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Introduction (Board Overview)

SLVUB61 – July 2017

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TPS65291 EVM User's Guide

Figure 1. TPS65291EVM Printed Circuit Board (Top View)

1.1

Related Documentation

Texas Instruments,

TPS65291 High-Efficiency Solution for Multi-Stacked Battery Systems

data sheet

1.2

TPS65291 Applications

The TPS65291 can be used in, but not limited to,the following applications:

•

Low-power energy harvesting systems

•

Battery powered applications

•

Gas and water maters

•

POL supply from single (1S) or dual (2S) Li-Ion batteries

•

Higher-efficiency LDO replacement

Getting Started

Figure 2

shows the high-level block diagram of the TPS65291EVM, highlighting important integrated

circuits (ICs) and connections, the upper and lower sections of the PCB, and the interface between the
EVM and a computer.

Содержание TPS65291 EVM

Страница 1: ... Appendix B Software Installation and Setup Instructions 17 List of Figures 1 TPS65291EVM Printed Circuit Board Top View 3 2 TPS65291EVM Block Diagram 4 3 TPS65291 Test Setup Power Supply and Multi meter Connections 5 4 TPS65291EVM Split With Ribbon Cable Between USB2ANY and TPS65291 Sections 7 5 Successful Completion Read ALL Registers in IPG UI 9 6 B2_Enreg is Enabled by Default in IPG UI 10 7 E...

Страница 2: ...DO_SW configurable LDO or switch output of the TPS65291 device must be enabled by communicating to the TPS65291 device through SPI from a host controller On the EVM an MSP430 MCU is programmed as a USB2ANY device and the SPI signals CLK MOSI MISO and CS are hard wired to the TPS65291 device so that only a USB cable must be plugged into the EVM to enable BUCK1 and LDO_SW The B1_VIN pin can be short...

Страница 3: ...tems data sheet 1 2 TPS65291 Applications The TPS65291 can be used in but not limited to the following applications Low power energy harvesting systems Battery powered applications Gas and water maters POL supply from single 1S or dual 2S Li Ion batteries Higher efficiency LDO replacement 2 Getting Started Figure 2 shows the high level block diagram of the TPS65291EVM highlighting important integr...

Страница 4: ... NC B2_LX LDO_SW_IN_B2_FB PAD LDO_SW_OUT B1_PGND B2_PGND_AGND B1_FB CLK MOSI MISO CS 10 Pin Header CLK MOSI MISO CS GND SPI_CLK SPI_MOSI SPI_MISO SPI_CS B2_VIN LDO_SW_OUT VIN_MON B2_VOUT B1_VOUT USB_5V VIN_MON B2_VIN B1_VIN Copyright 2017 Texas Instruments Incorporated Getting Started www ti com 4 SLVUB61 July 2017 Submit Documentation Feedback Copyright 2017 Texas Instruments Incorporated TPS6529...

Страница 5: ... power supply and measuring the output voltage B2_VOUT J6 when power is first applied Figure 3 TPS65291 Test Setup Power Supply and Multi meter Connections J1 B1_VIN and J9 GND or J4 pin 2 B1_VIN pin 1 GND TheJ1 and J9 banana jacks and the J4 screw terminal are for providing power to BUCK1 through the positive lead of a power supply and a return path to ground through the negative lead J2 B2_VIN a...

Страница 6: ..._OUT TP11 Orange Data input MOSI TP12 Orange Data output MISO TP14 Orange Data input CS TP6 TP9 TP13 TP15 TP18 1 Black Ground PGND AGND thermal pad TP19 Metal Surface Mount MSP430 power rail USB_3P3V J17 2 3 Pin Header Input power B1_VIN pin 1 Data output VIN_MON pin 2 Input power B2_VIN pin 3 J18 2 Header MSP430 power output EXT_3V3 CAUTION J17 does not allow for the installation of a shunt to sh...

Страница 7: ...nect the micro USB plug to J21 and the other end standard A plug of the USB cable into a USB2or USB3 port of a computer If the PCB is split into two sections so that the lower half can be used as a stand alone USB2ANY a keyed 10 pin ribbon cable must be connected between J19 and J16 to control the TPS65291 device through SPI Figure 4 shows these connections Figure 4 TPS65291EVM Split With Ribbon C...

Страница 8: ...d cable to J1 and a jumper cable from J1 to J2 Ensure that the current limit on the supply is 1 5 A Connect the voltage lead of digital multi meter DMM to B2_VOUT J6 and connect the GND lead to J12 Turn the power supply on and observe the voltage on the DMM measuring J6 B2_VOUT Measure with the DMM and verify the BUCK2 output voltage at J6 is approximately 2 8 V Move the voltage lead of the DMM to...

