Overview
The DRV8350SRTVR is a highly integrated three-phase smart gate driver designed by Texas Instruments. It is specifically tailored for driving brushless DC (BLDC) motors in various industrial, automotive, and robotics applications. This driver features an advanced architecture that includes integrated protection and diagnostics, making it ideal for high-performance motor control systems. The DRV8350SRTVR is housed in a compact and thermally enhanced 48-pin HTSSOP (PowerPAD) package, ensuring efficient and reliable motor operation.
Key Specifications
| Parameter | Specification |
|---|---|
| Operating Voltage Range | 9 to 100 V |
| Peak Source Current | 50 mA to 1 A |
| Peak Sink Current | 100 mA to 2 A |
| Integrated Buck Regulator | 6 to 95 V, 2.5 to 75 V, 350 mA output capability |
| Current Shunt Amplifiers | Optional triple low-side current shunt amplifiers, adjustable gain (5, 10, 20, 40 V/V) |
| PWM Modes | 6x, 3x, 1x, and independent PWM modes |
| Operating Temperature Range | -40°C to 125°C |
| Package Type | 48-pin HTSSOP (PowerPAD) |
| Interface | SPI or hardware interface available |
| Low-Power Sleep Mode | 20 µA at VVM = 48 V |
Key Features
- Smart Gate Drive Architecture: Optimizes dead time to prevent shoot-through conditions and provides flexibility in decreasing electromagnetic interference (EMI) through MOSFET slew rate control.
- Integrated Protection Features: Includes 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), and fault condition indicator (nFAULT).
- Integrated Buck Regulator: Eliminates the need for an external regulator, reducing component count and providing a 2.5 to 75 V, 350 mA output capability.
- Current Shunt Amplifiers: Optional triple low-side current shunt amplifiers with adjustable gain (5, 10, 20, 40 V/V) for bidirectional or unidirectional support.
- PWM Modes: Supports 6x, 3x, 1x, and independent PWM modes for flexible motor control.
- Compact Package: The 48-pin HTSSOP package is space-efficient and suitable for compact designs.
Applications
- Industrial Automation and Control Systems: Suitable for high-performance motor control in industrial environments.
- Automotive Systems: Ideal for automotive applications requiring reliable and efficient motor control.
- Robotics and Mechatronics: Used in robotics and mechatronics for precise and efficient motor control.
- Medical Equipment: Applicable in medical devices that require reliable and precise motor control.
- Home Appliances: Suitable for use in home appliances that require efficient and reliable motor operation).
- Aerospace and Defense Applications: Used in aerospace and defense for high-reliability motor control systems).
Q & A
- What is the DRV8350SRTVR?
The DRV8350SRTVR is a three-phase smart gate driver with an integrated buck regulator designed by Texas Instruments, ideal for driving three-phase brushless DC motors in various applications).
- How does the DRV8350SRTVR work?
The DRV8350SRTVR works by providing gate drive signals to power MOSFETs or IGBTs in a three-phase motor drive system and integrates a buck regulator to generate necessary voltage supplies. It includes protection features such as overcurrent protection and overtemperature shutdown).
- What are the key specifications of the DRV8350SRTVR?
The key specifications include an operating voltage range of 9 to 100 V, peak source and sink currents, integrated buck regulator, optional current shunt amplifiers, and various PWM modes. It operates in a temperature range of -40°C to 125°C and is housed in a 48-pin HTSSOP package).
- What are the integrated protection features of the DRV8350SRTVR?
The integrated protection features include 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), and fault condition indicator (nFAULT)).
- What are the advantages of using the DRV8350SRTVR?
The advantages include a highly integrated design reducing system complexity, efficient motor control optimizing power consumption, and robust protection mechanisms ensuring safe and reliable operation. It also features a compact package and supports various PWM modes).
- What are the potential applications of the DRV8350SRTVR?
The DRV8350SRTVR is suitable for industrial automation, automotive systems, robotics, medical equipment, home appliances, and aerospace and defense applications).
- How does the DRV8350SRTVR support different motor control schemes?
The DRV8350SRTVR supports different motor control schemes through optional integrated current shunt amplifiers and various PWM modes (6x, 3x, 1x, and independent)).
- What interface options are available for the DRV8350SRTVR?
The DRV8350SRTVR supports both SPI and hardware interfaces for easy configuration and communication).
- What is the power consumption in low-power sleep mode?
The DRV8350SRTVR has a low-power sleep mode with a current consumption of 20 µA at VVM = 48 V).
- Are there any alternatives to the DRV8350SRTVR?
Alternatives include the DRV8301 from Texas Instruments and the IRAMS10UP60B-2 from Infineon Technologies).
