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1
2

J13

BAT

DRV

HIGH

up to 4.44V, 2A

PSEL

PSEL

BAT

LOW

10µF

C6

GND

BAT

GND

PGND

A1

PGND

A2

PGND

A3

PGND

A4

PGND

A5

PGND

A6

PMID

B1

SW

B2

SW

B3

SW

B4

SW

B5

SW

B6

IN

C1

IN

C2

IN

C3

IN

C4

CD

C5

BOOT

C6

SDA

D1

SCL

D2

NC

D3

TS

D5

DRV

D6

STAT

E1

INT

E2

SYS

E3

SYS

E4

SYS

E5

SYS

E6

AGND

F1

BGATE

F2

BAT

F3

BAT

F4

BAT

F5

BAT

F6

PSEL

D4

U1

BQ24188YFF

1µF

C4

GND

GND

VBUS

1

D-

2

D+

3

ID

4

GND

5

6

7

8

1

1

10

9

J2

0475890001

GND

DM

USB

R9

GND

PSEL

1µF

C9

GND

GND

22µF

C5

up to 6V, 2.5A

GND

INT

IN

STAT

DRV

TS

IN

PSEL

GND

GND

GND

DM

SCL

GND

SDA

GND

GND

DRV

SW

L1

SPM4012T-1R5M

DRV

1

2

3

JP5

HIGH

CD

DRV

LOW

DRV

DRV

GND

GND

GND

EXT

5.62k

R5

TP9

TS

GND

TS

DRV

GND

EXT

Red

1

2

D2

Green

1

2

D1

TS

SCL

SIM

4

1
2
3

J15

22-05-3041

12.4k

R6

STAT

GND

INT

TP1

TP2

TP4

TP5

TP7

GND

SW

GND

200

R2

BAT

SDA

GND

SYS

100k

R7

3266W-1-104LF

GND

1.50k

R3

1.50k

R4

TP6

TP8

IN

INT

STAT

200

R1

SYS

IN

GND

1

1

1

1

1 See BOM for values

1

2

J14

ED555/2DS

1
2

J7

ED555/2DS

1

2

J1

ED555/2DS

1

2

J9

ED555/2DS

1µF

C2

4.7µF

C1

10µF

C8

1
2

J5

1
2

J6

1
2

J3

1

2

JP3

1

2

JP2

1
2

J8

1
2

J4

1

2

3

JP7

1

2

3

JP6

1

2

JP1

TP3

1
2

J12

SYS

SYS
GND

GND

1
2

J11

ED555/2DS

1
2

J10

GND

TP10

TP11

1

2

3

JP4

3

5

1

2

4

6

7

8

Q1
CSD25401Q3

1.00M

R8

BGATE

BGATE

SYS (OFF)

BGATE

GATE

0.033µF

C3

www.ti.com

Introduction

1.3

Schematic

Figure 1

illustrates the bq24188 schematic.

Figure 1. bq24188EVM Schematic

3

SLUUB72 – January 2015

User's Guide for WCSP-Packaged bq24188 2-A Battery Charger Evaluation

Module

Submit Documentation Feedback

Copyright © 2015, Texas Instruments Incorporated

Summary of Contents for bq24188

Page 1: ...itions 6 2 2 Recommended Test Equipment 6 2 3 Recommended Test Equipment Setup 8 2 4 Recommended Test Procedure 10 3 Printed Circuit Board Layout Guideline 12 4 Bill of Materials and Board Layout 13 4 1 Bill of Materials 13 4 2 Board Layout 14 List of Figures 1 bq24188EVM Schematic 3 2 BAT_Load PR1010 Schematic 7 3 Connections of HPA172 Kit 8 4 Original Test Setup for BQ24188EVM 691 9 5 Main Windo...

Page 2: ...4 1 2 bq24188 EVM Features The bq24188 evaluation module EVM on PCB PWR691 provide a complete charger module for evaluating compact flexible high efficiency USB friendly switch mode battery charge and power path management solution for single cell Li ion and Li polymer battery powered systems used in a wide range of portable applications Key EVM features include Terminal blocks and standard header...

