Texas Instruments bq25040 User Manual Download Page 10

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. As such, the goods being provided are not intended to be complete
in terms of required design-, marketing-, and/or manufacturing-related protective considerations, including product safety and environmental
measures typically found in end products that incorporate such semiconductor components or circuit boards. This evaluation board/kit does
not fall within the scope of the European Union directives regarding electromagnetic compatibility, restricted substances (RoHS), recycling
(WEEE), FCC, CE or UL, and therefore may not meet the technical requirements of these directives or other related directives.

Should this evaluation board/kit not meet the specifications indicated in the User’s Guide, the board/kit may be returned within 30 days from
the date of delivery for a full refund. THE FOREGOING WARRANTY IS THE EXCLUSIVE WARRANTY MADE BY SELLER TO BUYER
AND IS IN LIEU OF ALL OTHER WARRANTIES, EXPRESSED, IMPLIED, OR STATUTORY, INCLUDING ANY WARRANTY OF
MERCHANTABILITY OR FITNESS FOR ANY PARTICULAR PURPOSE.

The user assumes all responsibility and liability for proper and safe handling of the goods. Further, the user indemnifies TI from all claims
arising from the handling or use of the goods. Due to the open construction of the product, it is the user’s responsibility to take any and all
appropriate precautions with regard to electrostatic discharge.

EXCEPT TO THE EXTENT OF THE INDEMNITY SET FORTH ABOVE, NEITHER PARTY SHALL BE LIABLE TO THE OTHER FOR ANY
INDIRECT, SPECIAL, INCIDENTAL, OR CONSEQUENTIAL DAMAGES.

TI currently deals with a variety of customers for products, and therefore our arrangement with the user

is not exclusive.

TI assumes

no liability for applications assistance, customer product design, software performance, or infringement of patents or

services described herein.

Please read the User’s Guide and, specifically, the Warnings and Restrictions notice in the User’s Guide prior to handling the product. This
notice contains important safety information about temperatures and voltages. For additional information on TI’s environmental and/or
safety programs, please contact the TI application engineer or visit

www.ti.com/esh

.

No license is granted under any patent right or other intellectual property right of TI covering or relating to any machine, process, or
combination in which such TI products or services might be or are used.

FCC Warning

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. It generates, uses, and can radiate radio

frequency energy and has not been tested for compliance with the limits of computing devices pursuant to part 15 of FCC rules, which are
designed to provide reasonable protection against radio frequency interference. Operation of this equipment in other environments may
cause interference with radio communications, in which case the user at his own expense will be required to take whatever measures may
be required to correct this interference.

EVM WARNINGS AND RESTRICTIONS

It is important to operate this EVM within the input voltage range of 0 V to 30 V and the output voltage range of 0 V to 4.25 V.

Exceeding the specified input range may cause unexpected operation and/or irreversible damage to the EVM. If there are questions
concerning the input range, please contact a TI field representative prior to connecting the input power.

Applying loads outside of the specified output range may result in unintended operation and/or possible permanent damage to the EVM.
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 85

°

C. The EVM is designed to operate

properly with certain components above 85

°

C as long as the input and output ranges are maintained. These components include but are

not limited to linear regulators, switching transistors, pass transistors, and current sense resistors. These types of devices can be identified
using the EVM schematic located in the EVM User's Guide. When placing measurement probes near these devices during operation,
please be aware that these devices may be very warm to the touch.

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

Copyright © 2009, Texas Instruments Incorporated

Summary of Contents for bq25040

Page 1: ...on 2 2 Considerations When Testing the bq25040 IC 2 3 Performance Specification Summary 2 4 Test Summary 3 4 1 Equipment 3 4 2 Equipment and EVM Setup 3 4 3 Test Procedure 3 5 Schematics 6 6 Layout 7...

Page 2: ...on the LDO output does not exceed USB specifications The USB500 mode is set for a 400 mA current limit so that the LDO load does not cause the USB500 limit to be exceeded The LEDs can be run from any...

Page 3: ...re 1 if desired Figure 1 Evaluation Setup Charging Circuit Shown Pulse Programming Circuit not Shown 1 Make sure setup procedure was followed 2 Turn on P S 1 preset to 5 1 Vdc 3 Verify that the PG D1...

Page 4: ...shunt if this happens 9 Switch S1 DOWN then UP to program charger to USB100 mode Figure 3 10 This procedure can be repeated steps 7 to 9 for the shunt on any jumper JMP1 through JMP5 to program one to...

Page 5: ...Timing of Program Change From 0 4 A to 0 1 A Figure 4 Power Up Sequence Shows Timing Between Vin Viset Vpg and Vchg C1 Chg JMP1 C4 PG JMP8 LEDs Pulled Up to 4 15 V Battery SLUU358 April 2009 1 1 A Sin...

Page 6: ...Basic EVM Charger Circuit Figure 6 Circuit for Programming Pulse Typically Done by Host 1 1 A Single Input Single Cell Li Ion Battery Charger With 50 mA LDO and 2 3 A Production Test Support 6 SLUU35...

Page 7: ...com Layout Figure 7 Assembly Layer Figure 8 Top Copper Layer SLUU358 April 2009 1 1 A Single Input Single Cell Li Ion Battery Charger With 50 mA LDO and 2 3 A Production Test Support 7 Submit Documen...

Page 8: ...Block 2 pin 6 A 3 5mm 0 27 0 25 inch ED555 2DS OST 8 JMP1JMP8 PTC36SAAN Header Male 2 pin 100mil spacing 0 100 inch 2 PTC36SAAN Sullins 36 pin strip 1 Q1 MMBT3904LT1G Bipolar NPN 40 V 200 mA 225 mW SO...

Page 9: ...5 TPS76133DBV TI 1 U3 SN74LV175APW IC Quad D Flip Flop with Clear TSSOP SN74LV175APW TI 1 U4 MC74HC74ADTR2G IC Dual D Flip Flop with Set and Reset TSSOP MC74HC74ADTR2G On Semi 1 U5 SN74LVC2G132DCT IC...

Page 10: ...duct This notice contains important safety information about temperatures and voltages For additional information on TI s environmental and or safety programs please contact the TI application enginee...

Page 11: ...ce TI is not responsible or liable for any such statements TI products are not authorized for use in safety critical applications such as life support where a failure of the TI product would reasonabl...

Page 12: ...Mouser Electronics Authorized Distributor Click to View Pricing Inventory Delivery Lifecycle Information Texas Instruments BQ25040EVM...

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