MIKROE-2575

    MCP73213 click PID: MIKROE-2575   MCP73213 click carries the MCP73213 dual-cell Li-Ion/Li-Polymer battery charge management controller with input overvoltage protection from Microchip. The click is designed to run on either 3.3V or 5V power supply. It communicates with the target microcontroller over SPI. Note: The click is designed to charge a dual‐cell Li‐Ion/Li‐Polymer battery. The input voltage needs to be  higher that the voltage of a dual‐cell Li‐Ion/Li‐Polymer battery.      MCP73213 controller features The MCP73213 is a highly integrated Li-Ion battery charge management controller. The MCP73213 provides specific charge algorithms for dual-cell Li-Ion/Li-Polymer batteries to achieve optimal capacity and safety in the shortest charging time possible. The absolute maximum voltage, up to 18V, allows the use of MCP73213 in harsh environments, such as low-cost wall wart or voltage spikes from plug/unplug. An internal overvoltage protection (OVP) circuit monitors the input voltage and keeps the charger in shutdown mode when the input supply rises above the typical 13V OVP threshold. The OVP hysteresis is approximately 150 mV for the MCP73213 device. How it works First you need to connect the input voltage to the input screw terminal. Then to set the input voltage, because it needs to be larger than voltage of two series connected batteries for regular charging, (which means it needs to be >8V). We can change the charging current trough SPI interface. Now just leave the batteries to charge, and when they are charged it will be signalized on the status LED. Key features      MCP73213 controller   o 13V Input Overvoltage Protection  o Resistor Programmable Fast Charge Current: 130 mA‐1100 mA  o Elapse Safety Timer: 4 hr, 6 hr, 8 hr or Disable  Two pairs of screw terminals  Status indication LED  SPI interface  3.3V or 5V power supply  Specification  Product Type Buck Applications Portable Media players, digital camcorders, handheld devices, etc. MCU MCP73213 13V Input Overvoltage Protection, Resistor Programmable Fast Charge Key Features Current: 130 mA-1100 mA, Elapse Safety Timer: 4 hr, 6 hr, 8 hr or Disable Interface SPI Power Supply 3.3V or 5V Compatibility mikroBUS Click board S (28.6 x 25.4 mm) size Pinout diagram This table shows how the pinout on MCP73213 click corresponds to the pinout on the mikroBUS™ socket (the latter shown in the two middle columns). Notes    Pin  Pin Notes  mikroBUStm  Not connected  NC  1 AN  PWM 16 NC Not connected  Not connected  NC  2 RST INT  15 NC Not connected  Chip Select  SPI_CS  3 CS  TX  14 NC Not connected  SPI Clock  SPI_SCK 4 SCK RX  13 NC Not connected  Not connected  NC  5 MISO SCL 12 NC Not connected  SPI Master output svale input  SPI_MOSI 6 MOSI SDA 11 NC Not connected  Power supply  +3.3V  7 3.3V Ground  GND  8 GND 5V  10 +5V Power supply  GND 9 GND Ground  Maximum ratings Description  Min  Typ Max Unit Input Voltage Range  4    16 V  Operating Supply Voltage  4.2    13 V  Fast Change Current Regulation  130    1100 A  Programming Code examples for MCP73213 click, written for MikroElektronika hardware and compilers are available on Libstock. Code snippet The following code snippet shows how to initialize the SPI interface, and then use it to set output current to 250mA. 01 void main() { 02 03 /*Sets chip select*/ 04 GPIO_Digital_Output (&GPIOD_BASE, _GPIO_PINMASK_13); 05 06 GPIO_Alternate_Function_Enable(&_GPIO_MODULE_SPI3_PC10_11_12); 07 /*Initializes SPI interface*/ 08 SPI3_Init_Advanced(_SPI_FPCLK_DIV256, _SPI_MASTER | _SPI_16_BIT | 09 _SPI_CLK_IDLE_LOW | _SPI_FIRST_CLK_EDGE_TRANSITION | _SPI_MSB_FIRST | 10 _SPI_SS_DISABLE | _SPI_SSM_ENABLE | _SPI_SSI_1, 11 &_GPIO_MODULE_SPI3_PC10_11_12); 12 13 SPI_Set_Active(SPI3_Read, SPI3_Write); 14 /*Sets chip select to inactive*/ 15 GPIOD_ODR.B13 = 1; 16 17 delay_ms(5000); 18 19 20 21 //5 kOhm, 250mA 22 GPIOD_ODR.B13 = 0; 23 Spi3_Write(0b00000000); 24 Spi3_Write(0b10000010); 25 GPIOD_ODR.B13 = 1; 26 delay_ms(5000); 27 }                                            https://shop.mikroe.com/click/power‐management/mcp73213 5‐1‐17