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Texas Instruments TPS92682EVM Скачать руководство пользователя страница 14

VLED1

VCOMP1

VSW2

VFB2/OV2

Performance Data and Typical Characteristic Curves

14

SLUUC13A – May 2019 – Revised August 2019

Submit Documentation Feedback

Copyright © 2019, Texas Instruments Incorporated

TPS92682EVM Constant Current Two-channel Boost and Boost-to-Battery

Figure 8. CC Boost LED Short Over-Current Protection

Figure 9. CC Boost-to-Battery LED Open Over-Voltage

Protection

5.4

EMI Scan

shows the conducted EMI for the boost channel with 12 series connected LED load and I

LED

=

570 mA.

shows the conducted EMI for the boost-to-battery channel with 6 series connected

LED load and I

LED

= 570 mA.

VIN = 12 V, FMMAG = 3, FMFREQ = 5

VIN = 12 V, FMMAG = 1, FMFREQ = 5

Figure 10. CC Boost Conducted EMI Scan

Figure 11. CC Boost-to-Battery Conducted EMI Scan

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Содержание TPS92682EVM

Страница 1: ...TPS92682EVM Constant Current Two channel Boost And Boost to Battery User s Guide Literature Number SLUUC13A May 2019 Revised August 2019...

Страница 2: ...Current Regulator 11 5 Performance Data and Typical Characteristic Curves 11 5 1 Startup Waveforms 12 5 2 PWM Dimming 13 5 3 Faults 13 5 4 EMI Scan 14 6 Schematic PCB Layout and Bill of Materials 15 6...

Страница 3: ...View 16 15 TPS92682EVM 70 Inner layer 1 17 16 TPS92682EVM 70 Inner layer 2 17 17 TPS92682EVM 70 Bottom Layer Bottom View 18 18 Setup Screen 1 22 19 Setup Screen 2 23 20 Setup Screen 3 23 21 Setup Scr...

Страница 4: ...Texas Instruments Incorporated List of Figures 48 GUI Main Window 38 49 SPI Command Window 39 50 Devices Window 40 51 Devices Window Setting 41 52 Fault Status after Pushing the Read Faults Once 41 5...

Страница 5: ...ght 2019 Texas Instruments Incorporated List of Tables List of Tables 1 Connector Descriptions 9 2 Test Points 10 3 TPS92682EVM 070 Boost Channel Performance Specifications 10 4 TPS92682EVM 070 Boost...

Страница 6: ...top from further use of the HV EVM 1 Work Area Safety a Keep work area clean and orderly b Qualified observer s must be present anytime circuits are energized c Effective barriers and signage must be...

Страница 7: ...he EVM or its electrical circuits as they could be at high voltages capable of causing electrical shock hazard 3 Personal Safety a Wear personal protective equipment e g latex gloves or safety glasses...

Страница 8: ...t voltage in the range of 6 5 V to 20 V The EVM provides maximum output power of 25 W for boost channel and 15 W for the boost to battery channel The TPS92682EVM 70 provides high efficiency SPI progra...

Страница 9: ...ol board J9 J1 VIN GND J1 connects the input power to the TPS92682EVM 070 The board silkscreen identifies VIN pins with Vbatt and the GND markings J2 Channel 1 and Channel 2 and GND J2 is connected to...

Страница 10: ...the TPS92682 Q1 device PWM1 PWM1 test point is connected to the PWM1 pin of the TPS92682 Q1 device PWM2 PWM2 test point is connected to the PWM2 pin of the TPS92682 Q1 device LED1 The LED1 test point...

Страница 11: ...s for the boost to battery current regulator channel 2 Table 4 TPS92682EVM 070 Boost to Battery Channel Performance Specifications Parameter Test Conditions MIN TYP MAX UNITS Input Characteristics Vol...

Страница 12: ...Feedback Copyright 2019 Texas Instruments Incorporated TPS92682EVM Constant Current Two channel Boost and Boost to Battery Figure 2 CC Boost Efficiency for VIN 12 V Figure 3 CC Buck Boost Efficiency f...

Страница 13: ...WM dimming for the boost channel VIN 12 V and VOUT 40 V Figure 7 CC Boost Switch Current Sense 5 3 Faults TPS92682 Q1 include various fault handling and diagnostic features Figure 8 and Figure 9 show...

