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LMG34XX-BB-EVM

LMG34XX-BB-EVM

  • 厂商:

    BURR-BROWN(德州仪器)

  • 封装:

  • 描述:

    LMG3410 半 H 桥驱动器(内部 FET) 电源管理 评估板

  • 数据手册
  • 价格&库存
LMG34XX-BB-EVM 数据手册
Preface SNOU140A – April 2016 – Revised May 2017 Using the LMG3410-HB-EVM Half-Bridge and LMG34XXBB-EVM Breakout Board EVM General TI High Voltage Evaluation User Safety Guidelines WARNING Always follow TI’s set-up and application instructions, including use of all interface components within their recommended electrical rated voltage and power limits. Always use electrical safety precautions to help ensure your personal safety and the safety of those working around you. Contact TI’s Product Information Center http://support/ti./com for further information. Save all warnings and instructions for future reference. Failure to follow warnings and instructions may result in personal injury, property damage, or death due to electrical shock and/or burn hazards. The term TI HV EVM refers to an electronic device typically provided as an open framed, unenclosed printed circuit board assembly. It is intended strictly for use in development laboratory environments, solely for qualified professional users having training, expertise, and knowledge of electrical safety risks in development and application of high-voltage electrical circuits. Any other use and/or application are strictly prohibited by Texas Instruments. If you are not suitably qualified, you should immediately stop from further use of the HV EVM. • Work Area Safety: – Maintain a clean and orderly work area . – Qualified observer(s) must be present anytime circuits are energized. – Effective barriers and signage must be present in the area where the TI HV EVM and its interface electronics are energized, indicating operation of accessible high voltages may be present, for the purpose of protecting inadvertent access. – All interface circuits, power supplies, evaluation modules, instruments, meters, scopes and other related apparatus used in a development environment exceeding 50 VRMS/75 VDC must be electrically located within a protected Emergency Power Off (EPO) protected power strip. – Use a stable and non-conductive work surface. – Use adequately insulated clamps and wires to attach measurement probes and instruments. No freehand testing whenever possible. • Electrical Safety: As a precautionary measure, it is always a good engineering practice to assume that the entire EVM may have fully accessible and active high voltages. – De-energize the TI HV EVM and all its inputs, outputs, and electrical loads before performing any electrical or other diagnostic measurements. Confirm that TI HV EVM power has been safely deenergized. – With the EVM confirmed de-energized, proceed with required electrical circuit configurations, wiring, measurement equipment hook-ups and other application needs, while still assuming the EVM circuit and measuring instruments are electrically live. – When EVM readiness is complete, energize the EVM as intended. SNOU140A – April 2016 – Revised May 2017 Submit Documentation Feedback Using the LMG3410-HB-EVM Half-Bridge and LMG34XX-BB-EVM Breakout Board EVM General TI High Voltage Evaluation User Safety Guidelines Copyright © 2016–2017, Texas Instruments Incorporated 1 www.ti.com • • WARNING: While the EVM is energized, never touch the EVM or its electrical circuits as they could be at high voltages capable of causing electrical shock hazard. Personal Safety: – Wear personal protective equipment, for example, latex gloves and/or safety glasses with side shields or protect EVM in an adequate lucent plastic box with interlocks from accidental touch. Limitation for Safe Use: – EVMs are not to be used as all or part of a production unit. Safety and Precautions The EVM is designed for professionals who have received the appropriate technical training, and is designed to operate from an AC power supply or a high-voltage DC supply. Please read this user guide and the safety-related documents that come with the EVM package before operating this EVM. CAUTION Do not leave the EVM powered when unattended. WARNING Hot surface! Contact may cause burns. Do not touch! WARNING High Voltage! Electric shock is possible when connecting board to live wire. Board should be handled with care by a professional. For safety, use of isolated test equipment with overvoltage and overcurrent protection is highly recommended. 2 Using the LMG3410-HB-EVM Half-Bridge and LMG34XX-BB-EVM Breakout Board EVM General TI High Voltage Evaluation User Safety Guidelines Copyright © 2016–2017, Texas Instruments Incorporated SNOU140A – April 2016 – Revised May 2017 Submit Documentation Feedback User's Guide SNOU140A – April 2016 – Revised May 2017 Using the LMG3410-HB-EVM Half-Bridge and LMG34XXBB-EVM Breakout Board EVM The LMG3410-HB-EVM features two LMG3410 600V/12A GaN power transistors with integrated drivers that are configured in a half bridge with all the required bias circuit and logic/power level shifting. Essential power stage and gate driving high frequency current loops are fully enclosed on the board to minimize parasitic inductances, reducing voltage overshoots and improving performance. The LMG3410-HB-EVM is configured to have a socket style external connection for easy interface with external power stages to run the LMG3410 in various applications. 1 2 3 4 5 6 7 Contents Description .................................................................................................................... 4 Schematic ..................................................................................................................... 8 Test Setup ................................................................................................................... 11 Test Procedure ............................................................................................................. 14 Typical Characteristics..................................................................................................... 15 EVM Assembly Drawing and PCB Layout .............................................................................. 17 Bill of Materials ............................................................................................................. 