Page 3: ...2 D2 Green 1 2 D1 TS SCL SIM 4 1 2 3 J15 22 05 3041 12 4k R6 STAT GND INT TP1 TP2 TP4 TP5 TP7 GND SW GND 200 R2 BAT SDA GND SYS 100k R7 3266W 1 104LF GND 1 50k R3 1 50k R4 TP6 TP8 IN INT STAT 200 R1 SYS IN GND 1 1 1 1 1 See BOM for values 1 2 J14 ED555 2DS 1 2 J7 ED555 2DS 1 2 J1 ED555 2DS 1 2 J9 ED555 2DS 1µF C2 4 7µF C1 10µF C8 1 2 J5 1 2 J6 1 2 J3 1 2 JP3 1 2 JP2 1 2 J8 1 2 J4 1 2 3 JP7 1 2 3 J...

Page 4: ...eader J9 EXT TS GND External thermistor terminal J10 GND SYS output negative header J11 SYS GND SYS output positive and negative terminal J12 SYS SYS output positive header J13 BAT Battery positive header J14 BAT GND Battery positive and negative header J15 USB to GPIO USB to GPIO box keyed connector 1 5 Test Points Test Point Description TP1 BAT TP2 SW TP3 GND TP4 SYS TP5 IN TP6 STAT TP7 GND TP8 ...

Page 5: ...formed by R5 and R6 has been sized to accommodate a 10 kΩ thermistor If a different thermistor is used R5 and R6 must be resized PSEL LO Input current limit is set to 1 5 A until changed by I2C JP7 PSEL HI PSEL HI Input current limit is set to USB100 until changed by I2C 1 7 Recommended Operating Conditions Min Typ Max Unit Supply voltage VIN Input voltage from ac adapter 4 2 10 0 V System voltage...

Page 6: ...als marked as YY are shorted Measure A B Check specified parameters A B If measured values are not within specified limits the unit under test has failed Observe A B Observe if A B occur If they do not occur the unit under test has failed Assembly drawings have location for jumpers test points and individual components 2 2 Recommended Test Equipment 2 2 1 Power Supplies 1 Power Supply 1 PS 1 capab...

Page 7: ...r 30 seconds of operation the IC enters Default mode Note that the 27 minute safety timer is not reset by this function and eventually times out if charging does not complete unless the Safety Timer Time Limit is expanded or disabled via the GUI One way to reset the safety timer is to allow the 30 second watchdog timer to expire See Figure 3 in the data sheet for more information about the timers ...

Page 8: ... a voltage meter is connected across J2 or TP3 and J6 or TP9 BAT GND 5 Connect VM 3 across J10 or TP7 and J14 or TP9 SYS GND 6 Connect VM 4 across J15 or TP5 and J14 or TP9 DRV GND 7 Connect J17 to EV2400 kit by the 4 pin ribbon cable Connect the USB port of the EV2400 kit to the USB port of the computer The connections are shown in Figure 3 Figure 3 Connections of HPA172 Kit 8 Ensure jumpers are ...

Page 9: ...on the computer Open the bq24188 evaluation software The main window of the software is shown in Figure 5 9 SLUUB72 January 2015 User s Guide for WCSP Packaged bq24188 2 A Battery Charger Evaluation Module Submit Documentation Feedback Copyright 2015 Texas Instruments Incorporated ...

Page 10: ... shown in Figure 4 4 Connect voltage meter 1 VM 1 across J4 and J3 or TP5 and or TP7 IN GND 5 Connect either a real single cell lithium ion battery or battery simulator across J14 or J13 J5 BAT GND with current meter 2 in series as shown in Figure 4 If using a battery simulator like the one shown in Figure 2and referred to as BAT_LOAD in Figure 4 configure power supply 2 PS 2 with at least 4 A cur...

Page 11: ... reads 5 V adjust PS 2 so that VM 2 reads 3 6 V and then lower the current limit setting on PS 1 to below the software s Charge Current setting Measure on VM 1 VIN software s V INDPM level default of 4 2 V Measure on CM 2 ICHRG 2000 mA 16 To test battery regulation and charge termination return the PS 1 current limit to 4 A and confirm that the software s Enable Termination box is checked then slo...

