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bq25970 PWR893 Evaluation Module

User's Guide

Literature Number: SLUUBR4A

February 2018 – Revised December 2018

Содержание bq25970

Страница 1: ...bq25970 PWR893 Evaluation Module User s Guide Literature Number SLUUBR4A February 2018 Revised December 2018...

Страница 2: ...et EVM Label Variant bq25970 SLUSD72A BQ25970EVM 893 001 The bq2597x evaluation module EVM is a complete charger module for evaluating the highly integrated battery switch in WCSP package for 1 cell L...

Страница 3: ...10 ADDRMS pin selection for parallel configuration not installed installed JP11 I2C pull up selection installed installed JP12 SDA and SCL pull up selection installed installed JP13 TSBUS_M connection...

Страница 4: ...0 V 0 to 8 A or higher or equivalent NOTE If there is no display of current and voltage in this electronic load a separate current meter and a separate voltage meter are required to measure the output...

Страница 5: ...nt limit and then turn off the supply 2 Connect the output of PS to J1 VAC and GND as shown in Figure 1 3 Turn on the battery simulator set to constant voltage mode and output to 3 6 V Turn off disabl...

Страница 6: ...udio Select Charger and bq25970 evaluation software The main window of the software is shown in Figure 3 Figure 3 Select Charger in bqStudio Window 2 3 Test Procedure The steps for the test procedure...

Страница 7: ...elect Field View specify correct device I2C Address as defined in the datasheet such as CC 66 and so forth 3 Click the Read button Device ACK OK should appear 4 In the EVM software make the following...

Страница 8: ...should be two times of the input current 3 Change charge current By increasing the input voltage the input current should increase together with the output current The output current should always be...

Страница 9: ...of Materials 9 SLUUBR4A February 2018 Revised December 2018 Submit Documentation Feedback Copyright 2018 Texas Instruments Incorporated bq25970 PWR893 Evaluation Module Figure 6 BQ25970EVM 893 Mid La...

Страница 10: ...ls www ti com 10 SLUUBR4A February 2018 Revised December 2018 Submit Documentation Feedback Copyright 2018 Texas Instruments Incorporated bq25970 PWR893 Evaluation Module Figure 8 BQ25970EVM 893 Mid L...

Страница 11: ...aterials 11 SLUUBR4A February 2018 Revised December 2018 Submit Documentation Feedback Copyright 2018 Texas Instruments Incorporated bq25970 PWR893 Evaluation Module Figure 10 BQ25970EVM 893 Bottom La...

Страница 12: ...ommodate for high current 2 Minimize losses through connectors wherever possible as the losses in these connectors will contribute a significant amount to the total power loss 3 Use vias under the exp...

Страница 13: ...4A February 2018 Revised December 2018 Submit Documentation Feedback Copyright 2018 Texas Instruments Incorporated bq25970 PWR893 Evaluation Module 3 2 Schematic Figure 13 and Figure 14 illustrate the...

Страница 14: ...Bill of Materials www ti com 14 SLUUBR4A February 2018 Revised December 2018 Submit Documentation Feedback Copyright 2018 Texas Instruments Incorporated bq25970 PWR893 Evaluation Module Figure 14 bq25...

Страница 15: ...3 81 mm TH 1727010 Phoenix Contact J3 1 Header 100 mil 4x1 R A TH 22 05 3041 Molex JP1 JP2 JP3 JP4 JP5 5 Header 2 54 mm 3x1 Tin TH TSW 103 07 T S Samtec JP6 JP8 JP9 JP10 JP11 JP12 JP13 JP14 JP15 JP16...

Страница 16: ...Multipurpose White TH 5012 Keystone TP50 1 Test Point Compact Orange TH 5008 Keystone U1 U2 2 97 Efficient 8A Switched Cap Battery Charger with Integrated Protection I2C Programmability and ADC YFF00...

Страница 17: ...Documentation Feedback Copyright 2018 Texas Instruments Incorporated Revision History Revision History NOTE Page numbers for previous revisions may differ from page numbers in the current version Chan...

Страница 18: ...set forth above or credit User s account for such EVM TI s liability under this warranty shall be limited to EVMs that are returned during the warranty period to the address designated by TI and that...

Страница 19: ...the antenna types listed in the user guide with the maximum permissible gain and required antenna impedance for each antenna type indicated Antenna types not included in this list having a gain great...

Страница 20: ...t the EVM user guide prior to connecting any load to the EVM output If there is uncertainty as to the load specification please contact a TI field representative During normal operation even with the...

Страница 21: ...OST OF REMOVAL OR REINSTALLATION ANCILLARY COSTS TO THE PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES RETESTING OUTSIDE COMPUTER TIME LABOR COSTS LOSS OF GOODWILL LOSS OF PROFITS LOSS OF SAVINGS LOSS OF...

Страница 22: ...e resources are subject to change without notice TI grants you permission to use these resources only for development of an application that uses the TI products described in the resource Other reprod...