Smart Holding Brake Controller Reference Design with Current Regulation for Servo Drives & Robotics


Design files


This reference design implements safe brake control functionality in servo drives as per IEC EN 61800-5-2 by providing two channel output signals to control an external holding brake. The holding brake will be latched when the power supply is cut off and released when voltage is applied to the coil. This is accomplished by enabling/disabling the smart electronic load switches that supply power to the coil. This reference design also includes diagnostic features for detecting various faults, ensuring safe operation. TIDA-01600 uses the C2000TM LaunchpadTM development kit to generate the brake control signals and to perform the diagnostics functionality.

  • Compact, smart, holding-brake controller solution
  • Can control 24V rated holding brake with current up to 2A
  • Dual-switch control provides redundancy to open brake-coil circuit
  • Galvanic isolation up to 2500-VRMS between holding-brake circuit and microcontroller
  • Hardware-based, pulse width modulation (PWM), current-control loops help to maintain constant hold current, irrespective of variation at input voltage
  • Protection against overvoltage, undervoltage, reverse polarity, and overcurrent
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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.

TIDUE38.PDF (791 K)

Reference design overview and verified performance test data


Detailed schematic diagram for design layout and components


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


Detailed overview of design layout for component placement

TIDM028.ZIP (438 K)

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

TIDRWH0.ZIP (2840 K)

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


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


PCB layer plot file used for generating PCB design layout


Includes TI products in the design and potential alternatives.

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Technical documentation

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Type Title Date
* Design guide Smart Holding-Brake Control and Diagnostics Reference Design for Servo Drives May 24, 2018

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