Mikroelektronika d.o.o.
Charger 23 Click Board
Charger 23 Click Board
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Key Features
- Operates as linear charger, selectable charge current, preconditioning of an over-discharged battery, NTC thermistor interface, automatic recharge, CC/CV charge profile, battery removal detection, charge status indication signals, and more
- Based on the ISL78693 - single-cell Li-ion or Li-polymer battery charger from Renesas
- Can be used as a Li-Ion/Polymer battery charger for portable devices and accessories, power tools, and more
- mikroBUS: GPIPO Interface
Overview
Introducing the Charger 23 Click Board™
Upgrade your portable devices, power tools, and accessories with our compact and reliable Charger 23 Click Board™. This add-on board provides a single-cell battery charging solution, powered by the advanced ISL78693 from Renesas.
Advanced Features
The ISL78693 is a single-cell Li-ion or Li-polymer battery charger that operates with an input voltage as low as 2.6V. With a Constant Current/Constant Voltage (CC/CV) profile, your battery will be charged quickly and efficiently. The charge current is also selectable with an external resistor, allowing for a range between 250 and 500mA.
Additional features include:
- Preconditioning of an over-discharged battery
- NTC thermistor interface for charging the battery in a safe temperature range
- Automatic recharge
- And more
mikroSDK Compliant
Our Charger 23 Click Board™ is supported by a mikroSDK compliant library, making software development a breeze. Plus, with the Click board™ coming fully tested and ready to use on any system equipped with the mikroBUS™ socket, you can start charging your batteries in no time.
Upgrade Your Charging Game Today
Don't settle for slow and inefficient charging solutions. Upgrade to the Charger 23 Click Board™ and experience the convenience and reliability you deserve. Order now and take the first step towards powerful charging capabilities.
How Does The Charger 23 Click Board™ Work?
The Charger 23 Click Board™ is based on the ISL78693, an integrated charger for single-cell Lithium chemistry batteries from Renesas. The ISL78693 functions as a traditional linear charger. The ISL78693 charges a battery as a linear charger in the Constant Current (CC) and Constant Voltage (CV) profile. Its constant charge current is selectable via onboard jumper CURR SEL between 250 and 500mA. The charge voltage is also characterized by an accuracy of 1% over the entire recommended operating condition range. The charger automatically recharges the battery when the voltage drops below a recharge threshold of 3.3V typically. When the input supply is not present, the ISL78693 draws less than 1µA current from the battery.
The Charger 23 Click Board™ communicates with the host MCU using several pins of the mikroBUS™ socket. The charger can be enabled or disabled using the EN pin of the mikroBUS™ socket, offering a switch operation to turn ON/OFF the charger. In addition, the ISL78693 also has two indication signals to indicate the charge status. The ST pin is a status open-drain that turns to a low logic state at the beginning of a charge cycle until the End-of-charge (EOC) condition is qualified. Once the EOC condition is qualified, the ST pin goes to a HIGH logic state. The fault pin (FLT) turns low when fault conditions occur, such as the external battery temperature fault, a charge time fault, or battery removal. Besides mikroBUS™ pins, there is also their visual representation via red and yellow LEDs marked with STATUS and FAULT.
An NTC function is also available to monitor the battery temperature and ensure a safe charging temperature range. Apart from monitoring, it is also possible to detect the removal of the battery. To use this function, it is necessary to switch the SEN EN jumper to the YES position and to connect an external NTC to the SENSE header pins.
The Charger 23 Click Board™ can only be operated from a 5V logic voltage level. Therefore, the board must perform appropriate logic voltage conversion before using MCUs with different logic levels. Additionally, there is a possibility for the ISL78693 power supply selection via jumper labelled as VIN SEL to supply the ISL78693 from an external 5V power supply or with a 5V mikroBUS™ power rail. 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 | Battery charger |
| Applications | Can be used as a Li-Ion/Polymer battery charger for portable devices and accessories, power tools, and more |
| On-board modules | ISL78693 - single-cell Li-ion or Li-polymer battery charger from Renesas |
| Key Features | Operates as linear charger, selectable charge current, preconditioning of an over-discharged battery, NTC thermistor interface, automatic recharge, CC/CV charge profile, battery removal detection, charge status indication signals, and more |
| Interface | GPIO |
| Compatibility | mikroBUS |
| Click board size | M (42.9 x 25.4 mm) |
| Input Voltage | 3.3V,5V |
PINOUT DIAGRAM
This table shows how the pinout of the Charger 23 Click Board™ corresponds to the pinout on the mikroBUS™ socket (the latter shown in the two middle columns).
| Notes | Pin |  |
Pin | Notes | |||
|---|---|---|---|---|---|---|---|
| Charge Status | ST | 1 | AN | PWM | 16 | NC | |
| Enable | EN | 2 | RST | INT | 15 | FLT | Fault Indicator |
| NC | 3 | CS | RX | 14 | NC | ||
| NC | 4 | SCK | TX | 13 | NC | ||
| NC | 5 | MISO | SCL | 12 | NC | ||
| NC | 6 | MOSI | SDA | 11 | NC | ||
| 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 | PWR | - | Charge Status LED Indicator |
| LD3 | FAULT | - | Fault LED Indicator |
| JP1 | VIN SEL | Left | ISL78693 Power Supply Selection INT/EXT: Left position INT, Right position EXT |
| JP2 | CURR SEL | Left | Charging Current Selection 250/500mA: Left position 250, Right position 500mA |
| JP3 | SEN EN | Left | Battery Removal Detection Activation NO/YES: Left position NO, Right position YES |
| J2 | - | Populated | External Thermistor Connection |
CHARGER 23 CLICK ELECTRICAL SPECIFICATIONS
| Description | Min | Typ | Max | Unit |
|---|---|---|---|---|
| Supply Voltage | 3.3 | - | 5 | V |
| Output Voltage | - | 3.65 | - | V |
| Charge Current | 250 | - | 500 | mA |
Software Support
We provide a library for the Charger 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 Charger 23 Click Board™ driver.
