Texas Instruments bq2023EVM-001 Скачать руководство пользователя страница 12

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Pin Descriptions

2-2

2.1

Pin Descriptions

BAT+

cell positive

BAT–

cell negative

PACK+

pack positive

PACK–

pack negative

SDQ

serial communications port

PDET

pack removal detection

STAT

status output

2.2

Schematic

Figure 2–1 is the schematic diagram for the bq2023EVM–001 circuit module
(SLUP142–001).

Figure 2–1. Schematic

PACK+

BAT+

R2
100 k

Ω

BQ2023PW

R10
100

Ω

RBI

STAT

VCC

SRP

VSS

SRN

SDQ

PDET

100 k

Ω

PACK–

BAT–

SDQ

5.6 V

R8
0.02

Ω

C3
0.1

100 k

Ω

C2
0.1

R11

100

Ω

0.1

C1
0.1

1 M

Ω

STAT

PDET

100

Ω

100

Ω

100

Ω

100

Ω

5.6 V

Optional Components

Содержание bq2023EVM-001

Страница 1: ... May 2002 High Performance Analog Products User s Guide SLUU112 ...

Страница 2: ...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...

Страница 3: ... 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 A...

Страница 4: ...ut 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 trans...

Страница 5: ...e limits of com puting devices pursuant to subpart J of part 15 of FCC rules which are designed to provide rea sonable protection against radio frequency interference Operation of this equipment in other en vironments may cause interference with radio communications in which case the user at his own expense will be required to take whatever measures may be required to correct this interference ...

Страница 6: ...vi ...

Страница 7: ...VM Hardware and Software Setup 3 1 3 1 Software Installation 3 2 3 2 Hardware Connection 3 2 3 2 1 Connecting the Circuit Module to a Battery Pack 3 2 3 2 2 PC Interface Connection 3 3 4 Operation 4 1 4 1 Starting the Program 4 2 4 2 Initialization 4 3 4 2 1 Setting the Programmable bq2023 Wake Up Threshold Option 4 3 4 2 2 Register Clearing 4 3 4 3 Reading and Writing Flash Memory 4 3 4 3 1 The F...

Страница 8: ... Load Charger 3 2 4 1 Initial Data Screen 4 2 4 2 Communications Comm Port Selection Warning Screen 4 2 4 3 Flash Register Screen 4 4 4 4 RAM Register Screen 4 5 Tables 1 1 Ordering Information 1 2 2 1 Bill of Materials 2 5 2 2 Performance Specifications Summary 2 5 3 1 Connection to EV2201 3 3 ...

Страница 9: ...er critical parameters in a one cell Li Ion battery pack or a battery pack of any chemistry with a voltage of 2 8 5 5 V The circuit module connects directly across the cell s in the battery With the EV2201 interface board and software the user can read the bq2023 data registers and evaluate the functions of the bq2023 under different charge and discharge conditions Topic Page 1 1 Features 1 2 1 2 ...

Страница 10: ...gging for system analysis 1 2 Kit Contents bq2023 circuit module with sense resistor EV2201 PC interface board Set of evaluation software disks entitled EV2201 23 PC serial cable Set of support documentation 1 3 Ordering Information Table 1 1 Ordering Information EVM Part Number Additional ICs Chemistry Pack Voltage Capacity bq2023EVM 001 None All 2 8 5 5 V Any bq2023EVM 002 UCC3952 Li Ion 2 8 4 2...

Страница 11: ... necessary to accurately monitor the charge and discharge of one Li Ion cell or a battery pack of any chemistry with a voltage of 2 8 5 5 V Terminal blocks on the circuit module provide direct connection to the cell s BAT BAT and the serial communications port SDQ The system load and charger connect across PACK and PACK Topic Page 2 1 Pin Descriptions 2 2 2 2 Schematic 2 2 2 3 Board Layout 2 3 2 4...

Страница 12: ...re 2 1 is the schematic diagram for the bq2023EVM 001 circuit module SLUP142 001 Figure 2 1 Schematic J1 1 2 PACK BAT R2 100 kΩ U1 BQ2023PW R10 100 Ω RBI STAT VCC SRP VSS SRN SDQ PDET 8 1 7 2 6 3 5 4 R7 100 kΩ PACK BAT J3 1 2 J4 2 1 SDQ D3 5 6 V R8 0 02 Ω C3 0 1 µF R9 100 kΩ C2 0 1 µF R11 100 Ω C4 0 1 µF C1 0 1 µF R1 1 MΩ STAT PDET R4 100 Ω R3 100 Ω R6 100 Ω R5 100 Ω D1 5 6 V D2 5 6 V J2 1 2 Optio...

