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Product details

Parameters

Rating Catalog Control method External Control, Trapezoidal Control Architecture Gate Driver Control interface 6xPWM, 3xPWM, 1xPWM Gate drive (A) 1 Vs (Min) (V) 9 Vs ABS (Max) (V) 102 Features Hardware Management I/F, SPI/I2C, Smart Gate Drive Operating temperature range (C) -40 to 125 open-in-new Find other Brushless DC (BLDC) motor drivers

Package | Pins | Size

WQFN (RTV) 32 25 mm² 5 x 5 open-in-new Find other Brushless DC (BLDC) motor drivers

Features

  • 9 to 100-V, Triple half-bridge gate driver
    • Optional integrated buck regulator
    • Optional triple low-side current shunt amplifiers
  • Smart gate drive architecture
    • Adjustable slew rate control for EMI performance
    • VGS handshake and minimum dead-time insertion to prevent shoot-through
    • 50-mA to 1-A peak source current
    • 100-mA to 2-A peak sink current
    • dV/dt mitigation through strong pulldown
  • Integrated gate driver power supplies
    • High-side doubler charge pump For 100% PWM duty cycle control
    • Low-side linear regulator
  • Integrated LM5008A buck regulator
    • 6 to 95-V operating voltage range
    • 2.5 to 75-V, 350-mA output capability
  • Integrated triple current shunt amplifiers
    • Adjustable gain (5, 10, 20, 40 V/V)
    • Bidirectional or unidirectional support
  • 6x, 3x, 1x, and independent PWM modes
    • Supports 120° sensored operation
  • SPI or hardware interface available
  • Low-power sleep mode (20 µA at VVM = 48-V)
  • Integrated protection features
    • VM undervoltage lockout (UVLO)
    • Gate drive supply undervoltage (GDUV)
    • MOSFET VDS overcurrent protection (OCP)
    • MOSFET shoot-through prevention
    • Gate driver fault (GDF)
    • Thermal warning and shutdown (OTW/OTSD)
    • Fault condition indicator (nFAULT)

All trademarks are the property of their respective owners.

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Description

The DRV835x family of devices are highly-integrated gate drivers for three-phase brushless DC (BLDC) motor applications. These applications include field-oriented control (FOC), sinusoidal current control, and trapezoidal current control of BLDC motors. The device variants provide optional integrated current shunt amplifiers to support different motor control schemes and a buck regulator to power the gate driver or external controller.

The DRV835x uses smart gate drive (SGD) architecture to decrease the number of external components that are typically necessary for MOSFET slew rate control and protection circuits. The SGD architecture also optimizes dead time to prevent shoot-through conditions, provides flexibility in decreasing electromagnetic interference (EMI) by MOSFET slew rate control, and protects against gate short circuit conditions through VGS monitors. A strong gate pulldown circuit helps prevent unwanted dV/dt parasitic gate turn on events

Various PWM control modes (6x, 3x, 1x, and independent) are supported for simple interfacing to the external controller. These modes can decrease the number of outputs required of the controller for the motor driver PWM control signals. This family of devices also includes 1x PWM mode for simple sensored trapezoidal control of a BLDC motor by using an internal block commutation table.

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Technical documentation

= Top documentation for this product selected by TI
No results found. Please clear your search and try again. View all 18
Type Title Date
* Datasheet DRV835x 100-V Three-Phase Smart Gate Driver datasheet (Rev. A) Jun. 24, 2019
Application notes Hardware Design Considerations for an Electric Bicycle using BLDC Motor (Rev. A) Jun. 17, 2019
Application notes Best Practices for Board Layout of Motor Drivers (Rev. A) Jan. 22, 2019
Application notes Low Voltage Motor Drive Operation With Smart Gate Drive Dec. 20, 2018
User guides DRV8350x-EVM User’s Guide (Rev. A) Dec. 19, 2018
Application notes Understanding Smart Gate Drive (Rev. C) Nov. 27, 2018
Application notes DRV835x Split Supply Power Topology Sep. 26, 2018
Application notes Architecture for Brushless-DC Gate Drive Systems (Rev. A) Aug. 22, 2018
Application notes Brushless-DC Made Simple – Sensored Motor Control (Rev. A) Aug. 22, 2018
Application notes Field Oriented Control Made Easy for Brushless DC Motors Using Smart Gate Drive (Rev. B) Aug. 22, 2018
Application notes Cut-Off Switch in High-Current Motor-Drive Applications (Rev. A) Aug. 20, 2018
Technical articles Connectivity helps integrate intelligent motor control on a single MCU Jun. 06, 2018
Technical articles Cut the power and complexity of your appliance designs Feb. 06, 2018
Technical articles Six weird ways to design with a brushless-DC driver Aug. 28, 2017
User guides DRV8350x-EVM GUI User’s Guide Jul. 10, 2017
User guides DRV8350x-EVM Sensored Software User's Guide Jul. 10, 2017
User guides DRV8350x-EVM Sensorless Software User's Guide Jul. 10, 2017
Technical articles A basic brushless gate driver design – part 1 Jun. 12, 2017

Design & development

For additional terms or required resources, click any title below to view the detail page where available.

Hardware development

EVALUATION BOARDS Download
document-generic User guide
99
Description

The DRV8350H-EVM is a 15A, 3-phase brushless DC drive stage based on the DRV8350H gate driver and CSD19532Q5B NexFET™ power blocks. 

The module has individual DC bus and phase voltage sense as well as an external, individual low-side current shunt amplifier, making this evaluation module ideal for (...)

Features
  • 9- to 95-V operation
  • 15 A continuous / 20 A peak H-bridge output current
  • Complete evaluation module with hall sensor connection along with programmable MSP430F5529
  • One individual, external low-side current shunt amplifiers
  • Trapezoidal sensored and sensorless BLDC firmware available
  • Hardware interface to (...)
EVALUATION BOARDS Download
document-generic User guide
99
Description

The DRV8350S-EVM is a 15A, 3-phase brushless DC drive stage based on the DRV8350S gate driver and CSD19532Q5B NexFET™ power blocks. 

The module has individual DC bus and phase voltage sense as well as an external, individual low-side current shunt amplifier, making this evaluation module ideal for (...)

Features
  • 12- to 95-V operation
  • 15 A continuous / 20 A peak H-bridge output current
  • Complete evaluation module with hall sensor connection along with programmable MSP430F5529
  • One individual, external low-side current shunt amplifiers
  • Trapezoidal sensored and sensorless BLDC firmware available
  • Hardware interface to (...)

CAD/CAE symbols

Package Pins Download
WQFN (RTV) 32 View options

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