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bq24750/50A/51/51A/51B/52/53 EVM (HPA207) For Multi
Cell Synchronous Notebook Charger and System Power
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Introduction
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EVM Features
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Evaluation Module For the bq24750/50A/51/51A/51B/52/53
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High Efficiency NMOS-NMOS Synchronous Buck Charger With 300 kHz Frequency
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Battery/Adapter to System Power Selector Function
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User-Selectable 2-cell, 3-cell or 4-cell Li-ion Battery Voltage
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User-Programmable Battery Regulation Voltage with External Voltage Source (4.2/cell by Default)
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User-Programmable Charge Current with External Voltage Source (3 A by Default)
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User-Programmable Input Current Limit with External Voltage Source (4.5 A by Default)
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Pin Programmable Interface for Control and Status Communications with Host
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AC Adapter Operating Range 18 V to 22 V
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Adapter Overcurrent Protection
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ACFET Overpower Protection
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LED Indication for Control and Status Signals.
SLUU283D - May 2007 - Revised March 2010
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bq24750/50A/51/51A/51B/52/53 EVM (HPA207) For Multi -Cell Synchronous
Copyright © 2007-2010, Texas Instruments Incorporated
SLUU283D - May 2007 - Revised March 2010
Contents
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List of Figures
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List of Tables
Notebook Charger and System Power Selector
User's Guide
Selector
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Summary of Contents for Texas Instruments bq24750A
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Page 1: Table Of Contents
ACFET Overpower Protection • LED Indication for Control and Status Signals. SLUU283D – May 2007 – Revised March 2010 bq24750/50A/51/51A/51B/52/53 EVM (HPA207) For Multi —Cell Synchronous Notebook Charger and System Power Selector Submit Documentation Feedback Copyright © 2007–2010, Texas Instruments Incorporated... -
Page 2: Introduction
High accuracy current sense amplifiers enable accurate measurement of the ac adapter current, allowing monitoring of overall system power. For details, see the bq24750 data sheet (SLUS735) , the bq24750A data sheet (SLUS834), the bq24751 data sheet (SLUS734), the bq24751A data sheet (SLUS756), the bq24751B data sheet (SLUS835) and the bq24753 data sheet (SLUS885). - Page 3 Jumper on 2-3 (3 cells) 2-3 (CELLS-LO) : 3 cells Open: 2 cells SLUU283D – May 2007 – Revised March 2010 bq24750/50A/51/51A/51B/52/53 EVM (HPA207) For Multi —Cell Synchronous Notebook Charger and System Power Selector Submit Documentation Feedback Copyright © 2007–2010, Texas Instruments Incorporated...
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Page 4: Test Summary
100W power dissipation. bq24750/50A/51/51A/51B/52/53 EVM (HPA207) For Multi —Cell Synchronous SLUU283D – May 2007 – Revised March 2010 Notebook Charger and System Power Selector Submit Documentation Feedback Copyright © 2007–2010, Texas Instruments Incorporated... -
Page 5: Original Test Setup For Hpa207-001, -004, Or -005
Figure 1. Original Test Setup for HPA207-001, -004, or -005 SLUU283D – May 2007 – Revised March 2010 bq24750/50A/51/51A/51B/52/53 EVM (HPA207) For Multi —Cell Synchronous Notebook Charger and System Power Selector Submit Documentation Feedback Copyright © 2007–2010, Texas Instruments Incorporated... -
Page 6: Original Test Setup For Hpa207-002, -003, -006, Or -007
3. Install JP10 (CELLS, LO) Measure → V(J6(BAT)) = 12.6V ± 200mV bq24750/50A/51/51A/51B/52/53 EVM (HPA207) For Multi —Cell Synchronous SLUU283D – May 2007 – Revised March 2010 Notebook Charger and System Power Selector Submit Documentation Feedback Copyright © 2007–2010, Texas Instruments Incorporated... -
Page 7: Test Setup For Hpa207-001, -004, Or -005
Measure → Isys = 0 ± 100mA, Ibat = 3000mA ± 200mA SLUU283D – May 2007 – Revised March 2010 bq24750/50A/51/51A/51B/52/53 EVM (HPA207) For Multi —Cell Synchronous Notebook Charger and System Power Selector Submit Documentation Feedback Copyright © 2007–2010, Texas Instruments Incorporated... -
Page 8: Pcb Layout Guideline
7. Decoupling capacitor(s) for the charger input must be placed close to Q3 drain and Q4 source. bq24750/50A/51/51A/51B/52/53 EVM (HPA207) For Multi —Cell Synchronous SLUU283D – May 2007 – Revised March 2010 Notebook Charger and System Power Selector Submit Documentation Feedback Copyright © 2007–2010, Texas Instruments Incorporated... -
Page 9: Bill Of Materials, Board Layout And Schematics
Terminal Block, 3 0.41 x 0.25 ED1515 pin, 6A, 3.5mm inch SLUU283D – May 2007 – Revised March 2010 bq24750/50A/51/51A/51B/52/53 EVM (HPA207) For Multi —Cell Synchronous Notebook Charger and System Power Selector Submit Documentation Feedback Copyright © 2007–2010, Texas Instruments Incorporated... - Page 10 1/16W, 1% R28, R29 R8, R16, 10.0k Resistor, Chip, 1/16W, 1% bq24750/50A/51/51A/51B/52/53 EVM (HPA207) For Multi —Cell Synchronous SLUU283D – May 2007 – Revised March 2010 Notebook Charger and System Power Selector Submit Documentation Feedback Copyright © 2007–2010, Texas Instruments Incorporated...
