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User's Guide

SLUU496A –December 2011– Revised January 2012

WCSP-Packaged bq24160/161/163/168 Evaluation Modules

The bq24160/161/163/168 evaluation module is a complete charger module for evaluating compact,

flexible, high-efficiency, USB-friendly, switch-mode charge management solution for single-cell, Li-ion and

Li-polymer batteries used in a wide range of portable applications.

Contents

1 Introduction .................................................................................................................. 2

1.1 bq2416x IC Features .............................................................................................. 2

1.2 bq24160/161/163/168 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 ............................................................................ 4

1.7 Recommended Operating Conditions ........................................................................... 5

2 Test Summary ............................................................................................................... 5

2.1 Definitions ........................................................................................................... 5

2.2 Recommended Test Equipment ................................................................................. 6

2.3 Recommended Test Equipment Setup .......................................................................... 7

2.4 Recommended Test Procedure .................................................................................. 9

3 Printed-Circuit Board Layout Guideline ................................................................................. 11

4 Bill of Materials and Board Layout ...................................................................................... 12

4.1 Bill of Materials .................................................................................................... 12

4.2 Board Layout ...................................................................................................... 14

List of Figures

1 bq24160/161/163/168EVM (HPA721) Schematic ...................................................................... 3

2 BAT_Load (PR1010) Schematic .......................................................................................... 6

3 Connections of HPA172 Kit................................................................................................ 8

4 Original Test Setup for bq24160/161/163/168EVM (HPA721)........................................................ 8

5 Main Window of bq2416xSW Evaluation Software..................................................................... 9

6 Top Assembly Layer ...................................................................................................... 14

7 Top Layer .................................................................................................................. 14

8 First Internal Layer ........................................................................................................ 15

9 Second Internal Layer .................................................................................................... 15

10 Bottom Layer............................................................................................................... 16

List of Tables

1 Bill of Materials - HPA721 ............................................................................................... 12

C is a trademark of Philips Electronics N.V.

SLUU496A –December 2011– Revised January 2012 WCSP-Packaged bq24160/161/163/168 Evaluation Modules

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Summary of content (21 pages)

