Texas Instruments BQ25181 User Manual Download Page 13 | Manualshive

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Figure 4-4. Bottom Layer

Figure 4-5. Bottom Solder

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Layout

SLUUCL3 – APRIL 2022

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BQ25181 EVM User's Guide

13

Copyright © 2022 Texas Instruments Incorporated

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Summary of Contents for BQ25181

Page 1: ...n 3 1 1 Features 3 1 2 EVM Setup 3 2 EVM Connectors and Test Points 5 3 Testing Procedures 6 3 1 Equipment 6 3 2 Charge Mode 6 3 3 Ship Mode 9 3 4 Shutdown Mode 10 4 Layout 13 5 Schematics 14 6 Bill of Materials 17 List of Figures Figure 1 1 EVM Connections 4 Figure 3 1 BQ25181EVM Connections 6 Figure 3 2 TI Charger GUI Device Selection 7 Figure 3 3 BQ25181EVM Connected 7 Figure 3 4 BQ25181EVM GUI...

Page 2: ...r Descriptions 3 Table 1 2 Recommended Operating Conditions 4 Table 2 1 Jumper Default Configuration 5 Table 2 2 Test Point Descriptions 5 Table 6 1 Bill of Materials 17 Trademarks All trademarks are the property of their respective owners Trademarks www ti com 2 BQ25181 EVM User s Guide SLUUCL3 APRIL 2022 Submit Document Feedback Copyright 2022 Texas Instruments Incorporated ...

Page 3: ... and the jumper description Table 1 1 Jumper Descriptions Jumper Name Description J1 Provide the I2C pull up to 3p3 V Note The USB2ANY will provide this pull up when using the TI Charger GUI J2 VIN and GND connector Input voltage from external power supply Recommended voltage is 5 V and OVP is 5 7 V Max input voltage is 25 V while in OVP J3 VBAT and GND connector Battery connection using jumper fo...

Page 4: ...T VBAT Battery voltage range 2 2 4 6 V VIN Input voltage range 2 7 5 5 V IIN Input current range IN to SYS 1 1 A IBAT Battery discharge current BAT to SYS 1 5 A TA Operating ambient temperature range 40 85 C TJ Operating junction temperature range 40 125 C Introduction www ti com 4 BQ25181 EVM User s Guide SLUUCL3 APRIL 2022 Submit Document Feedback Copyright 2022 Texas Instruments Incorporated ...

Page 5: ...d GND connector NA J13 Charge enable jumper control Low J14 Micro USB connector optional for VIN NA Table 2 2 describes the test points available on the board for easy access measurement Table 2 2 Test Point Descriptions Test Point Description TP1 TP2 TP3 IC GND test point TP4 IC CE test point TP5 IC VIN test point TP6 IC VSYS test point TP7 IC SCL test point TP8 IC VBAT test point TP9 IC SDA test...

Page 6: ...ge Mode Connect the equipment as follows Power Supply PS 1 VIN of the BQ25181EVM at 5 V Power Supply PS 2 VBAT of the BQ25181EVM at 3 7 V Scope Channel SC 1 VIN at TP5 Scope Channel SC 2 VBAT at TP8 Scope Channel SC 3 VSYS at TP6 Turn ON power supply PS 2 then turn ON supply PS 1 With PS 1 enabled VSYS will rise to the level of 4 5 V and the PG LED will turn on to indicate Power Good The device wi...

Page 7: ... or Register Map Figure 3 3 BQ25181EVM Connected The Quick Start is shown in Figure 3 4 Disabling the charge through I2C will override the charge disable pin www ti com Testing Procedures SLUUCL3 APRIL 2022 Submit Document Feedback BQ25181 EVM User s Guide 7 Copyright 2022 Texas Instruments Incorporated ...

Page 8: ...uick Start The register map is shown in Figure 3 5 Figure 3 5 BQ25181 Register Map Testing Procedures www ti com 8 BQ25181 EVM User s Guide SLUUCL3 APRIL 2022 Submit Document Feedback Copyright 2022 Texas Instruments Incorporated ...

Page 9: ...hip Mode as the voltage on SYS SC 3 will fall to 0 V and the voltage on TS MR SC 4 will still periodically pulse to monitor button press Figure 3 6 SHIP_RST Register Enabling Ship Mode Alternatively Ship Mode can be entered through a long button press Turn ON power supply 2 With VSYS active not in Ship Mode or Shutdown Mode ensure that the PB_LPRESS_ACTION bits are set to 2b10 Enable shipmode Afte...