Страница 14: ...8 CC Boost LED Short Over Current Protection Figure 9 CC Boost to Battery LED Open Over Voltage Protection 5 4 EMI Scan Figure 10 shows the conducted EMI for the boost channel with 12 series connected...

Страница 15: ...ack Copyright 2019 Texas Instruments Incorporated TPS92682EVM Constant Current Two channel Boost and Boost to Battery 6 Schematic PCB Layout and Bill of Materials This section contains TPS92682EVM 70...

Страница 16: ...oost and Boost to Battery 6 2 Layout The TPS92682EVM 70 is a four layer board Figure 13 Figure 14 Figure 15 Figure 16 and Figure 17 illustrate the assembly the top the inner layer1 the inner layer2 an...

Страница 17: ...LUUC13A May 2019 Revised August 2019 Submit Documentation Feedback Copyright 2019 Texas Instruments Incorporated TPS92682EVM Constant Current Two channel Boost and Boost to Battery Figure 15 TPS92682E...

Страница 18: ...ww ti com 18 SLUUC13A May 2019 Revised August 2019 Submit Documentation Feedback Copyright 2019 Texas Instruments Incorporated TPS92682EVM Constant Current Two channel Boost and Boost to Battery Figur...

Страница 19: ...M 4700 pF 100 V 10 X7R AEC Q200 Grade 1 0603 CGA3E2X7R2A472K080 AA TDK C25 C27 C51 C54 4 1000 pF CAP CERM 1000 pF 50 V 10 X7R 0603 GRM188R71H102KA01 D MuRata C29 1 0 047 F CAP CERM 0 047 uF 25 V 10 X7...

Страница 20: ...R27 4 10 RES 10 0 1 0 1 W AEC Q200 Grade 0 0603 CRCW060310R0FKEA Vishay R10 R30 2 100 RES 100 1 0 1 W AEC Q200 Grade 0 0603 CRCW0603100RFKEA Vishay R12 R33 2 0 04 RES 0 04 1 1 W 2010 CSRN2010FK40L0 St...

Страница 21: ...t Two channel Boost and Boost to Battery Table 5 TPS92682EVM 70 Bill of Materials continued Designator Quantity Value Description Package Part Number Manufacturer U2 1 High Speed Low Power Robust EMC...

Страница 22: ...chPad Evaluation Software Installer exe and select Run As Administrator 2 Windows Account Control asks to allow the program to make changes to the computer Click Yes 3 Select Agree to the installation...

Страница 23: ...ted TPS92682EVM Constant Current Two channel Boost and Boost to Battery Figure 19 Setup Screen 2 Click Next to accept the License Agreement Figure 20 Setup Screen 3 Select Full Install and click Next...

Страница 24: ...attery Figure 21 Setup Screen 4 If NET Framework 4 5 or higher does not exist on the computer the NET Framework installation begins Installation of NET Framework will take several minutes If NET Frame...

Страница 25: ...t Documentation Feedback Copyright 2019 Texas Instruments Incorporated TPS92682EVM Constant Current Two channel Boost and Boost to Battery Figure 23 Setup Screen 6 Click Next to continue the installat...

Страница 26: ...nel Boost and Boost to Battery Figure 25 Setup Screen 8 The completion of the XDS driver installation is shown in Figure 25 The TI Emulators installation starts at this point This will install the nec...

Страница 27: ...uments Incorporated TPS92682EVM Constant Current Two channel Boost and Boost to Battery Figure 27 Setup Screen 10 Accept the license agreement in Figure 27 Figure 28 Setup Screen 11 In the next few wi...

Страница 28: ...t to Battery Figure 29 Setup Screen 12 Figure 30 Setup Screen 13 The screen showing the completion of the TI Emulators installation is shown in Figure 30 Click on Finish to move to the next step The U...

Страница 29: ...Revised August 2019 Submit Documentation Feedback Copyright 2019 Texas Instruments Incorporated TPS92682EVM Constant Current Two channel Boost and Boost to Battery Figure 31 Setup Screen 14 Figure 32...

