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Single & multiaxis servo drives

Servo drive control module

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Block diagram

Servo drive control module

Block diagram

Overview

Our integrated circuits and reference designs help you create servo drive control modules for precise, smooth and efficient control of servo motors. Real-time control, powerful processing, precise analog signal chain and robust transceivers help run fast-control algorithms and encoder interfaces.

Design requirements

Servo drive control modules often require:

  • High-bandwidth current loop for smooth torque and speed/position control.
  • Low-latency, low-bit-error, EMC-immune interface to encoder, fieldbus/Ethernet.
  • High-performance signal chain to process sin/cos signals from encoder/resolver.
  • High-efficiency, sequenced and supervised voltage rails for reliable operation.
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Block diagram

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Servo drive control module

Digital I/O Digital I/O Digital I/O protection Digital I/O protection Protection Protection Analog I/O Analog I/O Analog IO protection Analog IO protection Protection Protection Board-to-board connection Board-to-board connection Board-to-board protection Board-to-board protection Protection Protection Industrial Ethernet and/or proprietary interface Industrial Ethernetand/or proprietary interface Ethernet protection Ethernet protection Protection Protection Fieldbus protection Fieldbus protection Protection Protection Fieldbus and/or proprietary interface Fieldbus and/or proprietary interface Service IF protection Service IF protection Protection Protection Service configuration interface Service configuration interface 24V AUX 24V AUX 24V 24V Encoder IF protection Encoder IF protection Protection Protection Absolute or incremental encoder interface Absolute or incremental encoder interface SIN/COS AFE protection SIN/COS AFE protection Protection Protection Resolver or SIN/COS encoder interface Resolver or SIN/COS encoder interface Encoder power supply Encoder power supply VDD VDD Encoder interface Encoder interface Input power protection Input power protection Efuse Efuse Oring controller Oring controller Non-isolated DC/DC power supply Non-isolated DC/DC power supply Supervisor sequencer Supervisor sequencer PMIC PMIC LDO LDO DC/DC DC/DC Fieldbus interface Fieldbus interface RS485 RS485 CAN CAN Digital isolator Digital isolator Interface translator Interface translator Service interface Service interface USB USB RS485 RS485 RS232 RS232 Digital Isolator Digital Isolator Analog I/O interface Analog I/O interface Reference Reference MUX MUX Amp Amp Amp Amp Digital isolator Digital isolator ADC ADC DAC DAC Self-dagnostics/monitoring Self-dagnostics/monitoring Temp Temp Clocking Clocking CLK distribution CLK distribution Encoder interface Encoder interface MUX MUX RS485 RS485 RS422 RS422 Comparator Comparator Level translator Level translator SIN/COS AFE SIN/COS AFE REF REF Comparator Comparator Amp Amp ADC ADC Resolver excitation Resolver excitation Amp Amp DAC DAC Isolated DC/DC for interfaces Isolated DC/DC for interfaces PWM controller PWM controller FET FET Industrial Ethernet interface Industrial Ethernet interface Ethernet PHYs Ethernet PHYs MPU MPU Digital I/O interface Digital I/O interface Input serializer Input serializer Digital isolator Digital isolator Load switch Load switch Comparator Comparator Schmitt trigger Schmitt trigger Encoder power protection Encoder power protection Load switch Load switch Efuse Efuse Digital processing Digital processing Logic Logic MCU MPU MCUMPU Board-to-board interface Board-to-board interface Transceiver Transceiver Interface translator Interface translator Reference Reference Buffer Buffer Amp Amp Memory Memory Bus termination Bus termination Flash Flash DDR DDR

Digital processing

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Digital processing performs the signal processing and overall control algorithm. It can also support Ethernet and fieldbus communication protocols. Based on the complexity of the drive, digital processing may be based on a single MCU or two or more MCUs.

