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INA190EVM Schematic and PCB Layout

12

SBOU201A – April 2018 – Revised September 2018

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Copyright © 2018, Texas Instruments Incorporated

INA190EVM User's Guide

Figure 8. INA190EVM Top Solder

Figure 9. INA190EVM Bottom Solder

Figure 10. INA190EVM Drill Drawing

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Summary of Contents for INA190EVM

Page 1: ...module EVM This EVM is designed to evaluate the performance of the INA190 voltage output current shunt monitor in a variety of configurations This document also includes a schematic reference printed circuit board PCB layouts and a complete bill of materials BOM Contents 1 Overview 2 2 INA190EVM Hardware 3 3 Quick Start Setup and Use 4 4 INA190EVM Circuit and Components 5 5 Reference Voltage Setup...

Page 2: ...directional zero drift current shunt monitors This family of devices has gains that range from 25 V V to 500 V V The voltage developed across the device inputs is amplified by the corresponding gain of the specific device and is presented at the output pin These devices can accurately sense voltage drops across shunts at common mode voltages from 0 1 V to 40 V independent of supply voltages These ...

Page 3: ...it nor is it laid out for electromagnetic compatibility EMC testing The INA190EVM consists of one PCB with an option to cut out six individual PCBs one for each of the five gain variants INA190A1 INA190A2 INA190A3 INA190A4 and INA190A5 Each of the PCB cutouts consists of one INA190AXIRSW device where x is 1 2 3 4 and 5 and test points for external hardware connections as well as pads to solder dow...

Page 4: ... pads these inputs can be connected in series with their system and load To configure a measurement evaluation without a shunt resistor follow these procedures 1 Connect a differential voltage to the IN J0x and IN J1x tabs With the reference voltage set at ground ensure that the IN pin is the more positive of the two inputs 2 Additionally if the differential voltage supply is a floating supply con...

Page 5: ... and IN inputs If used ensure R8x has proper power dissipation for the user set current load This resistor chosen must at a minimum have a 0603 Imperial footprint 4 6 U1x INA190 U1x is the location for the INA190x test device Six device boards are supplied with the INA190EVM board Each board is populated with one of the available device gains This option allows users to test the devices and determ...

Page 6: ...age reference voltage and gain of the selected device 5 Reference Voltage Setup The INA190 devices allow for the use of an external reference through the REF pin The INA190EVM provides a test point to drive the REF pin externally or pads to solder a buffer amplifier to drive a custom voltage generated from the resistor divider off the VS power plane The reference determines what offset the output ...

Page 7: ...going into the IN and IN pins of the INA190 When measuring a small current it is desirable to minimize the input bias currents of the device which is in the nanoamps The input bias current could increase due to leakage currents sinking into a nearby ground plane and this is simply due to finite resistance of PCB material and a voltage potential This voltage potential only grows as common mode volt...

Page 8: ...µF C13 GND3 0 002 R83 1 2 3 J43 M20 8770342 GND3 VS3 J03 IN J13 IN J01 IN J11 IN GND1 1 2 3 J31 1 2 3 J33 GND3 4 3 2 1 5 V V U23 TLV6001IDBVR 4 3 2 1 5 V V U21 TLV6001IDBVR 0 R33 0 R31 TP43 TP41 TP51 TP53 TP63 TP61 TP81 TP83 INA190EVM Schematic and PCB Layout www ti com 8 SBOU201A April 2018 Revised September 2018 Submit Documentation Feedback Copyright 2018 Texas Instruments Incorporated INA190EV...

Page 9: ...64 0 1µF C44 0 R74 GND4 10 0k R24 0 1µF C54 GND4 NC 1 NC 2 IN 3 IN 4 NC 5 VS 6 ENABLE 7 REF 8 GND 9 OUT 10 U14 INA190A4RSW GND4 0 1µF C14 GND4 4 3 2 1 5 V V U24 TLV6001IDBVR 0 002 R84 1 2 3 J44 M20 8770342 GND4 VS4 J02 IN J12 IN J04 IN J14 IN 1 2 3 J32 GND2 REF2 REF2 1 2 3 J34 GND4 4 3 2 1 5 V V U22 TLV6001IDBVR 0 R32 0 R34 TP44 TP42 TP54 TP52 TP64 TP62 TP82 TP84 www ti com INA190EVM Schematic and...

