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4

4

EVM Use Restrictions and Warnings:

4.1 EVMS ARE NOT FOR USE IN FUNCTIONAL SAFETY AND/OR SAFETY CRITICAL EVALUATIONS, INCLUDING BUT NOT

LIMITED TO EVALUATIONS OF LIFE SUPPORT APPLICATIONS.

4.2 User must read and apply the user guide and other available documentation provided by TI regarding the EVM prior to handling

or using the EVM, including without limitation any warning or restriction notices. The notices contain important safety information
related to, for example, temperatures and voltages.

4.3

Safety-Related Warnings and Restrictions:

4.3.1

User shall operate the EVM within TI’s recommended specifications and environmental considerations stated in the user
guide, other available documentation provided by TI, and any other applicable requirements and employ reasonable and
customary safeguards. Exceeding the specified performance ratings and specifications (including but not limited to input
and output voltage, current, power, and environmental ranges) for the EVM may cause personal injury or death, or
property damage. If there are questions concerning performance ratings and specifications, User should contact a TI
field representative prior to connecting interface electronics including input power and intended loads. Any loads applied
outside of the specified output range may also result in unintended and/or inaccurate operation and/or possible
permanent damage to the EVM and/or interface electronics. Please consult 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 inputs and outputs kept within the specified allowable ranges, some circuit
components may have elevated case temperatures. These components include but are not limited to linear regulators,
switching transistors, pass transistors, current sense resistors, and heat sinks, which can be identified using the
information in the associated documentation. When working with the EVM, please be aware that the EVM may become
very warm.

4.3.2

EVMs are intended solely for use by technically qualified, professional electronics experts who are familiar with the
dangers and application risks associated with handling electrical mechanical components, systems, and subsystems.
User assumes all responsibility and liability for proper and safe handling and use of the EVM by User or its employees,
affiliates, contractors or designees. User assumes all responsibility and liability to ensure that any interfaces (electronic
and/or mechanical) between the EVM and any human body are designed with suitable isolation and means to safely
limit accessible leakage currents to minimize the risk of electrical shock hazard. User assumes all responsibility and
liability for any improper or unsafe handling or use of the EVM by User or its employees, affiliates, contractors or
designees.

4.4 User assumes all responsibility and liability to determine whether the EVM is subject to any applicable international, federal,

state, or local laws and regulations related to User’s handling and use of the EVM and, if applicable, User assumes all
responsibility and liability for compliance in all respects with such laws and regulations. User assumes all responsibility and
liability for proper disposal and recycling of the EVM consistent with all applicable international, federal, state, and local
requirements.

5.

Accuracy of Information:

To the extent TI provides information on the availability and function of EVMs, TI attempts to be as accurate

as possible. However, TI does not warrant the accuracy of EVM descriptions, EVM availability or other information on its websites as
accurate, complete, reliable, current, or error-free.

6.

Disclaimers:

6.1 EXCEPT AS SET FORTH ABOVE, EVMS AND ANY MATERIALS PROVIDED WITH THE EVM (INCLUDING, BUT NOT

LIMITED TO, REFERENCE DESIGNS AND THE DESIGN OF THE EVM ITSELF) ARE PROVIDED "AS IS" AND "WITH ALL
FAULTS." TI DISCLAIMS ALL OTHER WARRANTIES, EXPRESS OR IMPLIED, REGARDING SUCH ITEMS, INCLUDING BUT
NOT LIMITED TO ANY EPIDEMIC FAILURE WARRANTY OR IMPLIED WARRANTIES OF MERCHANTABILITY OR FITNESS
FOR A PARTICULAR PURPOSE OR NON-INFRINGEMENT OF ANY THIRD PARTY PATENTS, COPYRIGHTS, TRADE
SECRETS OR OTHER INTELLECTUAL PROPERTY RIGHTS.