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Microcontrollers (MCUs) & processors (20)
Arm Cortex-M0+ MCUs
  • MSPM0C1103—24MHz Arm® Cortex®-M0+ MCU with 8KB flash, 1KB SRAM, 12-bit ADC
    Data sheet: PDF | HTML
  • MSPM0C1104—24MHz Arm® Cortex®-M0+ MCU with 16KB flash, 1KB SRAM, 12-bit ADC
    Data sheet: PDF | HTML
  • MSPM0L1227—32MHz Arm® Cortex®-M0+ MCU with 128KB dual-bank flash, 32KB SRAM, 12-bit ADC, COMP, VBAT, PSA-L1<
    Data sheet: PDF | HTML
Arm Cortex-R MCUs
  • AM263P4—Quad-core Arm® Cortex®-R5F MCU up to 400 MHz with real-time control and expandable memory
    Data sheet: PDF | HTML
  • AM2432—Dual-core Arm® Cortex®-R5F-based MCU with industrial communications and security up to 800 MHz
    Data sheet: PDF | HTML
  • AM2434—Quad-core Arm® Cortex®-R5F-based MCU with industrial communications and security up to 800 MHz
    Data sheet: PDF | HTML
  • RM46L852—16/32 Bit RISC Flash MCU, Cortex R4F, EMAC, USB
    Data sheet: PDF | HTML
  • RM41L232—16/32 Bit RISC Flash MCU, Arm Cortex-R4F
    Data sheet: PDF | HTML
C2000 real-time microcontrollers
  • TMS320F28P650SH—C2000 32-bit MCU, 400 MIPS, 1xC28x + 1xCLA CPU, FPU64, 768kB flash, 16-b ADC
    Data sheet: PDF | HTML
  • TMS320F2800157—C2000™ 32-bit MCU 120-MHz 256-KB flash with HRPWM, CAN-FD
    Data sheet: PDF | HTML
  • TMS320F28375D—C2000™ 32-bit MCU with 800 MIPS, 2xCPU, 2xCLA, FPU, TMU, 1024 KB flash, EMIF, 12b ADC
    Data sheet: PDF | HTML
  • TMS320F28P650DH—C2000 32-bit MCU, 600 MIPS, 2xC28x + 1xCLA CPU, FPU64, 768kB flash, 16-b ADC
    Data sheet: PDF | HTML
  • TMS320F28P550SG—C2000™ 32-bit MCU with 150MHz 512KB flash C28x + CLA, five ADCs, CLB, AES and NPU
    Data sheet: PDF | HTML
  • TMS320F280037C—C2000™ 32-bit MCU 120-MHz 256-KB flash, FPU, TMU with CLA, CLB, AES and CAN-FD
    Data sheet: PDF | HTML
Arm-based processors
  • AM6441—Single-core 64-bit Arm® Cortex®-A53, quad-core Cortex-R5F, PCIe, USB 3.0 and security
    Data sheet: PDF | HTML
  • AM6442—Dual-core 64-bit Arm® Cortex®-A53, quad-core Cortex-R5F, PCIe, USB 3.0 and security
    Data sheet: PDF | HTML
  • AM5726—Sitara processor: dual Arm Cortex-A15 & dual DSP
    Data sheet: PDF | HTML
  • AM6412—Dual-core 64-bit Arm® Cortex®-A53, single-core Cortex-R5F, PCIe, USB 3.0 and security
    Data sheet: PDF | HTML
  • AM3356—Sitara processor: Arm Cortex-A8, PRU-ICSS, CAN
    Data sheet: PDF | HTML
  • AM3358—Sitara processor: Arm Cortex-A8, 3D graphics, PRU-ICSS, CAN
    Data sheet: PDF | HTML
Logic & voltage translation (38)
Configurable gates
OR gates
D-type flip-flops
AND gates
  • SN74LVC1G08—1-ch, 2-input 1.65-V to 5.5-V 32 mA drive strength AND gate
    Data sheet: PDF | HTML
  • SN74LVC2G08—2-ch, 2-input 1.65-V to 5.5-V 32 mA drive strength AND gate
    Data sheet: PDF | HTML
  • SN74LVC08A—Four-channel two-input 1.65V to 3.6V AND gate
