Texas Instruments BQ24800EVM User Manual Download Page 19

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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. This kit is not a finished product and when assembled may not be resold or
otherwise marketed unless all required FCC equipment authorizations are first obtained. Operation is subject to the condition
that this product not cause harmful interference to licensed radio stations and that this product accept harmful interference.
Unless the assembled kit is designed to operate under part 15, part 18 or part 95 of this chapter, the operator of the kit must
operate under the authority of an FCC license holder or must secure an experimental authorization under part 5 of this chapter.

3.1.2

For EVMs annotated as FCC – FEDERAL COMMUNICATIONS COMMISSION Part 15 Compliant:

CAUTION

This device complies with part 15 of the FCC Rules. Operation is subject to the following two conditions: (1) This device may not
cause harmful interference, and (2) this device must accept any interference received, including interference that may cause
undesired operation.

Changes or modifications not expressly approved by the party responsible for compliance could void the user's authority to
operate the equipment.

FCC Interference Statement for Class A EVM devices

NOTE: This equipment has been tested and found to comply with the limits for a Class A digital device, pursuant to part 15 of
the FCC Rules. These limits are designed to provide reasonable protection against harmful interference when the equipment is
operated in a commercial environment. This equipment generates, uses, and can radiate radio frequency energy and, if not
installed and used in accordance with the instruction manual, may cause harmful interference to radio communications.
Operation of this equipment in a residential area is likely to cause harmful interference in which case the user will be required to
correct the interference at his own expense.

FCC Interference Statement for Class B EVM devices

NOTE: This equipment has been tested and found to comply with the limits for a Class B digital device, pursuant to part 15 of
the FCC Rules. These limits are designed to provide reasonable protection against harmful interference in a residential
installation. This equipment generates, uses and can radiate radio frequency energy and, if not installed and used in accordance
with the instructions, may cause harmful interference to radio communications. However, there is no guarantee that interference
will not occur in a particular installation. If this equipment does cause harmful interference to radio or television reception, which
can be determined by turning the equipment off and on, the user is encouraged to try to correct the interference by one or more
of the following measures:

Reorient or relocate the receiving antenna.

Increase the separation between the equipment and receiver.

Connect the equipment into an outlet on a circuit different from that to which the receiver is connected.

Consult the dealer or an experienced radio/TV technician for help.

3.2

Canada

3.2.1

For EVMs issued with an Industry Canada Certificate of Conformance to RSS-210 or RSS-247

Concerning EVMs Including Radio Transmitters:

This device complies with Industry Canada license-exempt RSSs. Operation is subject to the following two conditions:

(1) this device may not cause interference, and (2) this device must accept any interference, including interference that may
cause undesired operation of the device.

Concernant les EVMs avec appareils radio:

Le présent appareil est conforme aux CNR d'Industrie Canada applicables aux appareils radio exempts de licence. L'exploitation
est autorisée aux deux conditions suivantes: (1) l'appareil ne doit pas produire de brouillage, et (2) l'utilisateur de l'appareil doit
accepter tout brouillage radioélectrique subi, même si le brouillage est susceptible d'en compromettre le fonctionnement.

Concerning EVMs Including Detachable Antennas:

Under Industry Canada regulations, this radio transmitter may only operate using an antenna of a type and maximum (or lesser)
gain approved for the transmitter by Industry Canada. To reduce potential radio interference to other users, the antenna 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 by Industry Canada to operate with the antenna types
listed in the user guide with the maximum permissible gain and required antenna impedance for each antenna type indicated.
Antenna types not included in this list, having a gain greater than the maximum gain indicated for that type, are strictly prohibited
for use with this device.

Summary of Contents for BQ24800EVM

Page 1: ...3 1 4 Recommended Operating Conditions 4 2 Test Summary 4 2 1 Equipment 4 2 2 Equipment Setup 5 3 Procedure 7 3 1 AC Adapter Detection Threshold 7 3 2 Charger Parameter Settings 7 3 3 Charge Current a...

Page 2: ...mit Documentation Feedback Copyright 2020 Texas Instruments Incorporated BQ24800 EVM 4 EV2400 and BQ24800 EVM Connections 5 5 BQ24800EVM Bill of Materials 15 Trademarks Microsoft Windows are registere...

Page 3: ...parameter settings of the EVM Table 2 Controls and Key Parameters Settings Jack Description Factory Setting JP1 Connect battery positive input BAT to TPS3898 SENSE pin through resistor divider R33 R34...