PAGE 1
User's Guide SLUU496A – December 2011 – Revised January 2012 WCSP-Packaged bq24160/161/163/168 Evaluation Modules The bq24160/161/163/168 evaluation module is a complete charger module for evaluating compact, flexible, high-efficiency, USB-friendly, switch-mode charge management solution for single-cell, Li-ion and Li-polymer batteries used in a wide range of portable applications. 1 2 3 4 Contents Introduction ...........................................................................................
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Introduction 1 Introduction 1.1 bq2416x IC Features www.ti.com The bq24160/161/163/168 integrates a synchronous PWM controller, power MOSFETs, input-current sensing, high-accuracy current and voltage regulation, charge termination and power path management into a small WCSP package. The charge parameters can be programmed through an I2C interface. Key IC features include: • High-efficiency, fully integrated, NMOS-NMOS, synchronous buck charger with 1.
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Introduction www.ti.com 1.3 Schematic Figure 1. bq24160/161/163/168EVM (HPA721) Schematic NOTE: EVMs with a printed-circuit board label that contain the suffix -X may have been assembled with incorrectly marked ICs. Regardless of the IC’s marking, the EVM was assembled with the correct part number as specified in the EVM bill of material.
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Introduction 1.4 1.5 www.ti.
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Test Summary www.ti.com 1.7 Jumper Description Default Factory Setting JP1 1-2 (TS = INT): Connects a potentiometer to the TS so that the potentiometer can emulate a thermistor. The potentiometer has been preset to approximately 3.4 kΩ so that the TS voltage is 0.5 x V (DRV). 1-2 (TS = INT) 2-3 (TS = EXT): Connects the TS pin to an external thermistor. The resistor divider formed by R1 and R3 has been sized to accommodate a 10-kΩ thermistor.
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Test Summary V(XXX, YYY): I(JXX(YYY)): Jxx(BBB): JPx ON : JPx OFF: JPx (-YY-) Measure: → A,B Observe → A,B www.ti.com Voltage across point XXX and YYY. Current going out from the YYY terminal of header XX. Terminal or pin BBB of header xx. Internal jumper Jxx terminals are shorted. Internal jumper Jxx terminals are open. ON: Internal jumper Jxx adjacent terminals marked as YY are shorted. Check specified parameters A, B. If measured values are not within specified limits, the unit under test has failed.
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Test Summary www.ti.com 2.2.4 Meters Four equivalent voltage meters (VM #) and two equivalent current meters (CM #) are required. The current meters must be able to measure 3-A current. 2.2.5 Computer A computer with at least one USB port and a USB cable is required. The bq2416x evaluation software must be properly installed. 2.2.6 HPA172 Communication Kit (USB TO GPIO) A HPA172 USB-to-I2C communication kit is required. 2.2.7 Software Download BQ2416xSW.
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Test Summary www.ti.com I/O USB Interface Adapter Texas Instruments © 2006 USB 10-pin Ribbon Cable To Computer USB port To EVM Figure 3. Connections of HPA172 Kit 8. Ensure jumpers are at the default factory settings per Section 1.6 9. After the preceding steps have been performed, the test setup for HPA721 is configured as is shown in Figure 4 Windows PC USB-TOGPIO CM#1 VM#1 + + PS #1 V A PS#2 IIN ICHRG - A + CM#2 V V VM#2 + + - BAT_Load VM#3 - V + VM#4 Figure 4.
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Test Summary www.ti.com 10. Turn on the computer. Open the bq2416x evaluation software. The main window of the software is shown in Figure 5 Figure 5. Main Window of bq2416xSW Evaluation Software 2.4 Recommended Test Procedure The following test procedure may be useful for evaluating the charger IC outside of a real system, if no battery is available to connect to the output and a simulated battery if needed. 2.4.1 1. 2. 3. 4. 5. 6. 7.
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Test Summary www.ti.com • Set Write On Change to ON if not already set. • Set Reset Watchdog Timer to update every 5 seconds. • Set Supply Precedence to IN if not already set. • Uncheck Disable Charging if checked. • Check Enable STAT/INT Outputs. • Set Battery Regulation Voltage to 4.20 V. • Set IN Input Current Limit to 2.5 A. • Set Charge Current to 1000 mA. • Click the READ button at the top of the window and confirm that the previous settings remain. 8.
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Printed-Circuit Board Layout Guideline www.ti.com 2. To observe the VINDPM function, lower the current limit on PS #1. 3. To observe battery supplement mode, apply a resistive load across SYS and GND that is higher than the maximum charge current. 3 Printed-Circuit Board Layout Guideline 1. To obtain optimal performance, the power input capacitors, connected from the PMID input to PGND, must be placed as close as possible to the bq2416x 2. Place 4.
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Bill of Materials and Board Layout www.ti.com 4 Bill of Materials and Board Layout 4.1 Bill of Materials Table 1. Bill of Materials - HPA721 Count RefDes Value Description Size Part Number MFR 2 C1, C3 1 µF Capacitor, Ceramic, 25V, X5R, 10% 603 Std Std 2 C2, C5 1 µF Capacitor, Ceramic, 6.3V, X5R, 10% 402 Std Std 1 1 C4, C12 47 µF Capacitor, Ceramic, 6.3V, X5R, 10% 1206 Std Std 0 0 0 C6, C10 Open Capacitor, Ceramic 1206 Std Std 2 2 2 2 C7, C8 4.
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Bill of Materials and Board Layout www.ti.com Table 1. Bill of Materials - HPA721 (continued) Count RefDes Value Description Size Part Number MFR 0 U1 BQ24161YFF IC, 2.5A, Dual-Input, Single Cell Switch-mode Li-Ion BATTERY CHARGER with QFN3.3X3.3mm BQ24161YFF TI 1 0 U1 BQ24168YFF IC, 2.5A, Dual-Input, Single Cell Switch-mode Li-Ion BATTERY CHARGER with QFN3.3X3.3mm BQ24168YFF TI 0 0 1 U1 BQ24163YFF IC, 2.5A, Dual-Input, Single Cell Switch-mode Li-Ion BATTERY CHARGER with QFN3.
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Bill of Materials and Board Layout 4.2 www.ti.com Board Layout TEXAS INSTRUMENTS Figure 6. Top Assembly Layer Figure 7.
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Bill of Materials and Board Layout www.ti.com Figure 8. First Internal Layer Figure 9.
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Bill of Materials and Board Layout www.ti.com Figure 10.
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EVALUATION BOARD/KIT/MODULE (EVM) ADDITIONAL TERMS Texas Instruments (TI) provides the enclosed Evaluation Board/Kit/Module (EVM) under the following conditions: The user assumes all responsibility and liability for proper and safe handling of the goods. Further, the user indemnifies TI from all claims arising from the handling or use of the goods.
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REGULATORY COMPLIANCE INFORMATION (continued) FCC Interference Statement for Class B EVM devices This equipment has been tested and found to comply with the limits for a Class B digital device, pursuant to part 15 of the FCC Rules. These limits are designed to provide reasonable protection against harmful interference in a residential installation.
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【Important Notice for Users of this Product in Japan】 This development kit is NOT certified as Confirming to Technical Regulations of Radio Law of Japan If you use this product in Japan, you are required by Radio Law of Japan to follow the instructions below with respect to this product: 1. 2. 3. Use this product 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.
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EVALUATION BOARD/KIT/MODULE (EVM) WARNINGS, RESTRICTIONS AND DISCLAIMERS For Feasibility Evaluation Only, in Laboratory/Development Environments. Unless otherwise indicated, this EVM is not a finished electrical equipment and not intended for consumer use.
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IMPORTANT NOTICE Texas Instruments Incorporated and its subsidiaries (TI) reserve the right to make corrections, modifications, enhancements, improvements, and other changes to its products and services at any time and to discontinue any product or service without notice. Customers should obtain the latest relevant information before placing orders and should verify that such information is current and complete.