18 List of Figures 1 Simplified LMG3410-HB-EVM Schematic ................................................................................ 5 2 Front and Back Side Photos of LMG3410-HB-EVM 19 ................................................................... 6 LMG3410-HB-EVM Schematic............................................................................................. 8 Recommended Footprint for LMG3410-HB-EVM........................................................................ 9 LMG34XX-BB-EVM Schematic .......................................................................................... 10 LMG3410-HB-EVM Connected with LMG34XX-BB-EVM ............................................................ 11 Recommended Connection Points ....................................................................................... 12 Recommended Probe Connection for Logic Signals .................................................................. 15 Recommended Probe Connection for High Voltage Switch Node ................................................... 15 Recommended Configuration for Heatsink and Fan................................................................... 15 Switching Waveforms with 480V input, 100kHz, 30% duty cycle, 6A output ....................................... 15 Low to High Transition Waveform with 480V input, 100kHz, 30% duty cycle, 6A output ........................ 15 High to Low Transition Waveform with 480V input, 100kHz, 30% duty cycle, 6A output ........................ 15 LMG3410-HB-EVM Top Layer and Components ...................................................................... 17 LMG3410-HB-EVM Inner Copper Layer 1 .............................................................................. 17 LMG3410-HB-EVM Inner Copper Layer 2 .............................................................................. 17 LMG3410-HB-EVM Bottom Layer and Components .................................................................. 17 LMG34XX-BB-EVM Top Layer and Components...................................................................... 17 LMG34XX-BB-EVM Bottom Layer and Components .................................................................. 17 1 Logic Pin Function Description............................................................................................. 4 2 Power Pin Function Description 3 Test Point Functional Description ........................................................................................ 13 4 List of Terminals ............................................................................................................ 13 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 List of Tables SNOU140A – April 2016 – Revised May 2017 Submit Documentation Feedback ........................................................................................... Using the LMG3410-HB-EVM Half-Bridge and LMG34XX-BB-EVM Breakout Board EVM Copyright © 2016–2017, Texas Instruments Incorporated 4 3 Description www.ti.com 5 LMG3410-HB-EVM List of Materials ..................................................................................... 18 6 LMG34XX-BB-EVM List of Materials .................................................................................... 19 Trademarks All trademarks are the property of their respective owners. 1 Description The LMG3410-HB-EVM operates as a daughter card as part of a larger custom designed system or with the LMG34XX-BB-EVM breakout motherboard. 1.1 LMG3410-HB-EVM The LMG3410-HB-EVM configures two LMG3410 GaN FETs in a half bridge. All the bias and level shifting components are included, allowing low side referenced signals to control both FETs. High frequency bypass capacitors are included on the power stage in an optimized layout to minimize parasitic inductance and reduce voltage overshoot. There are 6 logic pins on the FET card Table 1. Logic Pin Function Description Pin Description AGND Logic and bias power ground return pin. Functionally isolated from PGND. 12V Auxiliary power input for when the LMG3410-HB-EVM is configured in bootstrap mode. Pin is not used when configured in isolated power mode. 5V Auxiliary power input for the LMG3410-HB-EVM. Used to power logic isolators. Used as input bias power of LMG3410 devices when configured in isolated power mode. FAULT Logic AND output from FAULT signal from LMG3410. Pin is either pulled to AGND or 5V. Q2 Gate AGND referenced logic gate signal input for bottom LMG3410. Compatible with both 3.3V and 5V logic. Q1 Gate AGND referenced logic gate signal input for top LMG3410. Compatible with both 3.3V and 5V logic. There are 3 power pins on the FET card. Table 2. Power Pin Function Description 4 Pin Description VSW Switch node of the half bridge VDC Input DC voltage of the half bridge PGND Power ground of the half bridge. Functionally isolated from AGND. Using the LMG3410-HB-EVM Half-Bridge and LMG34XX-BB-EVM Breakout Board EVM Copyright © 2016–2017, Texas Instruments Incorporated SNOU140A – April 2016 – Revised May 2017 Submit Documentation Feedback Description www.ti.com LMG3410 VDC IN Q1 Gate FAULT Startup Logic VSW FAULT LMG3410 IN Q2 Gate FAULT Startup Logic PGND Copyright © 2016, Texas Instruments Incorporated Figure 1. Simplified LMG3410-HB-EVM Schematic CAUTION High-voltage levels are present on the evaluation module whenever it is energized. Proper precautions must be taken when working with the EVM. 1.1.1 FAULT The FAULT pin of LMG3410-HB-EVM is active low when an under voltage lockout on an auxiliary voltage rail, over temperature or overcurrent even occurs on the LMG3410. The FAULT signal for both LMG3410 devices are level shifted to AGND, where they are logic AND connected to the FAULT pin. CAUTION Please do NOT ignore FAULT signal when using LMG3410-HB-EVM. Turn off both top and bottom devices, if any device is generating FAULT signal. The device under fault condition may operate in undesired 3rd-quadrant mode and may be over heated and damaged due to the high source-drain voltage drop if the other device is still switching. 