6.2 EXCEPT FOR THE LIMITED RIGHT TO USE THE EVM SET FORTH HEREIN, NOTHING IN THESE TERMS SHALL BE

CONSTRUED AS GRANTING OR CONFERRING ANY RIGHTS BY LICENSE, PATENT, OR ANY OTHER INDUSTRIAL OR
INTELLECTUAL PROPERTY RIGHT OF TI, ITS SUPPLIERS/LICENSORS OR ANY OTHER THIRD PARTY, TO USE THE
EVM IN ANY FINISHED END-USER OR READY-TO-USE FINAL PRODUCT, OR FOR ANY INVENTION, DISCOVERY OR
IMPROVEMENT, REGARDLESS OF WHEN MADE, CONCEIVED OR ACQUIRED.

7.

USER'S INDEMNITY OBLIGATIONS AND REPRESENTATIONS.

USER WILL DEFEND, INDEMNIFY AND HOLD TI, ITS

LICENSORS AND THEIR REPRESENTATIVES HARMLESS FROM AND AGAINST ANY AND ALL CLAIMS, DAMAGES, LOSSES,
EXPENSES, COSTS AND LIABILITIES (COLLECTIVELY, "CLAIMS") ARISING OUT OF OR IN CONNECTION WITH ANY
HANDLING OR USE OF THE EVM THAT IS NOT IN ACCORDANCE WITH THESE TERMS. THIS OBLIGATION SHALL APPLY
WHETHER CLAIMS ARISE UNDER STATUTE, REGULATION, OR THE LAW OF TORT, CONTRACT OR ANY OTHER LEGAL
THEORY, AND EVEN IF THE EVM FAILS TO PERFORM AS DESCRIBED OR EXPECTED.

Summary of Contents for BMS027

Page 1: ...and evaluation module are synonymous with the BQ25790 EVM Contents 1 Introduction 2 2 Test Setup and Results 5 3 PCB Layout Guidelines 9 4 Board Layout Schematic and Bill of Materials 10 List of Figur...

Page 2: ...esolution Support for 3 6 V to 24 V Wide Range of Input Sources USB Auto Detect USB PD and Wireless Input Dual Input Source Selector to Drive Bi Directional Blocking NFETs Power up USB Port from Batte...

Page 3: ...C1 to connect the USB input to the priority input rail USB_VIN to VAC1 JP8 Charger D and D pin short connection Connect this to simulate a DCP type adapter for the input source detection and handshake...

Page 4: ...OG pin setting for 3S 750 kHz Connect to configure charger default setting to 3S charge regulation voltage 1 A charging current and 750 kHz switching frequency Not Installed JP30 PROG pin setting for...

Page 5: ...nging Current meters add significant series resistance which affects charger performance 5 Computer A computer with at least one USB port and a USB cable A valid internet connection is required when u...

Page 6: ...VM product file at www ti com or request the file via e2e ti com The file must be saved into C XXX BatteryManagementStudio config where XXX is the directory you selected to install BQSTUDIO 2 4 Test P...

Page 7: ...5 0 001110 to set the minimum system voltage to 7000 mV REG01b 10 0 00111000010 to set the maximum constant voltage CV charging regulation limit to 8400 mV REG03b 8 0 001100100 to set the maximum con...

Page 8: ...e status fault and interrupt bits report are helpful debug tools 2 4 4 OTG Mode Verification Use the following steps for OTG mode verification for boost operation 1 Power up then turn off Load 2 outpu...

Page 9: ...itors C3 and C13 to SW as close as possible to their respective pins only using vias for 1 side of each component if necessary 4 Place high frequency decoupling capacitors for VBUS and BAT pins as clo...

Page 10: ...2020 Submit Documentation Feedback Copyright 2020 Texas Instruments Incorporated BQ25790EVM BMS027 Evaluation Module User s Guide 4 Board Layout Schematic and Bill of Materials 4 1 Board Layout Figure...

Page 11: ...hematic and Bill of Materials 11 SLUUC51A June 2020 Revised July 2020 Submit Documentation Feedback Copyright 2020 Texas Instruments Incorporated BQ25790EVM BMS027 Evaluation Module User s Guide Figur...

