MAX17823HEVKIT#

Click here for production status of specific part numbers. Evaluates: MAX17823H MAX17823H Evaluation System General Description Benefits and Features The MAX17823H evaluation kit (EV kit) demonstrates the capabilities of the MAX17823H advanced smart batterypack controller. Vertical headers (P2, P3, P5, and P6) allow for the connection of multiple EV kits to support the maximum 32-device daisy-chain capability. ●● Battery-Cell String Emulation ●● UART interface ●● Windows XP®-, Windows Vista®-, or Windows® 7-Compatible Software ●● Fully Assembled and Tested Component Lists Table 1. MAX17823H EV System PART MAX17823HEVKIT# QTY DESCRIPTION 2 MAX17823H EV kit PHONE WEBSITE MAX17823H EV Kit Table 2. Component Suppliers SUPPLIER Central Semiconductor Corp. 631-435-1110 www.centralsemi.com Diodes Incorporated 805-446-4800 www.diodes.com Fairchild Semiconductor 888-522-5372 www.fairchildsemi.com Murata Electronics North America, Inc. 770-436-1300 www.murata-northamerica.com TDK Corp. 847-803-6100 www.component.tdk.com Note: Indicate that you are using the MAX17823H when contacting these component suppliers. Table 3. MAX17823H EV Kit Files FILE DESCRIPTION INSTALL.EXE Installs the EV kit files on your computer MAX17823_MAX17880.EXE Application program CDM20600.EXE Installs the USB device driver UNINSTALL.EXE Uninstalls the EV kit software USB_Driver_Help.pdf USB driver installation help file Ordering Information appears at end of data sheet. SMBus is a trademark of Intel Corp. Windows, Windows XP, and Windows Vista are registered trademarks of Microsoft Corp. 319-100379; Rev 1; 5/19 Evaluates: MAX17823H MAX17823H Evaluation System Quick Start Recommended Equipment ●● Two MAX17823H EV Kits ●● One MAX17841 EV Kit ●● MINQUSB+ command module ●● MINIQUSB board ●● MINIQUSB-XHV board (this board is not used) ●● Two 9V to 60V DC power supplies (refer to the MAX17823H IC datasheet for recommended operating ranges) ●● User-supplied Windows XP-, Windows Vista-, or Windows 7-compatible PC with a spare USB port Note: In the following sections, software-related items are identified by bolding. Text in bold refers to items directly from the EV kit software. Text in bold and underlined refers to items from the Windows operating system. Procedure The MAX17823H EV kit is fully assembled and tested. Follow the steps below to verify board operation. Caution: Do not enable the power supplies until all connections are completed. 1) Visit www.maximintegrated.com/design/tools/ applications/evkit-software/ to download the latest version of the EV kit software, 17823xxx.ZIP. Save the EV kit software to a temporary folder and uncompress the ZIP file. 2) Install the EV kit software on your computer by running the INSTALL.EXE program inside the temporary folder. The program files are copied and icons are created in the Windows Start | Programs menu. 3) Connect the MINIQUSB+ to the J3 and J4 headers on the MAX17841 EV kit. 4) Connect the USB cable from the PC to the MINIQUSB board. A Building Driver Database window pops up in addition to a New Hardware Found message if this is the first time the EV kit board is connected to the PC. If a window is not seen that is similar to the one described above after 30 seconds, remove the USB cable from the MINIQUSB and reconnect it. Administrator privileges are required to install the USB device driver on Windows XP, Windows Vista, and Windows 7. 5) Follow the directions of the Add New Hardware Wizard to install the USB device driver. Choose the Search for the best driver for your device www.maximintegrated.com option. Specify the location of the device driver to be C:\Program Files\MAX17823 (default installation directory) using the Browse button. Refer to the USB_Driver_Help.PDF document included with the software for additional information. 6) Appropriate FTDI drivers might need to be installed from the website http://www.ftdichip.com/Drivers/ D2XX.htm. 7) Ensure that all jumper shunts and switches are configured as listed in Table 1, Table 2, and Table 3. 8) Configure the DC power supplies for 18V, and disable their outputs. 9) Connect the power supply grounds together. Then connect this common ground to AGND on the MAX17841 EV kit. 10) Connect the first 18V supply between the PACK+ and PACK- pads on the first MAX17823H EV kit. 11) Connect the second 18V supply between the PACK+ and PACK- pads on the second MAX17823H EV kit. 12) Using the six blue two-wire crossover cables, make the following connections: ●● Connect P1 on MAX17841 EV kit to P6 on the first MAX17823H EV kit ●● Connect P2 on MAX17841 EV kit to P5 on the first MAX17823H EV kit ●● Connect P2 on the first MAX17823H EV kit to P6 on the second MAX17823H EV kit ●● Connect P3 on the first MAX17823H EV kit to P5 on the second MAX17823H EV kit ●● Connect the red loop-back cable from P2 to P3 of the second MAX17823H EV kit 13) Enable the DC power supply. 14) Start the MAX17823EV kit software by opening the corresponding icon in the Start | Programs menu. The EV kit software automatically establishes a connection with the EV kit. Once the status bar at the bottom of the window displays Interface found, proceed to the next step. 15) If checked, uncheck the MAX17841 SHDN checkbox in the upper left box. 16) Select Initialization tab. 17) Click the Wake Up button. 18) Click the Hello ALL button in MAX17823 box. 19) Click the Set First Address button in MAX17823 box. 20) Verify that the Device Addresses grid contains two device addresses and that the status bar at the bottom indicates Initialization Successful. 21) The EV kit is now ready for further evaluation. Maxim Integrated │  2 MAX17823H Evaluation System Table 4. MAX17823H EV Kit Default Jumper Settings JUMPER SHUNT POSITION JU0-JU3, JU15-JU18, CELL2-CELL12 On one pin only JU14, JU19 Installed Evaluates: MAX17823H Detailed Description of Software The MAX17823H EV kit is evaluated in conjunction with the MAX17823H evaluation software. The graphical user interface (GUI) provides a user-friendly environment for reading and writing to all device registers, as well as executing the seven device commands. The GUI is divided into two sections: group boxes and command tabs. The upper-left group box provides shutdown/enabling of the MAX17841 device. Table 5. MAX17841 EV Kit Default Jumper Settings JUMPER SHUNT POSITION JU1-JU4, JU6, JU7 On one pin only JU5 1-2 Table 6. MAX17823H EV Kit Quick Start Switch Settings SWITCH SETTING SW1 ON (actuators toward the top) Note: 1) The default position of SW1 is OFF (actuators towards bottom) and this setup is for Battery input on P1. 2) The optional position of SW1 is ON (actuators towards top) and this setup is for an external power supply input between BAT0 and BAT12 with the 2kΩ resistor ladder. The Initialization tab provides controls to execute the Wake Up command, the MAX17823 - HELLOALL command , and MAX17823 - Set First Address command for writing the first address to the ADDRESS register of each device in the daisy chain. This tab also includes a Device Address grid that displays the address of each device in the daisy chain, a Communication Log that displays a summary of bus activity, and a Short Cuts tab that provides faster methods of executing useful software functions. The Read/Write tab located in MAX17823 tab provides controls for executing the WRITEDEVCIE, WRITEALL, READDEVICE, and READALL commands. The Voltage Measurements tab provides initiating and monitoring the ADC scanning of the connected devices. The MAX17823 tab provides access to the registers of all MAX17823H devices on the daisy chain. Each tab includes a grid that is used to display the contents read from the registers. The grid is made of x columns and y rows, where x is the number of registers (shown above each grid) associated with that tab and y is the number of devices in the daisymchain. In addition, each tab includes various controls (checkboxes, edit boxes, buttons, labels, etc.) for configuring each device. Refer to the MAX17823H IC datasheet for additional register and interface details. The MAX17841 tab provides access to the MAX17841 device registers. The software also provides functions to facilitate the evaluation process. These include a PEC calculator, the capability to save ADC measurements to file, and the ability to save/load register configurations to/from a file. When evaluating the EV kit, refer to the MAX17823H IC datasheet and the MAX17841 IC datasheet for additional details. www.maximintegrated.com Maxim Integrated │  3 Evaluates: MAX17823H MAX17823H Evaluation System System Initialization The daisy chain of MAX17823H EV kit is initialized using the controls provided in the Initialization tab on the MAX17823EV kit software GUI. The recommended initialization sequence is provided below: 1) Verify jumper configuration. See the Device Startup section. 