1.1.2 Power Pins While there are some power stage bypass capacitors on the LMG3410-HB-EVM from VDC to PGND to minimize voltage overshoot during switching, more bulk capacitance is required to hold up the DC voltage during operation. It is highly recommended to minimize, and ideally prevent, any overlap and parasitic capacitance from VSW to VDC, PGND and any logic pins. The two grounds PGND and AGND are functionally isolated from each other on the LMG3410-HB-EVM. SNOU140A – April 2016 – Revised May 2017 Submit Documentation Feedback Using the LMG3410-HB-EVM Half-Bridge and LMG34XX-BB-EVM Breakout Board EVM Copyright © 2016–2017, Texas Instruments Incorporated 5 Description 1.1.3 www.ti.com Bootstrap Mode The LMG3410-HB-EVM card can be modified to operate in bootstrap mode, where the 12V bias voltage is used to power both LMG3410 devices. This can be achieved by removing U3, U4 and R2, and placing a 20 Ω resistor on R1, a 0 Ω resistor on R18 and a 600V SOD-123 diode on D1, such as Micro Commercial Components UFM15PL-TP. Do NOT power up the LMG3410-HB-EVM when R1, R2, R18, D1, U3 and U4 are all populated. 1.1.4 Heatsink Heatsink is installed to help with heat dissipation of the LMG3410. Exposed copper pads that are attached to the die attach pad (DAP) of both the high and low side devices are provided for a low thermal impedance point to a heatsink. The two copper pads have high voltage potential difference between them so an electrically isolative thermal interface material (TIM) is required. Bergquist BP100-0.005-00-1112 double sided adhesive tape TIM and Cool Innovations 3-101004U heatsink are recommended. Figure 2. Front and Back Side Photos of LMG3410-HB-EVM 1.2 LMG34XX-BB-EVM To allow for quick operation the LMG34XX-BB-EVM is available to interface with the LMG3410-HB-EVM. This mother board is designed to operate the LMG3410 as a synchronous open loop buck converter. Easy probe locations are provided for measurement of logic and power stage voltages. 1.2.1 Bias Supply The motherboard requires one 12V bias supply. A linear drop off regulator steps the voltage down to a tightly regulated 5V for logic and auxiliary power of the LMG3410 when the LMG3410-HB-EVM is configured in isolated power mode. When the LMG3410-HB-EVM is configured in bootstrap mode the 12V input is used to power the two LMG3410 devices. 1.2.2 Logic PWM Input The LMG34XX-BB-EVM supports a single PWM, with complimentary signal and corresponding dead time generated on board. A 0 V to 5 V magnitude input square wave is required. The complementary PWM generation circuit creates 50 ns of dead time between both transitions of the PWM signals. 6 Using the LMG3410-HB-EVM Half-Bridge and LMG34XX-BB-EVM Breakout Board EVM Copyright © 2016–2017, Texas Instruments Incorporated SNOU140A – April 2016 – Revised May 2017 Submit Documentation Feedback Description www.ti.com 1.2.3 Fault Protection There is an option to disable PWM input to the FET card in the event of a fault signal from the LMG3410HB-EVM. When the FAULT Protect jumper is placed in the EN mode PWM is disabled when either LMG3410 has an active fault. This disable is not latching, so when the fault clears PWM immediately resumes. If FAULT Protect mode is not desired it can be disabled by placing the jumper in the DIS position. The FAULT LED will still illuminate when either LMG3410 has an active fault, regardless of the position of FAULT Protect jumper. 1.3 Typical Applications The LMG3410-HB-EVM is designed for use in AC/DC, DC/DC and DC/AC applications • Totem-Pole PFC converters • Phase-Shifted Full Bridge or LLC Converter • Buck converter such as the LMG34XX-BB-EVM 1.4 Features The LMG3410-HB-EVM has the following features and specifications: • Two options to bias the LMG3410, isolated power or from bootstrap diode • Over temperature, overcurrent, and under voltage lockout protection with FAULT indication that is level shifted to an AGND referenced signal • Gate logic input support of either 3.3V or 5V logic • Maximum recommended operating voltage of 480V and absolute maximum voltage of 600V The LMG34XX-BB-EVM has the following features and specifications: • Requires only a single 12V bias supply • Requires only a single 0V to 5V PWM input to generate gate drive signal • PWM disable in the event of a fault from the LMG3410-HB-EVM • Maximum recommended operating voltage of 480V and absolute maximum voltage of 600V • Maximum recommended operating inductor current of 8A SNOU140A – April 2016 – Revised May 2017 Submit Documentation Feedback Using the LMG3410-HB-EVM Half-Bridge and LMG34XX-BB-EVM Breakout Board EVM Copyright © 2016–2017, Texas Instruments Incorporated 7 Schematic 2 www.ti.com Schematic ISO_12V_L 5V D1 DNP UFM15PL-TP C1 1μF U1 5V_H 1 VCC1 VCC2 16 3 INA OUTA 14 OUTB 13 ISONC2 AGND R3 49.9 4 C2 68pF INB R4 0.1μF C4 22pF ISO_RET_H OUTC INC 12 6 NC NC 11 ISONC1 7 EN1 EN2 10 ISONC3 C8 47μF 2 8 GND1 GND1 C6 68pF 3 25 LDO5V C5 0.22μF 31 FAULT_H 32 FAULT 29 LPM L1 30 RDRV SW_H BRC2518T220K VM12V_H 28 BBSW 26 VNEG 5V_H R7 10.0k ISO_RET_H 15k 100V/ns R5 15k 40.2k 50V/ns AGND U5 17 4 1 C16 1μ F 5 5V 90121-0766 Aux Connector 1 2 3 4 5 6 7 8 9 10 11 SOURCE SOURCE SOURCE SOURCE SOURCE SOURCE SOURCE SOURCE SOURCE SOURCE SOURCE PAD 12 13 14 15 16 18 19 20 21 22 23 33 GND 24 C10 0.01μF 1206 630V C29 0.01μF 1206 630V C12 0.01μF 1206 630V C13 0.01μF 1206 630V C14 0.1μF C15 0.1μF LMG3410RWHT ISO_RET_H 5V U2 12V AGND 5V_L R11 49.9 C17 68pF ISO_RET_L NC DRAIN DRAIN DRAIN DRAIN DRAIN DRAIN DRAIN DRAIN DRAIN DRAIN DRAIN ISO_RET_H 12V AGND IN C9 2.2uF 5V 2 VDD IN_H 15 9 GND2 GND2 ISO7831FDWR Top_FET Bot_FET GaN_Fault 27 ISO_RET_H AGND 6 5 4 3 2 1 HVBUS 0 5V_H 49.9 SN74AHC1G08DBVR J1 Q1 R2 ISO_RET_H 5 AGND ISO_12V_H R1 DNP 20 C3 1 VCC1 VCC2 16 3 INA OUTA 14 4 INB OUTB 13 5 OUTC INC 12 6 NC NC 11 7 EN1 EN2 10 2 8 GND1 GND1 GND2 GND2 15 9 AGND Q2 ISO_12V_L C23 10μF 0.1μF 27 VDD 25 LDO5V 5V_L ISO_RET_L C19 22pF R12 C7 0.22μF ISO_RET_L 49.9 ISO_RET_L C11 68pF AGND ISO_RET_L R6 17.8k 17.8k 100V/ns R9 100k FAULT 29 LPM 30 RDRV 28 BBSW 26 VNEG R8 3 ISO_RET_L Q3 MGSF1N02LT1G VM12V_L C26 2.2uF 2 Power Connector IN 32 L2 SW_L BRC2518T220K 1 31 FAULT_L 10.0k 68.1k 50V/ns ISO_RET_H IN_L 5V_L 15k 100v/ns ISO7831FDWR HVBUS R18 DNP 0 C18 17 NC DRAIN DRAIN DRAIN DRAIN DRAIN DRAIN DRAIN DRAIN DRAIN DRAIN DRAIN 1 2 3 4 5 6 7 8 9 10 11 SOURCE SOURCE SOURCE SOURCE SOURCE SOURCE SOURCE SOURCE SOURCE SOURCE SOURCE PAD 12 13 14 15 16 18 19 20 21 22 23 33 GND 24 LMG3410RWHT ISO_RET_L ISO_RET_L ISO_RET_L ISO_RET_L ISO_12V_L_B 5V D4 MBR0520LT1G 4 5 6 VCC D1 EN D2 CLK GND 1 3 6 1 475μH C21 4.7μF L3 C31 4.7μF 4 C30 D8 4.7μF MBR0520LT1G 3 C27 4.7μF SN6505BDBVR D6 MMSZ4703T1G 16V C22 0.1μF 2 2 C25 0.1μF U3 ISO_12V_H 5 2 6 1 D2 MBR0520LT1G C24 4.7μF 2 VCC 5 EN 6 CLK D1 1 ISO_12V_L D2 3 GND 4 SN6505BDBVR 475μH 1 2 ISONC4 3 4 3 T2 C20 4.7μF L4 C32 4.7μF C28 D7 4.7μF MBR0520LT1G 3 T1 5 1 4 U4 4 D5 MMSZ4703T1G 16V 2 ISO_12V_H_B 5V ISO_RET_L ISO_RET_H AGND AGND ISO_RET_L_B ISO_RET_H_B Copyright © 2016, Texas Instruments Incorporated Figure 3. LMG3410-HB-EVM Schematic 8 Using the LMG3410-HB-EVM Half-Bridge and LMG34XX-BB-EVM Breakout Board EVM Copyright © 2016–2017, Texas Instruments Incorporated SNOU140A – April 2016 – Revised May 2017 Submit Documentation Feedback Schematic www.ti.com Figure 4. Recommended Footprint for LMG3410-HB-EVM SNOU140A – April 2016 – Revised May 2017 Submit Documentation Feedback Using the LMG3410-HB-EVM Half-Bridge and LMG34XX-BB-EVM Breakout Board EVM Copyright © 2016–2017, Texas Instruments Incorporated 9 Schematic www.ti.com TI HV Synchronous Buck Motherboard J1 HVIN 2 1 Vin 630V C3 0.1µF 630V C2 0.1µF C1 5µF 282841-2 PGND1 C4 D1 R1 AGND 4 1 2 2 U2A SN74LVC2G08IDCTRQ1 R21 LOW_2 0 AGND PGND C8 1µF 5V J2 12V 2 3 4 5 AGND4 6 5 4 3 2 1 5 1 LOW 6 FAULT LOW HIGH U1A SN74LVC2G14DCKR 0 2 PWM C10 39pF AGND3 112404 R20 30k C6 1µF AGND 1 R19 30k 5V 1µF R3 R18 30k AGND AGND AGND R17 30k D5 Red C7 39pF AGND J3 R16 30k R2 0 4 C5 39pF C9 R14 30k 5V 7 AGND R13 30k 1 U3B SN74LVC2G14DCKR 3 1.20k 2 LDEAD1 R12 30k 2 5 5 BAT54WS-7-F U1B 4 SN74LVC2G14DCKR R11 30k 1µF 5V 3 R10 30k 8 5V PGND VDC PGND SW HIGH HDEAD1 0448120024 AGND J4 AGND AGND PGND C12 39pF 5V C11 D2 HIGH_2 LOW_2 1µF AGND 5V AGND 5 BAT54WS-7-F R5 1 1 AGND 5 3 FAULT Indicator 6 C13 39pF 2 D3 Red 6 1.20k J7 R6 1.6k R4 0 R23 HIGH_2 0 5V 3 2 1 AGND 4 TSW-106-07-G-S U3A SN74LVC2G14DCKR 8 5V 2 6 5 4 3 2 1 U2B SN74LVC2G08IDCTRQ1 5V R7 10.0k AGND SH-J1 TSW-103-07-G-S AGND C14 1000pF AGND SW1 PGND3 PGND L1 L2 150µH 150µH 12V 12V U4 12V aux 1 2 C20 1µF 3 L3 DRQ73-470-R 47µH C21 10µF C18 1µF 4 IN 5V OUT J5 TAB GND R8 1.6k 3 5V 2 LM2940IMP-5.0/NOPB AGND PGND 2 2 4 D4 Green AGND1 AGND2 HVOUT 1 2 C15 5µF 630V C16 0.1µF 630V C17 0.1µF 282841-2 0 282834-2 ACMGND Vout R9 C19 33µF 1 J6 1 1 VAUX AGND PGND2 PGND Copyright © 2016, Texas Instruments Incorporated Figure 5. LMG34XX-BB-EVM Schematic 10 Using the LMG3410-HB-EVM Half-Bridge and LMG34XX-BB-EVM Breakout Board EVM Copyright © 2016–2017, Texas Instruments Incorporated SNOU140A – April 2016 – Revised May 2017 Submit Documentation Feedback Test Setup www.ti.com 3 Test Setup 3.1 Test Equipment DC Voltage Source: Capable of supplying the input of the EVM up to 480 V DC Bias Source: Capable of 12 V output at up to 0.7 A Function Generator: Capable of 0 V to 5 V square wave output with adjustable duty cycle and frequency in desired operating range. It is recommended to operate the LMG3410-HB-EVM and LMG34XX-BB-EVM with a switching frequency between 50 kHz to 200 kHz. Oscilloscope: Capable of at least 200 MHz operation. A 1 GHz or greater oscilloscope and probes with short ground springs are recommended for accurate measurements. DC Multimeter(s): Capable of 600 V measurement, suitable for determining operation and efficiency (if desired). DC Load: Capable of 600 V operation at up to 8 A in current-mode operation. Fan: 200 LFM minimum airflow is recommended 3.2 Recommended Test Setup The LMG3410-HB-EVM connects to the LMG34XX-BB-EVM as Figure 6 shows. Figure 6. LMG3410-HB-EVM Connected with LMG34XX-BB-EVM The LMG34XX-BB-EVM power and probe connection points are shown in Figure 7. SNOU140A – April 2016 – Revised May 2017 Submit Documentation Feedback Using the LMG3410-HB-EVM Half-Bridge and LMG34XX-BB-EVM Breakout Board EVM Copyright © 2016–2017, Texas Instruments Incorporated 11 Test Setup www.ti.com Figure 7. Recommended Connection Points PCB Notes: • Probe points for gate drive logic • 100 mil header for PWM input, PWM signals to LMG3410-HB-EVM and FAULT output • BNC connector for PWM input • 12V bias supply input • FAULT Protection option header • Power stage high voltage input • Probe point for power stage switch node • Power stage high voltage output WARNING There are very high voltages present on the EVM. Some components reach temperatures above 50°C. Precautions must be taken when handling the board. 3.3 List of Test Points Key test points on this EVM have been designed for use with oscilloscope probes with short ground springs. Using the short ground spring instead of the alligator ground lead will minimize measurement error and produce a cleaner signal with the fast switching GaN devices used on this EVM. The data shown in this user guide has been obtained using such a measurement method. 12 Using the LMG3410-HB-EVM Half-Bridge and LMG34XX-BB-EVM Breakout Board EVM Copyright © 2016–2017, Texas Instruments Incorporated SNOU140A – April 2016 – Revised May 2017 Submit Documentation Feedback Test Setup www.ti.com Table 3. Test Point Functional Description 3.4 NAME DESCRIPTION VAUX 12 V bias input connection before filter ACMGND Ground for 12 V bias input before filter 5V 5 V bias AGND1 Analog ground for logic PWM Single input PWM signal LDEAD1 Low side PWM signal before dead time generation AGND3 Analog ground for logic HDEAD1 High side PWM signal before dead time generation AGND4 Analog ground for logic LOW Low side PWM signal with dead time HIGH High side PWM signal with dead time AGND2 Analog ground for logic 12V 12 V bias after filter PGND1 Power ground HVIN DC input voltage PGND2 Power ground HVOUT DC output voltage PGND3 Power ground SW1 Switch node voltage List of Terminals Table 4. List of Terminals TERMINAL NAME DESCRIPTION J1 VIN Input DC voltage input J5 VOUT Output DC voltage output J6 12V AUX 12 V bias voltage input J3 PWM INPUT Single 0 V to 5 V PWM input for gate J4 LOGIC Header to connect PWM, FAULT logic J2 HB Card PIN Connector to interface LMG3410-HB-EVM board SNOU140A – April 2016 – Revised May 2017 Submit Documentation Feedback Using the LMG3410-HB-EVM Half-Bridge and LMG34XX-BB-EVM Breakout Board EVM Copyright © 2016–2017, Texas Instruments Incorporated 13 Test Procedure www.ti.com 4 Test Procedure 4.1 Setup The following procedure is recommended to set up the LMG34XX-BB-EVM with the LMG3410-HB-EVM: • Connect LMG3410-HB-EVM to LMG34XX-BB-EVM • Connect oscilloscope or multimeter probes to desired test points as shown in A or G • Connect the 12 V bias supply, load to the output, and input supply to the input • Connect the function generator to either the BNC connector PWM input at C or 100 mil header connector input at pin 6 (PWM) and pin 5 (GND) at B. • Enable an external fan to direct airflow across the heatsink attached to the LMG3410-HB-EVM 4.2 Startup and Operating Procedure The following procedure is recommended to enable the LMG34XX-BB-EVM with the LMG3410-HB-EVM: 1. Power up the 12 V bias supply. Ensure the top right green “Aux Enable” LED is illuminated. 2. Enable PWM on the function generator 3. Power up high voltage input supply. Ensure the red “HV Enable” LED is illuminated when the input supply is above 20 V. WARNING Do NOT turn on device at absolute maximum voltage. It is recommended to start at voltages at or below 480 V, and then increase the input voltage slowly while monitoring VSW to insure the peak voltage does not exceed the absolute maximum rating of 600 V. 4.3 Shutdown Procedure 1. Turn off input supply then PWM. Wait until red “HV Enable” LED turns off. 2. Disable 12 V bias supply 4.4 Additional Operation Notes • 14 Fault protection on the LMG34XX-BB-EVM is not latching, so if a fault clears and the LMG34XX-BBEVM is still operational PWM will resume. Using the LMG3410-HB-EVM Half-Bridge and LMG34XX-BB-EVM Breakout Board EVM Copyright © 2016–2017, Texas Instruments Incorporated SNOU140A – April 2016 – Revised May 2017 Submit Documentation Feedback Typical Characteristics www.ti.com 5 Typical Characteristics Figure 8. Recommended Probe Connection for Logic Signals SNOU140A – April 2016 – Revised May 2017 Submit Documentation Feedback Figure 9. Recommended Probe Connection for High Voltage Switch Node Using the LMG3410-HB-EVM Half-Bridge and LMG34XX-BB-EVM Breakout Board EVM Copyright © 2016–2017, Texas Instruments Incorporated 15 Typical Characteristics www.ti.com Figure 11. Switching Waveforms with 480V input, 100kHz, 30% duty cycle, 6A output Figure 10. Recommended Configuration for Heatsink and Fan Figure 12. Low to High Transition Waveform with 480V input, 100kHz, 30% duty cycle, 6A output 16 Figure 13. High to Low Transition Waveform with 480V input, 100kHz, 30% duty cycle, 6A output Using the LMG3410-HB-EVM Half-Bridge and LMG34XX-BB-EVM Breakout Board EVM Copyright © 2016–2017, Texas Instruments Incorporated SNOU140A – April 2016 – Revised May 2017 Submit Documentation Feedback EVM Assembly Drawing and PCB Layout www.ti.com 6 EVM Assembly Drawing and PCB Layout Figure 15. LMG3410-HB-EVM Inner Copper Layer 1 Figure 14. LMG3410-HB-EVM Top Layer and Components Figure 16. LMG3410-HB-EVM Inner Copper Layer 2 Figure 17. LMG3410-HB-EVM Bottom Layer and Components Figure 18. LMG34XX-BB-EVM Top Layer and Components Figure 19. LMG34XX-BB-EVM Bottom Layer and Components SNOU140A – April 2016 – Revised May 2017 Submit Documentation Feedback Using the LMG3410-HB-EVM Half-Bridge and LMG34XX-BB-EVM Breakout Board EVM Copyright © 2016–2017, Texas Instruments Incorporated 17 Bill of Materials 7 www.ti.com Bill of Materials Table 5. LMG3410-HB-EVM List of Materials 18 Qty Designator Description Part Number Manufacturer 2 C1, C16 CAP, CERM, 1 µF, 16 V, +/- 10%, X5R, 0402 EMK105BJ105KVHF Taiyo Yuden 4 C2, C6, C11, C17 CAP, CERM, 68 pF, 50 V, +/- 5%, C0G/NP0, 0402 GRM1555C1H680JA01D MuRata 4 C3, C18, C22, C25 CAP, CERM, 0.1 µF, 50 V, +/- 10%, X7R, 0402 C1005X7R1H104K050BB TDK 2 C4, C19 CAP, CERM, 22 pF, 50 V, +/- 5%, C0G/NP0, 0402 C1005C0G1H220J050BA TDK 2 C5, C7 CAP, CERM, 0.22 µF, 50 V, +/- 10%, X7R, 0603 C1608X7R1H224K080AB TDK 1 C8 CAP, CERM, 47 µF, 25 V, +/- 20%, X5R, 1206_190 C3216X5R1E476M160AC TDK 2 C9, C26 CAP, CERM, 2.2uF, 25V, +/-10%, X7R, 0805 GRM21BR71E225KA73L MuRata 4 C10, C12, C13, C29 CAP, CERM, 0.01uF, 630V, +/-10%, X7R, 1206 GRM31BR72J103KW01L MuRata 2 C14, C15 CAP, CERM, 0.1 µF, 1000 V, +/- 10%, X7R, 1812 C1812W104KDRACTU Kemet 6 C20, C21, C28, C30, C31, C32 CAP, CERM, 4.7 µF, 35 V, +/- 10%, X5R, 0603 GRM188R6YA475KE15D MuRata 1 C23 CAP, CERM, 10 µF, 25 V, +/- 10%, X7R, 1206_190 C1206C106K3RACTU Kemet 2 C24, C27 CAP, CERM, 4.7 µF, 16 V, +/- 10%, X7R, AEC-Q200 Grade 1, 0805 GCM21BR71C475KA73K MuRata 4 D2, D4, D7, D8 Diode, Schottky, 20 V, 0.5 A, SOD-123 MBR0520LT1G ON Semiconductor 2 D5, D6 Diode, Zener, 16 V, 500 mW, SOD-123 MMSZ4703T1G ON Semiconductor 1 HS1 'Cool Innovations Heat sink 1.00''x1.00'' 3-101004U Cool Innovations 1 J1 Header, 2.54mm, 6x1, Gold, R/A, TH 90121-0766 Molex 2 L1, L2 Inductor, Wirewound, 22 µH, 0.49 A, 0.56 ohm, SMD BRC2518T220K Taiyo Yuden 2 L3, L4 Coupled inductor, 0.2 A, 0.45 ohm, SMD ACM2520-601-2P-T002 TDK 2 Q1, Q2 600-V 12-A Single Channel GaN Power Stage, RWH0032A (VQFN-32) LMG3410RWHT Texas Instruments 1 Q3 MOSFET, N-CH, 20 V, 0.75 A, SOT-23 MGSF1N02LT1G ON Semiconductor 1 R2 RES, 0, 5%, 0.1 W, 0603 CRCW06030000Z0EA Vishay-Dale 4 R3, R4, R11, R12 RES, 49.9, 1%, 0.063 W, 0402 RC0402FR-0749R9L Yageo America 1 R5 RES, 15 k, 5%, 0.063 W, 0402 CRCW040215K0JNED Vishay-Dale 1 R6 RES, 17.8 k, 1%, 0.063 W, 0402 CRCW040217K8FKED Vishay-Dale 2 R7, R8 RES, 10.0 k, 1%, 0.1 W, 0402 ERJ-2RKF1002X Panasonic 1 R9 RES, 100 k, 1%, 0.063 W, 0402 RC1005F104CS Samsung ElectroMechanics 2 T1, T2 Transformer, 475uH, SMT 760390014 Wurth Elektronik 1 TIM1 'Bergquist double sided thermal tape 'TI-Bond Ply100 0.005"/.127mm(1).cu27.0mm by 27.0mm Bergquist 3 TP1, TP2, TP3 Edge-Mount Pin, Gold 3620-1-32-15-00-00-08-0 Mill-Max 2 U1, U2 High-Performance, 8000 VPK Reinforced Triple Digital Isolator, DW0016B ISO7831FDWR Texas Instruments 2 U3, U4 Low-Noise 1 A, 420 kHz Transformer Driver, SN6505BDBVR DBV0006A (SOT-6) Texas Instruments 1 U5 Single 2-Input Positive-AND Gate, DBV0005A Texas Instruments SN74AHC1G08DBVR Using the LMG3410-HB-EVM Half-Bridge and LMG34XX-BB-EVM Breakout Board EVM Copyright © 2016–2017, Texas Instruments Incorporated SNOU140A – April 2016 – Revised May 2017 Submit Documentation Feedback Bill of Materials www.ti.com Table 6. LMG34XX-BB-EVM List of Materials Qty Designator Description Part Number Manufacturer 5 5V, 12V, HVIN, HVOUT, VAUX Test Point, Compact, Red, TH 5005 Keystone 5 ACMGND, AGND1, AGND2, PGND1, PGND2 Test Point, Compact, Black, TH 5006 Keystone 2 C1, C15 CAP, Film, 5 µF, 1000 V, +/- 5%, 0.016 ohm, TH MKP1848S55010JP2C Vishay-Components 4 C2, C3, C16, C17 CAP, CERM, 0.1uF, 630V, +/-10%, X7R, 1812 GRM43DR72J104KW01L MuRata 5 C4, C6, C8, C9, C11 CAP, CERM, 1 µF, 25 V, +/- 10%, X7R, 0603 C1608X7R1E105K080AB TDK 2 C5, C13 CAP, CERM, 39 pF, 50 V, +/- 5%, C0G/NP0, 0603 C1608C0G1H390J TDK 1 C14 CAP, CERM, 1000 pF, 25 V, +/- 5%, C0G/NP0, 0603 GRM1885C1E102JA01D MuRata 2 C18, C20 CAP, CERM, 1 µF, 25 V, +/- 10%, X7R, 0603 GRM188R71E105KA12D MuRata 1 C19 CAP, TA, 33 µF, 16 V, +/- 10%, 0.35 ohm, SMD TPSB336K016R0350 AVX 1 C21 CAP, CERM, 10 µF, 25 V, +/- 10%, X5R, 0805 GRM219R61E106KA12D MuRata 2 D1, D2 Diode, Schottky, 30 V, 0.2 A, SOD-323 BAT54WS-7-F Diodes Inc. 2 D3, D5 LED, Red, SMD LS L29K-G1J2-1-Z OSRAM 1 D4 LED, Green, SMD LG L29K-G2J1-24-Z OSRAM 6 H1, H2, H3, H4, H9, H10 Machine Screw, Round, #4-40 x 1/4, Nylon, Philips panhead NY PMS 440 0025 PH B and F Fastener Supply 6 H5, H6, H7, H8, H11, H12 Standoff, Hex, 0.5"L #4-40 Nylon 1902C Keystone 2 J1, J5 Terminal Block, 2x1, 5.08mm, TH 282841-2 TE Connectivity 1 J2 Receptacle, 2.54mm, 6x1, Gold, TH 448120024 Molex 1 J3 Connector, TH, BNC 112404 Amphenol Connex 1 J4 Header, 100mil, 6x1, Gold, TH TSW-106-07-G-S Samtec 1 J6 Terminal Block, 2x1, 2.54mm, TH 282834-2 TE Connectivity 1 J7 Header, 100mil, 3x1, Gold, TH TSW-103-07-G-S Samtec 2 L1, L2 Inductor, Toroid, 150 µH, 7.5 A, 0.05 ohm, TH 2300HT-151-H-RC Bourns 1 L3 Coupled inductor, 47 µH, 1.14 A, 0.241 ohm, +/- 20%, SMD DRQ73-470-R Cooper Bussman 3 PGND, SW, VDC Pin Receptacle, .032-.046" .075" Dia, Gold, TH 0312-0-15-15-34-27-10-0 Mill-Max 2 R1, R5 RES, 1.20 k, 1%, 0.1 W, 0603 RC0603FR-071K2L Yageo America 6 R2, R3, R4, R9, R21, R23 RES, 0, 5%, 0.1 W, 0603 CRCW06030000Z0EA Vishay-Dale 2 R6, R8 RES, 1.6 k, 5%, 0.1 W, 0603 CRCW06031K60JNEA Vishay-Dale 1 R7 RES, 10.0 k, 1%, 0.1 W, 0603 ERJ-3EKF1002V Panasonic 10 R10, R11, R12, R13, R14, R16, R17, R18, R19, R20 RES, 30 k, 5%, 0.25 W, 1206 CRCW120630K0JNEA Vishay-Dale 1 SH-J1 Shunt, 100mil, Gold plated, Black 969102-0000-DA 3M 2 U1, U3 Dual Schmitt-Trigger Inverter, DCK0006A SN74LVC2G14DCKR Texas Instruments 1 U2 DUAL 2-INPUT POSITIVE-AND GATE, DCT0008A SN74LVC2G08IDCTRQ1 Texas Instruments 1 U4 1A Low Dropout Regulator, 4-pin SOT223, Pb-Free LM2940IMP-5.0/NOPB Texas Instruments SNOU140A – April 2016 – Revised May 2017 Submit Documentation Feedback Using the LMG3410-HB-EVM Half-Bridge and LMG34XX-BB-EVM Breakout Board EVM Copyright © 2016–2017, Texas Instruments Incorporated 19 Revision History www.ti.com Revision History NOTE: Page numbers for previous revisions may differ from page numbers in the current version. Changes from Original (April 2016) to A Revision .......................................................................................................... Page • • • • • • • 20 Changed Figure 1, Updated Fault connection in schematics ....................................................................... 4 Changed Section 1.1.1, Updated Fault connection description .................................................................... 5 Changed Section 1.1.4, Updated Heatsink description .............................................................................. 6 Changed Figure 2, Updated Front and Back Side Photos of LMG3410-HB-EVM................................................ 6 Changed Figure 3 and 4 ................................................................................................................. 8 Changed figures 14, 15, 16 and 17 ................................................................................................... 17 Changed Table 5, Updated LMG3410-HB-EVM List of Materials ................................................................. 18 Revision History SNOU140A – April 2016 – Revised May 2017 Submit Documentation Feedback Copyright © 2016–2017, Texas Instruments Incorporated STANDARD TERMS FOR EVALUATION MODULES 1. Delivery: TI delivers TI evaluation boards, kits, or modules, including any accompanying demonstration software, components, and/or documentation which may be provided together or separately (collectively, an “EVM” or “EVMs”) to the User (“User”) in accordance with the terms set forth herein. User's acceptance of the EVM is expressly subject to the following terms. 1.1 EVMs are intended solely for product or software developers for use in a research and development setting to facilitate feasibility evaluation, experimentation, or scientific analysis of TI semiconductors products. EVMs have no direct function and are not finished products. EVMs shall not be directly or indirectly assembled as a part or subassembly in any finished product. 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Notwithstanding the foregoing, TI shall not be liable for a nonconforming EVM if (a) the nonconformity was caused by neglect, misuse or mistreatment by an entity other than TI, including improper installation or testing, or for any EVMs that have been altered or modified in any way by an entity other 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 techniques are used to the extent TI deems necessary. TI does not test all parameters of each EVM. User's claims against TI under this Section 2 are void if User fails to notify TI of any apparent defects in the EVMs within ten (10) business days after delivery, or of any hidden defects with ten (10) business days after the defect has been detected. 2.3 TI's sole liability shall be at its option to repair or replace EVMs that fail to conform to the warranty 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 warranted for the remainder of the original warranty period. Replaced EVMs shall be warranted for a new full ninety (90) day warranty period. 