Texas Instruments bq24195/L Скачать руководство пользователя страница 23

EVALUATION BOARD/KIT/MODULE (EVM)

WARNINGS, RESTRICTIONS AND DISCLAIMERS

For Feasibility Evaluation Only, in Laboratory/Development Environments. Unless otherwise indicated, this EVM is not a finished
electrical equipment and not intended for consumer use. It is intended solely for use for preliminary feasibility evaluation in
laboratory/development environments by technically qualified electronics experts who are familiar with the dangers and application risks
associated with handling electrical mechanical components, systems and subsystems. It should not be used as all or part of a finished end
product.

Your Sole Responsibility and Risk. You acknowledge, represent and agree that:

1.

You have unique knowledge concerning Federal, State and local regulatory requirements (including but not limited to Food and Drug
Administration regulations, if applicable) which relate to your products and which relate to your use (and/or that of your employees,
affiliates, contractors or designees) of the EVM for evaluation, testing and other purposes.

2.

You have full and exclusive responsibility to assure the safety and compliance of your products with all such laws and other applicable
regulatory requirements, and also to assure the safety of any activities to be conducted by you and/or your employees, affiliates,
contractors or designees, using the EVM. Further, you are responsible to assure that any interfaces (electronic and/or mechanical)
between the EVM and any human body are designed with suitable isolation and means to safely limit accessible leakage currents to
minimize the risk of electrical shock hazard.

3.

You will employ reasonable safeguards to ensure that your use of the EVM will not result in any property damage, injury or death, even
if the EVM should fail to perform as described or expected.

4.

You will take care of proper disposal and recycling of the EVM’s electronic components and packing materials.

Certain Instructions. It is important to operate this EVM within TI’s recommended specifications and environmental considerations per the
user guidelines. Exceeding the specified EVM ratings (including but not limited to input and output voltage, current, power, and
environmental ranges) may cause property damage, personal injury or death. If there are questions concerning these ratings please contact
a TI field representative prior to connecting interface electronics including input power and intended loads. Any loads applied outside of the
specified output range may result in unintended and/or inaccurate operation and/or possible permanent damage to the EVM and/or
interface electronics. Please consult the EVM User's Guide prior to connecting any load to the EVM output. If there is uncertainty as to the
load specification, please contact a TI field representative. During normal operation, some circuit components may have case temperatures
greater than 60°C as long as the input and output are maintained at a normal ambient operating temperature. These components include
but are not limited to linear regulators, switching transistors, pass transistors, and current sense resistors which can be identified using the
EVM schematic located in the EVM User's Guide. When placing measurement probes near these devices during normal operation, please
be aware that these devices may be very warm to the touch. As with all electronic evaluation tools, only qualified personnel knowledgeable
in electronic measurement and diagnostics normally found in development environments should use these EVMs.

Agreement to Defend, Indemnify and Hold Harmless. You agree to defend, indemnify and hold TI, its licensors and their representatives
harmless from and against any and all claims, damages, losses, expenses, costs and liabilities (collectively, "Claims") arising out of or in
connection with any use of the EVM that is not in accordance with the terms of the agreement. This obligation shall apply whether Claims
arise under law of tort or contract or any other legal theory, and even if the EVM fails to perform as described or expected.

Safety-Critical or Life-Critical Applications. If you intend to evaluate the components for possible use in safety critical applications (such
as life support) where a failure of the TI product would reasonably be expected to cause severe personal injury or death, such as devices
which are classified as FDA Class III or similar classification, then you must specifically notify TI of such intent and enter into a separate
Assurance and Indemnity Agreement.

Mailing Address: Texas Instruments, Post Office Box 655303, Dallas, Texas 75265

Copyright © 2012, Texas Instruments Incorporated

Содержание bq24195/L

Страница 1: ...ow of the bq24195x Evaluation Software for bq24195 L 6 4 CHG Mode Ripple and Duty Cycle VBUS 5 V VBAT 3 7 V 8 5 Boost Mode Ripple and Duty Cycle VBAT 3 7 V 9 6 bq24195 L EVM Top Layer 11 7 bq24195 L E...

Страница 2: ...a Thevinen equivalent drive of 72k and for Q2 OTG ckt is 35k allowing the OTG signal to be pulled low disables Boost Mode prior to the input voltage being applied 1 3 General Descriptions The bq24195...

Страница 3: ...VM Table 3 Recommended Operating Conditions Symbol Description MIN TYP MAX Unit Supply voltage VIN Input voltage from AC adapter input 3 9 5 12 6 V Battery voltage VBAT Voltage applied at VBAT termina...

Страница 4: ...rt and a USB cable The bq2419xEVM evaluation software must be properly installed 2 1 6 USB to GPIO Communication Kit HPA172 USB Interface Adapter 2 1 7 Software Unzip the bq2419xEVM_GUI zip and double...