2) Uncheck the MAX17841 SHDN checkbox. Address button on the software’s Configuration tab in the MAX17823 tab. 1) Click the MAX17823 - HELLOALL button. This command sends out the HELLOALL command along with the chosen first device address. It also determines how many devices are in the daisy chain, based on the address byte that is returned by the last device. 2) Click the MAX17823 - Set First Address button. This control writes the address of the first device to the upper 8 bits of each device’s 16-bit ADDRESS register. This control uses the WRITEALL command. 3) Click the Wake Up button. This will execute a sequence that wakes up the MAX17823H devices in the daisy chain. 4) Select the address of the first device in the daisy chain in the edit box adjacent to the MAX17823 HELLOALL button. • The value entered here contains the address (A[4:0]) of the first device in the daisy chain. The A[4:0] value is written to the most significant bits of the ADDRESS register of the first device. • Refer to the HELLOALL Command section in the MAX17823H IC data sheet for additional details Note: When re-initializing the device, the address unlock bit (ADDRUNLOCK) must be set before proceeding to the next step. This is done by clicking the Unlock Device The daisy chain is initialized once all devices have been programmed with the address of the first device. The software is now fully operational, and all active devices are configurable. Refer to the UART Daisy-Chain Initialization Sequence section in the MAX17823H IC datasheet for additional initial configuration recommendations. Grid Initialization When the Set First Address sequence is complete, the software updates the grids on the MAX17823H Device Addresses box in the Initialization tab and the Thresholds, Voltage Measurement, DIAGCFG/FMEA, Alert/Status, Enables, Configuration, BALSW, and Model/Version/ADC Test tabs in the MAX17823 tab. Table 7. ADDRESS Register ADDRESS REGISTER ADDRESS Bit 7 Bit 6 Bit 5 Bit 4 Bit 3 Bit 2 Bit 1 Bit0 0 0 0 0 0 0 0 1 ADDRESS REGISTER (Upper 8bits) Bit 15 Bit 14 Bit 13 Bit 12 Bit 11 Bit 10 Bit 9 Bit 8 0 0 0 FA4 FA3 FA2 FA1 FA0 ADDRESS REGISTER (Lower 8bits) Bit 7 Bit 6 Bit 5 Bit 4 Bit 3 Bit 2 Bit 1 Bit 0 0 0 0 DA4 DA3 DA2 DA1 DA0 www.maximintegrated.com Maxim Integrated │  4 MAX17823H Evaluation System Device Addresses Grid The Device Addresses box is initialized after clicking the MAX17823 - Set First Address button. The grid contains the addresses of all detected devices. Selecting a cell that contains a device address updates the Active Device drop-down list. For a two-device daisy chain with a start address of 0x00, the grid would be displayed as shown in Figure 1. Register Grids The Thresholds, Voltage Measurement, DIAGCFG/ FMEA, Alert/Status, Enables, Configuration, BALSW, Evaluates: MAX17823H and Model/Version/ADC Test tabs in the MAX17823 tab include grids that display the contents of the selected device registers. These tabs are all updated to contain n number of rows, where n equals the total number of detected devices. For a two-device daisy chain, the grids on each tab are configured with two rows, as shown in Figure 2. The number of columns in each grid is set by the number of registers associated with that grid. In addition, each row has an associated device number button that, when clicked, sets that device as the active device, updating the Active Device drop-down list. Figure 1. MAX17823H EV Kit Software—Device Address Grid Figure 2. MAX17823H EV Kit Software—Device Rows www.maximintegrated.com Maxim Integrated │  5 MAX17823H Evaluation System Write Registers A specific device in the daisy chain can be written to by using the Read/Write tab and Active Device drop-down list. Follow the steps below to perform a write to a specific register of a single device: 1. Select the device to be written to from the Active Device drop-down list (Figure 3). 2. Select the register to be written to from the Select MAX17823 Register box in Read/Write tab. Evaluates: MAX17823H when checked/unchecked selects/deselects all the register checkboxes on that tab. The Select All and Deselect All operations can also be executed by clicking the Set All >> button or Clear All >> button. At the completion of a read operation, the edit box in the Read/Write tab displays the data of the selected registers. Figure 5 shows the edit box in the Read/Write tab. Figure 6 shows the result of clicking the Refresh Active Tab F8 button with the Enables tab displayed, and Table 8 lists the available read controls and their respective functions. 3. Enter the hex value (####) into the Data: 0x edit box in the Write Devices box (Figure 4). 4. Click the Write Active Device button. The Write Devices box can also be used to write an entered value into the active register of all the devices in the daisy chain. Follow the steps below to perform a write to a specific register of all devices: 1) Select the register to be written to from the Select MAX17823 Register box. Figure 3. Active Device Drop-Down List 2) Enter the hex value (####) into the Data: 0x edit box in the Write Devices box. 3) Click the Write All Devices button. Read Registers A specific device in the daisy chain can be read by using the Read/Write tab and the Active Device drop-down list. Follow the steps below to perform a read of a specific register of a single device: 1) Select the device to read from the Active Device drop-down. Figure 4. Write Devices Box 2) Select the register to be read from the Select MAX17823 Register box in Read/Write tab. 3) Click the Read Active Device button. 4) The read data is displayed in the left-side edit box. The Read tab can also be used to read the active register of all the devices in the daisy chain. Follow the steps below to perform a read from a specific register of all devices: 1) Select the register to be read from the Select MAX17823 Register box. Figure 5. Read Devices Box 2) Click the Read All Devices button. 3) The read data is displayed in the same order as the device address in the left-side edit box. In addition, there is another read control located at the upper left on the display: Refresh Active Tab F8. The Refresh Active Tab F8 control will read the registers that have been selected. To select a register, check the associated checkbox located above the grid on each register tab. Each tab also has an associated ALL checkbox that www.maximintegrated.com Figure 6. Enables Tab After Executing Set All Maxim Integrated │  6 Evaluates: MAX17823H MAX17823H Evaluation System Table 8. Read Controls CONTROL NAME CONTROL TYPE FUNCTION Read Active Device Button Reads the active MAX17823H register of the active MAX17823H device Read All Devices Button Reads the active MAX17823H register of all devices Refresh Active Tab F8 Button*, Menu item Performs a read of all selected registers on the active/visible register tab Auto Refresh on Tab Change Checkbox* When checked, the register tabs are automatically refreshed when becoming active/visible *See the ADC Scan section. Scan Table 9. Scan Controls CONTROL NAME CONTROL TYPE FUNCTION Start ADC Scanning Checkbox When checked, a scan of the ADC is initiated every x milliseconds, where x is set by the Interval controls below Interval (msec) Edit box Used to enter the time interval between ADC scans Set Interval Button Sets the time interval shown in the Interval (msec) edit box Scan DONE Button Clears the SCANDONE bit DATA ready Button Clears the DATARDY bit TIMEOUT Button Clears the SCANTIMEOUT