SPI programmable 16-bit, 36V, 1A Power Supply with Integrated Current Shunt

(ACTIVE) TIPD138

Description & Features

Technical Documents

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Key Document

Description

This Verified Design provides the theory, component selection, simulation, PCB design, and measurement details for a SPI controlled 36V power supply capable of sourcing 1A.  It also includes an intergrated high-side current shunt accurate to 1% across multiple decades of current load.  The output of the design is sourced by the DAC8871 which supports both unipolar and bipolar output ranges.  As a result, this circuit can be easily modified to meet the needs of many different applications. See more TI Precision Designs

Features
  • 36V @ 1A Load SPI Controlled Output
  • 0.08% Measured FSR Gain Error
  • 8.2mV Measured Offset Error
  • Current Monitor Output
  • Variable Decades of Current Measurement

 

 

This Verified Design Includes:

  • Theory
  • Component Selection
  • TINA-TI Simulation
  • Schematics and PCB Layout
  • Verification and Measured Performance
  • Modification Options

 

 


View the Important Notice for TI Designs covering authorized use, intellectual property matters and disclaimers.


  




TI Devices (7)

Order samples, get tools and find more information on the TI products in this reference design.

Part Number Name Product Family Sample & Buy Design Kits & Evaluation Modules
DAC8871  16-Bit Single Channel, Serial Interface, +/-18V (High Voltage Bipolar) Output DAC   Digital-to-Analog Converters (DACs)  Sample & Buy View Design Kits & Evaluation Modules
INA146  High-Voltage, Programmable Gain Difference Amplifier  Amplifiers  Sample & Buy View Design Kits & Evaluation Modules
LF411  Precision JFET-input Operational Amplifier  Operational Amplifiers (Op Amps)  Sample & Buy View Design Kits & Evaluation Modules
OPA140  11MHz, Single Supply, Low Noise, Precision, Rail-to-Rail Output, JFET Amplifier  Operational Amplifiers (Op Amps)  Sample & Buy View Design Kits & Evaluation Modules
OPA2277  10µV, 0.1µV/˚C, High-Precision, Low-Power Operational Amplifier  Operational Amplifiers (Op Amps)  Sample & Buy View Design Kits & Evaluation Modules
OPA549  High-Voltage, High-Current Op Amp, Excellent Output Swing  Operational Amplifiers (Op Amps)  Sample & Buy View Design Kits & Evaluation Modules
REF102  2.5ppm/°C Drift, 10-V Precision Voltage Reference  Voltage Reference  Sample & Buy Not Available

Technical Documents

View the Important Notice for TI Designs covering authorized use, intellectual property matters and disclaimers.

User guides (1)
Title Abstract Type Size (KB) Date Views TI Recommends
PDF 1583 16 Jul 2014 335
Design files (3)
Title Abstract Type Size (KB) Date Views
PDF 196 11 Sep 2013 54
PDF 199 11 Sep 2013 139
ZIP 2729 10 Sep 2013 53
Related Tools & Software

Software (2)




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