DRV835x Three-Phase Smart Gate DriversTexas Instruments' 100 V gate drivers are ideal for three-phase brushless DC motor control (BLDC) applicationsTexas Instruments' DRV835x devices are highly-integrated gate drivers that are designed for three-phase BLDC motor applications such as field-oriented controls (FOC), sinusoidal current controls, and trapezoidal current controls. The device variants provide optional integrated current shunt amps 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 is typical for MOSFET slew rate control and protection circuits. The SGD architecture 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.

The various PWM control modes (6x, 3x, 1x, and independent) support simple interfacing to the external controller. These modes decrease the number of outputs required of the controller for the motor driver PWM control signals. The 1x PWM-mode is for simple sensored trapezoidal controls of BLDC motors by using an internal block commutation table.Features9 V to 100 V, triple half-bridge gate driverIntegrated buck regulator (optional)Triple low-side current shunt amps (optional)Smart gate drive architecture:Adjustable slew rate control for EMI performanceVGS handshake and minimum dead-time insertion prevents shoot-throughPeak source current: 50 mA to 1 APeak sink current: 100 mA to 2 AStrong pulldown circuit helps mitigate dv/dtIntegrated gate driver power supplies:High-side doubler charge pump for 100% PWM duty-cycle controlLow-side linear regulatorSPI or hardware interface availableLow-power sleep-mode: 20 μA at VVM = 48 VIntegrated triple current shunt amps:Adjustable gain: 5 V/V, 10 V/V, 15 V/V, and 40 V/VBidirectional or unidirectional supportIntegrated LM50084A buck regulator:Operating voltage range: 6 V to 95 VOutput capability: 2.5 V to 75 V, 350 mAPWM modes (6x, 3x, 1x, and independent):     Sensored operation: 120°Integrated protection features:VM undervoltage lockout (UVLO)Gate drive supply undervoltage (GDUV)MOSFET VDS overcurrent protection (OCP)MOSFET shoot-through preventionGate driver fault (GDF)Thermal warning and shutdown (OTW/OTSD)Fault condition indicator (nFAULT)ApplicationsThree-phase BLDC motorsFans, blowers, and pumpse-Bikes, e-scooters, and e-mobilityPower/garden tools and lawn mowersDrones, robotics, and RC toysFactory automation and textile machinesDRV835x Three-Phase Smart Gate DriversImageManufacturer Part NumberDescriptionInterfaceAvailable QuantityView DetailsDRV8350RHRGZTIC MTR DRV MULTIPHAS 6-95V 48QFNHardware34 - Immediate

2750 - Factory StockView DetailsDRV8350RSRGZTIC MTR DRV MULTIPHAS 6-95V 48QFNSPI350 - Immediate

1250 - Factory StockView DetailsDRV8353RHRGZTIC MTR DRV MULTIPHAS 6-95V 48QFNHardware221 - Immediate

1250 - Factory StockView DetailsDRV8353RSRGZTIC MTR DRV MULTIPHAS 6-95V 48QFNSPI172 - Immediate

521 - Factory StockView DetailsDRV8350HRTVTHALL EFFECT SENSOR250 - Immediate

1250 - Factory StockView DetailsDRV8350SRTVTHALL EFFECT SENSOR250 - Immediate

2401 - Factory StockView DetailsDRV8350RHRGZRIC MTR DRV MULTIPHAS 6-95V 48QFNHardware7500 - Factory StockView DetailsDRV8350RSRGZRIC MTR DRV MULTIPHAS 6-95V 48QFNSPI0View DetailsEvaluation BoardsImageManufacturer Part NumberDescriptionAvailable QuantityView DetailsDRV8350H-EVMDEVELOPMENT INTERFACE5 - Immediate

39 - Factory StockView DetailsDRV8350S-EVMDEVELOPMENT INTERFACE1 - Immediate

18 - Factory StockView Details