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EVM User's Guide: BQ25173-Q1 BQ25173Q1EVM
BQ25173-Q1 Evaluation Module
Description
The BQ25173-Q1 EVM contains the BQ25173-Q1 IC,
LDO TPS7B8133 and support circuits needed operate
the evaluation board. Only external power supply is
needed for 2.5 and 5 V setting, which corresponds
to 1S and 2S. Charge Voltage VREG can be set to
4 values, 2.5V and 5 V with J7 and 7.5V and 10 V
with R18 and R17. Charge current is set by R3 (ISET)
value from 10 mA to 800 mA. A fix value of 400 mA is
selected by JP3.
SLUUCX1 – AUGUST 2023
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Features
Support 1 to 4 cell super capacitors
Supports charging from 0 V
Input voltage up to 40 V tolerant
External resistor programmable operation
– FB pin to adjust super capacitor regulation
– ISET to set charge current from 10 mA to 800
Applications
Smart meter
Bar code scanner
Portable medical equipment
Dashboard camera
Copyright © 2023 Texas Instruments Incorporated
voltage
mA
BQ25173-Q1 Evaluation Module
Description
1

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Summary of Contents for Texas Instruments BQ25173-Q1

  • Page 1 Description EVM User's Guide: BQ25173-Q1 BQ25173Q1EVM BQ25173-Q1 Evaluation Module Description Features The BQ25173-Q1 EVM contains the BQ25173-Q1 IC, • Support 1 to 4 cell super capacitors LDO TPS7B8133 and support circuits needed operate • Supports charging from 0 V the evaluation board.
  • Page 2: Kit Contents

    1.1 Introduction The Texas Instruments BQ25173-Q1 is a linear charger IC for 1- to 4-cell super capacitor. Charging voltage can be adjusted using external resistor divider between OUT and FB. Charging current can be set from 10 mA to 800 mA with external resistor on ISET.
  • Page 3: Best Practices

    Set voltage to 2.5V or 5 V. 2.2 Printed Circuit Board Assembly The BQ25173-Q1EVM PCB contains the BQ25173-Q1 IC, LDO TPS7B8133 and support circuits. This board contains several jumpers and connectors. R3 can be used to adjust charge current (ISET) value from 10 mA to 800 mA.
  • Page 4 The device enters thermal regulation at too high an input to output voltage drop and current. Thermal regulation begins reducing current at 125 °C; at 150 °C device shuts off. For thermal calculation, refer to the Thermal Package section of the BQ25173-Q1 800-mA Linear Charger for 1- to 4-Cell Super capacitor data sheet (SLUSF68).
  • Page 5 Hardware Design Files 3 Hardware Design Files SLUUCX1 – AUGUST 2023 BQ25173-Q1 Evaluation Module Submit Document Feedback Copyright © 2023 Texas Instruments Incorporated...
  • Page 6 280k 115k 52.3k 71.5k 10V / 4S 2.5V / 1S 5V / 2S 7.5V / 3S 50k Ohm ISET-ADJ SH-JP7 Figure 3-1. BQ25173-Q1EVM Schematic BQ25173-Q1 Evaluation Module SLUUCX1 – AUGUST 2023 Submit Document Feedback Copyright © 2023 Texas Instruments Incorporated...
  • Page 7: Board Layout

