75V/10A Protected Full-Bridge Power Stage Reference Design for Brushed DC Drives

(ACTIVE) TIDA-00365

Description & Features

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Key Document

Description

Low voltage brushed DC drives are used in many applications. TI offers a rich family of brushed DC motor driver solutions with flexible control interface options for one or more brushed DC motors up to 60V.  For applications which require higher torque and power, often voltages above 60VDC are used. The TIDA-00365 protected full-bridge operates at nominal 75VDC input and 10A output current and features bipolar high-side current sensing leveraging a 100V full-bridge gate driver SM72295 with integrated amplifiers and four 100V NexFET power MOSFETs with ultra-low gate charge and small SON5x6 package with low thermal resistance. The power stage is protected against over-temperature, over-current and short-circuit between the motor terminals and motor terminals to ground. Onboard power supplies provide a 12V and a 3.3V rail for the gate driver and signal chain. The host processor interface is 3.3V I/O to connect a host MCU like C2000 Piccolo MCU for brushed DC motor current control.

Features
  • Protected full-bridge power stage with input voltage up to 100VDC (75VDC nominal) and 10A output current
  • BOM reduction through SM72295 100-V full-bridge gate driver with integrated amplifiers used for high-side bipolar phase current sensing
  • Calibrated current sense accuracy ±1% (over full range ±10A and ±0.2% (within ±1A range)
  • Full-bridge optimized for low EMI with 25ns rise/fall time on switch-node voltages with no over- and under-shoot
  • Full-bridge protected against over-temperature, under-voltage, over- and short-circuit current between motor terminals and motor terminals to GND
  • 95% efficiency at 16 kHz PWM. No heatsink required at 25C ambient and nominal load thanks to TI NexFET power MOSFET
  • Host processor interface with dual complementary PWM inputs (3.3V CMOS) and analog outputs (0-3.3V) for bipolar high-side current sense and motor terminal voltage

View the Important Notice for TI Designs covering authorized use, intellectual property matters and disclaimers.


  




TI Devices (8)

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
ATL431  2.5V Low Iq Adjustable Precision Shunt Regulator  Voltage Reference  Sample & Buy View Design Kits & Evaluation Modules
CSD19534Q5A  100V, N-Channel NexFET Power MOSFET  Power MOSFET  Sample & Buy Not Available
LM2901V  Quad Differential Comparator, Enhanced Voltage  Amplifiers  Sample & Buy Not Available
LM317L  3/8 Pin 100mA Adjustable Positive Regulator  Linear Regulator (LDO)  Sample & Buy Not Available
LM5018  7.5-100V Wide Vin, 300mA Constant On-Time Synchronous Buck Regulator  Step-Down (Buck)  Sample & Buy View Design Kits & Evaluation Modules
LMT89  2.4V-Capable, 10 uA Analog Output Temperature Sensor  Temperature Sensors  Sample & Buy View Design Kits & Evaluation Modules
SM72295  3A Full Bridge Gate Driver with integrated Current Sense Amplifier SM72295  MOSFET and IGBT Gate Drivers  Sample & Buy View Design Kits & Evaluation Modules
SN74LVC1G175  Single D-Type Flip-Flop with Asynchronous Clear  Logic  Sample & Buy Not Available

Technical Documents

View the Important Notice for TI Designs covering authorized use, intellectual property matters and disclaimers.

Application notes (1)
Title Abstract Type Size (KB) Date Views
PDF 599 16 Jun 2009 1,290
User guides (1)
Title Abstract Type Size (KB) Date Views TI Recommends
PDF 1513 16 Mar 2017 943
Design files (6)
Title Abstract Type Size (KB) Date Views
ZIP 1257 16 Aug 2016 163
ZIP 1202 16 Aug 2016 55
PDF 2626 16 Aug 2016 47
PDF 480 16 Aug 2016 24
PDF 79 16 Aug 2016 58
PDF 754 16 Aug 2016 302
Related Tools & Software

Reference Designs (2)

Design Kits & Evaluation Modules (1)

Name Part Number Tool Type
InstaSPIN-MOTION (and InstaSPIN-FOC) enabled C2000 Piccolo LaunchPad  LAUNCHXL-F28069M  Evaluation Modules & Boards 


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