- Page 11 IC, Battery Charge QFN-28 BQ24753RH TI 53RHD Controller HPA20 Printed Circuit board SLUU283D – May 2007 – Revised March 2010 bq24750/50A/51/51A/51B/52/53 EVM (HPA207) For Multi —Cell Synchronous Notebook Charger and System Power Selector Submit Documentation Feedback Copyright © 2007–2010, Texas Instruments Incorporated...
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Page 12: Top Layer
Bill of Materials, Board Layout and Schematics www.ti.com Board Layout Figure 5. Top Layer bq24750/50A/51/51A/51B/52/53 EVM (HPA207) For Multi —Cell Synchronous SLUU283D – May 2007 – Revised March 2010 Notebook Charger and System Power Selector Submit Documentation Feedback Copyright © 2007–2010, Texas Instruments Incorporated... -
Page 13: Nd Layer
Bill of Materials, Board Layout and Schematics www.ti.com Figure 6. 2 Layer SLUU283D – May 2007 – Revised March 2010 bq24750/50A/51/51A/51B/52/53 EVM (HPA207) For Multi —Cell Synchronous Notebook Charger and System Power Selector Submit Documentation Feedback Copyright © 2007–2010, Texas Instruments Incorporated... -
Page 14: Rd Layer
Bill of Materials, Board Layout and Schematics www.ti.com Figure 7. 3 Layer bq24750/50A/51/51A/51B/52/53 EVM (HPA207) For Multi —Cell Synchronous SLUU283D – May 2007 – Revised March 2010 Notebook Charger and System Power Selector Submit Documentation Feedback Copyright © 2007–2010, Texas Instruments Incorporated... -
Page 15: Bottom Layer
Bill of Materials, Board Layout and Schematics www.ti.com Figure 8. Bottom Layer SLUU283D – May 2007 – Revised March 2010 bq24750/50A/51/51A/51B/52/53 EVM (HPA207) For Multi —Cell Synchronous Notebook Charger and System Power Selector Submit Documentation Feedback Copyright © 2007–2010, Texas Instruments Incorporated... -
Page 16: Top Assembly
Bill of Materials, Board Layout and Schematics www.ti.com Figure 9. Top Assembly bq24750/50A/51/51A/51B/52/53 EVM (HPA207) For Multi —Cell Synchronous SLUU283D – May 2007 – Revised March 2010 Notebook Charger and System Power Selector Submit Documentation Feedback Copyright © 2007–2010, Texas Instruments Incorporated... -
Page 17: Bottom Assembly
Bill of Materials, Board Layout and Schematics www.ti.com Figure 10. Bottom Assembly SLUU283D – May 2007 – Revised March 2010 bq24750/50A/51/51A/51B/52/53 EVM (HPA207) For Multi —Cell Synchronous Notebook Charger and System Power Selector Submit Documentation Feedback Copyright © 2007–2010, Texas Instruments Incorporated... -
Page 18: Top Silk
Figure 11. Top Silk Schematics The schematic is shown on the following page. bq24750/50A/51/51A/51B/52/53 EVM (HPA207) For Multi —Cell Synchronous SLUU283D – May 2007 – Revised March 2010 Notebook Charger and System Power Selector Submit Documentation Feedback Copyright © 2007–2010, Texas Instruments Incorporated... - Page 19 Bill of Materials, Board Layout and Schematics www.ti.com SLUU283D – May 2007 – Revised March 2010 bq24750/50A/51/51A/51B/52/53 EVM (HPA207) For Multi —Cell Synchronous Notebook Charger and System Power Selector Submit Documentation Feedback Copyright © 2007–2010, Texas Instruments Incorporated...
- Page 20 Bill of Materials, Board Layout and Schematics www.ti.com bq24750/50A/51/51A/51B/52/53 EVM (HPA207) For Multi —Cell Synchronous SLUU283D – May 2007 – Revised March 2010 Notebook Charger and System Power Selector Submit Documentation Feedback Copyright © 2007–2010, Texas Instruments Incorporated...
- Page 21 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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Page 22: Important Notice
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. - Page 23 Mouser Electronics Authorized Distributor Click to View Pricing, Inventory, Delivery & Lifecycle Information: Texas Instruments BQ24750EVM BQ24751EVM BQ24751AEVM BQ24750AEVM BQ24751BEVM BQ24753EVM...
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