TIDA-01587

10.8-V/30-W, >95% Efficiency, 4.3-cm2, Power Stage Reference Design for Brushless DC Servo Drive

TIDA-01587

Design files

Overview

This 15-W, 16-mm × 27-mm, power stage reference design drives and controls the position of the brushless DC (BLDC) motor operating from a three- to four-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 speeds with position feedback. The reference design is protected for overcurrent and short circuit, and the onboard MCU provides UART connectivity, which enables controllability with any external controller.

Features
  • Brushless DC servo drive operates at voltage ranging from 6-V to 16.8-V (3 to 4 cell Li-ion battery)
  • Support 2.5 -ARMS continuous, 5-A peak motor winding current, with over current and shoot-through protection by VDS monitoring.
  • Closed loop 60° electrical position control with digital hall sensor feedback for a BLDC motor
  • Supports position control with sinusoidal excitation with analog hall feedback
  • Very small PCB form factor of 16mm x 27mm, with >95 % power stage efficiency
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A fully assembled board has been developed for testing and performance validation only, and is not available for sale.

Design files & products

Design files

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

TIDUE42.PDF (1169 K)

Reference design overview and verified performance test data

TIDRVP3.PDF (576 K)

Detailed schematic diagram for design layout and components

TIDRVP4.PDF (293 K)

Complete listing of design components, reference designators, and manufacturers/part numbers

TIDRVP5.PDF (141 K)

Detailed overview of design layout for component placement

TIDRVP7.ZIP (598 K)

Files used for 3D models or 2D drawings of IC components

TIDCEI8.ZIP (180 K)

Design file that contains information on physical board layer of design PCB

TIDRVP6.PDF (544 K)

PCB layer plot file used for generating PCB design layout

Products

Includes TI products in the design and potential alternatives.

BLDC drivers

DRV830440-V max 3-phase smart gate driver with current shunt amplifier

Data sheet: PDF | HTML
Linear & low-dropout (LDO) regulators

TPS709150-mA, 30-V, ultra-low-IQ, low-dropout voltage regulator with reverse current protection and enable

Data sheet: PDF | HTML
MOSFETs

CSD87502Q230-V, N channel NexFET™ power MOSFET, dual SON 2 mm x 2, 42 mOhm, gate ESD protection

Data sheet: PDF | HTML
MSP430 microcontrollers

MSP430FR594916 MHz MCU with 64KB FRAM, 2KB SRAM, AES, 12-bit ADC, comparator, DMA, UART/SPI/I2C, timer

Data sheet: PDF | HTML
TVS diodes

TVS330033V flat-clamp surge protection device

Data sheet: PDF | HTML

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Software

Firmware

TIDCEI9 TIDA-01587_Firmware

Technical documentation

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Type Title Date
* Design guide 10.8V/30W, >95% Efficiency, 4.3cm2, Power Stage Reference Design for BLDC Drive Feb. 23, 2018

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