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Texas Instruments XTR300EVM User Manual Download Page 10

Input Signal

Vin

Vref

DMM

(DC_Amp)

Basic EVM Configuration

www.ti.com

Figure 8. XTR300 Bidirectional Current Output Configuration Circuit Drawing

Figure 9. XTR300EVM Bidirectional Current Output Configuration Screenshot

10

XTR300EVM

SBOU034A – February 2006 – Revised February 2013

Submit Documentation Feedback

Copyright © 2006–2013, Texas Instruments Incorporated

Summary of Contents for XTR300EVM

Page 1: ...procedures input output connections an electrical schematic printed circuit board PCB layout and a parts list for the EVM Contents 1 Overview 2 1 1 XTR300EVM Kit Contents 2 1 2 Related Documentation from Texas Instruments 2 2 XTR300EVM Features 3 2 1 External Connections 4 2 2 Jumper Configuration Settings 4 3 Basic EVM Configuration 5 3 1 Voltage Mode Configurations 5 3 2 Current Mode Configurati...

Page 2: ...back regarding load power or impedance For additional protection the maximum output current is internally limited and thermal protection is provided The XTR300EVM highlights and demonstrates various configurations of the XTR300 The EVM allows the user to modify the inputs configuration pins and support circuitry to test and evaluate desired behavior 1 1 XTR300EVM Kit Contents Table 1 details the c...

Page 3: ...pattern is found at the end of the XTR300 datasheet The solder connection includes heat sinking through the exposed thermal die pad of the QFN package Easy access to all pins of the device Easily configured mode select pins to switch between voltage output and current output modes LEDs indicators for the error flags Optional use of a 5 V regulated voltage Output protection and filtering circuitry ...

Page 4: ...Output The output for the XTR300EVM is located at terminal block TB4 The output stage of the XTR300 consists of an IA IAIN and IAIN and a unique op amp DRV that combine to form an analog output that can be digitally configured to provide either current or voltage output to TB4 OUT and OUT are also connected to test points near TB4 2 1 5 Other Test Points M1 and M2 are connected to the M1 and M2 mo...

Page 5: ...re listed in Table 4 Connect your load to TB4 between OUT and OUT Apply 15 V to V and V Apply a 5 V signal to VIN The voltage across TB4 should be 10 V The voltage output is calculated by the transfer function shown in Equation 1 1 The default EVM configurations set RGAIN to 10 kΩ and RSET to 2 5 kΩ Table 4 Single Ended Voltage Output Jumper Settings Jumper Function J1 On J2 On J3 Off J4 Off J5 Of...

Page 6: ... required a shunt can be placed on J7 to apply an onboard reference voltage of 5 V In this configuration the voltage across TB4 is 10 V If you apply a 0 V signal to VIN the voltage across TB4 is approximately 10 V The voltage output is calculated by the transfer function in Equation 2 2 The default EVM configuration sets RGAIN to 10 kΩ RSET to 2 5 kΩ and ROS to 2 5 kΩ Table 5 Bidirectional Voltage...

Page 7: ...4 XTR300 Bidirectional Voltage Output Configuration Circuit Drawing Figure 5 XTR300EVM Bidirectional Voltage Output Configuration Screenshot 7 SBOU034A February 2006 Revised February 2013 XTR300EVM Submit Documentation Feedback Copyright 2006 2013 Texas Instruments Incorporated ...

Page 8: ...IN Measure the current through the load by attaching your digital multimeter DMM between OUT and GND The current though the load is approximately 20 mA The current output is calculated by the transfer function in Equation 3 3 The default EVM value for RSET is 2 5 kΩ Table 6 Single Ended Current Output Jumper Settings Jumper Function J1 On J2 On J3 On J4 Off J5 Off J6 Off J7 Off Figure 6 XTR300 Sin...

Page 9: ...ence voltage of 5 V Measure the current though the load by attaching your DMM between OUT and GND The current though the load is approximately 20 mA Apply a 0 V signal to VIN and measure the current though the load it is approximately 20 mA The output current is calculated by the transfer function in Equation 4 4 The default EVM configuration sets RSET to 2 5 kΩ and ROS to 2 5 kΩ Table 7 Bidirecti...

Page 10: ... XTR300 Bidirectional Current Output Configuration Circuit Drawing Figure 9 XTR300EVM Bidirectional Current Output Configuration Screenshot 10 XTR300EVM SBOU034A February 2006 Revised February 2013 Submit Documentation Feedback Copyright 2006 2013 Texas Instruments Incorporated ...

Page 11: ...t Figure 10 displays the top layer silkscreen and solder for the XTR300EVM Figure 10 XTR300EVM Layout 4 2 Complete Schematic Figure 11 shows the schematic of the XTR300EVM board 11 SBOU034A February 2006 Revised February 2013 XTR300EVM Submit Documentation Feedback Copyright 2006 2013 Texas Instruments Incorporated ...

Page 12: ...Schematic and Bill of Materials www ti com Figure 11 XTR300EVM Schematic 12 XTR300EVM SBOU034A February 2006 Revised February 2013 Submit Documentation Feedback Copyright 2006 2013 Texas Instruments Incorporated ...

Page 13: ...s North America 2 2 49k ohm ROS RSET RES 2 49K OHM 1 10W 1 0603 SMD Panasonic Electronic Components 2 750 ohm R11 R14 RES 750 OHM 1 10W 1 0603 SMD Panasonic Electronic Components 2 2k ohm R15 R16 RES 2 00K OHM 1 10W 1 0603 SMD Panasonic Electronic Components 2 0 ohm R12 R13 RES 0 0 OHM 1 10W 0603 SMD Panasonic Electronic Components 1 15 ohm R17 RES 15 0 OHM 1 10W 1 0603 SMD Panasonic Electronic Co...

Page 14: ...sion Page Changed entire user guide to new version 1 NOTE Page numbers for previous revisions may differ from page numbers in the current version 14 Revision History SBOU034A February 2006 Revised February 2013 Submit Documentation Feedback Copyright 2006 2013 Texas Instruments Incorporated ...

Page 15: ...ency energy and has not been tested for compliance with the limits of computing devices pursuant to part 15 of FCC or ICES 003 rules which are designed to provide reasonable protection against radio frequency interference Operation of the equipment may cause interference with radio communications in which case the user at his own expense will be required to take whatever measures may be required t...

Page 16: ... 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 l...

Page 17: ...you obtained the Technical Regulations Conformity Certification as provided in Radio Law of Japan with respect to this product Also please do not transfer this product unless you give the same notice above to the transferee Please note that if you could not follow the instructions above you will be subject to penalties of Radio Law of Japan Texas Instruments Japan Limited address 24 1 Nishi Shinju...

Page 18: ... property damage personal injury or death If there are questions concerning these ratings please 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 result in unintended and or inaccurate operation and or possible permanent damage to the EVM and or interface electronics Plea...

Page 19: ...esponsible for compliance with all legal regulatory and safety related requirements concerning its products and any use of TI components in its applications notwithstanding any applications related information or support that may be provided by TI Buyer represents and agrees that it has all the necessary expertise to create and implement safeguards which anticipate dangerous consequences of failur...

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