Page 10: ...µF C45 0 R75 GND5 10 0k R25 0 1µF C55 GND5 NC 1 NC 2 IN 3 IN 4 NC 5 VS 6 ENABLE 7 REF 8 GND 9 OUT 10 U15 INA190A5RSW GND5 0 1µF C15 GND5 4 3 2 1 5 V V U25 TLV6001IDBVR 0 002 R85 1 2 3 J45 M20 8770342 GND5 VS5 J0 IN J1 IN J05 IN J15 IN 1 2 3 J3 GND 1 2 3 J35 GND5 4 3 2 1 5 V V U2 TLV6001IDBVR 0 R3 0 R35 TP55 TP45 TP65 TP4 TP5 TP6 0 R4 VG TP8 TP85 INA190EVM Schematic and PCB Layout www ti com 10 SBO...

Page 11: ...ocumentation Feedback Copyright 2018 Texas Instruments Incorporated INA190EVM User s Guide 7 2 PCB Layout Figure 4 through Figure 10 illustrate the PCB layout for the INA190EVM Figure 4 INA190EVM Top Overlay Figure 5 INA190EVM Bottom Overlay Figure 6 INA190EVM Top Layer Figure 7 INA190EVM Bottom Layer ...

Page 12: ...om 12 SBOU201A April 2018 Revised September 2018 Submit Documentation Feedback Copyright 2018 Texas Instruments Incorporated INA190EVM User s Guide Figure 8 INA190EVM Top Solder Figure 9 INA190EVM Bottom Solder Figure 10 INA190EVM Drill Drawing ...

Page 13: ...ica R3 R4 R5 R6 R7 R31 R32 R33 R34 R35 R51 R52 R53 R54 R55 R61 R62 R63 R64 R65 R71 R72 R73 R74 R75 17 0 Ω RES 0 5 0 1 W 0603 0603 ERJ 3GEY0R00V Panasonic TP3 TP31 TP32 TP33 TP34 TP35 TP4 TP41 TP42 TP43 TP44 TP45 TP5 TP51 TP52 TP53 TP54 TP5 TP6 TP61 TP62 TP63 TP64 TP65 24 Test Point Miniature SMT Testpoint_Keystone_Miniature 5015 Keystone U1 U15 2 500 V V Low Supply Voltage Output Low or High Side ...

Page 14: ...k 1 0 1 W 0603 0603L RC0603FR 0710KL Yageo America R8 0 1 00 kΩ RES 1 00 k 0 1 0 1 W 0603 0603L CRT0603 BY 1001EAS Bourns Inc R81 R82 R83 R84 R85 0 0 002 Ω RES 0 002 1 1 W 1206 1206 CSNL1206FT2L00 Stackpole Electronics Inc TP1 TP11 TP12 TP13 TP14 TP15 TP2 TP8 TP21 TP22 TP23 TP24 TP25 TP81 TP82 TP83 TP84 TP85 TP7 0 Test Point Compact White TH Keystone5007 5007 Keystone U2 U21 U22 U23 U24 U25 0 1 MH...

Page 15: ...ction 2 Deleted WCSP option from document 2 Changed 0 3 V to 42 V common mode voltage to 0 1 V to 40 V common mode voltage in Measurements section 4 Deleted last sentence from R8x pad discussion in Measurements section 4 Changed C2x C3x C4x and C9x are not populated to C2x C3x C4x and C9x are not populated except for C9x in R5x R6x R7x R3x C2x C3x C4x C9x section 5 Added at high common mode voltag...

Page 16: ...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...

Page 17: ...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...

Page 18: ...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 ...

Page 19: ...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...

Page 20: ...se 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...

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