INA290EVM

User's Guide SBOU230 – October 2019 INA290EVM This user’s guide describes the characteristics, operation, and use of the INA290 evaluation module (EVM). This EVM is designed to evaluate the performance of the INA290 voltage-output, current shunt monitor in a variety of configurations. Throughout this document, the terms evaluation board, evaluation module, and EVM are synonymous with the INA290EVM. This document also includes a schematic, reference printed-circuit board (PCB) layouts, and a complete bill of materials (BOM). SBOU230 – October 2019 Submit Documentation Feedback INA290EVM Copyright © 2019, Texas Instruments Incorporated 1 www.ti.com 1 2 3 4 5 6 Contents General Texas Instruments High Voltage Evaluation (TI HV EVM) User Safety Guidelines ...................... 3 Overview ...................................................................................................................... 5 2.1 EVM Kit Contents ................................................................................................... 5 2.2 Related Documentation From Texas Instruments .............................................................. 5 Hardware ..................................................................................................................... 6 3.1 Features ............................................................................................................. 6 Operation ..................................................................................................................... 7 4.1 Quick Start Setup ................................................................................................... 7 4.2 Measurements ...................................................................................................... 7 EVM Components ........................................................................................................... 8 5.1 R2_An, R3_An, R4_An, C2_An, C3_An ........................................................................ 8 5.2 C1_An ............................................................................................................... 8 5.3 R1_An ............................................................................................................... 8 5.4 U1_An (INA290) .................................................................................................... 8 Schematic, PCB Layout, and Bill of Materials ........................................................................... 9 6.1 Schematics .......................................................................................................... 9 6.2 PCB Layout ........................................................................................................ 14 6.3 Bill of Materials .................................................................................................... 16 List of Figures ................................................................................. 9 ................................................................................ 10 INA290EVM Schematic: Gain A3 Panel ................................................................................ 11 INA290EVM Schematic: Gain A4 Panel ................................................................................ 12 INA290EVM Schematic: Gain A5 Panel ................................................................................ 13 INA290EVM Top Overlay ................................................................................................. 14 INA290EVM Bottom Overlay ............................................................................................. 14 INA290EVM Top Layer .................................................................................................... 14 INA290EVM Bottom Layer ............................................................................................... 14 INA290EVM Top Solder .................................................................................................. 14 INA290EVM Bottom Solder .............................................................................................. 