sa sortie, cette carte est parfaite pour les applications de point de charge et de post-régulation.
Bénéficiez d'une tranquillité d'esprit grâce au courant de sortie continu de 6 A du MAX20010C sur une large plage d'alimentation d'entrée de 3 V à 5,5 V. Vous pouvez également compter sur sa précision de tension de sortie de ±2 % et son fonctionnement efficace sur une plage de charge de tension de sortie configurable de 0,5 V à 1,58 V. De plus, le MAX20010C comprend des protections programmables contre le démarrage progressif, les surintensités et les surchauffes.
Le Buck 23 Click Board™ est également incroyablement facile à utiliser. Il est livré entièrement testé et prêt à être utilisé sur un système équipé du socket mikroBUS™. Et avec sa prise en charge d'une bibliothèque compatible mikroSDK, le développement de logiciels est un jeu d'enfant ! Simplifiez votre gestion de l'alimentation et transformez votre système avec le Buck 23 Click Board™ !
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How Does The Buck 23 Click Board™ Work?
The Buck 23 Click Board™ is based on the MAX20010C, a high-efficiency, synchronous step-down converter from Analog Devices, providing interface-configurable output voltage range from 0.5V to 1.58V. The MAX20010C offers a factory-preset output voltage of 1V and supports dynamic voltage adjustment with programmable slew rates. Other features include programmable soft-start, overcurrent, and overtemperature protections. The wide input/output voltage range, ±2% output voltage accuracy, and the ability to provide up to 6A load current make this Click board™ an ideal solution for on-board point-of-load and post-regulation applications.
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The MAX20010C features a synchronization input, marked as SYN and routed to the PWM pin of the mikroBUS™ socket, that puts the converter either in skip mode or forced-PWM mode of operation. In PWM mode, the converter switches at a constant frequency with variable on-time. In skip mode, the converter's switching frequency is load-dependent until the output load reaches a certain threshold.
The Buck 23 Click Board™ communicates with MCU using the standard I2C 2-Wire interface to read data and configure settings. Also, the MAX20010C allows choosing its I2C slave address using the SMD jumper labelled ADDR SEL. Besides, it also possesses a power-good function and a device-enable feature. The power-good feature is routed to the red LED marked as PGOOD and PG pin of the mikroBUS™ socket, indicating that the output reached regulation, while the EN pin serves for power ON/OFF purposes optimizing power consumption (converter operation permission).
The Buck 23 Click Board™ can operate with either 3.3V or 5V logic voltage levels selected via the VCC SEL jumper. This way, it is allowed for both 3.3V and 5V capable MCUs to use the communication lines properly. Additionally, there is a possibility for the MAX20010C power supply selection via jumper labelled as VDD SEL to supply the MAX20010C from an external power supply terminal in the range from 3V to 5.5V or with mikroBUS™ power rails. However, the Click board™ comes equipped with a library containing easy-to-use functions and an example code that can be used, as a reference, for further development.
SPECIFICATIONS
| Type | Buck |
| Applications | Can be used for point-of-load and post-regulation applications |
| On-board modules | MAX20010C - synchronous step-down converter from Analog Devices |
| Key Features | High efficiency, 6A output current, excellent load regulation, broad output voltage range selectable by serial interface, protection features, wide input range, selectable power supply, and more |
| Interface | I2C |
| Compatibility | mikroBUS |
| Click board size | M (42.9 x 25.4 mm) |
| Input Voltage | 3.3V or 5V,External |
PINOUT DIAGRAM
This table shows how the pinout of the Buck 23 Click Board™ corresponds to the pinout on the mikroBUS™ socket (the latter shown in the two middle columns).
| Notes | Pin |  |
Pin | Notes | |||
|---|---|---|---|---|---|---|---|
| NC | 1 | AN | PWM | 16 | SYN | Synchronization | |
| Enable | EN | 2 | RST | INT | 15 | PG | Power-Good |
| NC | 3 | CS | RX | 14 | NC | ||
| NC | 4 | SCK | TX | 13 | NC | ||
| NC | 5 | MISO | SCL | 12 | SCL | I2C Clock | |
| NC | 6 | MOSI | SDA | 11 | SDA | I2C Data | |
| Power Supply | 3.3V | 7 | 3.3V | 5V | 10 | 5V | Power Supply |
| Ground | GND | 8 | GND | GND | 9 | GND | Ground |
ONBOARD SETTINGS AND INDICATORS
| Label | Name | Default | Description |
|---|---|---|---|
| LD1 | PWR | - | Power LED Indicator |
| LD2 | PGOOD | - | Power-Good LED Indicator |
| JP1 | VCC SEL | Left | Logic Level Voltage Selection 3V3/5V: Left position 3V3, Right position 5V |
| JP2 | ADDR SEL | Left | I2C Address Selection 0/1: Left position 0, Right position 1 |
| JP3 | VDD SEL | Right | MAX20010C Power Supply Selection VEXT/VCC: Left position VEXT, Right position VCC |
BUCK 23 CLICK ELECTRICAL SPECIFICATIONS
| Description | Min | Typ | Max | Unit |
|---|---|---|---|---|
| Supply Voltage | 3.3 | - | 5 | V |
| External Power Supply | 3 | - | 5.5 | V |
| Output Voltage | 0.5 | - | 1.58 | V |
| Output Current | - | 6 | - | A |
Software Support
We provide a library for the Buck 23 Click Board™ as well as a demo application (example), developed using MikroE compilers. The demo can run on all the main MikroE development boards.