bit Data Move Button Sets the DATAMOVE bit. Moves the data from internal registers to useraccessible registers Figure 7. Scan Tab Snapshot www.maximintegrated.com Maxim Integrated │  7 Evaluates: MAX17823H MAX17823H Evaluation System Register Tabs The 58 device registers are organized onto the following tab sheets in the MAX17823 tab: Thresholds, Voltage Measurements, DIAGCFG/FMEA, Alert/Status, Enables, Configuration, BALSW, Model/Version/ADC Test, and Read/Write. Each tab provides write access to each device in the daisy chain, as well as a grid that displays the contents of the devices’ registers. The display grids are updated by performing read operations through the Refresh Active Tab F8. See the Read Registers section for more details. The write operations are performed using the individual Configure Active Device button or Configure All Devices button located on the register tabs. Thresholds Tab registers is entered and displayed on the GUI as either a voltage or hex value. The threshold registers and their associated GUI controls are listed in Table 10. The Write Device buttons are used to write the entered data to the active device. The active device is selected through the Active Device drop-down list. The Write All buttons are used to write the entered data to all devices in the daisy chain. For all the threshold registers, the data (D[11:0]) is contained in the upper 12 bits of the 16-bit register. When entering data into the Undertemperature Threshold (AINOT) and Overtemperature Threshold (AINUT) edit boxes, enter only the hex value of the upper 12 bits. The lower nibble of each threshold register is ignored during a write, and is read back as zeros. The Thresholds tab (Figure 8) is used to configure the seven threshold registers. The data for the threshold Table 10. Threshold Registers THRESHOLD REGISTER (ADDRESS) GUI CONTROL DISPLAY/DATA INPUT FORMAT Overvoltage Clear (0x40) OVTHRCLR Voltage* Overvoltage Set (0x42) OVTHRSET Voltage* Undervoltage Set (0x44) UVTHRSET Voltage* Undervoltage Clear (0x46) UVTHRCLR Voltage* Cell Mismatch (0x48) MSMTCH Voltage* Auxiliary Analog Input Overtemperature (0x49) AINOT Hex Auxiliary Analog Input Undertemperature (0x4A) AINUT Hex *The voltage range for unipolar measurements is 0V to 5V and the voltage range for bipolar measurements is -2.5V to +2.5V www.maximintegrated.com Maxim Integrated │  8 MAX17823H Evaluation System Evaluates: MAX17823H Figure 8. MAX17823H Evaluation Kit Software (Thresholds Tab) www.maximintegrated.com Maxim Integrated │  9 MAX17823H Evaluation System Evaluates: MAX17823H Voltage Measurements Tab The Voltage Measurements tab (Figure 9) displays the results for the ADC conversions on cells 1–12, as well as the results from the TOTAL, MINCELL, MAXCELL, BLOCK, AIN1, AIN2, and DIAG registers. The checkboxes at the top of the tab and their associated Configure Cells (F9) button are used to enable ADC scanning of the associated measurement. These checkboxes have the same function as the CELL_EN checkboxes on the Configuration tab. See the ADC Scan section for details on setting up and initiating an ADC scan. Figure 9. MAX17823H Evaluation Kit Software (Voltage Measurements Tab) www.maximintegrated.com Maxim Integrated │  10 MAX17823H Evaluation System Evaluates: MAX17823H DIAGCFG/FMEA Tab The diagnostic (DIAG) and failure-mode effects analysis (FMEA) registers are accessed from this tab (Figure 10). The tab is divided into two group boxes: DIAGCFG and FMEA. The DIAGCFG group box displays controls for configuring the register settings. The FMEA group box displays the FMEA alerts. Figure 10. MAX17823H Evaluation Kit Software (DIAGCFG/FMEA Tab) www.maximintegrated.com Maxim Integrated │  11 MAX17823H Evaluation System Alert/Status Tab All device alerts are monitored from the Alert/Status tab (Figure 11). The right side of the tab is divided into three group boxes: Status Flags (STATUS), Cell Balancing Diagnostic Alert, and Alert Status (ALRTCELL, ALRTOVCELL, ALRTUVCELL). The Status Flags (STATUS) group box displays the alerts from the STATUS (0x02) register. The Cell Balancing Diagnostic Alert group box displays the alerts from the ALRTBALSWCELL (0x08) register. The Alert Status (ALRTCELL, ALRTOVCELL, ALRTUVCELL) group box displays the alerts from the ALRTCELL (0x04), ALRTOVCELL (0x05), and ALRTUVCELL (0x07) registers. Refer to the Cell Measurements and Balancing Switch Fault Detection sections in the MAX17823H IC datasheet for additional information. Each group box contains buttons that are associated with that register’s alert bits. When performing a read of these alert registers, the state of each alert bit is displayed on the buttons’ faces. To clear an alert, a zero must be written to the bit position assigned to that specific alert. An alert is cleared as follows: Evaluates: MAX17823H 1) Select the alerts to be cleared. Click the button displaying the alert. The button’s label changes from 1 to 0. 2) Write to the alert register(s) using one of the following options: a) Click the Clear Device button to clear the selected alerts of the active device (see the Active Device drop-down list),or b) Click the Clear All button to clear the selected alerts of all devices in the chain Note: Only the buttons displaying bold text can be cleared by clicking the button. Buttons with non-bold text are readonly bits and are automatically cleared. The alarm enable bits for the ALRTOV and ALRTUV alerts are located in the OVALRTEN (0x06) and UVALRTEN (0x07) registers, respectively. The ALRTCELL alerts result from an ALRTOV or ALRTUV alert. Therefore, to disable an ALRTCELL alert, both the ALRTOV and ALRTUV alerts for that cell must be disabled (i.e., to disable the alert for cell 12 (AL12), the OV12 and UV12 enable bits must be set to 0). Figure 11. MAX17823H Evaluation Kit Software (Alert/Status Tab) www.maximintegrated.com Maxim Integrated │  12 MAX17823H Evaluation System Enables Tab The MAX17823H alert and alarm functions are enabled/ disabled by checking/unchecking the Enables tab (Figure 12) checkboxes and then clicking either the Configure Active Device or the Configure All Devices button. When enabled, the overvoltage and undervoltage Evaluates: MAX17823H alerts can be monitored and cleared using the buttons on the Alert/Status tab. See the Alert/Status Tab section. The overvoltage and undervoltage alert enable bits are contained in their respective register’s lower 12 bits (_ VALRTEN[11:0]). The Scan Control (SCANCTRL) group box provides controls for configuring the scan settings. Figure 12. MAX17823H Evaluation Kit Software (Enables Tab) www.maximintegrated.com Maxim Integrated │  13 Evaluates: MAX17823H MAX17823H Evaluation System Configuration Tab The Configuration tab (Figure 13) is divided into nine group boxes: Measurement Enable (MEASUREEN), General Purpose I/O (GPIO), ADC Acquisition Time (ACQCFG), Watchdog Configuration (WATCHDOG), Device Configuration (DEVCFG), Device Configuration 2 (DEVCFG2), Top Cell (TOPCELL), Watch Dog Demo, and Balancing Switch Discharge (BALSWDISCHG). Table 11 lists the main Configuration tab’s controls and their respective functions. Table 11. Configuration Controls General Purpose I/O (GPIO) Input Radio button Configures the GPIO pin as an input Output Radio button Configures the GPIO pin as an output GPIO Logic State Label Displays the current state of the GPIO pin GPIO_OUT Checkbox Controls the GPIO pin when configured as an output ADC Acquisition Time (ACQCFG) Acquisition Time Edit box 6-bit acquisition time for AUXIN1/AUXIN2 Watchdog Configuration (WATCHDOG) Timer Value Edit Box Timer Pre-Divider Drop-Down List Sets the step size of the cell-balancing timer Sets the cell-balancing timer Device Configuration (DEVCFG) Scan Timeout Radio Button Enables/disables watchdog timeout Packet Error Checking Radio button Enables/disables packet error checking Double Buffering Radio Button Enables/disables double buffering of the measurement registers ADC Datapath Test Radio Button Enables/disables ADC datapath diagnostic test Alive Counter Radio Button Enables/disables alive counter Measurement Enable (MEASUREEN) CELL1 - CELL12 Checkbox Selects which