Page 10: ...AT of the BQ25181EVM at 3 7 V Scope Channel SC 1 VIN at TP5 Scope Channel SC 2 VBAT at TP8 Scope Channel SC 3 VSYS at TP6 Scope Channel SC 4 TS MR at TP11 Turn ON power supply 2 Enter Shutdown Mode by setting the EN_RST_SHIP bits in the SHIP_RST register 0x09 to 2b01 You will know you are in Shutdown Mode as the voltage on the SYS pin SC 2 will fall to 0 V and the voltage on the TS MR pin falls to...

Page 11: ... that the PB_LPRESS_ACTION bits are set to 2b11 Enable Shutdown Mode After holding the button SW1 for longer than MR_LPRESS default 2b01 10s the voltage on SYS SC 3 will fall to 0 V Figure 3 9 SHIP_RST Register Long Press Action to Enable Shutdown Mode www ti com Testing Procedures SLUUCL3 APRIL 2022 Submit Document Feedback BQ25181 EVM User s Guide 11 Copyright 2022 Texas Instruments Incorporated...

Page 12: ...mply turn on VIN at 5 V Exiting Shutdown Mode will enable the VSYS output Testing Procedures www ti com 12 BQ25181 EVM User s Guide SLUUCL3 APRIL 2022 Submit Document Feedback Copyright 2022 Texas Instruments Incorporated ...

Page 13: ...gure 4 1 Top Overlay Figure 4 2 Top Solder Figure 4 3 Top Layer Figure 4 4 Bottom Layer Figure 4 5 Bottom Solder Figure 4 6 Bottom Overlay www ti com Layout SLUUCL3 APRIL 2022 Submit Document Feedback BQ25181 EVM User s Guide 13 Copyright 2022 Texas Instruments Incorporated ...

Page 14: ... 1 through Figure 5 3 illustrate the EVM schematics Figure 5 1 BQ25181EVM Schematic Schematics www ti com 14 BQ25181 EVM User s Guide SLUUCL3 APRIL 2022 Submit Document Feedback Copyright 2022 Texas Instruments Incorporated ...

Page 15: ...Figure 5 2 BQ25181EVM Jumper Connectors www ti com Schematics SLUUCL3 APRIL 2022 Submit Document Feedback BQ25181 EVM User s Guide 15 Copyright 2022 Texas Instruments Incorporated ...

Page 16: ...Figure 5 3 LDO for Other Peripherals Schematics www ti com 16 BQ25181 EVM User s Guide SLUUCL3 APRIL 2022 Submit Document Feedback Copyright 2022 Texas Instruments Incorporated ...

Page 17: ...2 PIN 100mil Tin PEC02SAAN Sullins Connector Solutions J4 1 Header shrouded 2mm 2x1 R A SMT Header 2x1 2mm R A S2B PH SM4 TB LF SN JST Manufacturing J6 1 Header Shrouded 2 54mm 5x2 Gold TH Header 2 54mm 5x2 TH AWHW 10G 0202 T Assman WSW J8 J9 2 Connector Receptacle 100mil 10x1 Gold plated TH 10x1 Receptacle SSW 110 23 F S Samtec J13 1 Header 100mil 3x1 Tin TH Header 3 PIN 100mil Tin PEC03SAAN Sull...

Page 18: ...P2 TP3 3 Test Point Multipurpose Black TH Black Multipurpose Testpoint 5011 Keystone TP4 TP7 TP9 TP10 TP11 TP12 6 Test Point Multipurpose Yellow TH Yellow Multipurpose Testpoint 5014 Keystone TP5 TP6 TP8 3 Test Point Multipurpose Red TH Red Multipurpose Testpoint 5010 Keystone U1 1 Power Path Linear Battery Charger with ShipMode in ultra small package WSON10 BQ25181DLHT Texas Instruments U2 1 1 uA...

Page 19: ...other 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 techniques are used to the extent TI deems necessary TI does not test all parameters of each EVM User s claims against TI under this Section 2 are void if User fails to notify TI of any apparent defects...

Page 20: ... 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 installed and used in accordance with the instructions may cause harmful interference to radio communications However there is no guarantee that interference will not occur in a particular installation...

Page 21: ...y for convenience and should be verified by User 1 Use EVMs in a shielded room or any other test facility as defined in the notification 173 issued by Ministry of Internal Affairs and Communications on March 28 2006 based on Sub section 1 1 of Article 6 of the Ministry s Rule for Enforcement of Radio Law of Japan 2 Use EVMs only after User obtains the license of Test Radio Station as provided in R...

Page 22: ... 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...

Page 23: ...OR 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 Furthermore no return of EVM s will be accepted if the package has been opened and no return of the EVM s will be accepted if they are damaged or otherwise not in a resalable condition If User feels it has...

Page 24: ...o 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 reproduction and display of these resources is prohibited No license is granted to any other TI intellectual property right or to any third party intellectual property right TI disclaims responsibility for and you will fully indemn...

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