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Texas Instruments BQ2461X - page 1
User's Guide SLUU396A – January 2010 – Revised July 2010 bq2461x/bq2463x EVM (HPA422) Multi-Cell Synchronous Switch-Mode Charger Contents 1 Introduction .................................................................................................................. 2 1.1 EVM Features ...................................................... ...
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Texas Instruments BQ2461X - page 2
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. • Test Points for Key Signals Available for Testing Purpose. Eas ...
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Texas Instruments BQ2461X - page 3
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 source JP2–LEDPWR LED Pull-up power line JP3–VREF IC reference voltage VREF JP3–VPULLUP Pull-up voltage source JP3–EXT External voltage supply f ...
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Texas Instruments BQ2461X - page 4
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. 2 Test Summary 2.1 Definitions This procedure details how to configure the HPA422 ...
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Texas Instruments BQ2461X - page 5
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 Load #1 Load #2 I TP2 JP2 GND VEXT TTC ISET1 ACSET ISET2 VEXT GND VREF HI L O Power sup ply#2 I /ACDRV /BA TDRV CE PG /ST A T1 /STA T2 VCC TP9 JP4 ...
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Texas Instruments BQ2461X - page 6
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. Increase the output voltage on PS#1 until D5 (PG) on but do not exceed 5V. Set t ...
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Texas Instruments BQ2461X - page 7
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 1.4V ± 0.1V. Measure → V(J4(TS)) = 1.4V ± 100mV Measure → Ibat = 3000mA ± 3 ...
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Texas Instruments BQ2461X - page 8
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 bq24616-004 Value RefDes Description Size Part Number Mfr 1 0 0 0 bq24610RGE U1 Charger Controller IC QFN-24 (RGE) bq24610RGE TI 0 1 0 0 bq24617RGE U1 Charger ...
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Texas Instruments BQ2461X - page 9
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, 0.100 inch x 3 PEC03SAAN Sullins 4 4 4 4 0 R10,R19,R26, Resistor, Chip, 1/16W, 1% 402 Std Std R13 1 1 ...
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Texas Instruments BQ2461X - page 10
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 0.100 5001 Keystone Keyed inch 14 14 14 14 5002 /ACDRV,/BAT Test Point, White, Thru Hole Color 0.10 ...
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Texas Instruments BQ2461X - page 11
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, Texas Instruments Incorporated ...
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Texas Instruments BQ2461X - page 12
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 Instruments Incorporated ...
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Texas Instruments BQ2461X - page 13
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 Instruments Incorporated ...
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Texas Instruments BQ2461X - page 14
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 Instruments Incorporated ...
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Texas Instruments BQ2461X - page 15
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 Instruments Incorporated ...
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Texas Instruments BQ2461X - page 16
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 Instruments Incorporated ...
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Texas Instruments BQ2461X - page 17
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 Instruments Incorporated ...
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Texas Instruments BQ2461X - page 18
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 Instruments Incorporated ...
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Texas Instruments BQ2461X - page 19
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 Copyright © 2010, Texas Instruments Incorporated ...
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Texas Instruments BQ2461X - page 20
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 ...
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Texas Instruments BQ2461X - page 21
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 ...
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