    Hardware Design Files 3.2 Board Layout The board layout is shown in Figure 3-2 Figure 3-10. Figure 3-2. Top Overlay Figure 3-3. Top Solder SLUUCX1 – AUGUST 2023 BQ25173-Q1 Evaluation Module Submit Document Feedback Copyright © 2023 Texas Instruments Incorporated...
  • Page 8 Hardware Design Files www.ti.com Figure 3-4. Top Layer Figure 3-5. Bottom Layer BQ25173-Q1 Evaluation Module SLUUCX1 – AUGUST 2023 Submit Document Feedback Copyright © 2023 Texas Instruments Incorporated...
  • Page 9 Hardware Design Files Figure 3-6. Bottom Solder Figure 3-7. Bottom Overlay SLUUCX1 – AUGUST 2023 BQ25173-Q1 Evaluation Module Submit Document Feedback Copyright © 2023 Texas Instruments Incorporated...
  • Page 10 Hardware Design Files www.ti.com Figure 3-8. Signal Layer 1 Figure 3-9. Signal Layer 2 BQ25173-Q1 Evaluation Module SLUUCX1 – AUGUST 2023 Submit Document Feedback Copyright © 2023 Texas Instruments Incorporated...
  • Page 11 Hardware Design Files Figure 3-10. Drill Drawing SLUUCX1 – AUGUST 2023 BQ25173-Q1 Evaluation Module Submit Document Feedback Copyright © 2023 Texas Instruments Incorporated...
  • Page 12: Bill Of Materials

    280k RES, 280 k, 1%, 0.1 W, 0603 RC0603FR-07 Yageo 0603 280KL 115k RES, 115 k, 1%, 0.1 W, 0603 RC0603FR-07 Yageo 0603 115KL BQ25173-Q1 Evaluation Module SLUUCX1 – AUGUST 2023 Submit Document Feedback Copyright © 2023 Texas Instruments Incorporated...
  • Page 13 Venkel 1/10W Chip Resistor 000T 0603 (1608 Metric) - Thick Film 4 Additional Information Trademarks All trademarks are the property of their respective owners. SLUUCX1 – AUGUST 2023 BQ25173-Q1 Evaluation Module Submit Document Feedback Copyright © 2023 Texas Instruments Incorporated...
  • Page 14 STANDARD TERMS FOR EVALUATION MODULES Delivery: TI delivers TI evaluation boards, kits, or modules, including any accompanying demonstration software, components, and/or documentation which may be provided together or separately (collectively, an “EVM” or “EVMs”) to the User (“User”) in accordance with the terms set forth herein.
  • Page 15 www.ti.com Regulatory Notices: 3.1 United States 3.1.1 Notice applicable to EVMs not FCC-Approved: FCC NOTICE: This kit is designed to allow product developers to evaluate electronic components, circuitry, or software associated with the kit to determine whether to incorporate such items in a finished product and software developers to write software applications for use with the end product.
  • Page 16 www.ti.com Concernant les EVMs avec antennes détachables Conformément à la réglementation d'Industrie Canada, le présent émetteur radio peut fonctionner avec une antenne d'un type et d'un gain maximal (ou inférieur) approuvé pour l'émetteur par Industrie Canada. Dans le but de réduire les risques de brouillage radioélectrique à...
  • Page 17 www.ti.com EVM Use Restrictions and Warnings: 4.1 EVMS ARE NOT FOR USE IN FUNCTIONAL SAFETY AND/OR SAFETY CRITICAL EVALUATIONS, INCLUDING BUT NOT LIMITED TO EVALUATIONS OF LIFE SUPPORT APPLICATIONS. 4.2 User must read and apply the user guide and other available documentation provided by TI regarding the EVM prior to handling or using the EVM, including without limitation any warning or restriction notices.
  • Page 18 Notwithstanding the foregoing, any judgment may be enforced in any United States or foreign court, and TI may seek injunctive relief in any United States or foreign court. Mailing Address: Texas Instruments, Post Office Box 655303, Dallas, Texas 75265 Copyright © 2023, Texas Instruments Incorporated...
  • Page 19 TI products. TI’s provision of these resources does not expand or otherwise alter TI’s applicable warranties or warranty disclaimers for TI products. TI objects to and rejects any additional or different terms you may have proposed. IMPORTANT NOTICE Mailing Address: Texas Instruments, Post Office Box 655303, Dallas, Texas 75265 Copyright © 2023, Texas Instruments Incorporated...

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