Overview
The DRV8353RSRGZR is a highly-integrated 3-phase smart gate driver from Texas Instruments, designed for three-phase brushless DC (BLDC) motor applications. This device is part of the DRV835x family, which includes field-oriented control (FOC), sinusoidal current control, and trapezoidal current control of BLDC motors. The DRV8353RSRGZR features a smart gate drive (SGD) architecture that reduces the need for external components typically required for MOSFET slew rate control and protection circuits. It also includes optional integrated current shunt amplifiers and a buck regulator to power the gate driver or an external controller.
Key Specifications
| Parameter | Value |
|---|---|
| Package | VQFN (RGZ) with 48 pins |
| Operating Temperature Range | -40°C to 125°C |
| Input Voltage Range | 9 to 100 V |
| Peak Source Current | 50 mA to 1 A |
| Peak Sink Current | 100 mA to 2 A |
| Buck Regulator Output | 2.5 to 75 V, 350 mA |
| Current Shunt Amplifiers Gain | Adjustable (5, 10, 20, 40 V/V) |
| PWM Modes | 6x, 3x, 1x, and independent |
| Interface | SPI or hardware interface |
| Low-Power Sleep Mode Current | 20 µA at VVM = 48 V |
Key Features
- Triple half-bridge gate driver with optional integrated buck regulator and triple low-side current shunt amplifiers
- Smart gate drive architecture with adjustable slew rate control for EMI performance and VGS handshake for minimum dead-time insertion to prevent shoot-through
- Integrated gate driver power supplies including high-side doubler charge pump and low-side linear regulator
- Integrated LM5008A buck regulator with 6 to 95-V operating voltage range and 2.5 to 75-V, 350-mA output capability
- Adjustable gain current shunt amplifiers with bidirectional or unidirectional support
- Support for 6x, 3x, 1x, and independent PWM modes, and 120° sensored operation
- SPI or hardware interface available
- Low-power sleep mode with 20 µA current at VVM = 48 V
- Integrated protection features including VM undervoltage lockout, gate drive supply undervoltage, MOSFET VDS overcurrent protection, MOSFET shoot-through prevention, gate driver fault, thermal warning and shutdown, and fault condition indicator
Applications
- 3-phase brushless-DC (BLDC) motor modules
- Fans, blowers, and pumps
- E-Bikes, E-scooters, and E-mobility
- Power and garden tools, lawn mowers
- Drones, robotics, and RC toys
- Factory automation and textile machines
Q & A
- What is the operating temperature range of the DRV8353RSRGZR?
The operating temperature range is -40°C to 125°C.
- What are the peak source and sink currents of the DRV8353RSRGZR?
The peak source current is 50 mA to 1 A, and the peak sink current is 100 mA to 2 A.
- What are the key features of the integrated buck regulator in the DRV8353RSRGZR?
The integrated LM5008A buck regulator operates from 6 to 95 V and provides an output of 2.5 to 75 V with a maximum current of 350 mA.
- What types of PWM modes are supported by the DRV8353RSRGZR?
The device supports 6x, 3x, 1x, and independent PWM modes.
- Does the DRV8353RSRGZR support SPI or hardware interface?
Yes, it supports both SPI and hardware interfaces.
- What is the current consumption in low-power sleep mode?
The current consumption in low-power sleep mode is 20 µA at VVM = 48 V.
- What are the integrated protection features of the DRV8353RSRGZR?
The device includes VM undervoltage lockout, gate drive supply undervoltage, MOSFET VDS overcurrent protection, MOSFET shoot-through prevention, gate driver fault, thermal warning and shutdown, and a fault condition indicator.
- What types of motor control schemes are supported by the DRV8353RSRGZR?
The device supports field-oriented control (FOC), sinusoidal current control, and trapezoidal current control of BLDC motors.
- What is the purpose of the smart gate drive architecture in the DRV8353RSRGZR?
The smart gate drive architecture reduces the number of external components needed for MOSFET slew rate control and protection circuits, optimizes dead time to prevent shoot-through, and provides flexibility in decreasing electromagnetic interference (EMI) by MOSFET slew rate control.
- What are some common applications of the DRV8353RSRGZR?
Common applications include 3-phase BLDC motor modules, fans, blowers, pumps, E-Bikes, E-scooters, power and garden tools, drones, robotics, RC toys, and factory automation and textile machines.
