MIKROE-2780
MIKROE-2780 Datasheet
PID MIKROE-2780 Weight 30 g
| Part | Datasheet |
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MIKROE-2780 |
MIKROE-2780 (pdf) |
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| Boost click PID MIKROE-2780 Weight 30 g Use our new boost converter to step up the voltage in your next project. Boost click carries Microchip’s MIC2606, a 2MHz, PWM DC/DC boost switching regulator available in a 2mm x 2mm package. Boost click provides an adjustable output voltage through the onboard DAC that drives the FB pin of the MIC2606 to set desired output voltage. The click also has an onboard ADC that converts output voltage and sends its digital value through SPI pins of mikroBUS to the microcontroller. The input voltage can be set to 5V from mikroBUS or in range 7-20V from an external DC source connected to VIN screw terminal. The output voltage can be set up to 38V. Note If the user wants to connect external voltage to VIN, then the click needs the power supply unit connected to the VIN screw terminal. How the click works As you can see from the image there are two onboard screw terminals. One is for connecting the external VIN and the other is for connecting the load. The microcontrollerf reads the output voltage through the SPI from the onboard ADC and according to the desired output voltage, sends calculated data through SPI to an onboard DAC. The DAC drives the FB pin of the MIC2606 to set desired output voltage. The output voltage must always be set greater than the input voltage, otherwise, performance is not guaranteed. Instead of connecting external VIN it is possible to use 5V from mikroBUS. This is done by changing the positions of two onboard jumpers from position EXT to position 5V. Note Both of them must be in position 5V, otherwise performance is not guaranteed. Boost click features MIC2606 is a 0.5A, 2MHz Wide Input Range Boost Regulator with Integrated Switch and Schottky Diode. It’s FB feedback pin provides the control path to control the output. This FB pin is driven by an onboard DAC MCP4921. This is a 5.5V, low-power, low DNL, 12-Bit Digital-to-Analog Converter DAC with SPI interface. It provides high accuracy and low noise performance for industrial applications. The output voltage is connected to an onboard ADC MCP3551 - through a voltage divider. MCP3551 is a 2.7V to 5.5V low-power, 22-bit DeltaSigma Analog-to-Digital Converter. The reference voltage for both the ADC and DAC is provided by MAX6106 onboard voltage reference. Specifications Type Applications On-board modules Interface Input Voltage Click board size Boost Any applications where it is necessary to step up the voltage MIC2606, MCP3551, MCP4921 SPI 3.3V or 5V L x mm Pinout diagram This table shows how the pinout on Boost click corresponds to the pinout on the mikroBUS socket the latter shown in the two middle columns . Notes Notes DAC chip select MIC2606 enable ADC chip select SPI clock pin SPI slave data out pin SPI slave data in pin Power supply Ground CS2 1 AN PWM 16 NC EN 2 RST INT 15 NC CS1 3 CS TX 14 NC SCK 4 SCK RX 13 NC SDO 5 MISO SCL 12 NC SDI 6 MOSI SDA 11 NC +3.3V 7 3.3V 5V 10 +5V GND 8 GND 9 GND Power supply Ground Jumpers and settings Designator Name Default Position Default Option VCCIO SEL Left Logic level selection 3V3/5V, left position 3V3, right position 5V VIN SEL Left Vin selection 5V/EXT, left position EXT, right position 5V |
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