3 Regulatory Notices: 3.1 United States 3.1.1 Notice applicable to EVMs not FCC-Approved: FCC NOTICE: This kit is designed to allow product developers to evaluate electronic components, circuitry, or software associated with the kit to determine whether to incorporate such items in a finished product and software developers to write software applications for use with the end product. This kit is not a finished product and when assembled may not be resold or otherwise marketed unless all required FCC equipment authorizations are first obtained. Operation is subject to the condition that this product not cause harmful interference to licensed radio stations and that this product accept harmful interference. Unless the assembled kit is designed to operate under part 15, part 18 or part 95 of this chapter, the operator of the kit must operate under the authority of an FCC license holder or must secure an experimental authorization under part 5 of this chapter. 3.1.2 For EVMs annotated as FCC – FEDERAL COMMUNICATIONS COMMISSION Part 15 Compliant: CAUTION This device complies with part 15 of the FCC Rules. Operation is subject to the following two conditions: (1) This device may not cause harmful interference, and (2) this device must accept any interference received, including interference that may cause undesired operation. Changes or modifications not expressly approved by the party responsible for compliance could void the user's authority to operate the equipment. FCC Interference Statement for Class A EVM devices NOTE: This equipment has been tested and found to comply with the limits for a Class A digital device, pursuant to part 15 of the FCC Rules. These limits are designed to provide reasonable protection against harmful interference when the equipment is operated in a commercial environment. This equipment generates, uses, and can radiate radio frequency energy and, if not installed and used in accordance with the instruction manual, may cause harmful interference to radio communications. Operation of this equipment in a residential area is likely to cause harmful interference in which case the user will be required to correct the interference at his own expense. FCC Interference Statement for Class B EVM devices NOTE: This equipment has been tested and found to comply with the limits for a Class B digital device, pursuant to part 15 of the FCC Rules. 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 installed and used in accordance with the instructions, may cause harmful interference to radio communications. However, there is no guarantee that interference will not occur in a particular installation. If this equipment does cause harmful interference to radio or television reception, which can be determined by turning the equipment off and on, the user is encouraged to try to correct the interference by one or more of the following measures: • • • • Reorient or relocate the receiving antenna. Increase the separation between the equipment and receiver. Connect the equipment into an outlet on a circuit different from that to which the receiver is connected. Consult the dealer or an experienced radio/TV technician for help. 3.2 Canada 3.2.1 For EVMs issued with an Industry Canada Certificate of Conformance to RSS-210 or RSS-247 Concerning EVMs Including Radio Transmitters: This device complies with Industry Canada license-exempt RSSs. Operation is subject to the following two conditions: (1) this device may not cause interference, and (2) this device must accept any interference, including interference that may cause undesired operation of the device. Concernant les EVMs avec appareils radio: Le présent appareil est conforme aux CNR d'Industrie Canada applicables aux appareils radio exempts de licence. L'exploitation est autorisée aux deux conditions suivantes: (1) l'appareil ne doit pas produire de brouillage, et (2) l'utilisateur de l'appareil doit accepter tout brouillage radioélectrique subi, même si le brouillage est susceptible d'en compromettre le fonctionnement. Concerning EVMs Including Detachable Antennas: Under Industry Canada regulations, this radio transmitter may only operate using an antenna of a type and maximum (or lesser) gain approved for the transmitter by Industry Canada. To reduce potential radio interference to other users, the antenna type and its gain should be so chosen that the equivalent isotropically radiated power (e.i.r.p.) is not more than that necessary for successful communication. This radio transmitter has been approved 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 réglementation d'Industrie Canada, le présent émetteur radio peut fonctionner avec une antenne d'un type et d'un gain maximal (ou inférieur) approuvé pour l'émetteur par Industrie Canada. Dans le but de réduire les risques de brouillage radioélectrique à l'intention des autres utilisateurs, il faut choisir le type d'antenne et son gain de sorte que la puissance isotrope rayonnée équivalente (p.i.r.e.) ne dépasse pas l'intensité nécessaire à l'établissement d'une communication satisfaisante. Le présent émetteur radio a été approuvé par Industrie Canada pour fonctionner avec les types d'antenne énumérés dans le manuel d’usage et ayant un gain admissible maximal et l'impédance requise pour chaque type d'antenne. Les types d'antenne non inclus dans cette liste, ou dont le gain est supérieur au gain maximal indiqué, sont strictement interdits pour l'exploitation de l'émetteur 3.3 Japan 3.3.1 Notice for EVMs delivered in Japan: Please see http://www.tij.co.jp/lsds/ti_ja/general/eStore/notice_01.page 日本国内に 輸入される評価用キット、ボードについては、次のところをご覧ください。 http://www.tij.co.jp/lsds/ti_ja/general/eStore/notice_01.page 3.3.2 Notice for Users of EVMs Considered “Radio Frequency Products” in Japan: EVMs entering Japan may not be certified by TI as conforming to Technical Regulations of Radio Law of Japan. If User uses EVMs in Japan, not certified to Technical Regulations of Radio Law of Japan, User is required to follow the 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 should be verified by User): 1. 2. 3. Use EVMs in a shielded room or any other test facility as defined in the notification #173 issued by Ministry of Internal Affairs and Communications on March 28, 2006, based on Sub-section 1.1 of Article 6 of the Ministry’s Rule for Enforcement of Radio Law of Japan, Use EVMs only after User obtains the license of Test Radio Station as provided in Radio Law of Japan with respect to EVMs, or Use of EVMs only after User obtains the Technical Regulations Conformity Certification as provided in Radio Law of Japan with respect to EVMs. Also, do not transfer EVMs, unless User gives the same notice above to the transferee. Please note that if User does not follow the instructions above, User will be subject to penalties of Radio Law of Japan. 