10.8-V/15-W, >90% Efficiency, 2.4-cm2, Power Stage Reference Design for Brushed DC Servo Drive

(ACTIVE) TIDA-01588

Description & Features

Technical Documents

Support & Training

Order Now


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

Key Document

Description

This 15W, 12-mm x 20-mm, power stage reference design drives and controls the position of the brushed DC (BDC) motor operating from a three to six cell Li-ion battery. This highly efficient solution is optimized with a very small form factor that easily fits into the motor, and supports precise motor position control. The design is also capable of driving the motor at high speed without any position feedback. The reference design demonstrates fast and accurate current sensing for quality torque control, and the onboard MCU provides UART connectivity, which enables controllability with any external controller.

Features
  • Brushed DC servo drive operates at voltage ranging from 6.5-V to 25.2-V (3 to 6 cell Li-ion battery)
  • Supports 1.4 -ARMS continuous, 2.5-A peak motor winding current, with over current and shoot-through protection 
  • Precise motor position control with encoder or potentiometric position feedback 
  • Very small PCB form factor of 12mm x 20mm, with >90 % power stage efficiency
  • Current sensing with < 1% calibrated accuracy error, enable accurate torque control

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


  



Schematic/Block Diagram

Quickly understand overall system functionality.

Download Schematic

Design Guide

Get results faster with test and simulation data that's been verified.

Download Design Guide

Design Files

Download ready-to-use system files to speed your design process. Get Viewer.

Download Design Files


Bill of Materials (BOM)

Find the complete list of components in this reference design.

Download BOM

TI Devices (6)

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
DRV8870  3.6A Brushed DC Motor Driver (PWM Ctrl)  Motor drivers  Sample & Buy View Design Kits & Evaluation Modules
ESD122  2-Channel ESD Protection Diode for USB Type-C and HDMI 2.0  Circuit protection  Sample & Buy View Design Kits & Evaluation Modules
MSP430FR2433  16 MHz Ultra-Low-Power Microcontroller with 16 KB FRAM, 4 KB RAM, 10-bit ADC, 19 IO, 4 16-bit Timers  MSP430 ultra-low-power MCUs  Sample & Buy View Design Kits & Evaluation Modules
TLV9061  World's Smallest Amp 10MHz, RRIO, 1.8V-5.5V op-amp delivers high performance for challenging systems  Operational amplifiers (op amps)  Sample & Buy View Design Kits & Evaluation Modules
TPS709  150mA 30V Ultra-Low-Iq Wide-Input Low-Dropout (LDO) Regulator With Reverse Current Protection  Power management  Sample & Buy View Design Kits & Evaluation Modules
TVS3300  33V Flat-Clamp Surge Protection Device  Circuit protection  Sample & Buy View Design Kits & Evaluation Modules

CAD/CAE symbols

Part # Package | Pins CAD File (.bxl) STEP Model (.stp)
DRV8870 Download Download
MSP430FR2433 Download Download
Download -
TLV9061 Download
Download Download
TPS709 Download
Download
TVS3300 Download

Texas Instruments and Accelerated Designs, Inc. have collaborated together to provide TI customers with schematic symbols and PCB layout footprints for TI products.

Step 1: Download and install the free download.

Step 2: Download the Symbol and Footprint from the CAD.bxl file table.


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 4756 13 Dec 2017 27
Design files (6)
Title Abstract Type Size (KB) Date Views
ZIP 501 13 Dec 2017 6
ZIP 1032 13 Dec 2017 11
PDF 330 13 Dec 2017 9
PDF 103 13 Dec 2017 6
PDF 289 13 Dec 2017 5
PDF 442 13 Dec 2017 37
Related Tools & Software

Software (1)



Support & Training

Try our support forums.
Search expert answers for this part Ask a new question

Content is provided 'AS IS' by the respective TI and Community contributors and does not constitute TI specifications.
See terms of use.

Blogs