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User's Guide

SLUU669–January 2012

QFN-Packaged bq24165/166/167EVM-720 Evaluation

Modules

The bq24165/166/167EVM-720 evaluation module is a complete charger module for evaluating a

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 bq24165/166/167EVM Features ................................................................................. 2

1.3 Schematic ........................................................................................................... 3

1.4 I/O Description ...................................................................................................... 3

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 .......................................................................... 6

2.4 Recommended Test Procedure .................................................................................. 7

3 Printed-Circuit Board Layout Guideline .................................................................................. 8

4 Bill of Materials and Board Layout ...................................................................................... 10

4.1 Bill of Materials .................................................................................................... 10

4.2 Board Layout ...................................................................................................... 12

List of Figures

1 bq24165/166/167EVM (HPA720A) Schematic.......................................................................... 3

2 BAT_Load (PR1010E4) Schematic....................................................................................... 6

3 Original Test Setup for bq24165/166/167EVM (HPA720) ............................................................. 7

4 Top Assembly Layer ...................................................................................................... 12

5 Top Layer .................................................................................................................. 13

6 Bottom Layer............................................................................................................... 14

7 First Internal Layer ........................................................................................................ 15

8 Second Internal Layer .................................................................................................... 16

List of Tables

1 Bill of Materials - HPA720A ............................................................................................. 10

SLUU669–January 2012 QFN-Packaged bq24165/166/167EVM-720 Evaluation Modules

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Summary of content (22 pages)

PAGE 1
User's Guide SLUU669 – January 2012 QFN-Packaged bq24165/166/167EVM-720 Evaluation Modules The bq24165/166/167EVM-720 evaluation module is a complete charger module for evaluating a 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 bq24165/166/167 integrates a synchronous PWM controller, power MOSFETs, input current sensing, high-accuracy current and voltage regulation, charge termination and power path management into a chipscale package. Key integrated circuit (IC) features include: • High-efficiency, fully integrated, NMOS-NMOS, synchronous buck charger with 1.5-MHz frequency • Integrated power FETs for up to 2.
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Introduction www.ti.com 1.3 Schematic Figure 1. bq24165/166/167EVM (HPA720A) Schematic 1.
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Introduction 1.5 1.
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Test Summary www.ti.com IC Jump Description er All JP5 1-2: IUSB1 = HI 2-3: IUSB1 = LO See data sheet Table 1 for description of USB input current limit and VINDPM threshold setting. Default setting is for 500-mA input current limit and 4.68-V threshold.
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Test Summary Measure: → A,B Observe → A,B www.ti.com Check specified parameters A, B. If measured values are not within specified limits, the unit under test has failed. 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) capable of supplying 6 V at 3 A is required. 2.
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Test Summary www.ti.com 5. 6. 7. 8. Connect VM#3 across J5 or TP4 and J9 (SYS, GND). Connect VM#4 across J13 and J15 (DRV, GND). Ensure jumpers are at the default factory settings per Section 1.6 After the preceding steps, the test setup for HPA720 is as shown in Figure 3 VM#1 + V - PS#1 CM#1 A + IIN - V VM#3 + CM#2 + PS#2 A - PR1010 ICHRG - VM#2 + V - V + VM#4 Figure 3. Original Test Setup for bq24165/166/167EVM (HPA720) 2.
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Printed-Circuit Board Layout Guideline www.ti.com 4. 5. 6. 7. Connect voltage meter #1 (VM#1) across J1 or TP1 and J3 or TP6 (IN, GND). With PS#2 disabled, turn on PS#1. Move JP2 (CE1 or CE) = LO and JP6 = LO. Enable PS#2 and slowly increase the PS#2 voltage, so that the voltage measured on VM#2, across BAT and GND, rises from 2.5V, until Measure on CM#2→ ICHRG = 2500 mA ± 150 mA Observe → D1 and D2 are on. 8.
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Printed-Circuit Board Layout Guideline www.ti.com be routed away from the high-current paths. 5. The printed-circuit board (PCB) must have a ground plane (return) connected directly to the return of all components through vias (two vias per capacitor for power-stage capacitors, one via per capacitor for small-signal components). It is also recommended to put vias inside the PGND pads for the IC, if possible.
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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 - HPA720A Count RefDes Value Description Size Part Number MFR 0 C1, C6 Open Capacitor, Ceramic 805 Std Std 2 C2, C7 1.0uF Capacitor, Ceramic, 25V, X5R, 10% 603 Std Std 2 2 C3, C8 4.
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Bill of Materials and Board Layout www.ti.com Table 1. Bill of Materials - HPA720A (continued) Count RefDes Value Description Size Part Number MFR 0 U1 BQ24165YFF IC, 2.5A, Dual-Input, Single Cell Switch-mode Li-Ion BATTERY CHARGER with BGA BQ24165YFF TI 1 0 U1 BQ24166YFF IC, 2.5A, Dual-Input, Single Cell Switch-mode Li-Ion BATTERY CHARGER with BGA BQ24166YFF TI 0 0 1 U1 BQ24167YFF IC, 2.
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Bill of Materials and Board Layout 4.2 www.ti.com Board Layout TEXAS INSTRUMENTS Figure 4.
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Bill of Materials and Board Layout www.ti.com Figure 5.
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Bill of Materials and Board Layout www.ti.com Figure 6.
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Bill of Materials and Board Layout www.ti.com Figure 7.
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Bill of Materials and Board Layout www.ti.com Figure 8.
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Evaluation Board/Kit Important Notice Texas Instruments (TI) provides the enclosed product(s) under the following conditions: This evaluation board/kit is intended for use for ENGINEERING DEVELOPMENT, DEMONSTRATION, OR EVALUATION PURPOSES ONLY and is not considered by TI to be a finished end-product fit for general consumer use. Persons handling the product(s) must have electronics training and observe good engineering practice standards.
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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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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. 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.
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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, enhancements, improvements and other changes to its semiconductor products and services per JESD46, latest issue, and to discontinue any product or service per JESD48, latest issue. Buyers should obtain the latest relevant information before placing orders and should verify that such information is current and complete.