The package can be downloaded/installed directly from NECTO Studio The package Manager(recommended), downloaded from our LibStock™ or found on MikroE Github account.
Library Description
This library contains API for the Buck 23 Click Board™ driver.
Key functions
-
buck23_set_vstepThis function sets the voltage output step to 10mV or 12.5mV. -
buck23_set_voutThis function sets the voltage output. -
buck23_get_pg_pinThis function returns the PG (power good) pin logic state.
Example Description
This example demonstrates the use of the Buck 23 Click Board™ by changing the output voltage.
void application_task ( void )
{
uint16_t vout_mv;
uint8_t status;
if ( BUCK23_OK == buck23_set_vstep ( &buck23, BUCK23_VSTEP_10 ) )
{
log_printf ( &logger, " ------------------------------------rn" );
log_printf ( &logger, " VOUT resolution: 10mVrn VOUT range: 500mV to 1270mVrn" );
log_printf ( &logger, " ------------------------------------" );
}
for ( vout_mv = BUCK23_VOUT_MIN_VSTEP_10; vout_mv <= BUCK23_VOUT_MAX_VSTEP_10; vout_mv += 50 )
{
if ( BUCK23_OK == buck23_read_register ( &buck23, BUCK23_REG_STATUS, &status ) )
{
log_printf ( &logger, "rn STATUS: 0x%.2Xrn", ( uint16_t ) status );
}
if ( BUCK23_OK == buck23_set_vout ( &buck23, vout_mv ) )
{
log_printf ( &logger, " VOUT: %u mVrn", vout_mv );
}
if ( !buck23_get_pg_pin ( &buck23 ) )
{
log_printf ( &logger, " ERROR: No power goodrn" );
log_printf ( &logger, " Restarting devicern" );
buck23_restart_device ( &buck23 );
vout_mv -= 50;
}
Delay_ms ( 1000 );
}
if ( BUCK23_OK == buck23_set_vstep ( &buck23, BUCK23_VSTEP_12_5 ) )
{
log_printf ( &logger, " ------------------------------------rn" );
log_printf ( &logger, " VOUT resolution: 12.5mVrn VOUT range: 625mV to 1587.5mVrn" );
log_printf ( &logger, " ------------------------------------" );
}
for ( vout_mv = BUCK23_VOUT_MIN_VSTEP_12_5; vout_mv <= BUCK23_VOUT_MAX_VSTEP_12_5; vout_mv += 50 )
{
if ( BUCK23_OK == buck23_read_register ( &buck23, BUCK23_REG_STATUS, &status ) )
{
log_printf ( &logger, "rn STATUS: 0x%.2Xrn", ( uint16_t ) status );
}
if ( BUCK23_OK == buck23_set_vout ( &buck23, vout_mv ) )
{
log_printf ( &logger, " VOUT: %u mVrn", vout_mv );
}
if ( !buck23_get_pg_pin ( &buck23 ) )
{
log_printf ( &logger, " ERROR: No power goodrn" );
log_printf ( &logger, " Restarting devicern" );
buck23_restart_device ( &buck23 );
vout_mv -= 50;
}
Delay_ms ( 1000 );
}
}
The full application code, and ready to use projects can be installed directly from NECTO Studio The package Manager(recommended), downloaded from our LibStock™ or found on MikroE Github account.
Other MikroE Libraries used in the example:
- MikroSDK.Board
- MikroSDK.Log
- Click.Buck23
Additional Notes and Information
Depending on the development board you are using, you may need USB UART Click Board™, 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 MikroE compilers.
MIKROSDK
The Buck 23 Click Board™ is supported with mikroSDK - MikroE Software Development Kit. To ensure proper operation of mikroSDK compliant Click board™ demo applications, mikroSDK should be downloaded from the LibStock and installed for the compiler you are using.
Planche à clic Buck 23
Frequently Asked Questions
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