Servo drive power stage module

Products and reference designs

Servo drive power stage module

Block diagram

Overview

Our integrated circuits and reference designs help you create a compact, efficient and fully-protected servo drive power stage module. Our analog and embedded processing products enable improving motor control performance and exceed isolation and EMC requirements per IEC standards.

Design requirements

Servo drive power stage modules often require:

  • Non-isolated and isolated gate drivers with high common mode transient immunity (CMTI) and built-in protection.
  • Precise current and voltage sense for accurate position and torque control.
  • Robust overcurrent protection against short circuit and shoot through events.
  • Efficient non-isolated and isolated power supplies with tight regulation.

Explore applications similar in function and design

Block diagram

Find products and reference designs for your system.

DC-fed servo power stage

24V & other rails 24V & other rails DC LINK (24 – 100Vdc) DC LINK (24 – 100Vdc) Safe torque off input Safe torque off input Brake resistor Brake resistor PWM & FLT PWM & FLT Multiple rails Multiple rails Connection to control module Connection to control module Temp sense Temp sense Gate driver supply Gate driver supply Brake control Brake control Brake control Brake control DC LINK DC LINK AC motor AC motor 24V Aux 24V Aux Holding brake Holding brake Gate driver supply Gate driver supply Regen brake power stage Regen brake power stage Non- isolated gate driver Non- isolated gate driver Diagnostics / monitoring Diagnostics / monitoring High side smart switch High side smart switch Isolation Isolation DC/DC DC/DC 3-phase power stage 3-phase power stage FET’s FET’s Non isolated integrated drivers / half bridge drivers Non isolated integrated drivers / half bridge drivers Logic gates Logic gates Temp sensor Temp sensor Isolated DC/DC main Isolated DC/DC main PWM controller PWM controller REF REF FET FET DC link current & voltage sense DC link current & voltage sense Ref Ref Amp Amp Comp Comp Temp monitoring Temp monitoring Amp Amp Comp Comp Input power protection Input power protection EFuse EFuse Oring controller Oring controller FET FET Non-isolated DC/DC power supply Non-isolatedDC/DC power supply DC/DC DC/DC Supervisor sequencer Supervisor sequencer PMIC PMIC LDO LDO Signal conditioning Signal conditioning Ref Ref Amp Amp Comp Comp ADC ADC Digital processing Digital processing MCU ASIC FPGA MCUASICFPGA Holding brake power stage Holding brake power stage High/low side switch High/low side switch Isolation Isolation DC/DC DC/DC FAN power stage FAN power stage Isolation Isolation Switch / LDO Switch / LDO Wired interface Wired interface CMOS CMOS CAN CAN LVDS LVDS RS485 RS485 Isolation Isolation Ethernet Ethernet Clocking Clocking CLK distribution CLK distribution Motor current & voltage sense Motor current & voltage sense Fluxgate / hall Fluxgate / hall Iso delta sigma Iso delta sigma LDO LDO Amp Amp Fan Fan

3-phase power stage

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3-phase power stage converts the DC Link voltage to variable voltage and variable frequency ac output. Its usually built with power devices like MOSFET's. WBG devices are also gaining traction to improve the performance of the inverter. Appropriate selection of gate drivers impacts power stage efficiency, overcurrent protection, safety and EMI.

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Power management (15)
MOSFETs
  • CSD19535KTT100-V, N channel NexFET™ power MOSFET, single D2PAK, 3.4 mOhm
    Data sheet: PDF | HTML
  • CSD19531Q5A100-V, N channel NexFET™ power MOSFET, single SON 5 mm x 6 mm, 6.4 mOhm
    Data sheet: PDF | HTML
  • CSD19538Q3A100-V, N channel NexFET™ power MOSFET, single SON 3 mm x 3 mm, 61 mOhm
    Data sheet: PDF | HTML
  • CSD19537Q3100-V, N channel NexFET™ power MOSFET, single SON 3 mm x 3 mm, 14.5 mOhm
    Data sheet: PDF | HTML
  • CSD19533Q5A100-V, N channel NexFET™ power MOSFET, single SON 5 mm x 6 mm, 9.5 mOhm
    Data sheet: PDF | HTML
  • CSD17318Q230-V, N channel NexFET™ power MOSFET, single SON 2 mm x 2 mm, 16.9 mOhm
    Data sheet: PDF | HTML
Low-side drivers
  • UCC275174-A/4-A single-channel gate driver with 5-V UVLO and 13-ns prop delay in SOT-23 package
    Data sheet: PDF | HTML
  • UCC275312.5-A/5-A single-channel gate driver with 8-V UVLO, 35-V VDD, and split outputs
    Data sheet: PDF | HTML
  • SM741013-A/7-A single channel gate driver with input ground for split supply operation
    Data sheet: PDF | HTML
Half-bridge drivers
  • UCC272892.5-A to 3.5-A, 120-V half bridge gate driver with 8-V UVLO and enable
    Data sheet: PDF | HTML
  • UCC272823-A, 120-V half-bridge gate driver with 5-V UVLO, interlock and enable
    Data sheet: PDF | HTML
Gallium nitride (GaN) power stages
  • LMG3410R070600-V 70mΩ GaN with integrated driver and protection
    Data sheet: PDF | HTML
  • LMG3411R070600-V 70-mΩ GaN with integrated driver and cycle-by-cycle overcurrent protection
    Data sheet: PDF | HTML
  • LMG3411R050600-V 50mΩ GaN with integrated driver and cycle-by-cycle overcurrent protection
    Data sheet: PDF | HTML
  • LMG3411R150600-V 150-mΩ GaN with integrated driver and cycle-by-cycle overcurrent protection
    Data sheet: PDF | HTML
Sensors (2)
Analog temperature sensors
  • TMP2351C analog temperature sensor, 10 mV/C
    Data sheet: PDF | HTML
  • TMP236±2.0°C analog output temperature sensor, with 19.5mV/°C gain
    Data sheet: PDF | HTML
Logic & voltage translation (12)
Noninverting buffers & drivers
  • SN74HCS244Octal buffers and line drivers with tri-state outputs and Schmitt trigger inputs
    Data sheet: PDF | HTML
  • SN74ACT244Eight-channel, 4.5-V to 5.5-V buffers with TTL-compatible CMOS inputs and three-state outputs
    Data sheet: PDF | HTML
  • SN74LVC2G172-ch, 1.65-V to 5.5-V buffers with Schmitt-Trigger inputs
    Data sheet: PDF | HTML
  • SN74LV541AT8-ch, 4.5-V to 5.5-V buffers with TTL-compatible CMOS inputs and 3-state outputs
    Data sheet: PDF | HTML
  • SN74LVC1G17Single 1.65-V to 5.5-V buffer with Schmitt-Trigger inputs
    Data sheet: PDF | HTML
  • SN74AHCT1G125Single 4.5-V to 5.5-V buffer with TTL-compatible CMOS inputs and 3-state outputs
    Data sheet: PDF | HTML
Inverting buffers & drivers
  • TIDA-0090948V/10A High Frequency PWM 3-Phase GaN Inverter Reference Design for High-Speed Drives
    Design guide: PDF Schematic: PDF
  • TIDA-010059In-phase current-sense reference design for 230-VAC motor drives using hall-effect current sensors
    Design guide: PDF Schematic: PDF
  • TIDA-01093648V/16A small form factor three-phase GaN inverter reference design for integrated motor drives
    Design guide: PDF | HTML Schematic: PDF
  • TIDA-01095648V, 4kW small form-factor three-phase inverter reference design for integrated motor drives
    Design guide: PDF | HTML Schematic: PDF
  • TIDA-0162948V/500W Three-phase Inverter with Smart Gate Driver Reference Design for Servo Drives
    Design guide: PDF Schematic: PDF