Page 4: ...ain the equipment and the equipment setup 2 1 Equipment 2 1 1 Power Supplies Power Supply 1 PS 1 a power supply capable of supplying 20 V at 5 A is required Power Supply 2 PS 2 a power supply capable...

Page 5: ...file already exists and is newer do not overwrite the newer file Click Finish 2 2 Equipment Setup Set power supply 1 PS 1 for 0 V 100 mVDC with the current limit set to 5 A Turn off supply Connect PS...

Page 6: ...vious steps the test setup for BMS031 appears as shown in Figure 2 Figure 2 Original Test Setup for BQ24800 EVM BMS031 Turn on the computer Launch the bqstudio evaluation software and select charger a...

Page 7: ...in software window click the Refresh button on the top right corner Make sure there is no error information 1 Type 512 mA in ChargeCurrent Register and click OK This sets the battery charge current re...

Page 8: ...easure IIN 4100 mA 400 mA Measure V TP14 IADP 820 mV 100 mV 5 Turn off the Load 1 Measure ISYS 0 100 mA IBAT 3000 mA 300 mA 3 4 Hybrid Boost Mode Use the following steps for hybrid boost mode 1 Enter...

Page 9: ...threshold for battery boost to 10 24 V 5 Reduce the voltage of PS 2 to 9 0 V to enter battery only boost mode Measure V TP3 VBATT 9 0 V 300 mV Measure V TP2 VSYS 12 0 V 600 mV 3 6 Power Path Selection...

Page 10: ...xt to the inductor output Route the sense leads connected across the sensing resistor back to the IC in same layer close to each other minimize loop area and do not route the sense leads through a hig...

Page 11: ...ight 2020 Texas Instruments Incorporated BQ24800 EVM 5 Board Layout Schematic and Bill of Materials This section contains the BQ24800EVM PCB layouts schematic and bill of materials 5 1 BQ24800EVM PCB...

Page 12: ...Layout Schematic and Bill of Materials www ti com 12 SLUUC60 February 2020 Submit Documentation Feedback Copyright 2020 Texas Instruments Incorporated BQ24800 EVM Figure 7 Mid Layer 1 Figure 8 Mid La...

Page 13: ...om Board Layout Schematic and Bill of Materials 13 SLUUC60 February 2020 Submit Documentation Feedback Copyright 2020 Texas Instruments Incorporated BQ24800 EVM Figure 9 Bottom Layer Figure 10 Bottom...

Page 14: ...terials www ti com 14 SLUUC60 February 2020 Submit Documentation Feedback Copyright 2020 Texas Instruments Incorporated BQ24800 EVM 5 2 Schematic The BQ24800EVM Figure 11 schematic is provided for ref...

Page 15: ...25 V 10 X7R 0603 0603 C0603C104K3RACTU Kemet C35 1 1 F CAP CERM 1 F 35 V 20 X5R 0402 0402 GRM155R6YA105ME11D MuRata C36 1 2 2 F CAP CERM 2 2 F 10 V 20 X5R 0402 0402 885012105013 Wurth Elektronik C37 C...

Page 16: ...oint Miniature Red TH Red Miniature Testpoint 5000 Keystone TP2 TP4 TP6 3 Test Point Compact SMT Testpoint_Keyston e_Compact 5016 Keystone TP7 TP8 TP9 TP10 TP11 TP12 TP13 TP14 TP15 TP16 TP17 TP18 TP19...

Page 17: ...mit Documentation Feedback Copyright 2020 Texas Instruments Incorporated BQ24800 EVM Table 5 BQ24800EVM Bill of Materials continued Designator Qty Value Description Package Reference PartNumber Manufa...

Page 18: ...ther than TI b the nonconformity resulted from User s design specifications or instructions for such EVMs or improper system design or c User has not paid on time Testing and other quality control tec...

Page 19: ...These limits are designed to provide reasonable protection against harmful interference in a residential installation This equipment generates uses and can radiate radio frequency energy and if not in...

Page 20: ...instructions set forth by Radio Law of Japan which includes but is not limited to the instructions below with respect to EVMs which for the avoidance of doubt are stated strictly for convenience and s...

Page 21: ...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 electr...

Page 22: ...R DAMAGES ARE CLAIMED THE EXISTENCE OF MORE THAN ONE CLAIM SHALL NOT ENLARGE OR EXTEND THIS LIMIT 9 Return Policy Except as otherwise provided TI does not offer any refunds returns or exchanges Furthe...

Page 23: ...e resources are subject to change without notice TI grants you permission to use these resources only for development of an application that uses the TI products described in the resource Other reprod...

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