Texas Instruments LM2796 User Manual Download Page 6

IMPORTANT NOTICE

Texas Instruments Incorporated and its subsidiaries (TI) reserve the right to make corrections, enhancements, improvements and other
changes to its semiconductor products and services per JESD46, latest issue, and to discontinue any product or service per JESD48, latest
issue. Buyers should obtain the latest relevant information before placing orders and should verify that such information is current and
complete. All semiconductor products (also referred to herein as “components”) are sold subject to TI’s terms and conditions of sale
supplied at the time of order acknowledgment.

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

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

TI does not warrant or represent that any license, either express or implied, is granted under any patent right, copyright, mask work right, or
other intellectual property right relating to any combination, machine, or process in which TI components or services are used. Information
published by TI regarding third-party products or services does not constitute a license 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 significant portions of TI 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. TI is not responsible or liable for such altered
documentation. Information of third parties may be subject to additional restrictions.

Resale of TI components or services with statements different from or beyond the parameters stated by TI for that component or service
voids all express and any implied warranties for the associated TI component or service and is an unfair and deceptive business practice.
TI is not responsible or liable for any such statements.

Buyer acknowledges and agrees that it is solely responsible for compliance with all legal, regulatory 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 by TI. Buyer represents and agrees that it has all the necessary expertise to create and implement safeguards which
anticipate dangerous consequences of failures, monitor failures and their consequences, lessen the likelihood of failures that might cause
harm and take appropriate remedial actions. Buyer will fully indemnify TI and its representatives against any damages arising out of the use
of any TI components in safety-critical applications.

In some cases, TI components may be promoted specifically to facilitate safety-related applications. With such components, TI’s goal is to
help enable customers to design and create their own end-product solutions that meet applicable functional safety standards and
requirements. Nonetheless, such components are subject to these terms.

No TI components are authorized for use in FDA Class III (or similar life-critical medical equipment) unless authorized officers of the parties
have executed a special agreement specifically governing such use.

Only those TI components which TI has specifically designated as military grade or “enhanced plastic” are designed and intended for use in
military/aerospace applications or environments. Buyer acknowledges and agrees that any military or aerospace use of TI components
which have not been so designated is solely at the Buyer's risk, and that Buyer is solely responsible for compliance with all legal and
regulatory requirements in connection with such use.

TI has specifically designated certain components as meeting ISO/TS16949 requirements, mainly for automotive use. In any case of use of
non-designated products, TI will not be responsible for any failure to meet ISO/TS16949.

Products

Applications

Audio

www.ti.com/audio

Automotive and Transportation

www.ti.com/automotive

Amplifiers

amplifier.ti.com

Communications and Telecom

www.ti.com/communications

Data Converters

dataconverter.ti.com

Computers and Peripherals

www.ti.com/computers

DLP® Products

www.dlp.com

Consumer Electronics

www.ti.com/consumer-apps

DSP

dsp.ti.com

Energy and Lighting

www.ti.com/energy

Clocks and Timers

www.ti.com/clocks

Industrial

www.ti.com/industrial

Interface

interface.ti.com

Medical

www.ti.com/medical

Logic

logic.ti.com

Security

www.ti.com/security

Power Mgmt

power.ti.com

Space, Avionics and Defense

www.ti.com/space-avionics-defense

Microcontrollers

microcontroller.ti.com

Video and Imaging

www.ti.com/video

RFID

www.ti-rfid.com

OMAP Applications Processors

www.ti.com/omap

TI E2E Community

e2e.ti.com

Wireless Connectivity

www.ti.com/wirelessconnectivity

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

Copyright © 2013, Texas Instruments Incorporated

Summary of Contents for LM2796

Page 1: ...e used to enable disable the LM2796 and or the LED output currents The connections to the ENx pins provided by these posts can also be used to connect pulse width modulated PWM signals to the LM2796 in order to adjust the average brightness of the LEDs On each of these header strips the post labeled is connected to VIN The post labeled is connected to GND The middle post connects to EN ENA and ENB...

Page 2: ...By placing a current meter between the two header pins as shown on the following page in Figure 1 the sum total of all LED currents can be measured With the LEDS_ON jumper removed the current of an individual output can be measured by placing a current meter between a Dxx header and GND as shown in Figure 2 With such a connection the voltage on pin Dxx will be almost 0V because the series resistan...

Page 3: ... Series LED or Resistor Optional to Set VDxx 3 6V VD3B VLEDm I ID3B LEDM www ti com Board Operation Figure 2 Measuring Current of All Individual Dxx Outputs by Removing the LEDS_ON Jumper and Placing Current Meters Between the Dxx Pins and GND 3 SNVA086A May 2004 Revised April 2013 AN 1321 LM2796 Evaluation Board Submit Documentation Feedback Copyright 2004 2013 Texas Instruments Incorporated ...

Page 4: ...Symbol U S Metric mm Characteristic LM2796 YZR0018 2 1 x 2 4 x 0 6 Texas LM2796 DSBGA Instruments Cin Cout 2 2µF 6 3V 0603 1608 1 6 x 0 8 x 0 8 X5R TDK C1608X5R0J225K C1 C2 1µF 10V 0603 1608 1 6 x 0 8 x 0 8 X5R TDK C1608X5R1A105K Dxx White LEDs 1 5 x 2 3 x 1 4 OSRAM LWM67C T1U1 3C5D Rset 8 3kΩ 0603 1608 1 6 x 0 8 x 0 8 Vishay Dale CRCW06048251F Rset optional 4 AN 1321 LM2796 Evaluation Board SNVA0...

Page 5: ... LM2796 Evaluation Board Layout Figure 3 Top Layer Figure 4 Bottom Layer top view unmirrored 5 SNVA086A May 2004 Revised April 2013 AN 1321 LM2796 Evaluation Board Submit Documentation Feedback Copyright 2004 2013 Texas Instruments Incorporated ...

Page 6: ...esponsible for compliance with all legal regulatory 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 by TI Buyer represents and agrees that it has all the necessary expertise to create and implement safeguards which anticipate dangerous consequences of failur...

Reviews: