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

(ACTIVE) TIDA-01588

Description & Features

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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.


  




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)  Brushed DC (BDC) 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  Tiny but mighty: 10-MHz, RRIO, 1.8V to 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  Linear Regulator (LDO)  Sample & Buy View Design Kits & Evaluation Modules
TVS3300  33V Precision Surge Protection Clamp  Circuit Protection  Sample & Buy View Design Kits & Evaluation Modules

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 103
Design files (6)
Title Abstract Type Size (KB) Date Views
ZIP 501 13 Dec 2017 49
ZIP 1032 13 Dec 2017 80
PDF 330 13 Dec 2017 45
PDF 103 13 Dec 2017 50
PDF 289 13 Dec 2017 62
PDF 442 13 Dec 2017 176
Related Tools & Software

Software (1)




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