Texas Instruments bq26220EVM-001 User Manual Download Page 10 | Manualshive

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SLUU151 – April 2003

10

bq26220EVM-001 Single Cell Battery Monitor Evaluation Module

3.2.2

PC Interface Connection

The following steps configure the hardware for interface to the PC:

1.

Connect bq26220EVM–001 to the EV2200 using wire leads as in the following table.

Table 4. Circuit Module-to-EV2200 Connection

bq26220 Based Battery

EV2200

HDQ

SMBD/HDQ1

PACK–

VSS

2.

Connect the PC serial cable to the EV2200 and the PC COM port.

The bq26220EVM-001 is now set up for operation.

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Summary of Contents for bq26220EVM-001

Page 1: ...User s Guide 1 User s Guide ...

Page 2: ...e handling or use of the goods Please be aware that the products received may not be regulatory compliant or agency certified FCC UL CE etc Due to the open construction of the product it is the user s responsibility to take any and all appropriate precautions with regard to electrostatic discharge EXCEPT TO THE EXTENT OF THE INDEMNITY SET FORTH ABOVE NEITHER PARTY SHALL BE LIABLE TO THE OTHER FOR ...

Page 3: ...put If there is uncertainty as to the load specification please contact a TI field representative During normal operation some circuit components may have case temperatures greater than 70 C The EVM is designed to operate properly with certain components above 70 C as long as the input and output ranges are maintained These components include but are not limited to linear regulators switching tran...

Page 4: ... The circuit module connects directly across the cell in a battery With the EV2200 interface board and software the user can read the bq26220 data registers and evaluate the functions of the bq26220 under different charge and discharge conditions 1 1 Features The following list highlights some of the features of the bq26220 single cell battery monitor Complete evaluation system for the bq26220 bat...

Page 5: ...ommunications port HDQ The system load and charger connect across PACK and PACK 2 1 Pin Descriptions BAT PACK Cell positive pack positive BAT Cell negative PACK Pack negative HDQ Serial communications port STAT Status output GPIO Programmable input output port 2 2 Circuit Module Schematic The schematic shows the circuit for the bq26220EVM 001 implementation 2 2 1 Schematic Figure 1 is the bq26220E...

Page 6: ...dule 2 3 Circuit Module Physical Layouts This section contains the board layout and assembly drawings for the bq26220EVM 001 circuit module SLUP165 2 3 1 Board Layout Figure 2 shows the PCB layers and assembly drawing for the circuit module Figure 2 Top Assembly Figure 3 Silk 1 ...

Page 7: ...SLUU151 April 2003 7 bq26220EVM 001 Single Cell Battery Monitor Evaluation Module Figure 4 Layer 1 Figure 5 Layer 2 ...

Page 8: ... D2 2 Diode zener 5 6 V Zetex BZX84C5V6 SPT 23 U1 1 Integrated circuit gas gauge bq26220PW TI bq26220PW TSSOP 8 Component count 16 Assembly Notes 1 This assembly is ESD sensitive 2 This assembly must comply with IPC A 610 class 2 or better 3 This assembly must be clean of flux residues and contaminants 4 Use of no clean flux is not acceptable 2 5 Performance Specification Summary This section summ...

Page 9: ...the Setup exe icon 4 The setup program prompts for the remaining disks and installs a Windows application group 3 2 Hardware Installation There are three hardware components to the bq26220EVM 001 1 The bq26220EVM 001 circuit module 2 The EV2200 PC interface board 3 The PC 3 2 1 Connecting the bq26220EVM 001 Circuit Module to a Battery Pack Figure 6 shows how to connect the bq26220EVM 001 circuit m...

Page 10: ...configure the hardware for interface to the PC 1 Connect bq26220EVM 001 to the EV2200 using wire leads as in the following table Table 4 Circuit Module to EV2200 Connection bq26220 Based Battery EV2200 HDQ SMBD HDQ1 PACK VSS 2 Connect the PC serial cable to the EV2200 and the PC COM port The bq26220EVM 001 is now set up for operation ...

Page 11: ...he software defaults to PC Com port 1 for communication If the EV2200 is connected to Com port 1 the program should load and display the initial data screen Figure 7 Internal Register Screen If the EV2200 is connected to PC Com port 2 or no port the program displays a blank screen in Binary Hex Dec and Total Decimal columns Once the appropriate Com Port is selected the program loads the initial re...

Page 12: ...ion 0x64 This designates the potential across the sense resistor below which the bq26220 goes to sleep 4 2 1 2 GPIO and STAT Boxes To configure the GPIO pin as input or output click on the GPIO box at 0x64 location To turn off the GPIO as ouput set the GPIO pin by clicking the STAT box at the 0x64 location To reset click the box again 4 2 2 Register Clearing Each counter in the bq26220 can be clea...

Page 13: ...l flash pages or click on the individual page number to read the pages individually Each flash location can be modified by clicking on the individual location and entering the new value in hex The flash values can be stored to disk as one data file To do this select File Save Flash File and enter the file name in the Store Flash File window The file can subsequently be opened using the the File Op...

Page 14: ...e new value in hex The RAM values can be stored to disk as one data file To do this select File Save RAM File and enter the file name in the Store Ram File window The file can subsequently be opened using the the File Open Ram File command from the pulldown menu Once the FLASH file is loaded into the program the Write RAM button can be used to store the data in the bq26220 On this screen two other...

Page 15: ... editor spreadsheet or word processor program Example data log EV2200 26220 Version 0 0 1 Texas Instruments bq26220 battery monitor 5 6 02 3 04 23 PM ROM ID 32 8C 00 02 01 11 00 26 Sample Stamp Elapsed s DCR CCR SCR DTC CTC MODE WOE CLR TEMP 1 3 04 33 PM 10 27 3 0 2008 955 78 96 297 2 3 04 43 PM 20 27 3 0 2008 955 78 96 297 3 3 04 53 PM 30 27 3 0 2008 955 78 96 297 4 3 05 03 PM 40 27 3 0 2008 955 ...

Page 16: ...nt that any license either express or implied is granted under any TI patent right copyright mask work right or other TI intellectual property right relating to any combination machine or process in which TI products or services are used Information published by TI regarding third party products or services does not constitute a license from TI to use such products or services or a warranty or end...

Page 17: ...Mouser Electronics Authorized Distributor Click to View Pricing Inventory Delivery Lifecycle Information Texas Instruments BQ26220EVM 001 ...

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