cell to enable for measurement Set All >> Button Enables all cells for measurement Clear All >> Button Disables all cells for measurement BLOCK Checkbox Enables Block voltage measurement VBLK Divider Radio Button Connects/disconnects VBLK measurement path AIN1, AIN2 Checkbox Selects which AUX to enable for measurement Configure Active Device Button Writes the configuration settings to the device listed in the Active Device drop-down list Configure All Devices Button Writes the configuration settings to all devices in the daisy chain Unlock Device Address Button Sets the address unlock bit (ADDRUNLOCK) high to allow a new HELLOALL command Initiate Soft Reset Button Sets the SPOR bit high, initiating a digital power-on-reset event Initiate Hardware Reset Button Sets the FORCEPOR bit high, initiating a hardware power-on-reset event www.maximintegrated.com Maxim Integrated │  14 MAX17823H Evaluation System Evaluates: MAX17823H Figure 13. MAX17823H Evaluation Kit Software (Configuration Tab) www.maximintegrated.com Maxim Integrated │  15 Evaluates: MAX17823H MAX17823H Evaluation System BALSW Tab The BALSW tab (Figure 14) is divided into four group boxes: CELLTEST, BALSWEN, Balancing Diagnostic (BALDIAGCFG1), and Balancing Switch Thresholds. Table 12. Cell and Balancing Switch Controls Cell Input Test Switches (CELLTEST) CTSTEN0 - CTSTEN12 Checkboxes Enables unconnected cell input detection Cell Balancing Switch Enable (BALSWEN) BAL1 - BAL12 Checkboxes Enables external cell balancing CELLxxEN_M Checkboxes Selects which cell to enable for measurement Cell Input MUX Selection Radio Button Selects multiplexer (HV-MUX, ALT-MUX) Scan Polarity Radio Button Selects ADC mode (Uni-polar, Bi-polar) Short Circuit Threshold Edit box Set the threshold voltage by HEX format Voltage Low Threshold Edit box Set the threshold voltage by HEX format Voltage High Threshold Edit box Set the threshold voltage by HEX format Balancing Diagnostic (BALDIAGCFG1) Balancing Switch Thresholds Figure 14. MAX17823H Evaluation Kit Software (Switches Tab) www.maximintegrated.com Maxim Integrated │  16 Evaluates: MAX17823H MAX17823H Evaluation System Model/Version/ADC Test Tab This register tab (Figure 15) displays the contents of each devices’ ADDRESS and MODEL VERSION register. It also reads the ID1 and ID2 register and verifies that the device ID is valid. Model and Version Number: The lower nibble of the Version register (VER[3:0]) contains the IC’s version number. The upper 12 bits (VER[15:4]) contain the MAX17823H model number, which is set to 0x823 (1000 00100011). The Version register is a read-only register. Table 13. Version Register Bit 15 Bit 14 Bit 13 Bit 12 Bit 11 Bit 10 Bit 9 Bit 8 1 0 0 0 0 0 1 0 Bit 7 Bit 6 Bit 5 Bit 4 Bit 3 Bit 2 Bit 1 Bit 0 0 0 1 1 VER[3:0] Figure 15. MAX17823H Evaluation Kit Software (Model/Version/ADC Test Tab) www.maximintegrated.com Maxim Integrated │  17 MAX17823H Evaluation System ADC Scan An ADC scan measures all enabled cell inputs, all enabled auxiliary inputs, and the self-diagnostics channel (if enabled). The conversion begins once the SCAN bit in the SCANSTART register is set. The following procedure outlines the steps to set up and initiate single or continuous ADC scanning. Set Up 1) Enable the cells to measure the following: • Check the CELL_EN checkboxes in the Measure Enable box on the Voltage Measurements tab. • Click the Configure (F9) button. Note: The cell channels can also be enabled with the checkboxes on the Configuration tab. 2) Select the cell registers to read by checking the CELL_ checkboxes on the Voltage Measurements tab. 3) Enable the self-diagnostics and auxiliary inputs to measure by checking the AIN1, AIN2 and DIAG checkboxes in the Measure Enable box on the Voltage Measurements tab. 4) Select the self-diagnostics and auxiliary input registers for reading by checking the AIN1, AIN2, and DIAG checkboxes on the Voltage Measurements tab. Initiate a Single ADC Scan 1) Select the Voltage Measurements tab. Evaluates: MAX17823H 2) Select the File | Log Scan Data menu item or press CTRL+L. The Scan Count window should appear. 3) Enter the number (n) of ADC scans to record, and then click Enter. 4) Select the Voltage Measurements tab. 5) Enter the time delay between ADC scans into the Interval (msec) edit box. 6) Check the Start ADC Scanning checkbox. A red Logging Data label appears, indicating that data is being recorded. 7) Once n number of scans has been completed, the Log Complete window appears. Click OK. 8) A Log Data dialog box appears. The default file name is 17823all and the default file type is .xls (excel spreadsheet). If a different name or file type is preferred, enter it into the File name edit field. Click Save. At the completion of this process, data logging is disabled, but the continuous ADC scanning continues until the Start ADC Scanning checkbox is unchecked. The file generated by the software logs the measured data of the enabled channels for all the devices in the daisy chain. 2) Click the Refresh Active Tab F8 button Note: The SCAN bit is automatically set before a read is done on the Voltage Measurements tab. Initiate Continuous ADC Scanning: 1) Select the Voltage Measurements tab. 2) Enter the time delay between ADC scans into the Interval (msec) edit box. 3) Click the Set Interval button. 4) Check the Start ADC Scanning checkbox. Figure 16. File | Log Scan Data Note: To save the data during a continuous ADC scan, perform the steps from the Log Scanned Data section. Log Scanned Data The MAX17823H EV kit software allows the data measured during continuous ADC scanning to be saved to a file. This feature is available by selecting the File | Log Scan Data menu item, and should be set up before scanning is started. The steps below explain how to set up data logging: 1) Perform steps 1–4 in the ADC Scan section. www.maximintegrated.com Figure 17. Log Complete Window Maxim Integrated │  18 Evaluates: MAX17823H MAX17823H Evaluation System Save/Load Register Configuration The software features functions to save register configuration and load register configuration. This allows all current register configurations and GUI control settings to be saved and loaded at a later time. When saving, the software first performs a read of all the registers of each device in the daisy chain to obtain their current configurations. Once complete, a Save All Data dialog box appears and asks for a file name and type (the default is 17823config.csv). When loading, a Load Configuration file window appears and asks for a file to open (the default is 17823config.csv). The load function configures the GUI, writes the data from the file to the registers of all the devices in the daisy chain, and finishes by performing a read of all the selected device registers. Note: Read-only data is not saved to the configuration file. Only configurable options are saved to the configuration file. PEC Byte The MAX17823H EV kit software supports packet-error checking (PEC) by implementing a CRC-8 algorithm to maintain data integrity with the devices in the daisy chain. The software generates the PEC byte when performing a write to a MAX17823H device and verifies the PEC byte received from the devices after a read operation. The software makes this algorithm available as a PEC calculator, which is found under the Tools menu. Figure 18 shows the PEC calculator. Detailed Description of Hardware The MAX17823H evaluation kit (EV kit) demonstrates the capabilities of the MAX17823H advanced smart batterypack controller. Vertical headers (P2-P6) allow for the connection of multiple EV kits, supporting the maximum 32-device daisy-chain capability. The MAX17823H device can be configured to operate with 3–12 battery cells. The cells can be directly connected to the EV kit or can be routed through header P1. See the Battery Cells section. The EV kit also facilitates utilizing the auxiliary pins and accessing the general-purpose input/output (GPIO) pins. Device Startup To start the EV kit, apply at least 9V across the PACK+ and PACK- PCB pads and then follow the startup sequence below: 1) Connect a pack voltage across the PACK+ and PACK- pads. 2) Connect a battery voltage across the BAT0–BAT12 pads (battery cells or external power supply). 