Texas InstrumentsメーカーBQ2461Xの使用説明書/サービス説明書
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User's Guide SLUU396A – January 2010 – Revised July 2010 bq2461x/bq2463x EVM (HPA422) Multi-Cell Synchronous Switch-Mode Charger Contents 1 Introduction .........................................................................................
Introduction www.ti.com 1 Introduction 1.1 EVM Features • Evaluation Module For bq2461x/bq2463x • High Efficiency Synchronous Buck Charger • User-programmable up to 26V Battery Voltage • AC Adapter Operating Range 5 V–28 V • LED Indication for Control and Status Signals.
www.ti.com Introduction Table 1. I/O Description (continued) Jack Description J5–GND Ground JP1–LOW Ground JP1–TTC Timer capacitor pin JP1–HI Pull-up voltage source JP2–HI Pull-up voltage so.
Test Summary www.ti.com R25 and R28 can be changed to regulate output. V BAT = 2.1V × [1+ R25/R28]; for bq2461x; V BAT = 1.8V × [1+ R25/R28]; for bq2463x; Adjust the input voltage as required. Output set to operate at 21V (bq2461x) or 18V (bq2463x) from the factory.
bq24610/616/617/30EVM HP A422 ACPWR J1 PGND SYS J5 PGND BA T VREF JP3 PG TS APPLICA TIONCIRCUIT PH TP12 SYS VBA T TP1 ACPWR ST A T1 J 3 J2 JP1 U1 JP5 J4 V Iin I Power supply#1 Isys V Ibat V I.
Test Summary www.ti.com 2.4 Procedure 2.4.1 AC Adapter Detection Threshold 1. Make sure EQUIPMENT SETUP steps are followed. Turn on PS#2. 2. Turn on PS#1 Measure → V(J5(SYS)) = 0 ± 500mV Measure → V(TP(VREF)) = 0V ± 1000mV Measure → V(TP(REGN)) = 0V ± 500mV 3.
www.ti.com PCB Layout Guideline 2.4.4 Charger Cut-Off by Thermistor 1. Slowly increase the output voltage of PS2 until Ibat = 0 ± 10mA. Measure → V(J4(TS)) = 2.44V ± 200mV Observe → D7 (STAT1) off; D8 (STAT2) off. 2. Slowly decrease the output voltage of PS2 to 1.
Bill of Materials, Board Layout and Schematics www.ti.com 4 Bill of Materials, Board Layout and Schematics 4.1 Bill of Materials Table 4. Bill of Materials bq24610-001 bq24617-002 Bq24630-003 bq24616-.
www.ti.com Bill of Materials, Board Layout and Schematics Table 4. Bill of Materials (continued) bq24610-001 bq24617-002 Bq24630-003 bq24616-004 Value RefDes Description Size Part Number Mfr 2 2 2 2 PEC03SAAN JP1,JP3 Header, 3 pin, 100mil spacing, 0.
Bill of Materials, Board Layout and Schematics www.ti.com Table 4. Bill of Materials (continued) bq24610-001 bq24617-002 Bq24630-003 bq24616-004 Value RefDes Description Size Part Number Mfr 1 1 1 1 5001 GND Test Point, Black, Thru Hole Color 0.100 x 0.
www.ti.com Board Layout 5 Board Layout Figure 2. Top Layer 11 SLUU396A – January 2010 – Revised July 2010 bq2461x/bq2463x EVM (HPA422) Multi-Cell Synchronous Switch-Mode Charger Copyright © 2010,.
Board Layout www.ti.com Figure 3. 2 nd Layer 12 bq2461x/bq2463x EVM (HPA422) Multi-Cell Synchronous Switch-Mode Charger SLUU396A – January 2010 – Revised July 2010 Copyright © 2010, Texas Instrum.
www.ti.com Board Layout Figure 4. 3 rd Layer 13 SLUU396A – January 2010 – Revised July 2010 bq2461x/bq2463x EVM (HPA422) Multi-Cell Synchronous Switch-Mode Charger Copyright © 2010, Texas Instrum.
Board Layout www.ti.com Figure 5. Bottom Layer 14 bq2461x/bq2463x EVM (HPA422) Multi-Cell Synchronous Switch-Mode Charger SLUU396A – January 2010 – Revised July 2010 Copyright © 2010, Texas Instr.
www.ti.com Board Layout Figure 6. Top Assembly 15 SLUU396A – January 2010 – Revised July 2010 bq2461x/bq2463x EVM (HPA422) Multi-Cell Synchronous Switch-Mode Charger Copyright © 2010, Texas Instr.
Board Layout www.ti.com Figure 7. Bottom Assembly 16 bq2461x/bq2463x EVM (HPA422) Multi-Cell Synchronous Switch-Mode Charger SLUU396A – January 2010 – Revised July 2010 Copyright © 2010, Texas In.
www.ti.com Board Layout Figure 8. Top Silkscreen 17 SLUU396A – January 2010 – Revised July 2010 bq2461x/bq2463x EVM (HPA422) Multi-Cell Synchronous Switch-Mode Charger Copyright © 2010, Texas Ins.
Board Layout www.ti.com Figure 9. Bottom Silkscreen 18 bq2461x/bq2463x EVM (HPA422) Multi-Cell Synchronous Switch-Mode Charger SLUU396A – January 2010 – Revised July 2010 Copyright © 2010, Texas .
www.ti.com Schematics 6 Schematics Figure 10. bq2461x/bq2463x EVM Schematic 19 SLUU396A – January 2010 – Revised July 2010 bq2461x/bq2463x EVM (HPA422) Multi-Cell Synchronous Switch-Mode Charger C.
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.
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.
デバイスTexas Instruments BQ2461Xの購入後に(又は購入する前であっても)重要なポイントは、説明書をよく読むことです。その単純な理由はいくつかあります:
Texas Instruments BQ2461Xをまだ購入していないなら、この製品の基本情報を理解する良い機会です。まずは上にある説明書の最初のページをご覧ください。そこにはTexas Instruments BQ2461Xの技術情報の概要が記載されているはずです。デバイスがあなたのニーズを満たすかどうかは、ここで確認しましょう。Texas Instruments BQ2461Xの取扱説明書の次のページをよく読むことにより、製品の全機能やその取り扱いに関する情報を知ることができます。Texas Instruments BQ2461Xで得られた情報は、きっとあなたの購入の決断を手助けしてくれることでしょう。
Texas Instruments BQ2461Xを既にお持ちだが、まだ読んでいない場合は、上記の理由によりそれを行うべきです。そうすることにより機能を適切に使用しているか、又はTexas Instruments BQ2461Xの不適切な取り扱いによりその寿命を短くする危険を犯していないかどうかを知ることができます。
ですが、ユーザガイドが果たす重要な役割の一つは、Texas Instruments BQ2461Xに関する問題の解決を支援することです。そこにはほとんどの場合、トラブルシューティング、すなわちTexas Instruments BQ2461Xデバイスで最もよく起こりうる故障・不良とそれらの対処法についてのアドバイスを見つけることができるはずです。たとえ問題を解決できなかった場合でも、説明書にはカスタマー・サービスセンター又は最寄りのサービスセンターへの問い合わせ先等、次の対処法についての指示があるはずです。