Страница 9: ...7 Texas Instruments Incorporated TPS65291 EVM User s Guide Figure 5 Successful Completion Read ALL Registers in IPG UI Click the Register0 row so that it is highlighted in gray and shows the Register0 contents Hover the mouse over Bit 1 to verify that B2_Enreg is Enabled as shown in Figure 6 ...

Страница 10: ...91 device Measure with the DMM and verify the voltage at J7 is approximately 3 V Figure 7 Enabling BUCK1 B1_Enreg in IPG UI Move the red voltage lead of the DMM to J11 LDO_SW_VOUT change the LDOnSW_Enreg position from Disabled to Enabled and then click the W button in the Register0 row Figure 8 shows that bit 2 now has a value of 1b LDOnSW_Enreg is Enabled and that after the W button is pressed al...

Страница 11: ...www ti com Getting Started 11 SLVUB61 July 2017 Submit Documentation Feedback Copyright 2017 Texas Instruments Incorporated TPS65291 EVM User s Guide Figure 8 Enabling LDO_SW LDOnSW_Enreg in IPG UI ...

Страница 12: ...7 Texas Instruments Incorporated EVM Documentation Appendix A SLVUB61 July 2017 EVM Documentation A 1 Layout Figure 9 through Figure 14 show the board layout for the TPS65291EVM Figure 9 Component Placement Top Assembly Figure 10 Component Placement Bottom Assembly ...

Страница 13: ...UB61 July 2017 Submit Documentation Feedback Copyright 2017 Texas Instruments Incorporated EVM Documentation Figure 11 Layout Top Composite Figure 12 Layout Bottom Composite Figure 13 Top Layer Figure 14 Bottom Layer Top View ...

Страница 14: ...27 D2_N D2_P GND 1 5k R35 1 2 3 4 5 6 7 8 9 10 J19 0 R24 0 R25 USB2ANY Interface Pin 1 GPIO1 Pin 2 SPI CS Pin 3 SPI MISO Pin 4 SPI MOSI Pin 5 3 3V Pin 6 GND Pin 7 GPIO7 Pin 8 SPI CLK Pin 9 I2C SCL Pin 10 I2C SDA LEGEND ______________________________ USB2ANY MSP430F5529 Interface Pin 51 P4 4 SPI MOSI Pin 52 P4 5 SPI MISO Pin 45 P4 0 SPI CLK Pin 29 P2 0 SPI CS 1000pF C20 GND GND TPS65291 I O Header ...

Страница 15: ...8 J10 J13 5 Terminal Block 3 5mm Pitch 2x1 TH 7 0x8 2x6 5mm ED555 2DS On Shore Technology J16 J19 2 Header shrouded 100mil 5x2 High Temperature Gold TH 5x2 Shrouded header N2510 6002 RB 3M J17 J20 2 Header 2 54 mm 3x1 Tin TH Header 2 54 mm 3x1 TH TSW 103 07 T S Samtec J18 1 Header 100mil 1pos Gold TH Testpoint TSW 101 07 G S Samtec J21 1 Connector Receptacle Micro USB Type B R A Bottom Mount SMT 7...

Страница 16: ...utput 2 7 to 10 V Input with Low IQ 5 pin SOT 23 DBV 40 to 125 degC Green RoHS no Sb Br DBV0005A TPS76333DBVT Texas Instruments U4 1 Adjustable Active High Latch off Current Limited Power Distribution Switch DBV0006A SOT 23 6 DBV0006A TPS2553DBVR 1 Texas Instruments Y1 1 Crystal 24 000MHz 20pF SMD Crystal 11 4x4 3x3 8mm ECS 240 20 5PX TR ECS Inc C5 C7 0 100uF CAP TA 100uF 16V 20 0 125 ohm SMD 7343...

Страница 17: ...91 The following instructions explain how to run setup and operate the IPG UI software on a computer and connect it to the TPS65291EVM Install a shunt on header J20 shorting pin 1 USB_3P3V and pin 2 MSP_3P3V Run the IPG UI software by using the Windows Start Menu and navigating to the Texas Instruments folder or by double clicking the desktop icon as shown in Figure 16 Figure 16 Run the IPG UI Sof...

Страница 18: ...egister write access is enabled as shown in Figure 19 Figure 19 Successful Write Access to TPS65291 Notification The TPS65291 Introduction tab is now displayed If a red notification appears as in Figure 20 it indicates the computer can talk to the USB2ANY but cannot communicate with the TPS65291 device The primary cause of this issue may be that the power supply is not turned on or a cable is unpl...

Страница 19: ...Documentation Feedback Copyright 2017 Texas Instruments Incorporated Software Installation and Setup Instructions Figure 21 TPS65291 SPI Project Introduction Tab in IPG UI NOTE At present the IPG UI software version is 2 5 0 3 and the TPS65291 SPI file version is 1 1 ...

Страница 20: ...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 21: ...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 22: ...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 23: ...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 24: ... 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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