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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
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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.
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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.
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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
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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
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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
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Figure 6. Enables Tab After Executing Set All
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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
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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
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MAX17823H Evaluation System
Evaluates: MAX17823H
Figure 8. MAX17823H Evaluation Kit Software (Thresholds Tab)
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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)
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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)
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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)
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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)
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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
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MAX17823H Evaluation System
Evaluates: MAX17823H
Figure 13. MAX17823H Evaluation Kit Software (Configuration Tab)
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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)
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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)
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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.
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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
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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.
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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
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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.
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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
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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.
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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.
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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.
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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
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