Page 12: ...Bill of Materials www ti com 12 SLUUC51A June 2020 Revised July 2020 Submit Documentation Feedback Copyright 2020 Texas Instruments Incorporated BQ25790EVM BMS027 Evaluation Module User s Guide Figur...

Page 13: ...ic and Bill of Materials 13 SLUUC51A June 2020 Revised July 2020 Submit Documentation Feedback Copyright 2020 Texas Instruments Incorporated BQ25790EVM BMS027 Evaluation Module User s Guide Figure 5 B...

Page 14: ...BATN CE TS IBAT STAT QON INT PG PROG ILIM_HIZ TP39 TP40 TP41 PULLUP TP42 SCL SDA TP43 TP44 TP45 TP46 TP47 TP49 AGND PGND PGND PGND AGND AGND TP50 TP51 VIN1 GND 0 01 R2 100k R7 DNP 1nF C5 1uF C1 DNP 0...

Page 15: ...5k R33 27 0k R36 1 2 JP31 1 2 JP30 1 2 JP29 1 2 JP28 3S 3S 4S 4S 1 5MHz 1 5MHz 750kHz 750kHz 1A ICHG 1A ICHG 1A ICHG 1A ICHG AGND 1 2 JP33 1 2 JP36 Green 1 2 D13 Green 1 2 D14 1 2 JP34 1 2 JP35 PG LED...

Page 16: ...41 C42 2 0 1 F CAP CERM 0 1 uF 25 V 10 X5R 0402 0402 GRM155R61E104KA87 D MuRata D2 D5 2 12V Diode Zener 12 V 300 mW SOD 523 SOD 523 BZT52C12T 7 Diodes Inc D11 D12 2 30V Diode Schottky 30 V 0 2 A SOD 3...

Page 17: ...3 0603 RC0603FR 07100RL Yageo R19 1 5 23k RES 5 23 k 1 0 063 W AEC Q200 Grade 0 0402 0402 CRCW04025K23FKED Vishay Dale R20 R27 R41 R42 R43 R44 6 10 0k RES 10 0 k 1 0 063 W AEC Q200 Grade 0 0402 0402 C...

Page 18: ...0 TP31 TP32 TP33 TP34 TP35 TP36 TP37 TP38 TP39 TP40 TP41 TP42 31 Test Point Miniature White TH White Miniature Testpoint 5002 Keystone TP19 TP20 TP21 TP22 4 Test Point Miniature Red TH Red Miniature T...

Page 19: ...0 V 0 38 A SOD 523 SOD 523 ZLLS350TA Diodes Inc D3 D6 D7 D8 0 30V Diode Schottky 30 V 1 A SOD 123 SOD 123 B130LAW 7 F Diodes Inc D9 0 12V Diode Zener 12 V 300 mW SOD 523 SOD 523 BZT52C12T 7 Diodes Inc...

Page 20: ...ents Incorporated Revision History Revision History NOTE Page numbers for previous revisions may differ from page numbers in the current version Changes from Original June 2020 to A Revision Page Upda...

Page 21: ...ther than TI b the nonconformity resulted from User s design specifications or instructions for such EVMs or improper system design or c User has not paid on time Testing and other quality control tec...

Page 22: ...These limits are designed to provide reasonable protection against harmful interference in a residential installation This equipment generates uses and can radiate radio frequency energy and if not in...

Page 23: ...instructions set forth by Radio Law of Japan which includes but is not limited to the instructions below with respect to EVMs which for the avoidance of doubt are stated strictly for convenience and s...

Page 24: ...any interfaces electronic and or mechanical between the EVM and any human body are designed with suitable isolation and means to safely limit accessible leakage currents to minimize the risk of electr...

Page 25: ...R DAMAGES ARE CLAIMED THE EXISTENCE OF MORE THAN ONE CLAIM SHALL NOT ENLARGE OR EXTEND THIS LIMIT 9 Return Policy Except as otherwise provided TI does not offer any refunds returns or exchanges Furthe...

Page 26: ...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...

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