    Data sheet: PDF | HTML
  • SN74LVC1G11—1-ch, 3-input 1.65-V to 5.5-V 32 mA drive strength AND gate
    Data sheet: PDF | HTML
  • SN74AC11—3-ch, 3-input, 2-V to 6-V high-speed (7 ns) 24-mA drive strength AND gate
    Data sheet: PDF | HTML
  • SN74AHC08—4-ch, 2-input 2-V to 5.5-V high-speed (9 ns) AND gate
    Data sheet: PDF | HTML
NAND gates
Shift registers
  • SN74HCS595—8-bit shift register with Schmitt-trigger inputs and 3-state output registers
    Data sheet: PDF | HTML
  • SN74HC165—8-Bit Parallel-Load Shift Registers
    Data sheet: PDF | HTML
  • SN74HC595—8-bit shift registers with 3-state output registers
    Data sheet: PDF | HTML
  • SN74AHCT595—Eight-bit shift registers with tri-state output registers and TTL-compatible CMOS inputs
    Data sheet: PDF | HTML
  • SN74LV595A—Eight-bit shift registers with 3-state output registers
    Data sheet: PDF | HTML
  • SN74LV165A—Parallel-load eight-bit shift registers
    Data sheet: PDF | HTML
XOR (exclusive OR) gates
  • SN74AHC1G86—Single 2-input, 2-V to 5.5-V XOR (exclusive OR) gate
    Data sheet: PDF | HTML
  • SN74LVC86A—4-channel 2-input 1.1V to 3.6V XOR (exclusive OR) gates
    Data sheet: PDF | HTML
  • SN74LV86A—4-ch, 2-input, 2-V to 5.5-V XOR (exclusive OR) gates
    Data sheet: PDF | HTML
  • SN74LS86A—4-ch, 2-input, 4.75-V to 5.25-V bipolar XOR (exclusive OR) gates
    Data sheet: PDF | HTML
  • SN74LVC2G86—2-ch, 2-input, 1.65-V to 5.5-V XOR (exclusive OR) gates
    Data sheet: PDF | HTML
NOR gates
  • TIDA-00171—Isolated Current Shunt and Voltage Measurement Reference Design for Motor Drives
    Schematic: PDF
  • TIDA-00204—EMI/EMC Compliant Industrial Temp Dual Port Gigabit Ethernet PHY Reference Design
    Schematic: PDF
  • TIDA-010049—TUV-assessed digital input reference design for IEC 61508 (SIL-2)
    Design guide: PDF Schematic: PDF
  • TIDA-010948—6-axis motor control reference design with position feedback and industrial communication protocols
    Design guide: PDF Schematic: PDF
  • TIDEP0003—Ethernet/IP Communications Dev Platform
    Schematic: PDF
  • TIDEP0010—Sercos 3 on AM335x
    Schematic: PDF
  • TIDEP0029—Certified Profinet IRT V2.3 Device with 1 GHz ARM Application Processor
    Design guide: PDF Schematic: PDF
  • TIDEP0039—Sercos III Slave For AM437x Communication Development Platform Reference Design
    Design guide: PDF Schematic: PDF
  • TIDEP0079—EtherCAT® Reference Design on Sitara AM57x Gb Ethernet and PRU-ICSS with Time Triggered Send
    Design guide: PDF Schematic: PDF
  • TIDM-02007—Dual-axis motor drive using fast current loop (FCL) and SFRA on a single MCU reference design
    Design guide: PDF Schematic: PDF
  • TIDM-SERVODRIVE—Industrial Servo Drive and AC Inverter Drive Reference Design
    Design guide: PDF Schematic: PDF Schematic: PDF

Technical documentation

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Type Title Date
White paper Time Sensitive Networking for Industrial Automation (Rev. C) 31 Jul 2023
Application note Better signal integrity with isolated Delta-Sigma modulators in motor drives 30 Oct 2019
Technical article What is “real-time control” and why do you need it? PDF | HTML 28 Sep 2023
E-book C2000™ MCU DesignDRIVE Solutions for Industrial Motor Drives 28 Oct 2020
E-book Ein Techniker-Leitfaden für Industrieroboter-Designs 28 Oct 2020
White paper EtherNet/IP on TI's Sitara AM335x Processors (Rev. D) 28 Jul 2020
White paper EtherCAT® on Sitara™ Processors (Rev. I) 28 Jul 2020
White paper 高精密度馬達驅動控制 推動產業升級 26 Feb 2019
Technical article Industrial drive control architectures: Part 3 PDF | HTML 24 Aug 2023
Technical article Functional safety for industrial motor drives PDF | HTML 23 Aug 2023
Application note DP83822 Energy Efficient Ethernet IEEE 802.3az 22 Aug 2016
Application note Signal Integrity vs. Transmission Rate and Cable Length for RS-485 Transceivers 21 Sep 2017
White paper Simplify the integration of position sensors for industrial drive control system (Rev. A) 21 Nov 2019
Application note Sensorless Field Oriented Control of 3-Phase ... (DRV830x-HC-C2-KIT) 20 May 2015
Application note Power Multiplexing Using Load Switches and eFuses (Rev. A) 20 Jun 2017
White paper PROFINET on TI’s Sitara™ processors (Rev. D) 20 Apr 2020
White paper High precision in motor drive control enables industrial advances 18 Nov 2020
Application brief How to Improve Speed and Reliability of Isolated Digital Inputs in Motor Drives 18 Dec 2017
Application note Sensorless-FOC With Flux-Weakening and MTPA for IPMSM Motor Drives 17 Apr 2018
E-book E-book: An engineer’s guide to industrial robot designs 16 Nov 2020
Technical article Achieve unprecedented current-loop performance from an off-the-shelf MCU PDF | HTML 15 Sep 2023
Technical article EtherCAT and C2000™ MCUs - real-time communications meets real-time control PDF | HTML 15 Aug 2023
Technical article Industrial drive control architectures: Part 1 PDF | HTML 14 Sep 2023
White paper Piccolo™ C2000™ MCUs enable the next generation of low-cost, dual-axis servo dri (Rev. A) 13 Jul 2020
White paper High-voltage reinforced isolation: Definitions and test methodologies 12 Aug 2019
Application note Sensored Field Oriented Control of 3-Phase Perm Magnet Sync Motors Using F2837x (Rev. A) 11 May 2022
Application note Industrial Communication Protocols Supported on Sitara™ Processors (Rev. E) PDF | HTML 10 May 2024
White paper Industry 4.0 서보 드라이브에 Sitara™ 프로세서 및 마이크로컨트롤러 활용 (Rev. C) PDF | HTML 10 May 2022
Application note Ethernet PHY Configuration Using MDIO for Industrial Applications (Rev. A) 10 May 2022
Technical article Top design challenges in precise motor control for industrial robotics PDF | HTML 10 Aug 2023
Application note How to Configure DP8386x for Ethernet Compliance Testing (Rev. D) PDF | HTML 08 Apr 2025
White paper Utilizing Sitara Processors and Microcontrollers for Industry 4.0 Servo Drives (Rev. C) 06 Oct 2021
White paper Utilizing Sitara Processors and Microcontrollers for Industry 4.0 Servo Drives (Rev. C) 06 Oct 2021
Application note Performance Analysis of Fast Current Loop (FCL) in Servo 06 Mar 2018
White paper 運用適合工業 4.0 Sitara™ 伺服驅動器的處理器與微控制器 (Rev. C) PDF | HTML 02 Jun 2022
Technical article Know your electromagnetic compatibility requirements for designing industrial driv PDF | HTML 02 Aug 2023
More literature Decentralized servo architecture webinar 01 Mar 2021
More literature Decentralized servo architecture webinar 01 Mar 2021
Technical article Increase the reliability of industrial drives with an EMC-compliant resolver senso PDF | HTML 01 Aug 2023

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