3) Connect the MINIQUSB command module to the MAX17841EV kit’s J3 and J4 headers. 4) Using the provided USB cable, connect the MINIQUSB command module to a PC. 5) Start the MAX17823EV kit software. 6) Ensure that the MAX17841 SHDN checkbox on the MAX17823 software is not checked. 7) Click the Wake Up button on the Initialization tab in the MAX17823 software. Note: The SHDN pin of the MAX17841 device is pulled up to +3.3V by the MINIQUSB’s K1 GPIO pin. Once the wake-up routine is completed, the SHDN pin of each device on the daisy chain should rise to approximately 8.5V. The devices are now enabled and ready for communication. Figure 18. PEC Calculator www.maximintegrated.com Maxim Integrated │  19 Evaluates: MAX17823H MAX17823H Evaluation System Battery Cells When evaluating the MAX17823H EV kit, the cell stack voltage is provided by cascading 3–12 battery cells or by applying a DC voltage between the BAT0-BAT12 pads. The following sections explain how to configure the EV kit and connect the battery cells. Cell Configuration ●● A minimum of three cells must be connected to each MAX17823H device. ●● A maximum of 12 cells can be connected to each MAX17823H device. ●● The BAT0_ to BAT1_ cell inputs must always be populated with a battery cell. ●● The remaining cells are populated between BAT 1_ and BAT 2_, BAT 2_ and BAT 3_, and so on, until all cells are connected. ●● All unused cell inputs must be shorted together, using the appropriate CELL2–CELL12 jumpers. 1) Configure switch SW1 according to Table 14. 2) When using a DC power supply, the cascaded 2kΩ resistors provide divided-down voltages to the cell input pins. This, in effect, emulates the connection of 12 battery cells. When DC power supplies are used to emulate battery cells, set its output in the range from 9V to 60V. Connect the power supplies between the PACK+ and PACK- pads and ensure that a shunt is installed on jumpers JU14 and JU19. 3) Configure jumpers CELL1–CELL12 according to the number of battery cells (actual or emulated) that are connected to the system (see Table 15). Cell Connections When using actual battery cells, connect them across the appropriate BAT_ pads, or route them through the P1connector. When using actual or emulated battery cells, keep in mind the following cell-connection requirements (see Table 16 for an 8-cell example): Table 14. Switch SW1 Description SW1 CELL-STACK VOLTAGE CONNECTION All off* 2–12 battery cells Cells cascaded between BAT0 and BAT12 All on DC power supply to emulate battery See step 10 in the Quick Start, Procedure section *Default position. Table 15. Jumpers JU2–JU12and JU102–JU112 Description NO. OF CELLS SHUNT POSITION CELL 2 CELL 3 CELL 4 CELL 5 CELL 6 CELL 7 CELL 8 CELL 9 CELL 10 CELL 11 CELL12 3 Off Off On On On On On On On On On 4 Off Off Off On On On On On On On On 5 Off Off Off Off On On On On On On On 6 Off Off Off Off Off On On On On On On 7 Off Off Off Off Off Off On On On On On 8 Off Off Off Off Off Off Off On On On On 9 Off Off Off Off Off Off Off Off On On On 10 Off Off Off Off Off Off Off Off Off On On 11 Off Off Off Off Off Off Off Off Off Off On 12* Off Off Off Off Off Off Off Off Off Off Off *Default position. www.maximintegrated.com Maxim Integrated │  20 Evaluates: MAX17823H MAX17823H Evaluation System Table 16. 8-Cell Connection Daisy-chain CELL + TERMINAL - TERMINAL 1 BAT1_ BAT0_ 2 BAT2_ BAT1_ 3 BAT3_ BAT2_ 4 BAT4_ BAT3_ 5 BAT5_ BAT4_ 6 BAT6_ BAT5_ 7 BAT7_ BAT6_ 8 BAT8_ BAT7_ — BAT9_shorted to BAT8_ — BAT10_shorted to BAT9_ — BAT11_shorted to BAT10_ — BAT12_shorted to BAT11_ Table 17. Header P1 Cell Connections CELL + TERMINAL - TERMINAL 1 P1-1 P1-3 2 P1-3 P1-5 3 P1-5 P1-7 4 P1-7 P1-9 5 P1-9 P1-11 6 P1-11 P1-13 7 P1-13 P1-15 8 P1-15 P1-17 9 P1-17 P1-19 10 P1-19 P1-21 11 P1-21 P1-23 12 P1-23 P1-25 www.maximintegrated.com The MAX17823H includes a UART bus system that allows cascading of up to 32 MAX17823H devices. The EV kit facilitates device cascading by routing the UART bus between the P2/P3 and P5/P6 connectors. These connectors are used to cascade multiple EV kit boards together. See Table 18 – Table 21. Table 18 – Table 21 provide the complete pinouts for the interboard connectors provided on the EV kit. Table 18. Header P2 PIN NET 1 TXUN_A 2 TXUP_A Table 19. Header P3 PIN NET 1 RXUN_A 2 RXUP_A Table 20. Header P5 PIN NET 1 TXLP_A 2 TXLN_A Table 21. Header P6 PIN NET 1 RXLP_A 2 RXLN_A Maxim Integrated │  21 Evaluates: MAX17823H MAX17823H Evaluation System Auxiliary Inputs The auxiliary inputs of the MAX17823H devices are routed to jumpers JU0 and JU1. This allows the auxiliary analog inputs to be used to measure external resistance temperature detector (RTD) components. A negative temperature coefficient (NTC) RTD can be configured with the AUXIN1 or AUXIN2 analog inputs to accurately monitor module or battery-cell temperature. When the auxiliary inputs are not used, a shunt can be installed on its associated jumper, providing a known pin state (AGNDA). Table 23. MAX17841 EV kit’s J3 Header MINIQUSB Command Module PIN NAME 1 GND 2 INT 3 GPIO7 4 COMP_OUT 5 GPIO8 6 ALRMUV/ 7 DIN 8 ALRMOV/ The MINIQUSB command module is powered by the host PC’s USB port. Refer to the MINIQUSB User Guide for additional information. See Table 23 for a pin-to-pin association between the MINIQUSB command module and the EV kit’s J3 header 9 CS/ 10 MCLR/ 11 SCLK 16-Pin Header Footprints 12 USHDN/ 13 DOUT 14 NC 15 VDD 16 NC The following tables provide the complete pinouts for each of the 16-pin single-row headers (J1-J4) provided on the EV kit. Between the headers is a MAX17823H device that is fanned out to the four 16-pin headers. J4 and J5 Headers The J4 and J5 header footprints provide direct access to the MAX17823H IC. Table 22. Auxiliary Jumpers AUXILIARY INPUT (DEVICE) JUMPER* AUXIN1A (U1) JU0 AUXIN2A (U1) JU1 *To use the auxiliary input, remove the shunt from the jumper. www.maximintegrated.com Table 24. HeadersJ1–J4 PIN NO. PIN NAME J1 J2 J3 J4 1 NC GPIO0 SW0 SW8 2 AGND NC C0 C8 3 SHDNL/ NC SW1 SW9 4 AGND TXLP C1 C9 5 VAA TXLN SW2 SW10 6 TXUN VDDL2 C2 C10 7 TXUP GNDL2 SW3 SW11 8 GNDL1 RXLP C3 C11 9 VDDL1 RXLN SW4 SW12 10 GNDL3 NC C4 C12 11 VDDL3 NC SW5 VBLKP 12 RXUN CTG C5 NC 13 RXUP AUXIN2 SW6 HV 14 GPIO3 AUXIN1 C6 DCIN 15 GPIO2 AGND SW7 CPP 16 GPIO1 THRM C7 CPN Maxim Integrated │  22 MAX17823H Evaluation System Test Procedures: Overvoltage and Undervoltage Threshold Testing With the ASIC communicating normally to the host in a single ASIC configuration, configure the OV and UV set and clear thresholds in the Thresholds tab and check if the appropriate alerts are set. The detailed procedure is as follows: A variable 80V, 10A power supply is used to power the MAX17823H. Set initial module voltage to 36V (3V/cell). Test Procedure: 1) ASIC is ready to measure (cell measurement channels enabled, device addresses configured). 2) Start measurement. 3) Read cell voltages. 4) Confirm cell voltages are as expected by clicking F8 (Refresh Active Tab) button. 5) Confirm that STATUS/ ALRTCell/ ALRTOVCell/ ALRTUVCell registers read 0x0000 by selecting them and reading the register values (click F8 button to read them). Evaluates: MAX17823H 6) In the Thresholds tab, OVTHRSET (Overvoltage Set) is configured to 4.2V, OVTHRCLR (Overvoltage Clear) is configured to 3.8V, UVTHRSET (Undervoltage Set) is configured to 2.4V, and UVTHRCLR (Undervoltage Clear) is configured to 2.7V. 7) After writing these values in the appropriate boxes, click the adjacent Configure All Devices button. 8) Select the registers and confirm the values are written appropriately in the registers by clicking the F8 button. 9) In the Enables tab, click Set All buttons for Overvoltage Alert Enables and Undervoltage Alert Enables and then click the Configure All Devices button. 10) Select the ALRTOVEN and ALRTUVEN registers and confirm the registers are updated appropriately by clicking F8 button. 11) Increase the supply voltage steadily up to 52V so that each cell reads 4.33V (> 4.2V). 