14 INA290EVM Drill Drawing ................................................................................................. 15 1 INA290EVM Schematic: Gain A1 Panel 2 INA290EVM Schematic: Gain A2 Panel 3 4 5 6 7 8 9 10 11 12 List of Tables 1 INA290 Gain Option Summary............................................................................................. 5 2 INA290EVM Kit Contents ................................................................................................... 5 3 Related Documentation ..................................................................................................... 5 4 Bill of Materials ............................................................................................................. 16 Trademarks All trademarks are the property of their respective owners. 2 INA290EVM SBOU230 – October 2019 Submit Documentation Feedback Copyright © 2019, Texas Instruments Incorporated General Texas Instruments High Voltage Evaluation (TI HV EVM) User Safety Guidelines www.ti.com 1 General Texas Instruments High Voltage Evaluation (TI HV EVM) User Safety Guidelines WARNING Always follow TI’s setup 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 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. WARNING Failure to follow warnings and instructions may result in personal injury, property damage or death due to electrical shock and 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 suitable qualified, you should immediately stop 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 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. d. All interface circuits, power supplies, evaluation modules, instruments, meters, scopes and other related apparatus used in a development environment exceeding 50Vrms/75VDC must be electrically located within a protected Emergency Power Off EPO protected power strip. e. Use stable and nonconductive work surface. f. Use adequately insulated clamps and wires to attach measurement probes and instruments. No freehand testing whenever possible. 2. 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. a. De-energize the TI HV EVM and all its inputs, outputs and electrical loads before performing any electrical or other diagnostic measurements. Revalidate that TI HV EVM power has been safely de-energized. b. With the EVM confirmed de-energized, proceed with required electrical circuit configurations, wiring, measurement equipment connection, and other application needs, while still assuming the EVM circuit and measuring instruments are electrically live. c. After EVM readiness is complete, energize the EVM as intended. 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. SBOU230 – October 2019 Submit Documentation Feedback INA290EVM Copyright © 2019, Texas Instruments Incorporated 3 General Texas Instruments High Voltage Evaluation (TI HV EVM) User Safety Guidelines www.ti.com 3. Personal Safety a. Wear personal protective equipment (for example, latex gloves or safety glasses with side shields) or protect EVM in an adequate lucent plastic box with interlocks to protect from accidental touch. Limitation for safe use: EVMs are not to be used as all or part of a production unit. 4 INA290EVM SBOU230 – October 2019 Submit Documentation Feedback Copyright © 2019, Texas Instruments Incorporated Overview www.ti.com 2 Overview The INA290-Q1 device is a voltage-output, high-side current sense amplifier with an enable pin in a verysmall SC-70 (5) package. As shown in Table 1, the INA290 has gains that range from 20 V/V to 500 V/V, depending on the gain option that is selected. The voltage developed across the device inputs is amplified by the corresponding gain of the specific device, and is presented at the output pin. The device can accurately sense voltage drops across shunts at 2.7-V to +110-V common-mode voltages, dependent of supply voltages.The device survives common-mode voltages from –20 V to +120 V. The device operates with supply voltages between 2.7 V and 20 V, and draws a typical of 350 µA at room temperature. Table 1. INA290 Gain Option Summary (1) 2.1 Product (1) Gain (V/V) INA290A1 20 INA290A2 50 INA290A3 100 INA290A4 200 INA290A5 500 INA290B-Q1 is a preview device. EVM Kit Contents Table 2 summarizes the contents of the INA290EVM kit. Contact the nearest Texas Instruments Product Information Center if any component is missing. TI also recommends to check the INA290-Q1 device product folder at www.ti.com for any further information regarding this product. Table 2. INA290EVM Kit Contents Item INA290EVM test board 2.2 Item Part Number Quantity INA290EVM 1 Related Documentation From Texas Instruments This document provides information regarding Texas Instruments' integrated circuits used in the assembly of the INA290EVM. Table 3. Related Documentation Document Literature Number INA290-Q1 product data sheet SBOS955 SBOU230 – October 2019 Submit Documentation Feedback INA290EVM Copyright © 2019, Texas Instruments Incorporated 5 Hardware 3 www.ti.com Hardware The INA290EVM provides a basic functional evaluation of the INA290. The fixture layout is not intended to be a model for the target circuit, nor is it laid out for electromagnetic compatibility (EMC) testing. The INA290EVM is one PCB with five optional PCB cutouts the engineer can use to test each of the five gain options (1 to 5) listed in Table 1. Each PCB cutout has one INA290n device (where n is 1, 2, 3, 4, or 5), test points and sockets for external hardware connections, and pads to solder down optional circuitry. 3.1 Features The INA290EVM PCB provides the following features: • Evaluation of all gain options through provided device boards • Ease of access to device pins with test points • Pads and sockets for optional filtering at the input pins and output pin • Multiple input signal options, including a method to solder a shunt resistor (2512) and safely measure current up to 5 A. See the device data sheet for comprehensive information about the INA290 and the available gain options. 6 INA290EVM SBOU230 – October 2019 Submit Documentation Feedback Copyright © 2019, Texas Instruments Incorporated Operation www.ti.com 4 Operation 4.1 Quick Start Setup Follow these procedures to set up and use one of the INA290EVM panels. For these instructions, n is gain option 1, 2, 3, 4, or 5. Step 1. Choose the desired gain option panel variation. Step 2. Connect an external DC supply voltage (between 2.7 V and 20 V) to a VS test point. Connect the ground reference of that supply to a GND test point on the same panel. Step 3. Provide a differential input voltage signal to the Vin+ and Vin– nodes by connecting the signal leads to the J1_n pin 1 and J1_n pin 2 on the EVM, as explained in Section 4.2. The INA290 is a unidirectional current-sensing device because there is no reference pin. The device can only measure current in one direction. 4.2 Measurements The user can either emulate the voltage developed across a sense resistor based on a given set of system conditions with the INA290EVM, or connect the device inputs to an external shunt. The user can also solder a surface-mount technology (SMT) shunt resistor across the Vin+ and Vin– pads, and these inputs can be connected in series with the external system and load. To configure a measurement evaluation without a shunt resistor, follow this procedure: 1. Connect a positive differential voltage across the Vin+ (J1_n) and Vin– (J1_n) tabs. Given the internal GND reference of the device, make sure that the Vin+ pin is the more positive of the two inputs. 2. Connect a 2.7-V to 110-V common-mode voltage to the inputs if the differential voltage supply is a floating supply. Connect the positive lead of the external voltage source to the Vin– (J1_n) tab and source ground to a GND test point. The minimum common-mode voltage should be >VS. This action effectively raises the absolute common-mode voltage of the input pins, while still retaining a positive input differential signal. 3. Measure the output voltage at the Vout test point with respect to GND. To configure a measurement evaluation with a shunt resistor, follow this procedure: 1. Solder a 2512 resistor at the R1_n pads that connects the Vin+ (J1_n) and Vin– (J1_n) inputs. 2. Connect the Vin+ (J1_n) and Vin– (J1_n) tabs in series with the load and bus voltage sources while powered off. WARNING Make sure that the equipment (shunt resistor, wires, connectors, and so on) can support the amperage and power dissipation first before you measure the current. Also make sure that the current flowing through J1 does not exceed 5 A. Failure to do so can result in hot surfaces (> 55°C), damage to the EVM, or personal injury. 