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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. All products are sold subject to TI’s terms and conditions of sale supplied at the time of order acknowledgment.

TI warrants performance of its hardware products to the specifications applicable at the time of sale in accordance with TI’s
standard warranty. Testing and other quality control techniques are used to the extent TI deems necessary to support this
warranty. Except where mandated by government requirements, testing of all parameters of each product is not necessarily
performed.

TI assumes no liability for applications assistance or customer product design. Customers are responsible for their products and
applications using TI components. To minimize the risks associated with customer products and applications, customers should
provide adequate design and operating safeguards.

TI does not warrant or represent that any license, either express or implied, is granted under any TI patent right, copyright, mask
work right, or other TI intellectual property right relating to any combination, machine, or process in which TI products or services
are used. Information published by TI regarding third-party products or services does not constitute a license from TI to use such
products or services or a warranty or endorsement thereof. Use of such information may require a license from a third party under
the patents or other intellectual property of the third party, or a license from TI under the patents or other intellectual property of TI.

Reproduction of information in TI data books or data sheets is permissible only if reproduction is without alteration and is
accompanied by all associated warranties, conditions, limitations, and notices. Reproduction of this information with alteration is an
unfair and deceptive business practice. TI is not responsible or liable for such altered documentation.

Resale of TI products or services with statements different from or beyond the parameters stated by TI for that product or service
voids all express and any implied warranties for the associated TI product or service and is an unfair and deceptive business
practice. 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
reasonably be expected to cause severe personal injury or death, unless officers of the parties have executed an agreement
specifically governing such use. Buyers represent that they have all necessary expertise in the safety and regulatory ramifications
of their applications, and acknowledge and agree that they are solely responsible for all legal, regulatory and safety-related
requirements concerning their products and any use of TI products in such safety-critical applications, notwithstanding any
applications-related information or support that may be provided by TI. Further, Buyers must fully indemnify TI and its
representatives against any damages arising out of the use of TI products in such safety-critical applications.

TI products are neither designed nor intended for use in military/aerospace applications or environments unless the TI products are
specifically designated by TI as military-grade or "enhanced plastic." Only products designated by TI as military-grade meet military
specifications. Buyers acknowledge and agree that any such use of TI products which TI has not designated as military-grade is
solely at the Buyer's risk, and that they are solely responsible for compliance with all legal and regulatory requirements in
connection with such use.

TI products are neither designed nor intended for use in automotive applications or environments unless the specific TI products
are designated by TI as compliant with ISO/TS 16949 requirements. Buyers acknowledge and agree that, if they use any
non-designated products in automotive applications, TI will not be responsible for any failure to meet such requirements.

Following are URLs where you can obtain information on other Texas Instruments products and application solutions:

Products

Applications

Amplifiers

amplifier.ti.com

Audio

www.ti.com/audio

Data Converters

dataconverter.ti.com

Automotive

www.ti.com/automotive

DSP

dsp.ti.com

Broadband

www.ti.com/broadband

Interface

interface.ti.com

Digital Control

www.ti.com/digitalcontrol

Logic

logic.ti.com

Military

www.ti.com/military

Power Mgmt

power.ti.com

Optical Networking

www.ti.com/opticalnetwork

Microcontrollers

microcontroller.ti.com

Security

www.ti.com/security

RFID

www.ti-rfid.com

Telephony

www.ti.com/telephony

Low Power

www.ti.com/lpw

Video & Imaging

www.ti.com/video

Wireless

Wireless

www.ti.com/wireless

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

Copyright © 2007, Texas Instruments Incorporated

Содержание bq24070

Страница 1: ...er supply The charger is programmed from the factory to deliver 1 A of charging current Contents 1 Introduction 2 2 Considerations When Testing and Using bq24070 ICs 2 3 Performance Specification Summ...

Страница 2: ...sconnected but the internal battery FET connects the battery to VOUT There are two types of OUT pin short circuit one associated with the input IN pin VOUT 1 V and the other associated with the BAT pi...

Страница 3: ...1 W VBAT IBAT VIN VLDO ILDO 1 The HPA180 bq24070 thermal design is optimized 8 vias 0 031 inch PWB 2 oz copper to give JA 27 C W This section covers the setup and tests performed in evaluating the EVM...

Страница 4: ...om the input 18 Disconnect the 5 25 VDC input supply from the UUT IN input Verify on the scope that VOUT does not drop out Verify VOUT is within 50 mV of VBAT and D2 STAT1 and D1 PG LEDs turn off This...

Страница 5: ...at the charging terminates when the battery current tapers to C 10 or 100 mA 1 A 10 programmed charge current divided by 10 Verify D2 STAT1 turns off High and D3 STAT2 turns on Low 28 If a load is app...

Страница 6: ...www ti com 5 Schematic S0200 01 Schematic Figure 2 bq24070 EVM Schematic bq24070 1 5 A Single Chip Li Ion and Li Pol Charge Management IC EVM 6 SLUU248 May 2006 Submit Documentation Feedback...

Страница 7: ...op assembly view of the EVM Figure 5 shows the top etch layer of the EVM Figure 6 shows the board second etch layer of the EVM Figure 7 shows the board third etch layer of the EVM Figure 8 shows the b...

Страница 8: ...30 1 79 K003 2 30 1 79 Physical Layouts Figure 4 Top Silkscreen Figure 5 Board Layout Top Etch Layer 8 bq24070 1 5 A Single Chip Li Ion and Li Pol Charge Management IC EVM SLUU248 May 2006 Submit Docu...

Страница 9: ...005 2 30 1 79 Physical Layouts Figure 6 Board Layout Second Etch Layer Figure 7 Board Layout Third Etch Layer SLUU248 May 2006 bq24070 1 5 A Single Chip Li Ion and Li Pol Charge Management IC EVM 9 Su...

Страница 10: ...ww ti com K006 2 30 1 79 Physical Layouts Figure 8 Board Layout Bottom Etch Layer bq24070 1 5 A Single Chip Li Ion and Li Pol Charge Management IC EVM 10 SLUU248 May 2006 Submit Documentation Feedback...

Страница 11: ...6 1 1 k Resistor chip 1 k 1 10W 1 0805 Std Std R7 0 1 k Resistor chip 1 k 1 10W 1 0805 Std Std R9 1 10 k Resistor chip 10 k 1 16W 1 0603 Std Std R10 1 0 Resistor chip 0 1 16 W 1 0603 Std Std R11 1 22...

Страница 12: ...y 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...

Страница 13: ...nd the output voltage range of 0 V to 6 5 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 p...

Страница 14: ...iness practice 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 wou...

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