background image

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 © 2016, Texas Instruments Incorporated

Содержание TPS3809

Страница 1: ...s Contents 1 Introduction 2 2 Setup and Operation 6 3 EVM Setup 7 List of Figures 1 TPS3813xxxQ1EVM Board 2 2 TPS3813xxxQ1EVM Schematic 3 3 Composite Top View 5 4 Layout Top View 5 5 Layout Bottom View 5 6 Top Layer 5 7 Bottom Layer 5 8 Top Solder Mask 5 9 Delay Time TPS3813K33 Q1 8 10 Delay Time TPS3813I50 Q1 8 11 Rise Time TPS3813K33 Q1 8 12 Rise Time TPS3813I50 Q1 8 13 Fall Time TPS3813K33 Q1 9...

Страница 2: ... a common ground connection Provided test points give users access to multiple ground points and all critical node voltages The top side of the EVM board accepts two voltage supervisors in a SOT23 6 package These devices have an input for supply voltage VDD a watchdog rising edge input and a reset output to monitor that VDD does not drop below the threshold voltage VIT and monitor the watchdog tim...

Страница 3: ...k Copyright 2016 Texas Instruments Incorporated TPS3813xxxQ1EVM for Processor Voltage Supervisor With Window Watchdog User s Guide 1 3 1 EVM Schematic Figure 2 TPS3813xxxQ1EVM Schematic 1 3 2 EVM Bill of Materials Table 1 lists the bill of materials BOM for the TPS3813xxxQ1EVM ...

Страница 4: ...Gold R A SMT Header 2 54 mm 2 x1 R A SMT 87898 0204 Molex J2 J3 J6 J7 4 Header 100 mil 3x1 Gold SMT Samtec_TSM 103 01 X SV TSM 103 01 L SV Samtec R1 R2 2 100k RES 100 k 1 0 1 W 0603 0603 CRCW0603100KFKE A Vishay Dale SH J1 SH J2 SH J5 SH J6 4 1x2 Shunt 100mil Flash Gold Black Closed Top 100mil Shunt SPC02SYAN Sullins Connector Solutions TP1 TP2 TP3 TP4 TP5 TP6 TP7 TP8 TP9 TP10 TP11 TP12 TP13 TP14 ...

Страница 5: ...acement Figure 3 is the top assembly of the printed circuit board PCB which shows the component placement on the EVM Figure 4 is the Layout Top View and Figure 5 is the Layout Bottom View Figure 6 and Figure 7 show the top and bottom layers and Figure 8 shows the top solder mask of the EVM Figure 3 Composite Top View Figure 4 Layout Top View Figure 5 Layout Bottom View Figure 6 Top Layer Figure 7 ...

Страница 6: ...ice Test Point Silkscreen Label Function Description TP1 TPS3813K33 VDD Voltage Input Supply Voltage Voltage Supervisor Input TP2 TPS3813K33 VDD1 Voltage Monitoring Probing Voltage Probe Point for TPW3813 TP3 TPS3813K33 RESETN Voltage Monitoring Probing Active Low Reset Output TP4 TPS3813K33 GND Voltage Input Supply Ground Connection TP5 TPS3813K33 WDR1 Voltage Monitoring Probing Watchdog Ratio In...

Страница 7: ... pin to supply voltage VDD J4 TPS3813K33 On Pulls the WDT pin low lowest lower window boundary and window J5 TPS3813I50 On Pulls RESET pin to supply voltage VDD J8 TPS3813I50 On Pulls the WDT pin low lowest lower window boundary and window J2 TPS3813K33 GND Pulls the WDR pin low smaller lower window boundary and window VDD Pulls the WDR pin high larger lower window boundary and window J3 TPS3813K3...

Страница 8: ...et The delay time td 25 ms typical begins after the VDD1 voltage rises above the threshold voltage VIT as specified in the TPS3813 Q1 datasheet To perform this test the user must set the jumpers according to Jumper Settings Table 5 A stable 5 V DC supply must also be readily available Table 5 Jumper Settings Jumper Setting J1 to J5 VDD1 J2 to J6 VDD1 J3 to J7 VDD1 J4 to J8 OFF The jumper settings ...

Страница 9: ...atchdog Timer The TPS3813 Q1EVM allows users to program the watchdog window using the WDT and WDR pins with several different configurations to set the window timeout and ratio which are explained in the Implemented Window Watchdog Settings section of the TPS3813Q1 datasheet On board the EVM the WDT pin can be connected to ground through the C2 capacitor using the J4 and J6 jumpers to set the uppe...

Страница 10: ...a 3300 pF capacitor The former results in a watchdog window with limits of tboundary max 35 ms and twindow min 895 3 ms Once the window has been configured the watchdog timer should re trigger to use the Watchdog Timer Input WDI pin with an external signal that fits within the watchdog window to avoid a timeout and RESETN pin is asserted Care must be taken to avoid a boundary violation which resul...

Страница 11: ... are returned during the warranty period to the address designated by TI and that are determined by TI not to conform to such warranty If TI elects to repair or replace such EVM TI shall have a reasonable time to repair such EVM or provide replacements Repaired EVMs shall be warranted for the remainder of the original warranty period Replaced EVMs shall be warranted for a new full ninety 90 day wa...

Страница 12: ... 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 Concernant les EVMs avec antennes détachables Conformément à la rég...

Страница 13: ...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 even with the inputs and outputs kept within the specified allowable ranges some circuit components may have elevated case temperatures These components include but are not limited to linear regulators switching transistors pass transistors cur...

Страница 14: ...F REMOVAL OR REINSTALLATION ANCILLARY COSTS TO THE PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES RETESTING OUTSIDE COMPUTER TIME LABOR COSTS LOSS OF GOODWILL LOSS OF PROFITS LOSS OF SAVINGS LOSS OF USE LOSS OF DATA OR BUSINESS INTERRUPTION NO CLAIM SUIT OR ACTION SHALL BE BROUGHT AGAINST TI MORE THAN ONE YEAR AFTER THE RELATED CAUSE OF ACTION HAS OCCURRED 8 2 Specific Limitations IN NO EVENT SHALL T...

Страница 15: ...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...

Отзывы: