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Texas Instruments TPS62350EVM-201, Руководство пользователя

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Texas Instruments TPS62350EVM-201 Скачать руководство пользователя страница 9

www.ti.com

Board Layout

9

SLVU177A – July 2006 – Revised January 2018

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Copyright © 2006–2018, Texas Instruments Incorporated

TPS62350EVM-201 Evaluation Module

5

Board Layout

This section provides the TPS62350EVM-201 board layout and illustrations.

Board layout is critical for all high-frequency, switch-mode power supplies.

Figure 7

through

Figure 11

show the board layout for the TPS62350EVM-201 PCB. The nodes with high-switching frequencies and
currents are kept as short as possible to minimize trace inductance. Careful attention has been given to
the routing of high-frequency current loops and a single-point grounding scheme is used. See the data
sheet for specific layout guidelines.

Figure 7. Assembly Layer

Содержание TPS62350EVM-201

Страница 1: ...l of materials and PCB layout drawings for the evaluation module Contents 1 Introduction 2 2 Setup 2 3 Operation 5 4 Test Results 7 5 Board Layout 9 6 Schematic and Bill of Materials 12 List of Figures 1 Output Controls Tab 5 2 Preferences Tab 6 3 Start up From Enable 7 4 Output Ripple 7 5 Load Transient 1 mA to 180 mA Step 8 6 Load Transient 210 mA to 1 mA Step 8 7 Assembly Layer 9 8 Top Layer Ro...

Страница 2: ...cable the other side of the USB interface adapter connects to the EVM with the supplied ribbon cable When a command is written to the EVM the interface program running on the PC sends the commands to the PC USB port The USB interface adapter receives the USB command converts the signal to an I2 C protocol and sends the I2 C signal to the TPS62350 EVM board Software Texas Instruments provides softw...

Страница 3: ...is jumper enables or disables the converter Connect the shorting jumper from the center ENABLE pin to either the ON or OFF position Never leave this pin floating 2 1 10 JP3 VSEL Converter 2 This jumper is used to select the output voltage of the converter Placing a shunt between pins 1 and 2 HIGH and VSEL sets the output voltage of the converter to the voltage defined by the internal VSEL1 registe...

Страница 4: ...50EVM board and JP1 and JP2 should be left open Configure the jumper on JP3 to the desired setting Shorting between VSEL and HIGH pins 1 and 2 makes the TPS62350 power up with the output voltage set by the VSEL1 register Shorting between VSEL and LOW pins 2 and 3 makes the TPS62350 power up with the output voltage set by the VSEL0 register Configure JP4 as desired Shorting between EN and ON pins 1...

Страница 5: ...ialized the host computer software automatically searches on the Internet if connected for updates If a new update is available the software notifies the user of the update and downloads it The main control panel for the user interface has three main page tabs EVM Configuration Output Controls and Preferences The software initializes with the EVM Configuration tab selected This page can be used to...

Страница 6: ...hen the difference between VSEL0 and VSEL1 cannot exceed the selected percentage This feature provides a method to limit the ratio of voltages that can be selected This can be used to avoid inadvertently selecting output voltages in the output voltage pull down boxes that are too high for the application being tested Figure 2 Preferences Tab All three tabs show the bit representation of all four i...

Страница 7: ... 05 V Rload 5 W www ti com Test Results 7 SLVU177A July 2006 Revised January 2018 Submit Documentation Feedback Copyright 2006 2018 Texas Instruments Incorporated TPS62350EVM 201 Evaluation Module 4 Test Results This section provides typical performance waveforms for the TPS62350EVM 201 board Figure 3 Start up From Enable Figure 4 Output Ripple ...

Страница 8: ...Voltage 20 mV div PWM MODE LPFM MODE Vin 3 6 V Vout 1 05 V 50 s div m Test Results www ti com 8 SLVU177A July 2006 Revised January 2018 Submit Documentation Feedback Copyright 2006 2018 Texas Instruments Incorporated TPS62350EVM 201 Evaluation Module Figure 5 Load Transient 1 mA to 180 mA Step Figure 6 Load Transient 210 mA to 1 mA Step ...

Страница 9: ...ons Board layout is critical for all high frequency switch mode power supplies Figure 7 through Figure 11 show the board layout for the TPS62350EVM 201 PCB The nodes with high switching frequencies and currents are kept as short as possible to minimize trace inductance Careful attention has been given to the routing of high frequency current loops and a single point grounding scheme is used See th...

Страница 10: ...i com 10 SLVU177A July 2006 Revised January 2018 Submit Documentation Feedback Copyright 2006 2018 Texas Instruments Incorporated TPS62350EVM 201 Evaluation Module Figure 8 Top Layer Routing Figure 9 Bottom Layer Routing ...

Страница 11: ... Layout 11 SLVU177A July 2006 Revised January 2018 Submit Documentation Feedback Copyright 2006 2018 Texas Instruments Incorporated TPS62350EVM 201 Evaluation Module Figure 10 Layer 2 Routing Figure 11 Layer 3 Routing ...

Страница 12: ...ry 2018 Submit Documentation Feedback Copyright 2006 2018 Texas Instruments Incorporated TPS62350EVM 201 Evaluation Module 6 Schematic and Bill of Materials This section provides the TPS62350EVM 201 schematic and bill of materials 6 1 Schematic Figure 12 TPS62350EVM 201 Schematic ...

Страница 13: ... L1 1 0μH Inductor SMT 1 6A 30 3mm x 3mm LPS3010 102NLC Coilcraft 2 R1 R2 10 0k Resistor Chip 1 16W 1 0603 Std Std 1 R3 1 00M Resistor Chip 1 16W 1 0603 Std Std 1 U1 IC 3MHz synchronous step down converter with I2 C 800mA CSP 12 TPS62350YZG TI 6 3 Related Documentation From Texas Instruments TPS62350 TPS62351 800 mA 3 MHz Synchronous Step Down Converter With I2 C Compatible Interface in Chip Scale...

Страница 14: ...y set forth above or credit User s account for such EVM TI s liability under this warranty shall be limited to EVMs that 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 warr...

Страница 15: ...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 réglementation d Industrie Canada le présent émetteur radio peut fo...

Страница 16: ...ed loads Any loads applied outside of the specified output range may also result in unintended and or inaccurate operation and or possible permanent damage to the EVM and or interface electronics Please consult the EVM user 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 even ...

Страница 17: ...COST OF 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 TWELVE 12 MONTHS AFTER THE EVENT THAT GAVE RISE TO THE CAUSE OF ACTION HAS OCCURRED 8 2 Specif...

Страница 18: ... TI Resource NO OTHER LICENSE EXPRESS OR IMPLIED BY ESTOPPEL OR OTHERWISE TO ANY OTHER TI INTELLECTUAL PROPERTY RIGHT AND NO LICENSE TO ANY TECHNOLOGY OR INTELLECTUAL PROPERTY RIGHT OF TI OR ANY THIRD PARTY IS GRANTED HEREIN including but not limited to any patent right copyright mask work right or other intellectual property right relating to any combination machine or process in which TI product...

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