12) Refresh the new readings on the Voltage Measurements tab. 13) Open the Alert/Status tab and click the F8 button. Figure 19. Programmable OV and UV Thresholds Diagram www.maximintegrated.com Maxim Integrated │  23 Evaluates: MAX17823H MAX17823H Evaluation System 14) The ALRTOV bit in the Status register should be set to 1. Also, all the OV bits (OV1 to OV12) in the ALRTOVCELL register should be set to 1 and bits AL1 to AL12 in the ALRTCELL register should be set to 1. 15) In the DC Byte box, OV flag also sets to 1 in the Datacheck byte. 16) Steadily decrease the supply voltage to 42V (3.5 Volts/cell). 17) Repeat steps 12 and 13. 18) The ALRTOV bit in the Status register should be cleared to 0. Also, all the OV bits (OV1 to OV12) in the ALRTOVCELL register should be cleared and bits AL1 to AL12 in the ALRTCELL register should be cleared to 0. 19) In the DC Byte box, OV flag also gets cleared to 0 in the Datacheck byte. 20) Decrease the supply voltage steadily down to 24V so that each cell reads 2.0V (< 2.4V). 21) Refresh the new readings on the Voltage Measurements tab. 22) Open the Alert/Status tab and click the F8 button. 23) The ALRTUV bit in the Status register should be set to 1. Also, all the UV bits (UV1 to UV12) in the ALRTUVCELL register should be set to 1 and bits AL1 to AL12 in the ALRTCELL register should be set to 1. 24) In the DC Byte box, UV flag also sets to 1 in the Datacheck byte. 25) Steadily increase the supply voltage to 36V (3.0 Volts/cell) 26) Repeat steps 12 and 13. 27) The ALRTUV bit in the Status register should be cleared to 0. Also, all the UV bits (UV1 to UV12) in the ALRTUVCELL register should be cleared and bits AL1 to AL12 in the ALRTCELL register should be cleared to 0. 28) In the DC Byte box, UV flag also gets cleared to 0 in the Datacheck byte. This verifies the OV/UV Set and Clear thresholds for MAX17823. The Overvoltage or Undervoltage alert in the Enables tab can be selected for any specific cell. www.maximintegrated.com Cell Balancing and Watchdog Timer Testing: With the ASIC communicating normally to the host in a single-ASIC configuration, cell balancing and watchdog timer configuration are tested. The detailed procedure is as follows: Connect 12 Li-Ion cells to the MAX17823H device. Set module voltage to 45.55V Use software revision R342 for this testing. Test Procedure: 1) ASIC is ready to measure (cell measurement channels enabled, device addresses configured). 2) Confirm cell voltages are as expected by clicking the F8 button on the Voltage Measurements tab. 3) Open the BALSW tab and click Check Odd button under the BALSWEN title. 4) Click Configure All Devices button. 5) Confirm that the BALSWEN register reads 0x0555 by selecting it and reading the register value (click F8 button to read) in the BALSW tab. All of the odd cell balancing switches will be turned on. 6) Open the Voltage Measurement tab and read the voltages by clicking the F8 button. 7) All of the odd cell voltages will drop by a few mV. (This drop depends on battery impedance and the parasitic I x R drop in the path of that measurement. On Maxim EV kits, this drop is approximately 80 to 100 mV). 8) Open the BALSW tab and click Check Even button under the BALSWEN title. 9) Cick the Configure All Devices button. 10) Confirm that the BALSWEN register reads 0x0AAA by selecting it and reading the register value (click the F8 button to read) in the BALSW tab. All of the even cell balancing switches will be turned on. 11) Open the Voltage Measurement tab and read the voltages by clicking F8 button. 12) All even cell voltages will drop by a few mV. (This drop depends on battery impedance and the parasitic I x R drop in the path of that measurement. On Maxim EV kits, this drop is approximately 80 to 100 mV). Maxim Integrated │  24 Evaluates: MAX17823H MAX17823H Evaluation System 13) Open the Configuration tab and select a timer predivider value from the drop-down list in the Watch Dog Configuration box. For example, 1 sec[range = 1 to 15sec]. 5) Select Die Temp option and click Configure All Devices button. 14) Write the timer value as 15(0xF) in the Watch Dog Configuration box. 7) The user will see the result in °C below the DIAG register. 15) Click the Configure All Devices button and confirm that the WATCHDOG register reads the appropriate value based on pre-divider and timer configuration (in this case, it should read 0x1F00) by selecting it and reading the register value (click the F8 button to read) in the Configuration tab. 16) Click the F8 button periodically to see the timer value steadily go from 0xF to 0x0. In this case, the timer is set to 15 seconds and the cell balancing is turned off after the amount of time set by the user. 17) After the timer reaches 0, open the Voltage Measurement tab and click the F8 button to read cell voltages. They should have returned to their initial values, indicating that the cell balancing has been turned off by the timer. Note: The cell balancing timeout feature consists of a 4-bit countdown timer and a pre-divider with three control bits for range selection. Both the timer and pre-divider are programmed through the MSB of the WATCHDOG register. The pre-divider sets the effective LSb time of the counter-timer. If the value of the CBTIMER does reach zero, the cell balancing switches are disabled until the timer is either disabled or is refreshed by writing a nonzero value. 6) Make sure the DIAG register is checked so that it can be read by clicking F8 button. 8) In this case, since the part was tested at room temperature, the DIAG showed a value of 21.86°C. Open Sense Leads With the ASIC communicating normally to the host in a single ASIC configuration, randomly force an open on a particular cell input, or a set of cell inputs. Then how all cell voltage measurements are affected is noted down with and without using the BALSW diagnostics. 12 Li-Ion cells were connected to MAX17823H device. Set module voltage to 45.55V 1) Results with device configured for standard measurement path (no diagnostics enabled): Test Procedure: a) ASIC is ready to measure (cell measurement channels enabled, device addresses configured). b) Start measurement. c) Read cell voltages. d) Confirm cell voltages are as expected. e) Apply open sense wire condition as specified. f) Start measurement. Die Temperature Diagnostic Testing g) Read cell voltages. With the ASIC communicating normally to the host in a single ASIC configuration, perform the die temperature diagnostic test. The detailed procedure is as follows: Note: Input voltage is floating in this case, so measurement values will not be determinant. Diagnostic test is run to definitively detect this fault. Connect 12 Li-Ion cells to the MAX17823H device. Set module voltage to 45.55V ●● Sub-test1: C0 and AGND: Cell 1 measurement goes to 0 volts Test Procedure: ●● 1) ASIC ready to measure (cell measurement channels enabled, device addresses configured). Sub-test2: C12 and DCIN: Cell 12 measurement goes to 0 volts. ●● 2) Confirm cell voltages are as expected by clicking F8 button on Voltage Measurements tab. Sub-test3: C1: Cell 1 measures 4.9988 V while cell 2 goes to 2.45 V. ●● 3) In the Voltage Measurements tab, click mode button above the DIAG check box. Sub-test4: C4: Cell 4 measures 2.02 V while cell 5 voltage is observed to be 4.9988V ●● Sub-test5: C8: Cell 8 measures 1.62 V while cell 9 voltage is observed to be 4.9988V 4) A new pop-up window will appear with the diagnostic measurement mode. www.maximintegrated.com Maxim Integrated │  25 Evaluates: MAX17823H MAX17823H Evaluation System 2) Results using cell-sense wire open diagnostic: h) Write BALLOWTHR to [0x84AC] and BALHIGHTHR to [0xA8F4]. Test Procedure: The preceding values were chosen as typical Vds = 0.75V using the 150mA balancing current and 5Ω worst-case RON. The 0xA8F4  800mV threshold, while the 0x84AC  150mV threshold. a) ASIC is ready to measure (cell measurement channels enabled, device addresses configured).Start measurement b) Read cell voltages. c) Confirm cell voltages are as expected. i) d) Read FMEA register and check ALRTBALSW = 0. Start measurement and read cell voltages (click the F8 button when the Voltage Measurement tab is active in EV kit software) e) Read STATUS register and check ALRTFMEA = 0. i. f) ii. Read the STATUS register and check that ALRTFMEA = 1 Apply open sense wire condition as specified. g) Enable the BALSWDIAG [2:0] first to a setting of 101 (open odd switches) and then to 110 (open even switches) in the SCANCTRL (0x013) register. Cell-sense wire odd check combined with cell-sense wire even check indicates to the user which cell-sense wire is in open condition. j) Read the FMEA ALRTBALSW = 1 register and check Read the ALRTBALSWCELL register and check ALRTBALSWn = 1, where n is the sense line number that is open. k) Read cell voltages. Sub-test1: C0 and AGND Note: For C0 and AGND open test, a Schottky diode was added in parallel with the C0/C1 ESD diode on the EV kit to allow return current path through C1. Cell No Cell1 Cell2 Cell3 Cell4 Cell5 Cell6 Cell7 Cell8 Cell9 Cell10 Cell11 Cell12 Voltage (Volts) 2.48 0.00 2.77 0.00 2.77 0.00 2.77 0.00 2.80 0.00 2.77 0.00 • ALRTFMEA in STATUS register set to 1. • ALRTBALSW in FMEA register set to 1. • ALRTBALSW1 in ALRTBALSW register set to 1. Sub-test2: C12 and DCIN Cell No Cell1 Cell2 Cell3 Cell4 Cell5 Cell6 Cell7 Cell8 Cell9 Cell10 Cell11 Cell12 Voltage (Volts) 0.00 2.77 0.00 2.77 0.00 2.77 0.00 2.77 0.00 2.75 0.00 2.49 • ALRTFMEA in STATUS register set to 1. • ALRTBALSW in FMEA register set to 1. • ALRTBALSW12 in ALRTBALSW register set to 1. Sub-test3: C1 Cell No Cell1 Cell2 Cell3 Cell4 Cell5 Cell6 Cell7 Cell8 Cell9 Cell10 Cell11 Cell12 Voltage (Volts) 2.56 0.00 2.78 0.00 2.77 0.00 2.80 0.00 2.77 0.00 2.78 0.00 • ALRTFMEA in STATUS register set to 1. • ALRTBALSW in FMEA register set to 1. • ALRTBALSW1 in ALRTBALSW register set to 1. www.maximintegrated.com Maxim Integrated │  26 Evaluates: MAX17823H MAX17823H Evaluation System Sub-test4: C4: Cell No Cell1 Cell2 Cell3 Cell4 Cell5 Cell6 Cell7 Cell8 Cell9 Cell10 Cell11 Cell12 Voltage (Volts) 0.00 2.78 0.00 2.54 0.00 2.77 0.00 2.77 0.00 2.75 0.00 2.77 • ALRTFMEA in STATUS register set to 1. • ALRTBALSW in FMEA register set to 1. • ALRTBALSW4 in ALRTBALSW register set to 1. Sub-test5: C8: Cell No Cell1 Cell2 Cell3 Cell4 Cell5 Cell6 Cell7 Cell8 Cell9 Cell10 Cell11 Cell12 Voltage (Volts) 0.00 2.77 0.00 2.77 0.00 2.77 0.00 2.54 0.00 2.75 0.00 2.49 • ALRTFMEA in STATUS register set to 1. • ALRTBALSW in FMEA register set to 1. • ALRTBALSW8 in ALRTBALSW register set to 1. Ordering Information PART MAX17823HEVKIT# TYPE EV Kit #Denotes RoHS compliant. www.maximintegrated.com Maxim Integrated │  27 MAX17823H Evaluation System Evaluates: MAX17823H MAX17823H EV Kit Bill of Materials REF_DES C2, C84, C102 C3 C5 C23 QTY 4 1 1 1 C6-C17, C25 37 C41-C52, C67-C78 37 C24 1 C18, C19, C20 3 C21 1 C40 1 C53, C54, C79, C81 4 C1, C57, C58, C83 4 C27 1 C1001, C1002, C1003 D14, D27 D1, D2, D7, D11 D9, D10, D12, D13 D28,D29 J5 JU0-JU3, JU14-JU19, CELL2CELL12 L1, L2 3 2 4 4 2 1 DESCRIPTION 0.47μF ±10%, 16V X7R ceramic capacitor (0603) 1μF ±10%, 16V X7R ceramic capacitor (0603) 2.2µF ±10%, 100V X7R ceramic capacitor (1210) 4.7µF ±10%, 50V X7R ceramic capacitor (1210) 0.1μF ±10%, 100V X7R ceramic capacitor, automotive grade (0805) 0.1μF ±10%, 100V X7R ceramic capacitor, automotive grade (0805) 0.1μF ±10%, 100V X7R ceramic capacitor automotive grade (0603) 100pF ±5%, 50V C0G ceramic capacitor (0402) 1000pF ±10%, 25V X7R ceramic capacitor, automotive grade (0603) 1µF ±10%, 100V X7R ceramic capacitor (1206) 15pF ±5%, 100V C0G ceramic capacitor, automotive grade (0603) 2200pF ±5%, 630V C0G ceramic capacitor, auto grade (1206) 0.47µF ±10%, 100V X7S ceramic capacitor, automotive grade (0805) 0.1μF ±10%, 50V X7R ceramic capacitor (0603) Unidirectional ESD protection diode (SOD323) ESD protection diode (SOT-23) 1A, 150V diode POWERDI®123 Dual switching common cathode diode 26-pin dual row (2x13) header (0.1in centers) 21 2-pin header (0.1in centers) 2 P1 1 P2, P3, P5, P6, P8,P9 6 R1 R2 R3-R15 R16-R27,R30,R80,R87R92,R96,R100,R102R104,R107,R113-R125 R28, R29, R56, R57, R60, R61, R64, R65, R75, R76 R32, R33, R34, R35 R36-R39, R79, R95, R105, R106, R111, R1016 R40, R62, R63, R66 R42-R53 R31, R41, R58, R59 R54, R55, R77, R78, R67, R68, R70, R72 R69, R71, R83-R86, R93, R94 R73, R74, R81, R82 R110 SW1 1 1 13 2-Line common-mode filter (SMD) 15-circuit CLIK-Mate vertical PCB receptacle, 1.50mm pitch 2-circuit CLIK-Mate vertical PCB receptacle, 1.50mm pitch 100Ω ±5% resistor (1206) 1kΩ ±5% resistor (0603) 1kΩ ±1%, resistor (0603) 39 12Ω, 0.5W resistor (1210) 10 10kΩ ±1%, resistor (0603) 4 150kΩ ±5% resistor (0402) 10 0Ω resistor (0603) 4 12 4 100kΩ ±5%, resistor (0603) 2.0kΩ ±0.1% resistor (0805) 100Ω ±1% resistor (1206) 8 26.1Ω ±1% resistor (1206) 8 4 1 1 0Ω resistor (1206) 1.5kΩ ±1% resistor (1206) 10.0Ω ±1% resistor (0805) 12-position SPST DIP switch www.maximintegrated.com MFG PART # C1608X7R1C474K GRM188R71C105K GRM32ER72A225K GRM32ER71H475KA88L MFG TDK MURATA MURATA MURATA GCM21BR72A104KA37L MURATA GCM21BR72A104KA37L MURATA GCM188R72A104KA64D MURATA GRM1555C1H101J MURATA GCM188R71E102K MURATA GRM31CR72A105K MURATA GCM1885C2A150J MURATA CGA5H4C0G2J222J TDK CGA4J3X7S2A474K/SOFT TDK GRM188R71H104K PESD5V0U1UA PESD1CAN DFLS1150-7 BAV70LT3 PEC36DAAN MURATA NXP NXP DIODES INC ON SULLINS PEC36SAAN SULLINS ACT45B-101-2P TDK 5025841570 MOLEX 5025840270 MOLEX CRCW251212R0F VISHAY/DALE ECG ERA-6YEB202V PANASONIC ERJ-6ENF10R0V CTS 206-12ST PANASONIC Maxim Integrated │  28 Evaluates: MAX17823H MAX17823H Evaluation System MAX17823H EV Kit Bill of Materials (continued) REF_DES DCIN, THRM, VDDL1, VDDL2, VDDL3, VDDL4, VAA, VAA, GPIO3_A, GPIO2_A, GPIO1_A, GPIO0_A, HV, TXUP, TXUN, RXUP, RXUN, TXUP_A, TXUN_A, RXUP_A, RXUN_A, TXLP, TXLN, RXLP, RXLN, TXLP_A, TXLN_A, RXLP_A, RXLN_A, /SHDNL\ AGND (x6) PACK+, PACK-, BAT0-BAT12, AGND U1 U2, U3 C4 C22 C28-C39, C65, C66, C85, C86, C87, C90, C91, C100, C101, C103 C61, C62, C92, C93 C80, C82, C94, C95 D3, D4, D5, D6 QTY MFG PART # MFG 30 Multipurpose test point, red 5010 KEYSTONE 6 5011 KEYSTONE 1 2 21 0 0 Multipurpose test point, black 20G tinned copper bus wire formed into “U” shaped loop (0.25” off the PC board) Daisy-chainable analog front end (64L LQFP) FMB3906A dual PNP SSOT-6 Shunt Not Installed, ceramic capacitor (2220) Not Installed, ceramic capacitor (1210) MAX17823HGCB/V+ FMB3906 STC02SYAN MAXIM FAIRCHILD SULLINS 0 Not Installed, ceramic capacitor (0603) 0 0 0 Not Installed, ceramic capacitor (0805) Not Installed, 3-terminal capacitor (0805) Not Installed, Zener diode (SOD123) Not Installed, unidirectional ESD protection diodes (SOD323) Not Installed, 100V, 1A Schottky diode (SOD123FL) 1A, 150V diode POWERDI®123 Not Installed, 16 -in receptacle (0.1in centers) Not Installed, 14-pin dual row shrouded (7x2) header (0.1 in centers) Not Installed, automotive common mode filter PESD5V0U1UA NXP MBR1H100SF ON DFLS1150-7 SSW-116-01-T-S DIODES INC SAMTEC SBH11-PBPC-D07-ST-BK SULLINS MMSZ5229BT1G Semiconductor S1B ON FAIRCHILD GRM32ER72A225K MURATA 16 D15-D26 0 D30, D31, D32, D33 0 D34 J1, J2, J3, J4 0 0 J6 0 L3, L4 R98, R99, R108, R109, R1014, R1015, R112 R97, R101 D8 D38 0 C26 0 Pack-out 2 www.maximintegrated.com DESCRIPTION 0 Not Installed, resistor (0603) 0 0 0 Not Installed, 0Ω resistor (1206) Not Installed 500mW, 4.3V Zener diode Not Installed 1A, 100V diode (SMA) Not Installed 2.2uF ±10%, 100V X7R ceramic capacitor (1210) CLIK-MATE crossover cable (2-wire) Rev 3 MAXCLICK-MATE Maxim Integrated │  29 www.maximintegrated.com 1 BGND JU19 0.1uF C1003 0.1uF C1002 0.1uF C1001 0 R1016 R1015 OPEN R1014 OPEN PACKP AGND BGND (AGND) PACK- PACK+ 2 AGND OPEN D34 BAT6 BAT12 BAT12 DCIN R112 OPEN AGND 100 R1 C26 OPEN R111 0 3 1 2 D29 OPEN D38 R2 1k C5 2.2uF 100V C23 4.7uF 50V HV AGND C4 OPEN AGND HV C21 1000pF SW0 C0 SW1 C1 SW2 C2 SW3 C3 SW4 C4 SW5 C5 SW6 C6 SW7 C7 SW8 C8 SW9 C9 SW10 C10 SW11 C11 SW12 C12 3 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 62 SHDNL AGND AGND C27 0.47uF 100V DCIN 61 60 NC60 SHDNL 2 1 HV 27 VBKLP 1% R110 10 26 NC27 NC19 NC26 1 19 NC1 SHDNL SW0 C0 SW1 C1 SW2 C2 SW3 C3 SW4 C4 SW5 C5 SW6 C6 SW7 C7 SW8 C8 SW9 C9 SW10 C10 SW11 C11 SW12 C12 VBLKP DCIN HV NC NC NC NC NC CPP 63 C24 0.1uF 100V U1 MAX17823H CPP 64 CPN PACKP RXLN RXLP TXLN TXLP AUXIN2 AUXIN1 THRM CTG AGND AGND AGND VAA GNDL2 GNDL3 GNDL1 NC VDDL2 VDDL3 VDDL1 GPIO3 