3. Power on the system and measure the output voltage at the Vout test point. Vout is equal to the gain of the device multiplied by the differential voltage measured directly at the device input pins. SBOU230 – October 2019 Submit Documentation Feedback INA290EVM Copyright © 2019, Texas Instruments Incorporated 7 EVM Components 5 www.ti.com EVM Components This section summarizes the INA290EVM components. For these instructions, n is gain option 1, 2, 3, 4, or 5. 5.1 R2_An, R3_An, R4_An, C2_An, C3_An R2_An, R3_An, R4_An, are factory-installed 0-Ω 0603 resistors. C2_An, C3_An, are not populated. Collectively, these pads allow user-defined filters for the input pins (IN+ and IN–) and the output pin (OUT) of the INA290. If a filter is desired, remove these resistors and replace them with > 0-Ω SMT resistors and populate the capacitor pads with capacitors. Consider the input bias current of the device when using input filtering. 5.2 C1_An C1_An is a 0.1-µF, power-supply bypass capacitor. 5.3 R1_An R1_An is unpopulated, but allows the user to solder down a surface-mount shunt resistor between the Vin+ and Vin– pads sensed by IN+ and IN– input pins. If used, make sure R1_An has proper power dissipation for the selected current load. The chosen resistor must have a 2512 footprint. 5.4 U1_An (INA290) U1_An is the location for the INA290An test device. Consider these factors when selecting the appropriate device gain: • The differential input voltage is either applied across the inputs or developed based on the load current that flows through the shunt resistor. • Make sure that the output voltage does not exceed the supply voltage. This limiting factor requires attention to device selection. • The selected device must allow the output voltage to remain within the acceptable range after the developed input voltage is amplified by the respective device gain. The output voltage must remain within the device-specified swing limitations for response in the linear range. • An output below the minimum allowable output requires a device with a higher gain. Likewise, an output above the maximum allowable output requires a device with a lower gain. 8 INA290EVM SBOU230 – October 2019 Submit Documentation Feedback Copyright © 2019, Texas Instruments Incorporated Schematic, PCB Layout, and Bill of Materials www.ti.com 6 Schematic, PCB Layout, and Bill of Materials NOTE: Board layouts are not to scale. These figures are intended to show how the board is laid out. They are not intended to be used for INA290EVM PCB manufacturing. 6.1 Schematics Figure 1 through Figure 5 show the schematics for the A pinout of the INA290EVM PCB for all gain options. Figure 1. INA290EVM Schematic: Gain A1 Panel SBOU230 – October 2019 Submit Documentation Feedback INA290EVM Copyright © 2019, Texas Instruments Incorporated 9 Schematic, PCB Layout, and Bill of Materials www.ti.com Figure 2. INA290EVM Schematic: Gain A2 Panel 10 INA290EVM SBOU230 – October 2019 Submit Documentation Feedback Copyright © 2019, Texas Instruments Incorporated Schematic, PCB Layout, and Bill of Materials www.ti.com Figure 3. INA290EVM Schematic: Gain A3 Panel SBOU230 – October 2019 Submit Documentation Feedback INA290EVM Copyright © 2019, Texas Instruments Incorporated 11 Schematic, PCB Layout, and Bill of Materials www.ti.com Figure 4. INA290EVM Schematic: Gain A4 Panel 12 INA290EVM SBOU230 – October 2019 Submit Documentation Feedback Copyright © 2019, Texas Instruments Incorporated Schematic, PCB Layout, and Bill of Materials www.ti.com Figure 5. INA290EVM Schematic: Gain A5 Panel SBOU230 – October 2019 Submit Documentation Feedback INA290EVM Copyright © 2019, Texas Instruments Incorporated 13 Schematic, PCB Layout, and Bill of Materials 6.2 www.ti.com PCB Layout Figure 6 through Figure 12 show the PCB layout for the INA290EVM. 14 Figure 6. INA290EVM Top Overlay Figure 7. INA290EVM Bottom Overlay Figure 8. INA290EVM Top Layer Figure 9. INA290EVM Bottom Layer INA290EVM SBOU230 – October 2019 Submit