Technical documentation

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Type Title Date
Technical article Anything but discrete: How to simplify 48-V to 60-V DC-fed three-phase inverter de PDF | HTML 31 Jul 2023
Technical article 3 tips when designing a power stage for servo and AC drives PDF | HTML 30 Jun 2023
Application note UCC21520, a Universal Isolated Gate Driver with Fast Dynamic Response (Rev. A) PDF | HTML 29 Jun 2018
E-book C2000™ MCU DesignDRIVE Solutions for Industrial Motor Drives 28 Oct 2020
E-book Ein Techniker-Leitfaden für Industrieroboter-Designs 28 Oct 2020
Functional safety information Isolation in AC Motor Drives: Understanding the IEC 61800-5-1 Safety Standard (Rev. A) 28 Jul 2022
White paper Silicon carbide gate drivers -- a disruptive technology in power electronics (Rev. A) 28 Feb 2019
White paper High Voltage Isolation Quality and Reliability for AMC130x 27 Jun 2016
White paper Design considerations of GaN devices for improving power converter efficiency 20 Nov 2017
Technical article Getting the most out of your power stage at the full temperature range – part 2 PDF | HTML 18 Jul 2023
Application note Performance of the Analog PWM Channel in Smart Gate Drivers 17 Jan 2020
E-book E-book: An engineer’s guide to industrial robot designs 16 Nov 2020
Application note Digital Isolator Design Guide (Rev. G) PDF | HTML 13 Sep 2023
White paper Piccolo™ C2000™ MCUs enable the next generation of low-cost, dual-axis servo dri (Rev. A) 13 Jul 2020
Application note Is Your IGBT Gate-Driver Power Supply Optimized 12 Mar 2015
White paper High-voltage reinforced isolation: Definitions and test methodologies 12 Aug 2019
Technical article Interlocking gate drivers for improving the robustness of three-phase inverters PDF | HTML 11 Sep 2023
Application note High Voltage Half Bridge Design Guide for LMG3410 Smart GaN FET (Rev. A) 11 May 2022
Application note The RS-485 Design Guide (Rev. D) PDF | HTML 10 May 2022
Application brief Voltage Reference Solutions in Motor Control Drives 10 May 2022
White paper Advancing Power Supply Solutions Through the Promise of GaN 10 Feb 2017
Technical article Getting the most out of your power stage at the full temperature range – part 1 PDF | HTML 08 Aug 2023
Analog Design Journal 전기 모터 드라이브의 오류 감지를 위해 절연 콤퍼레이터 사용 PDF | HTML 07 Aug 2024
Analog Design Journal Verwendung isolierter Komparatoren zur Fehlererkennung in Elektromotorantrieben PDF | HTML 07 Aug 2024
Technical article How to keep your motor running safely PDF | HTML 07 Aug 2023
Analog Design Journal Using isolated comparators for fault detection in electric motor drives PDF | HTML 06 Sep 2022
Analog Design Journal Using isolated comparators for fault detection in electric motor drives PDF | HTML 06 Sep 2022
Application note Analysis of Power Supply Topologies for IGBT Gate Drivers in Industrial Drives 06 Jul 2015
White paper Optimizing GaN performance with an integrated driver 05 Apr 2016
Analog Design Journal Common-mode transient immunity for isolated gate drivers 02 Nov 2015
Analog Design Journal How to use isolation to improve ESD, EFT and surge immunity in industrial system 02 Aug 2017
Application note Sensorless Field Oriented Ctrl of 3-Phase Perm. Magnet Synch. Motors-HVDMC Kit 01 Jul 2013

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