Active-semi ACT2861EVK1-201, User Manual

Page 1: ... ACT2861QIxxx options can be evaluated on this EVK by replacing the IC and any other necessary components Features The EVK can be used as a standalone board if desired However to access the internal registers and to take full advantage of the IC s capability the user must connect the EVK kit to a PC with Active Semi s USB TO I2C interface dongle and use the GUI software The EVK provides full acces...

Page 2: ...2C dongle a Dongle b Custom 4 pin connector that connects the USB TO I2C dongle to the EVK assembly Required Equipment ACT2861EVK1 201 USB TO I2C Dongle Power supply 4 30V 6A for full power operation Oscilloscope 100MHz 4 channels 2 Serial Li battery or power supply capable of acting like a battery Digital Multi meters DMM Windows compatible PC with spare USB port Hardware Setup Figure 2 EVK Setup...

Page 3: ...VBAT if want to observe input and output current 5 Be careful to keep the input voltage and battery voltage within the specifications 6 Optional Connect the EVK to the PC with the USB dongle 7 Add a jumper to J2 to connect EN_CHG to V_IO 8 Add a jumper to J7 to connect INTBP to V_IO 9 Apply 12V input power GUI Setup optional 1 Refer to the end of this document for detailed instructions to install ...

Page 4: ... A IVREG_max Maximum LDO VREG load current 0 1 A EVK Operation The ACT2861EVK1 201 operates in two different modes Charger Mode and OTG Mode The EVK hardware setup is different for each of these two modes Charger Mode Configuration 1 Connect INTBP and V_IO together with a jumper on J7 2 Connect EN_CHG and V_IO together with a jumper on J2 3 Leave the nOTG pin on J3 open 4 In Charge mode both an in...

Page 5: ...rk when the IC is in SHIP MODE Charge Current and Current Limit Configuration The ACT2861 features configurable input current limit charge current OTG input current and OTG output current These four features are programmed with a combination of an external resistor and an internal I2C register Refer to the ACT2861 datasheet for programming details Input Current Limit The ACT2861EVK1 201 EVK input ...

Page 6: ... to 200 by default The OTG input current limit is easily changed by modifying any of these three parameters The easiest way to change the input current limit is with the OTG Battery Ilim field in the GUI OTG Output Current Limit Configuration The ACT2861EVK1 201 EVK OTG output current limit is set to 3 03A This is a function of the 10mΩ current sense resister R6 the 20kΩ RILIM resistor R15 and the...

Page 7: ...iveSwitcherTM is a trademark of Active Semi 7 Additional Programmable Functionality The ACT2861 contains many additional programmable parameters Refer to the ACT2861 datasheet for additional functionality and default I2C register values Test Results ...

Page 8: ...UG110 Rev 2 0 23 Jul 2018 Innovative PowerTM ActiveSwitcherTM is a trademark of Active Semi 8 ...

Page 9: ...UG110 Rev 2 0 23 Jul 2018 Innovative PowerTM ActiveSwitcherTM is a trademark of Active Semi 9 ...

Page 10: ...AT_OUT VBAT nIRQ nCHG VREG INTBP VIN A2D IFB 1 2 3 J5 J4 35V 10u C8 35V 10u C1 Active Semi SHIPM GND VBAT VIN 470u C2 0R R17 1 2 3 J7 INTBP V_IO VREG 470u C17 TP4 TP5 GND 35V 10u C6 25V 22u C15 25V 22u C16 22u C18 0R R22 GND GND AGND AGND AGND J6 AGND 22u C19 GND ACT2861 EVK Schematic PCB 0301 01 00 ACT2861 AGND 1 TH 2 INTBP 3 VREG 4 PGND 5 SDA 6 SCL 7 nOTG 8 SHIPM 9 nIRQ 10 OILIM 11 VBATS 12 OSRN...

Page 11: ...UG110 Rev 2 0 23 Jul 2018 Innovative PowerTM ActiveSwitcherTM is a trademark of Active Semi 11 Layout Figure 5 Layout Top Layer ...

Page 12: ...UG110 Rev 2 0 23 Jul 2018 Innovative PowerTM ActiveSwitcherTM is a trademark of Active Semi 12 Figure 6 Layout Layer GND ...

Page 13: ...UG110 Rev 2 0 23 Jul 2018 Innovative PowerTM ActiveSwitcherTM is a trademark of Active Semi 13 Figure 7 Layout Layer VCC ...

Page 14: ...UG110 Rev 2 0 23 Jul 2018 Innovative PowerTM ActiveSwitcherTM is a trademark of Active Semi 14 Figure 8 Layout Bottom Layer ...

Page 15: ...onik 885012206026 9 C17 1 ELCap 470uF 16V 8mmx11mm Wurth El ektronik 860020374012 10 C20 C21 2 DNI 0603 std std 11 D1 1 LED Blue 0603 Wurth El ektronik 150060VS75000 12 J1 J8 2 Connector 2 pin Wurth El ektronik 691214110002S 13 J2 1 Header 2 pin 100mil Wurth El ektronik 61300211121 14 J4 J6 2 Header 1pin 100mil Wurth El ektronik 61300111121 15 J3 J5 J7 3 Header 3 pin 100mil Wurth El ektronik 61300...

Page 16: ...trademark of Active Semi 16 26 TP2 TP3 TP6 TP7 TP8 TP10 TP11 TP12 6 Test Point Black Through Hole 1mm 0 040 Keystone 5000 27 U1 1 ACT2861QI201 4mm 4mm QFN Active Semi ACT2861QI201 28 1 PCB ACT2861EVK1 REVB n a n a PCB 0309 02 29 3 Shunt 100mil Black n a n a 60900213421 ...

Page 17: ... ACT2861 GUI GUI Overview The GUI has 2 basic function buttons allocated in top left of the Tool Bar which are Read and Write I2C The GUI contains 2 setting modes Basic Mode and Advanced Mode In Basic Mode screen it displays basic user programmable configuration options are programmed using the drop down boxes or check boxes Advanced Mode contain the button text for changing setting for every sing...

Page 18: ...tures can be selected using the button text In the left side of the Advanced Mode Screen click on the Tiles Selector to display the register to view or change Then change a register one bit at a time by clicking on the desired bit The value of the bit is display right next to the bit name button Note that the far right side of the screen contains a scroll down button to scroll down to additional r...

Page 19: ...ends reading registers after making changes to them Immediately reading the registers after a write confirms the changes were properly stored Read Button Write Clicking on this button writes the GUI settings to the ACT2861 s registers All registers are written regardless of whether or not they were changed Write Button Dongle Connection Status The GUI also contains a dongle connection status that ...