Page 12: ...mize the current path loop area from the SW pin through the LC filter and back to the PGND pin 4 Place all decoupling capacitors close to their respective IC pins and as close as to PGND do not place components such that routing interrupts power stage currents All small control signals must be routed away from the high current paths 5 The PCB must have a ground plane return connected directly to t...

Page 13: ...ll Max 800 10 003 10 001000 2 L1 Inductor Wirewound Metal Composite 1 5 µH 3 5 A 0 07 ohm SMD TDK SPM4012T 1R5M 1 LBL1 Thermal Transfer Printable Labels 0 650 W x 0 200 H 10 000 per roll Brady THT 14 423 10 1 Q1 MOSFET P CH 20 V 60 A SON 3 3x3 3mm Texas Instruments CSD25401Q3 1 R1 R2 RES 200 ohm 1 0 1W 0603 Vishay Dale CRCW0603200RFKEA 2 R3 R4 RES 1 50k ohm 1 0 1W 0603 Yageo America RC0603FR 071K5...

Page 14: ...ure 6 through Figure 11 illustrate the PCB layouts for this EVM Figure 6 Top Assembly Layer 14 User s Guide for WCSP Packaged bq24188 2 A Battery Charger Evaluation SLUUB72 January 2015 Module Submit Documentation Feedback Copyright 2015 Texas Instruments Incorporated ...

Page 15: ...aterials and Board Layout Figure 7 Top Layer 15 SLUUB72 January 2015 User s Guide for WCSP Packaged bq24188 2 A Battery Charger Evaluation Module Submit Documentation Feedback Copyright 2015 Texas Instruments Incorporated ...

Page 16: ...rd Layout www ti com Figure 8 First Internal Layer 16 User s Guide for WCSP Packaged bq24188 2 A Battery Charger Evaluation SLUUB72 January 2015 Module Submit Documentation Feedback Copyright 2015 Texas Instruments Incorporated ...

Page 17: ...ls and Board Layout Figure 9 Second Internal Layer 17 SLUUB72 January 2015 User s Guide for WCSP Packaged bq24188 2 A Battery Charger Evaluation Module Submit Documentation Feedback Copyright 2015 Texas Instruments Incorporated ...

Page 18: ...Board Layout www ti com Figure 10 Bottom Layer 18 User s Guide for WCSP Packaged bq24188 2 A Battery Charger Evaluation SLUUB72 January 2015 Module Submit Documentation Feedback Copyright 2015 Texas Instruments Incorporated ...

Page 19: ...s and Board Layout Figure 11 Bottom Assembly Drawing 19 SLUUB72 January 2015 User s Guide for WCSP Packaged bq24188 2 A Battery Charger Evaluation Module Submit Documentation Feedback Copyright 2015 Texas Instruments Incorporated ...

Page 20: ...ring the warranty period to the address designated by TI and that are determined by TI not to conform to such warranty If TI elects to repair or replace such EVM TI shall have a reasonable time to repair such EVM or provide replacements Repaired EVMs shall be warranted for the remainder of the original warranty period Replaced EVMs shall be warranted for a new full ninety 90 day warranty period 3 ...

Page 21: ...io transmitter has been approved by Industry Canada to operate with 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 greater than the maximum gain indicated for that type are strictly prohibited for use with this device Concernant les EVMs avec antennes d...

Page 22: ... 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...

Page 23: ...F 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 USE LOSS OF DATA OR BUSINESS INTERRUPTION NO CLAIM SUIT OR ACTION SHALL BE BROUGHT AGAINST TI MORE THAN ONE YEAR AFTER THE RELATED CAUSE OF ACTION HAS OCCURRED 8 2 Specific Limitations IN NO EVENT SHALL T...

Page 24: ...esponsible for compliance with all legal regulatory and safety related requirements concerning its products and any use of TI components in its applications notwithstanding any applications related information or support that may be provided by TI Buyer represents and agrees that it has all the necessary expertise to create and implement safeguards which anticipate dangerous consequences of failur...

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