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Texas Instruments SLUU477 manual

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Table of contents for the manual

  • Page 1

    User's Guide SLUU477 – December 2010 800mA, Single-Input, Single Cell Li-Ion Battery Solar Charger with Power Path This user's guide describes the features and operation of the bq24210EVM Evaluation Module (EVM). The EVM assists users in evaluating the bq24210 solar chager. The EVM is also called the HPA678. The manual includes the bq24[...]

  • Page 2

    Introduction www.ti.com 1 Introduction 1.1 EVM Features • Evaluation Module for bq24210 • 800mA, Single-Input, Single Cell Li-Ion Battery Solar Charger with Power Path • Resistor-programmable setting for charge current and input voltage dynamic power management • LED Indication for Status • Test Points for Key Signals Available for Testin[...]

  • Page 3

    ( ) D PM D PM _ 1 VD PM D PM VBU S_ VBUS _ R = K VBUS_ - I SE T I SET O U T K R = I www.ti.com Introduction 1.4 Control and Key Parameters Setting Table 2. Control and Key Parameters Setting Jack Description Factory Setting JP1 Programs the fast-charge current setting. 500mA when JP1 ON; external setting Jumper OFF (external setting) when JP1 OFF J[...]

  • Page 4

    Test Summary www.ti.com 2 Test Summary 2.1 Definitions This procedure details how to configure the HPA678 evaluation board. On the test procedure, the following naming conventions are followed. VXXX : External voltage supply name (VBUS, VBAT) LOADW: External load name (LOADR, LOADI) V(TPyyy): Voltage at internal test point (TPyyy). For example, V(T[...]

  • Page 5

    BQ24210 EVM HP A678 GND J1 VBUS J2 GND BA T APPLICATION CIRCUIT U1 V Iin I Power supply #1 IBAT V Load #1 I TS PG JP1 D1 LED CHG D2 J4 JP4 JP5 JP7 JP6 JP2 J3 JP3 www.ti.com Test Summary 2.5 Equipment 2.5.1 Power Supplies Power Supply #1 (PS#1): a power supply capable of supplying 20-V at 1-A is required. 2.5.2 Loads LOAD #1 A 20V (or above), 1A (or[...]

  • Page 6

    PCB Layout Guideline www.ti.com 2.7 Procedure 2.7.1 Power Supply Make sure EQUIPMENT SETUP steps are followed. Disconnect LOAD #1. Turn on PS#1. Measure → V(J1(VBUS)) = 6.5V ± 200mV Measure → V(J2(VBAT)) = 0V ± 200mV Measure → V(J4(VTSB)) = 0V ± 200mV Observe → D1 (PG) ON, D2 (CHG) OFF 2.7.2 Charger Enable and Battery Detection Connect J[...]

  • Page 7

    www.ti.com Bill of Materials, Board Layout and Schematics 4 Bill of Materials, Board Layout and Schematics 4.1 Bill of Materials Table 4. Bill of Materials -001 RefDes Value Description SIZE Part Number MFR 1 C1 10 µ F Capacitor, Ceramic, 25V,X7R, 10% 1206 STD STD 2 C2, C4 0.1 µF Capacitor, Ceramic, 25V, X7R, 10% 0603 STD STD 1 C3 10 µF Capacito[...]

  • Page 8

    Bill of Materials, Board Layout and Schematics www.ti.com 4.2 Board Layout Figure 2. Top Assembly 8 800mA, Single-Input, Single Cell Li-Ion Battery Solar Charger with Power Path SLUU477 – December 2010 Submit Documentation Feedback © 2010, Texas Instruments Incorporated[...]

  • Page 9

    www.ti.com Bill of Materials, Board Layout and Schematics Figure 3. Top Layer 9 SLUU477 – December 2010 800mA, Single-Input, Single Cell Li-Ion Battery Solar Charger with Power Path Submit Documentation Feedback © 2010, Texas Instruments Incorporated[...]

  • Page 10

    Bill of Materials, Board Layout and Schematics www.ti.com Figure 4. Bottom Layer 10 800mA, Single-Input, Single Cell Li-Ion Battery Solar Charger with Power Path SLUU477 – December 2010 Submit Documentation Feedback © 2010, Texas Instruments Incorporated[...]

  • Page 11

    www.ti.com Bill of Materials, Board Layout and Schematics 4.3 Schematics Figure 5. bq24210 EVM Schematic 11 SLUU477 – December 2010 800mA, Single-Input, Single Cell Li-Ion Battery Solar Charger with Power Path Submit Documentation Feedback © 2010, Texas Instruments Incorporated[...]

  • Page 12

    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 th[...]

  • Page 13

    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[...]