Страница 30: ...the UniFlash and program the LaunchPad Figure 35 Setup Screen 18 Figure 35 shows the completion notification of the TPS92682 Q1 Evaluation Software Un check the Launch Application and click Finish 7 2...

Страница 31: ...rming that installing NET failed Close that window and continue Click Install unsigned drivers twice After restarting a second time the host computer resets which requires all drivers to be digitally...

Страница 32: ...o channel Boost and Boost to Battery Figure 37 LaunchPad Connection for Programming Typically the installed UniFlash program opens at the end of the software setup shown in Figure 34 If the UniFlash p...

Страница 33: ...Programming Step 2 As shown in Figure 39 navigate to the Texas Instruments TPS92682 LaunchPad Evaluation Software uniflash location and select the msp432e401y uniflash file Figure 40 UniFlash Program...

Страница 34: ...y Figure 41 UniFlash Programming Step 4 Click Load Image After the program is loaded into the LaunchPad a message appears in the console that the Program Load completed successfully as shown in Figure...

Страница 35: ...C13A May 2019 Revised August 2019 Submit Documentation Feedback Copyright 2019 Texas Instruments Incorporated TPS92682EVM Constant Current Two channel Boost and Boost to Battery Figure 43 LaunchPad Co...

Страница 36: ...TPS92682EVM 70 to the header J2 J4 on the LaunchPad and the header J11 to the header J1 J3 using two included ribbon cables as shown in Figure 44 Figure 44 LaunchPad Connection to TPS92682EVM 70 Appl...

Страница 37: ...tant Current Two channel Boost and Boost to Battery Figure 45 GUI Setup Screen 1 Click the EVM selection dropdown box Select TPS92682 CC PSIL070 Figure 46 GUI Setup Screen 2 On the screen shown in Fig...

Страница 38: ...ters on the SPI BUS Devices Box 3 is the main GUI control window to configure the TPS92682 Q1 device Figure 48 GUI Main Window 8 1 SPI Command The SPI command box allow access to the read from and wri...

Страница 39: ...ed TPS92682EVM Constant Current Two channel Boost and Boost to Battery Figure 49 SPI Command Window 8 2 GUI Devices Window In TPS92682EVM 70 channel 1 is configured as a CC mode boost converter and ch...

Страница 40: ...100 4 Enter the desired value for the CH1 and CH2 V I Adjust DAC This DAC controls the ILED current For TPS92682EVM 070 the DAC maximum value of 255 corresponds with an ILED of approximately 570 mA T...

Страница 41: ...nd turning on the outputs the fault registers must be read cleared The Power Cycle PC bit must be cleared in order for the TPS92682 Q1 is enabled The fault status can be obtained by pushing the Read F...

Страница 42: ...IS Open ISO RT Open RTO Power Cycle PC and Thermal Warning TW should be cleared change status to green before enabling the channels Before enabling the channels make sure to connect LED loads to the o...

Страница 43: ...Revision History Revision History NOTE Page numbers for previous revisions may differ from page numbers in the current version Changes from Original May 2019 to A Revision Page Updated Figures 18 to 2...

Страница 44: ...ther than TI b the nonconformity resulted from User s design specifications or instructions for such EVMs or improper system design or c User has not paid on time Testing and other quality control tec...

Страница 45: ...These limits are designed to provide reasonable protection against harmful interference in a residential installation This equipment generates uses and can radiate radio frequency energy and if not in...

Страница 46: ...instructions set forth by Radio Law of Japan which includes but is not limited to the instructions below with respect to EVMs which for the avoidance of doubt are stated strictly for convenience and s...

Страница 47: ...any interfaces electronic and or mechanical between the EVM and any human body are designed with suitable isolation and means to safely limit accessible leakage currents to minimize the risk of electr...

Страница 48: ...R DAMAGES ARE CLAIMED THE EXISTENCE OF MORE THAN ONE CLAIM SHALL NOT ENLARGE OR EXTEND THIS LIMIT 9 Return Policy Except as otherwise provided TI does not offer any refunds returns or exchanges Furthe...

Страница 49: ...e resources are subject to change without notice TI grants you permission to use these resources only for development of an application that uses the TI products described in the resource Other reprod...

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