DS2781K Maxim Integrated, DS2781K Datasheet
DS2781K
Related parts for DS2781K
DS2781K Summary of contents
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Rev 9/09 www.maxim-ic.com FEATURES Demonstrates the capabilities of the DS2781 Standalone Fuel Gauge, including: Estimation of available capacity for Li+ cells Voltage measurement Current measurement Current accumulation Temperature measurement Information storage ...
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The evaluation board circuit is designed to provide the DS2781 with accurate parameter measurements. Kit demonstration boards will vary as they are improved upon over time. SETUP AND INSTALLATION BOARD CONNECTIONS Connections to the TSSOP demonstration board are best made ...
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... Follow the prompts to complete the installation. The DS2781 EV kit software can be uninstalled in the Add/Remove Programs tool in the Control Panel. After the installation is complete, open the DS2781K folder and run DS2781K.EXE or select DS2781K from the program menu. A splash screen containing information about the evaluation kit appears as the program is being loaded ...
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REGISTERS MENU The Registers Menu gives immediate access to all four status and function registers of the DS2781. Selecting any of the registers will open an individual control window giving the user a description of each register bit and the ...
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PREFERENCES MENU The Preferences Menu allows the user to change COM port settings at any time. Edit Preferences opens the Select Preferences window. See Selecting the communication port above. HELP MENU Selecting the About topic from the Help Menu will ...
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Parametric Data Tab The Parametric Data Sub Tab displays the latest real-time measurements of cell voltage, temperature, current and accumulated charge with both analog meter readouts and digital values. The sense resistor value used to calculate the current reading is ...
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Set Accumulated Current Register The user can bring up the Set Accumulated Current Register window by left clicking the Set ACR button. This window allows the user to enter a value for the Accumulated Current Register in mAH. Set Accumulation ...
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Fuel Gauge Data Tab The Fuel Gauge Data Sub Tab displays the latest fuel gauge calculations. The Full, Active Empty, and Standby Empty levels are calculated from the data input on the Parameters Tab. The Remaining Active Absolute Capacity (RAAC) ...
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PARAMETERS TAB The Parameters Tab gives the user access to the entire Parameter EEPROM memory block (block 1, addresses 60h-7Fh) in terms of Application Units and Device Units. The Application Units Tab displays the parameters in units like mA, mAhrs, ...
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Device Units Tab The Device Units Sub Tab is read-only. It displays the actual hexadecimal values read from the DS2781 and displays the units that are stored in the device ...
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MEMORY TAB The Memory Tab gives the user access to all 32 bytes of SRAM and all 48 bytes of EEPROM inside the DS2781. They are separated into four sub-tabs for convenience. Any value can be modified by clicking in ...
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... The Log to File Sub Tab contains control information for storing all data to an ASCII file. The default filename is c:\DS2781K_datalog.txt, but can be modified in the filename text field. The Log Data button toggles data logging off and on. Data will be stored at the same interval selected for updating the graphs in the tab-delimited format of “ ...
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... REVISION HISTORY REVISION DATE 9/09 Changed the part number from DS2781K to DS2781EVKIT+. DESCRIPTION PAGES CHANGED All ...