Key functions
-
charger23_enable_deviceThis function enables the device by setting the EN pin to HIGH logic state. -
charger23_disable_deviceThis function disables the device by setting the EN pin to LOW logic state. -
charger23_get_charger_stateThis function returns the charger state.
Example Description
This example demonstrates the use of the Charger 23 Click Board™ by enabling the device and then reading and displaying the charger status.
void application_task ( void )
{
static uint8_t chg_state_old = CHARGER23_STATE_UNKNOWN;
uint8_t chg_state = charger23_get_charger_state ( &charger23 );
if ( chg_state_old != chg_state )
{
chg_state_old = chg_state;
log_printf( &logger, "rn Charger state: " );
switch ( chg_state )
{
case CHARGER23_STATE_IDLE:
{
log_printf( &logger, "Charge completed with no fault (Inhibit) or Standbyrn" );
break;
}
case CHARGER23_STATE_CHARGING:
{
log_printf( &logger, "Charging in one of the three modesrn" );
break;
}
case CHARGER23_STATE_FAULT:
{
log_printf( &logger, "Faultrn" );
break;
}
default:
{
log_printf( &logger, "Unknownrn" );
break;
}
}
Delay_ms ( 100 );
}
}
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.Charger23
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. A UART terminal is available in all MikroE compilers.
MIKROSDK
A mikroSDK supports the Charger 23 Click Board™s e - MikroE Software Development Kit, which needs to be downloaded from the LibStock and installed for the compiler you are using to ensure proper operation of mikroSDK compliant Click board™ demo applications.
Software Support
We provide a library for the Charger 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 Charger 23 Click Board™ driver.
Key functions
-
charger23_enable_deviceThis function enables the device by setting the EN pin to HIGH logic state. -
charger23_disable_deviceThis function disables the device by setting the EN pin to LOW logic state. -
charger23_get_charger_stateThis function returns the charger state.
Example Description
This example demonstrates the use of the Charger 23 Click Board™ by enabling the device and then reading and displaying the charger status.
void application_task ( void )
{
static uint8_t chg_state_old = CHARGER23_STATE_UNKNOWN;
uint8_t chg_state = charger23_get_charger_state ( &charger23 );
if ( chg_state_old != chg_state )
{
chg_state_old = chg_state;
log_printf( &logger, "rn Charger state: " );
switch ( chg_state )
{
case CHARGER23_STATE_IDLE:
{
log_printf( &logger, "Charge completed with no fault (Inhibit) or Standbyrn" );
break;
}
case CHARGER23_STATE_CHARGING:
{
log_printf( &logger, "Charging in one of the three modesrn" );
break;
}
case CHARGER23_STATE_FAULT:
{
log_printf( &logger, "Faultrn" );
break;
}
default:
{
log_printf( &logger, "Unknownrn" );
break;
}
}
Delay_ms ( 100 );
}
}
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.Charger23
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. A UART terminal is available in all MikroE compilers.
MIKROSDK
A mikroSDK supports the Charger 23 Click Board™s e - MikroE Software Development Kit, which needs to be downloaded from the LibStock and installed for the compiler you are using to ensure proper operation of mikroSDK compliant Click board™ demo applications.
Frequently Asked Questions
Ask a Question-
Is the Charger 23 Click Board™ ready to use right out of the box?
Yes, the Charger 23 Click Board™ is a fully tested product, and it comes ready to be used on a system equipped with the mikroBUS™ socket. This means that you can start using it immediately without any additional testing or setup required.
-
How easy is it to use the Charger 23 Click Board™?
The Charger 23 Click Board™ is extremely user-friendly and is supported by a mikroSDK compliant library. This library includes functions that simplify software development, making it easy to integrate the Charger 23 Click Board™ into your system.
-
What additional features does the Charger 23 Click Board™ offer?
In addition to the ISL78693's features, the Charger 23 Click Board™ also provides the preconditioning of an over-discharged battery, an NTC thermistor interface for charging the battery in a safe temperature range, automatic recharge, and more.
-
What are some of the key features of the ISL78693?
The ISL78693 offers several valuable features, including an ability to operate with an input voltage as low as 2.6V, a linear charger with the battery charged in a Constant Current/Constant Voltage (CC/CV) profile, and selectable charge current between 250 and 500mA.
-
What is the Charger 23 Click Board™?
The Charger 23 Click Board™ is a compact add-on board that offers a single-cell Li-ion or Li-polymer battery charging solution. It features the ISL78693, a single-cell Li-ion or Li-polymer battery charger from Renesas, and is suitable for use in portable devices, power tools, and more.