【無線電波を送信する製品の開発キットをお使いになる際の注意事項】 開発キットの中には技術基準適合証明を受けて いないものがあります。 技術適合証明を受けていないもののご使用に際しては、電波法遵守のため、以下のいずれかの 措置を取っていただく必要がありますのでご注意ください。 1. 2. 3. 電波法施行規則第6条第1項第1号に基づく平成18年3月28日総務省告示第173号で定められた電波暗室等の試験設備でご使用 いただく。 実験局の免許を取得後ご使用いただく。 技術基準適合証明を取得後ご使用いただく。 なお、本製品は、上記の「ご使用にあたっての注意」を譲渡先、移転先に通知しない限り、譲渡、移転できないものとします。 上記を遵守頂けない場合は、電波法の罰則が適用される可能性があることをご留意ください。 日本テキサス・イ ンスツルメンツ株式会社 東京都新宿区西新宿6丁目24番1号 西新宿三井ビル 3.3.3 Notice for EVMs for Power Line Communication: Please see http://www.tij.co.jp/lsds/ti_ja/general/eStore/notice_02.page 電力線搬送波通信についての開発キットをお使いになる際の注意事項については、次のところをご覧ください。http:/ /www.tij.co.jp/lsds/ti_ja/general/eStore/notice_02.page 3.4 European Union 3.4.1 For EVMs subject to EU Directive 2014/30/EU (Electromagnetic Compatibility Directive): This is a class A product intended for use in environments other than domestic environments that are connected to a low-voltage power-supply network that supplies buildings used for domestic purposes. In a domestic environment this product may cause radio interference in which case the user may be required to take adequate measures. 4 EVM Use Restrictions and Warnings: 4.1 EVMS ARE NOT FOR USE IN FUNCTIONAL SAFETY AND/OR SAFETY CRITICAL EVALUATIONS, INCLUDING BUT NOT LIMITED TO EVALUATIONS OF LIFE SUPPORT APPLICATIONS. 4.2 User must read and apply the user guide and other available documentation provided by TI regarding the EVM prior to handling or using the EVM, including without limitation any warning or restriction notices. The notices contain important safety information related to, for example, temperatures and voltages. 4.3 Safety-Related Warnings and Restrictions: 4.3.1 User shall operate the EVM within TI’s recommended specifications and environmental considerations stated in the user guide, other available documentation provided by TI, and any other applicable requirements and employ reasonable and customary safeguards. Exceeding the specified performance ratings and specifications (including but not limited to input and output voltage, current, power, and environmental ranges) for the EVM may cause personal injury or death, or property damage. If there are questions concerning performance ratings and specifications, User should contact a TI field representative prior to connecting interface electronics including input power and intended 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 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, current sense resistors, and heat sinks, which can be identified using the information in the associated documentation. When working with the EVM, please be aware that the EVM may become very warm. 4.3.2 EVMs are intended solely for use by technically qualified, professional electronics experts who are familiar with the dangers and application risks associated with handling electrical mechanical components, systems, and subsystems. User assumes all responsibility and liability for proper and safe handling and use of the EVM by User or its employees, affiliates, contractors or designees. User assumes all responsibility and liability to ensure that 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 electrical shock hazard. User assumes all responsibility and liability for any improper or unsafe handling or use of the EVM by User or its employees, affiliates, contractors or designees. 4.4 User assumes all responsibility and liability to determine whether the EVM is subject to any applicable international, federal, state, or local laws and regulations related to User’s handling and use of the EVM and, if applicable, User assumes all responsibility and liability for compliance in all respects with such laws and regulations. User assumes all responsibility and liability for proper disposal and recycling of the EVM consistent with all applicable international, federal, state, and local requirements. 5. Accuracy of Information: To the extent TI provides information on the availability and function of EVMs, TI attempts to be as accurate as possible. However, TI does not warrant the accuracy of EVM descriptions, EVM availability or other information on its websites as accurate, complete, reliable, current, or error-free. 6. Disclaimers: 6.1 EXCEPT AS SET FORTH ABOVE, EVMS AND ANY MATERIALS PROVIDED WITH THE EVM (INCLUDING, BUT NOT LIMITED TO, REFERENCE DESIGNS AND THE DESIGN OF THE EVM ITSELF) ARE PROVIDED "AS IS" AND "WITH ALL FAULTS." TI DISCLAIMS ALL OTHER WARRANTIES, EXPRESS OR IMPLIED, REGARDING SUCH ITEMS, INCLUDING BUT NOT LIMITED TO ANY EPIDEMIC FAILURE WARRANTY OR IMPLIED WARRANTIES OF MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE OR NON-INFRINGEMENT OF ANY THIRD PARTY PATENTS, COPYRIGHTS, TRADE SECRETS OR OTHER INTELLECTUAL PROPERTY RIGHTS. 6.2 EXCEPT FOR THE LIMITED RIGHT TO USE THE EVM SET FORTH HEREIN, NOTHING IN THESE TERMS SHALL BE CONSTRUED AS GRANTING OR CONFERRING ANY RIGHTS BY LICENSE, PATENT, OR ANY OTHER INDUSTRIAL OR INTELLECTUAL PROPERTY RIGHT OF TI, ITS SUPPLIERS/LICENSORS OR ANY OTHER THIRD PARTY, TO USE THE EVM IN ANY FINISHED END-USER OR READY-TO-USE FINAL PRODUCT, OR FOR ANY INVENTION, DISCOVERY OR IMPROVEMENT, REGARDLESS OF WHEN MADE, CONCEIVED OR ACQUIRED. 7. USER'S INDEMNITY OBLIGATIONS AND REPRESENTATIONS. USER WILL DEFEND, INDEMNIFY AND HOLD TI, ITS LICENSORS AND THEIR REPRESENTATIVES HARMLESS FROM AND AGAINST ANY AND ALL CLAIMS, DAMAGES, LOSSES, EXPENSES, COSTS AND LIABILITIES (COLLECTIVELY, "CLAIMS") ARISING OUT OF OR IN CONNECTION WITH ANY HANDLING OR USE OF THE EVM THAT IS NOT IN ACCORDANCE WITH THESE TERMS. THIS OBLIGATION SHALL APPLY WHETHER CLAIMS ARISE UNDER STATUTE, REGULATION, OR THE LAW OF TORT, CONTRACT OR ANY OTHER LEGAL THEORY, AND EVEN IF THE EVM FAILS TO PERFORM AS DESCRIBED OR EXPECTED. 8. Limitations on Damages and Liability: 8.1 General Limitations. IN NO EVENT SHALL TI BE LIABLE FOR ANY SPECIAL, COLLATERAL, INDIRECT, PUNITIVE, INCIDENTAL, CONSEQUENTIAL, OR EXEMPLARY DAMAGES IN CONNECTION WITH OR ARISING OUT OF THESE TERMS OR THE USE OF THE EVMS , REGARDLESS OF WHETHER TI HAS BEEN ADVISED OF THE POSSIBILITY OF SUCH DAMAGES. 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