GPIO2 GPIO1 GPIO0 RXUN RXUP TXUN TXUP 25 24 21 20 29 30 32 28 31 4 2 5 23 10 8 18 22 11 9 14 15 16 17 12 13 6 7 CPN TXUN 0 AGND RXLN RXLP TXLN TXLP 2 1 R29 10k 1% AGND AGND VAA 0 RXLN RXLP TXLN L1 AGND 2 1 1 1 D14 VAA D27 AUXIN2 3 4 AGND C3 1uF R106 0 R105 0 R95 AUXIN1 TXLP THRM VDDL4 VDDL2 VDDL3 VDDL1 D8 OPEN CTG JU0 C101 OPEN VDDL4 C85 OPEN VDDL2 C103 OPEN VDDL3 C65 OPEN VDDL1 RXUN RXUP AGND VAA AGND C20 100pF AGND C19 100pF AGND C18 100pF R79 AGND AGND C100 OPEN AGND C84 0.47uF AGND C102 0.47uF AGND C2 0.47uF RXUN RXUP TXUN TXUP TXUP AGND 2 2 C66 OPEN VAA AGND AGND 1 2 AGND AGND AGND AGND P8 JU1 2 1 R28 10k 1% L2 AGND 3 4 THRM 0 R39 AGND 0 R38 AGND 0 R37 0 R36 AGND AGND 2 1 AGND D3 OPEN GPIO3 D4 OPEN GPIO2 D5 OPEN GPIO1 D6 OPEN GPIO0 1 GPIO2_A 2 GPIO1_A 2 GPIO0_A JU3 JU18 2 2 GPIO3_A 1 2 P9 GPIO3 to SHDNL 1 JU16 JU15 1 JU17 2 1 1 1 2 SHDNL GPIO0 3 VAA VAA VAA VAA GPIO3 D28 R35 150k R34 150k R33 150k R32 150k AGND AGND SHDNL J6-14 J6-12 J6-10 J6-8 J6-6 J6-4 J6-2 J6-13 J6-11 J6-9 J6-7 J6-5 J6-3 J6-1 J6 OPEN AGND AGND THRM GPIO2 GPIO1 AUXIN2 AUXIN1 MAX17823H Evaluation System Evaluates: MAX17823H MAX17823H EV Kit Schematics Figure 20. MAX17823H EV Kit Schematic Page 1 Maxim Integrated │  30 www.maximintegrated.com RXUN RXUP TXUN TXUP AGND AGND C54 15pF C53 15pF C93 OPEN AGND C92 OPEN 0 R86 0 R85 R61 10k 1% R60 10k 1% R57 10k 1% R56 10k 1% VDDL3 100 1% R59 100 1% R58 VDDL3 1 2 D10 D9 2 2 3 D11 3 C95 OPEN C94 OPEN 3 SHORT (PC TRACE) 1 1 SHORT (PC TRACE) OPEN L3 AGND 3 4 R63 100k AGND R62 100k SHORT (PC TRACE) 2 1 SHORT (PC TRACE) R73 1.5k 1% R74 1.5k 1% TXUN 26.1 1% 26.1 1% VAA VAA R99 OPEN 3 2 1 C87 OPEN C86 OPEN R98 OPEN R72 1 2 26.1 1% R70 R68 26.1 1% R67 C57 AGND C83 C2 E1 C1 FMB3906A B2 E2 3 4 5 6 AGND 2200pF 630V U2 2200pF 630V C58 OPEN R97 2200pF 630V B1 D2 2200pF 630V C1 2 1 2 1 AGND TXUP AGND RXUN_A RXUP_A TXUN_A TXUP_A P3 P2 TXLN VAA VAA RXLN RXLP TXLN TXLP 3 2 1 U3 C2 E1 C1 FMB3906A B2 E2 B1 AGND C81 15pF AGND C79 15pF C62 OPEN AGND C61 OPEN 4 5 6 0 R94 0 R93 R76 10k 1% R75 10k 1% R65 10k 1% R64 10k 1% 100 1% R41 100 1% R31 VDDL2 D12 AGND TXLP AGND VDDL2 JU2 AGND 2 1 1 2 2 3 C82 OPEN C80 OPEN 3 2 1 SHORT (PC TRACE) D13 1 SHORT (PC TRACE) D1 OPEN L4 2 1 3 AGND SHORT (PC TRACE) 3 4 SHORT (PC TRACE) R66 100k AGND R40 100k 1.5k 1% R82 1.5k 1% R81 26.1 1% R55 26.1 1% R54 2 1 R77 D7 R109 OPEN C91 OPEN C90 OPEN R108 OPEN 26.1 1% R78 26.1 1% 0 R84 OPEN R101 0 R83 0 AGND AGND R71 3 0 R69 RXLN_A RXLP_A 1 2 TXLN_A TXLP_A 1 2 P6 P5 MAX17823H Evaluation System Evaluates: MAX17823H MAX17823H EV Kit Schematics (continued) Figure 21. MAX17823H EV Kit Schematic Page 2 Maxim Integrated │  31 P1 www.maximintegrated.com 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 AGND BAT0 BAT1 BAT2 BAT3 BAT4 BAT5 BAT6 BAT7 BAT8 BAT9 BAT10 BAT11 BAT12 PACKP PACKP PACKP AGND C22 OPEN D31 OPEN D30 OPEN 2 1 2 1 AGND BAT0 BAT0 BAT1 BAT1 2 1 JU14 BAT2 BAT2 BAT3 BAT3 BAT4 BAT4 BAT5 BAT5 BAT6 BAT6 BAT7 BAT7 BAT0 BAT8 BAT8 BAT9 BAT9 BAT10 BAT10 BAT11 BAT11 BAT12 BAT12 2 1 2 1 2 2 1 2 1 2 1 2 1 2 1 2 AGND 2 1 D16 OPEN D15 OPEN D33 OPEN AGND AGND D32 OPEN 2 1 OPEN D17 OPEN 2 1 D18 D19 OPEN 2 1 D20 OPEN D21 OPEN 2 1 D22 OPEN D23 OPEN D24 OPEN D25 OPEN 1 D26 OPEN 1 C67 0.1uF 100V C68 0.1uF 100V C69 0.1uF 100V C70 0.1uF 100V C71 0.1uF 100V C72 0.1uF 100V C73 0.1uF 100V C74 0.1uF 100V C75 0.1uF 100V C76 0.1uF 100V C77 0.1uF 100V C78 0.1uF 100V R125 R124 R30 R123 R122 R16 R121 R120 R17 R119 R118 R18 R117 R116 R19 R115 R114 R20 R113 R107 R21 R104 R103 R22 R102 R100 R23 R96 R92 R24 R91 R90 R25 R89 R88 R26 R87 R80 R27 12 12 12 12 12 12 12 12 12 12 12 12 12 12 12 12 12 12 12 12 12 12 12 12 12 12 12 12 12 12 12 12 12 12 12 12 12 12 12 AGND C39 OPEN AGND C38 OPEN AGND C37 OPEN AGND C36 OPEN AGND C35 OPEN AGND C34 OPEN AGND C33 OPEN AGND C32 OPEN AGND C31 OPEN AGND C30 OPEN AGND C29 OPEN AGND C28 OPEN 100V C40 1uF C52 0.1uF C51 0.1uF C50 0.1uF C49 0.1uF C48 0.1uF C47 0.1uF C46 0.1uF C45 0.1uF C44 0.1uF C43 0.1uF C42 0.1uF C41 0.1uF AGND SW0 SW0 SW1 SW1 SW2 SW2 SW3 SW3 SW4 SW4 SW5 SW5 SW6 SW6 SW7 SW7 SW8 SW8 SW9 SW9 SW10 SW10 SW11 SW11 SW12 R3 1k 1% R4 1k 1% R5 1k 1% R6 1k 1% R7 1k 1% R8 1k 1% R9 1k 1% R10 1k 1% R11 1k 1% R12 1k 1% R13 1k 1% R14 1k 1% 1% R15 1k C25 0.1uF 100V C6 0.1uF 100V C7 0.1uF 100V C8 0.1uF 100V C9 0.1uF 100V C10 0.1uF 100V C11 0.1uF 100V C12 0.1uF 100V C13 0.1uF 100V C14 0.1uF 100V C15 0.1uF 100V C16 0.1uF 100V C17 0.1uF 100V BGND AGND AGND BGND C0 C1 AGND BGND C2 AGND BGND C3 AGND BGND C4 AGND BGND C5 AGND BGND C6 AGND BGND C7 AGND BGND C8 AGND BGND C9 AGND BGND C10 AGND BGND C11 AGND BGND C12 J5-1 J5-3 J5-5 J5-7 J5-9 J5-11 J5-13 J5-15 J5-17 J5-19 J5-21 J5-23 J5-25 J5 J5-2 J5-4 J5-6 J5-8 J5-10 J5-12 J5-14 J5-16 J5-18 J5-20 J5-22 J5-24 J5-26 BAT0 BAT1 BAT2 BAT3 BAT4 BAT5 BAT6 BAT7 BAT8 BAT9 BAT10 BAT11 BAT12 BAT0 BAT1 BAT2 BAT3 BAT4 BAT5 BAT6 BAT7 BAT8 BAT9 BAT10 BAT11 BAT12 2 CELL2 1 2 CELL3 1 2 CELL4 1 2 CELL5 1 2 CELL6 1 2 CELL7 1 2 CELL8 1 2 CELL9 1 2 CELL10 1 2 CELL11 1 2 CELL12 1 1 2 3 4 5 6 7 8 9 10 11 12 SW1 SW1-A SW1-B SW1-C SW1-D SW1-E SW1-F SW1-G SW1-H SW1-I SW1-J SW1-K SW1-L 24 23 22 21 20 19 18 17 16 15 14 13 R53 2k 0.1% R52 2k 0.1% R51 2k 0.1% R50 2k 0.1% R49 2k 0.1% R48 2k 0.1% R47 2k 0.1% R46 2k 0.1% R45 2k 0.1% R44 2k 0.1% R43 2k 0.1% R42 2k 0.1% MAX17823H Evaluation System Evaluates: MAX17823H MAX17823H EV Kit Schematics (continued) Figure 22. MAX17823H EV Kit Schematic Page 3 Maxim Integrated │  32 www.maximintegrated.com 16 1 J1-16 J1-15 J1-14 J1-13 J1-12 J1-11 GPIO1 GPIO2 GPIO3 RXUP RXUN VDDL3 32 J2-16 J2-15 J2-14 J2-13 J2-12 J2-11 J2-10 AGND J2-8 J2-7 J2-6 J2-5 J2-4 J2-3 J2-2 J2-1 J1-10 VDDL1 VAA 17 J2-9 AGND TXUP TXUN AGND SHDNL AGND NC1 OPEN J2 J1-9 J1-8 J1-7 J1-6 J1-5 J1-4 J1-3 J1-2 J1-1 OPEN J1 THRM AGND AUXIN1 AUXIN2 CTG NC27 NC26 RXLN RXLP AGND TXLN TXLP NC19 GPIO0 VDDL2 VDDL4 48 33 J3 J3-16 J3-15 J3-14 J3-13 J3-12 J3-11 J3-10 J3-9 J3-8 J3-7 J3-6 J3-5 J3-4 J3-3 J3-2 J3-1 OPEN C7 SW7 C6 SW6 C5 SW5 C4 SW4 C3 SW3 C2 SW2 C1 J4-16 J4-15 J4-14 J4-13 J4-12 J4-11 J4-10 J4-9 J4-8 J4-7 J4-6 J4-5 J4-4 J4-3 SW1 J4-1 J4-2 64 49 C0 SW0 J4 OPEN CPN CPP DCIN NC60 VBKLP C12 SW12 C11 SW11 C10 SW10 C9 SW9 C8 SW8 HV MAX17823H Evaluation System Evaluates: MAX17823H MAX17823H EV Kit Schematics (continued) Figure 23. MAX17823H EV Kit Schematic Page 4 Maxim Integrated │  33 MAX17823H Evaluation System Evaluates: MAX17823H MAX17823H EV Kit PCB Layouts 1” Figure 24. MAX17823H EV Kit PCB Top Layer Silkscreen www.maximintegrated.com Maxim Integrated │  34 MAX17823H Evaluation System Evaluates: MAX17823H MAX17823H EV Kit PCB Layouts (continued) 1” Figure 25. MAX17823H EV Kit PCB Top Layer Metal www.maximintegrated.com Maxim Integrated │  35 MAX17823H Evaluation System Evaluates: MAX17823H MAX17823H EV Kit PCB Layouts (continued) 1” Figure 26. MAX17823H EV Kit PCB Layer Two Metal www.maximintegrated.com Maxim Integrated │  36 MAX17823H Evaluation System Evaluates: MAX17823H MAX17823H EV Kit PCB Layouts (continued) 1” Figure 27. MAX17823H EV Kit PCB Layer Three Metal www.maximintegrated.com Maxim Integrated │  37 MAX17823H Evaluation System Evaluates: MAX17823H MAX17823H EV Kit PCB Layouts (continued) 1” Figure 28. MAX17823H EV Kit PCB Bottom Layer Metal www.maximintegrated.com Maxim Integrated │  38 MAX17823H Evaluation System Evaluates: MAX17823H MAX17823H EV Kit PCB Layouts (continued) 1” Figure 29. MAX17823H EV Kit PCB Bottom Layer Silkscreen www.maximintegrated.com Maxim Integrated │  39 Evaluates: MAX17823H MAX17823H Evaluation System Revision History REVISION NUMBER REVISION DATE 0 4/19 Initial Release 1 5/19 Updated Ordering Information section DESCRIPTION PAGES CHANGED 27 For pricing, delivery, and ordering information, please visit Maxim Integrated’s online storefront at https://www.maximintegrated.com/en/storefront/storefront.html. Maxim Integrated cannot assume responsibility for use of any circuitry other than circuitry entirely embodied in a Maxim Integrated product. No circuit patent licenses are implied. Maxim Integrated reserves the right to change the circuitry and specifications without notice at any time. Maxim Integrated and the Maxim Integrated logo are trademarks of Maxim Integrated Products, Inc. © 2019 Maxim Integrated Products, Inc. │  40