manualshive.com logo in svg

National Semiconductor bq24188, Руководство пользователя, Страница: 1 / 24

Поделиться
Скачать
National Semiconductor bq24188 Скачать руководство пользователя страница 1

User's Guide

SLUUB72 – January 2015

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

Charger Evaluation Module

The bq24188 evaluation module is a complete charger module for evaluating compact, flexible, high-
efficiency, USB-friendly, switch-mode charge management solutions for single-cell, Li-ion and Li-polymer
batteries used in a wide range of portable applications.

Contents

1

Introduction

...................................................................................................................

2

1.1

bq24188 IC Features

...............................................................................................

2

1.2

bq24188 EVM Features

............................................................................................

2

1.3

Schematic

............................................................................................................

3

1.4

I/O Description

......................................................................................................

4

1.5

Test Points

...........................................................................................................

4

1.6

Control and Key Parameters Setting

.............................................................................

5

1.7

Recommended Operating Conditions

............................................................................

5

2

Test Summary

................................................................................................................

6

2.1

Definitions

............................................................................................................

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 Window of bq24188SW Evaluation Software

....................................................................

10

6

Top Assembly Layer

.......................................................................................................

14

7

Top Layer

...................................................................................................................

15

8

First Internal Layer

.........................................................................................................

16

9

Second Internal Layer

.....................................................................................................

17

10

Bottom Layer

................................................................................................................

18

11

Bottom Assembly Drawing

................................................................................................

19

List of Tables

1

Bill of Materials - BQ24188EVM-691

...................................................................................

13

1

SLUUB72 – January 2015

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

Module

Submit Documentation Feedback

Copyright © 2015, Texas Instruments Incorporated

Содержание bq24188

Страница 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...

Страница 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...

Страница 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...

Страница 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 ...

Страница 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...

Страница 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...

Страница 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 ...

Страница 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 ...

Страница 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 ...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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 ...

Страница 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 ...

Страница 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 ...

Страница 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 ...

Страница 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 ...

Страница 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 ...

Страница 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 ...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Отзывы:

Нет отзывов