Страница 5: ...5 V Turn off disable Load Connect Load in series with a current meter multimeter ground side to J2 BAT and GND as shown in Figure 2 5 Connect a voltage meter across J2 BAT and GND 6 Connect the HPA17...

Страница 6: ...ETUP steps are followed ILIM Setting Set the potentiometer to its lowest value for max input current by connecting an ohm meter between point TP9 and ground Turn the screw on the potentiometer counter...

Страница 7: ...Voltage Limit to 4 208 V 7 Set Fast Charge Current ICHG to 512 mA 8 Set Pre Charge Current to 256 mA 9 Deselect Enable Termination see the following image 10 Click the Read button twice Observe Everyt...

Страница 8: ...N 500 mA 200 mA 2 3 2 5 Verify Scope Measurements See Figure 4 500 ns div C1 AC coupled 20 mV div Vac_PMID TP20 to GND Ripple excluding high frequency spikes 10 mV C2 5 V div Vdc_SW TP2 Frequency betw...

Страница 9: ...rop down window 6 Verify VPMID to GND on J5 is between 4 9 V and 5 3 V 7 Verify scope measurement Figure 5 C1 AC coupled 20 mV div Vac_PMID TP20 to GND Ripple excluding high frequency spikes C2 5 V di...

Страница 10: ...with a short copper trace connection or GND plane 4 Route analog ground separately from power ground Connect analog ground and connect power ground separately Connect analog ground and power ground t...

Страница 11: ...ic and Bill of Materials 4 1 Board Layout Figure 6 through Figure 11 illustrate the board layouts for this EVM Figure 6 bq24195 L EVM Top Layer 11 SLUUA18 October 2012 bq24195 L EVM PWR193 User s Guid...

Страница 12: ...Schematic and Bill of Materials www ti com Figure 7 bq24195 L EVM Second Layer 12 bq24195 L EVM PWR193 User s Guide SLUUA18 October 2012 Submit Documentation Feedback Copyright 2012 Texas Instruments...

Страница 13: ...oard Layout Schematic and Bill of Materials Figure 8 bq24195 L EVM Third Layer 13 SLUUA18 October 2012 bq24195 L EVM PWR193 User s Guide Submit Documentation Feedback Copyright 2012 Texas Instruments...

Страница 14: ...Schematic and Bill of Materials www ti com Figure 9 bq24195 L EVM Bottom Layer 14 bq24195 L EVM PWR193 User s Guide SLUUA18 October 2012 Submit Documentation Feedback Copyright 2012 Texas Instruments...

Страница 15: ...ard Layout Schematic and Bill of Materials Figure 10 bq24195 L EVM Top Assembly 15 SLUUA18 October 2012 bq24195 L EVM PWR193 User s Guide Submit Documentation Feedback Copyright 2012 Texas Instruments...

Страница 16: ...hematic and Bill of Materials www ti com Figure 11 bq24195 L EVM Bottom Assembly 16 bq24195 L EVM PWR193 User s Guide SLUUA18 October 2012 Submit Documentation Feedback Copyright 2012 Texas Instrument...

Страница 17: ...3 4 5 6 7 8 9 10 J3 R23 R6 R11 10 0k JP4 R4 200 JP6 JP3 R24 768 R15 10 0k C13 R1 0 R2 0 C15 10uF J7 C3 C12 C16 10uF C17 C18 TP19 L1 2 2uH JP1 3 1 2 5 6 7 4 8 Q1 CSD25302Q2 R16 10 0k R5 100k R17 10 0k...

Страница 18: ...54 0 307 in A USB B M5 9 9 JP1 JP2 JP3 PEC02SAAN Header Male 2 pin 100mil spacing 0 100 in 2 PEC02SAAN Sullins JP4 JP5 JP6 JP7 JP8 JP9 1 1 L1 2 2 H Inductor SMT 5 A 37 m 0 204 0 216 in IHLP2020BZER2R2...

Страница 19: ...0 044 0 20 in SJ 5303 3M Notes 1 These assemblies are ESD sensitive observe ESD precautions 2 These assemblies must be clean and free from flux and all contaminants Use of no clean flux is not accept...

Страница 20: ...ncy energy and has not been tested for compliance with the limits of computing devices pursuant to part 15 of FCC or ICES 003 rules which are designed to provide reasonable protection against radio fr...

Страница 21: ...na type and its gain should be so chosen that the equivalent isotropically radiated power e i r p is not more than that necessary for successful communication This radio transmitter has been approved...

Страница 22: ...roduct only after you obtained the license of Test Radio Station as provided in Radio Law of Japan with respect to this product or 3 Use of this product only after you obtained the Technical Regulatio...

Страница 23: ...property damage personal injury or death If there are questions concerning these ratings please contact a TI field representative prior to connecting interface electronics including input power and in...

Страница 24: ...egulatory and safety related requirements concerning its products and any use of TI components in its applications notwithstanding any applications related information or support that may be provided...

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