Страница 13: ...Board Layout 2 3 Circuit Module 2 3 Board Layout Figure 2 2 shows the PCB layers and assembly drawing for the bq2023EVM 001 circuit module SLUP142 001 Figure 2 2 Board Layout Top Layer Silk 1 Layer 1 ...

Страница 14: ...Board Layout 2 4 Figure 2 2 Board Layout continued Layer 2 Mask 1 Mask 2 ...

Страница 15: ... 603 R1 1 Resistor 1 MΩ 1 16 W 5 Panasonic ERJ 3GSYJ105 603 D1 D2 D3 3 Diode Zener 5 6 V Zetex BZX84C5V6 SOT 23 U1 1 Integrated circuit gas gauge bq2023 Benchmarq TI bq2023PW TSSOP 8 Component count 24 Assembly Notes 1 This assembly is ESD sensitive 2 This assembly shall 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 i...

Страница 16: ...2 6 ...

Страница 17: ...are and Software Setup This section describes how to install the bq2023EVM 001 PC software and how to connect the components of the EVM Topic Page 3 1 Software Installation 3 2 3 2 Hardware Connection 3 2 Chapter 3 ...

Страница 18: ...pplication group 3 2 Hardware Connection There are three hardware components to the bq2023EVM 001 1 bq2023EVM 001 circuit module 2 EV2201 PC interface board 3 PC 3 2 1 Connecting the Circuit Module to a Battery Pack Figure 3 1 shows how to connect the bq2023EVM 001 circuit module to a stack of cells the sense resistor and the system load charger Figure 3 1 Connection to Cells and System Load Charg...

Страница 19: ...ce to the PC 1 Connect the bq2023 based smart battery to the EV2201 using wire leads as in Table 3 1 2 Connect the PC serial cable to the EV2201 and the PC COM port Table 3 1 Connection EV2201 bq2023 Based Battery EV2201 SDQ SMBD HDQ1 PACK VSS The bq2023EVM 001 is now set up for operation ...

Страница 20: ...3 4 ...

Страница 21: ...This chapter details the operation of the or bq2023EVM 001 software Topic Page 4 1 Starting the Program 4 2 4 2 Initialization 4 3 4 3 Reading and Writing Flash Memory 4 3 4 4 RAM Addressing 4 5 4 5 Data Logging 4 6 Chapter 4 ...

Страница 22: ...oads and displays the initial data screen Figure 4 1 Initial Data Screen The data screen may not show correct information until parameters in the soft ware are initialized If the EV2201 is connected to PC com port 2 or no port the program displays a warning Once OK is clicked the program loads the initial register screen The com port can be changed by selecting the port under the Options menu Figu...

Страница 23: ...ading and Writing Flash Memory The flash memory on the bq2023 can store battery pack specific parameters used by the host system in its capacity monitoring algorithm To read the flash memory click on the Flash button to select the flash data screen Click the Read Flash button to read all six flash pages or click the individual page number to read the pages individually Each flash location can be m...

Страница 24: ...Flash Memory 4 4 Figure 4 3 Flash Register Screen 4 3 1 The FED Register The FED register can be used to permanently disable erase and write access to each page of flash Click the Modify FED button to access this register ...

Страница 25: ...l location and entering the 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 RAM file is loaded into the program the Write RAM button can be used to store the data in the bq2023 F...

Страница 26: ...readsheet or word processor program Example data log EV2201 23 Version 1 0 0 Texas Instruments bq2023 battery monitor 06 04 2001 2 40 35 PM ROM ID 74 50 01 10 B2 03 00 B Sample Stamp Elapsed s DCR CCR SCR DTC CTC MODE WOE CLR TEMP 1 2 40 45 PM 10 0 0 0 0 16 78 192 1186 2 2 40 55 PM 20 0 0 0 0 26 78 192 1186 3 2 41 05 PM 30 0 0 0 0 37 78 192 1187 4 2 41 15 PM 40 5 0 0 4 44 78 192 1187 5 2 41 25 PM ...

Страница 27: ...Mouser Electronics Authorized Distributor Click to View Pricing Inventory Delivery Lifecycle Information Texas Instruments BQ2023EVM 001 ...

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