Documentation Feedback Copyright © 2019, Texas Instruments Incorporated Schematic, PCB Layout, and Bill of Materials www.ti.com Figure 10. INA290EVM Top Solder Figure 11. INA290EVM Bottom Solder Figure 12. INA290EVM Drill Drawing SBOU230 – October 2019 Submit Documentation Feedback INA290EVM Copyright © 2019, Texas Instruments Incorporated 15 Schematic, PCB Layout, and Bill of Materials 6.3 www.ti.com Bill of Materials Table 4 provides the parts list for the INA290EVM. Table 4. Bill of Materials Designator QTY Value C1_A1, C1_A2, C1_A3, C1_A4, C1_A5 5 0.1uF H1_A1, H1_A2, H1_A3, H1_A4, H1_A5, H2_A1, H2_A2, H2_A3, H2_A4, H2_A5, H3_A1, H3_A2, H3_A3, H3_A4, H3_A5, H4_A1, H4_A2, H4_A3, H4_A4, H4_A5 Description Package Reference Part Number Manufacturer CAP, CERM, 0.1 uF, 25 V, +/- 10%, X7R, AEC-Q200 Grade 1, 0603 0603 CGA3E2X7R1E104K080A TDK A 20 Bumpon, Cylindrical, 0.312 X 0.200, Black Black Bumpon SJ61A1 3M J1_A1, J1_A2, J1_A3, J1_A4, J1_A5 5 Terminal Block, 3.5mm Pitch, 2x1, TH 7.0x8.2x6.5mm ED555/2DS On-Shore Technology R2_A1, R2_A2, R2_A3, R2_A4, R2_A5, R3_A1, R3_A2, R3_A3, R3_A4, R3_A5, R4_A1, R4_A2, R4_A3, R4_A4, R4_A5 15 RES, 0, 5%, 0.125 W, 0603 0603 MCT06030Z0000ZP500 Vishay/Beyschlag TP1_A1, TP1_A2, TP1_A3, TP1_A4, TP1_A5, TP2_A1, TP2_A2, TP2_A3, TP2_A4, TP2_A5, TP3_A1, TP3_A2, TP3_A3, TP3_A4, TP3_A5, TP4_A1, TP4_A2, TP4_A3, TP4_A4, TP4_A5 20 Test Point, Miniature, SMT Testpoint_Keystone_Miniature 5015 Keystone U1_A1 1 INA290A1IDCKR, DCK0005A (SOT-SC70-5) DCK0005A INA290A1IDCKR Texas Instruments U1_A2 1 INA290A2IDCKR, DCK0005A (SOT-SC70-5) DCK0005A INA290A2IDCKR Texas Instruments U1_A3 1 INA290A3IDCKR, DCK0005A (SOT-SC70-5) DCK0005A INA290A3IDCKR Texas Instruments U1_A4 1 INA290A4IDCKR, DCK0005A (SOT-SC70-5) DCK0005A INA290A4IDCKR Texas Instruments U1_A5 1 INA290A5IDCKR, DCK0005A (SOT-SC70-5) DCK0005A INA290A5IDCKR Texas Instruments C2_A1, C2_A2, C2_A3, C2_A4, C2_A5 0 0.1uF CAP, CERM, 0.1 uF, 25 V, +/- 10%, X7R, AEC-Q200 Grade 1, 0603 0603 CGA3E2X7R1E104K080A TDK A C3_A1, C3_A2, C3_A3, C3_A4, C3_A5 0 100pF CAP, CERM, 100 pF, 50 V, +/- 10%, X7R, 0603 0603 CL10B101KB8NNNC Samsung Electro-Mechanics FID1, FID2, FID3 0 Fiducial mark. There is nothing to buy or mount. N/A N/A N/A R1_A1, R1_A2, R1_A3, R1_A4, R1_A5 0 RES, 0.01, 1%, 3 W, 2512 2512 CRA2512-FZ-R010ELF Bourns 16 0 0.01 INA290EVM SBOU230 – October 2019 Submit Documentation Feedback Copyright © 2019, Texas Instruments Incorporated IMPORTANT NOTICE AND DISCLAIMER TI PROVIDES TECHNICAL AND RELIABILITY DATA (INCLUDING DATA SHEETS), DESIGN RESOURCES (INCLUDING REFERENCE DESIGNS), APPLICATION OR OTHER DESIGN ADVICE, WEB TOOLS, SAFETY INFORMATION, AND OTHER RESOURCES “AS IS” AND WITH ALL FAULTS, AND DISCLAIMS ALL WARRANTIES, EXPRESS AND IMPLIED, INCLUDING WITHOUT LIMITATION ANY IMPLIED WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE OR NON-INFRINGEMENT OF THIRD PARTY INTELLECTUAL PROPERTY RIGHTS. These resources are intended for skilled developers designing with TI products. You are solely responsible for (1) selecting the appropriate TI products for your application, (2) designing, validating and testing your application, and (3) ensuring your application meets applicable standards, and any other safety, security, regulatory or other requirements. These 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 reproduction and display of these resources is prohibited. No license is granted to any other TI intellectual property right or to any third party intellectual property right. TI disclaims responsibility for, and you will fully indemnify TI and its representatives against, any claims, damages, costs, losses, and liabilities arising out of your use of these resources. TI’s products are provided subject to TI’s Terms of Sale or other applicable terms available either on ti.com or provided in conjunction with such TI products. TI’s provision of these resources does not expand or otherwise alter TI’s applicable warranties or warranty disclaimers for TI products. TI objects to and rejects any additional or different terms you may have proposed. IMPORTANT NOTICE Mailing Address: Texas Instruments, Post Office Box 655303, Dallas, Texas 75265 Copyright © 2022, Texas Instruments Incorporated