Overview
The DRV8323HRTAR is a 6 to 60-V three-phase smart gate driver produced by Texas Instruments. This device is designed to drive three high-side and three low-side N-channel MOSFETs, making it suitable for brushless DC (BLDC) motor applications. The DRV8323HRTAR features an integrated charge pump for high-side MOSFETs and a linear regulator for low-side MOSFETs, ensuring efficient gate drive voltages. It also includes a 600-mA buck regulator in some variants, enhancing its versatility in various power management scenarios.
Key Specifications
| Parameter | Value |
|---|---|
| Input Voltage Range | 6 to 60 V (gate driver), 4 to 60 V (optional buck regulator) |
| Peak Gate Drive Current | Up to 1-A source, 2-A sink |
| Package Type | QFN-40-EP (6x6 mm) |
| Current Sense Amplifiers | Three low-side current sense amplifiers for bidirectional current sensing |
| Buck Regulator | 600-mA buck regulator (in DRV8323R variant) |
| Interface | SPI or hardware (H/W) interface for configuration |
| Protection Features | Undervoltage lockout, charge pump fault, MOSFET overcurrent, MOSFET short circuit, gate driver fault, overtemperature |
Key Features
- Triple half-bridge gate driver architecture to drive three high-side and three low-side N-channel MOSFETs
- Smart Gate Drive architecture with adjustable slew rate control
- Integrated gate driver power supplies supporting 100% PWM duty cycle
- Highly configurable through SPI or hardware interface
- Low-power sleep mode for reduced quiescent current draw
- Internal protection functions including undervoltage lockout, charge pump fault, MOSFET overcurrent, MOSFET short circuit, gate driver fault, and overtemperature
Applications
The DRV8323HRTAR is primarily used in brushless DC (BLDC) motor drive applications. It is suitable for various industrial, automotive, and consumer electronics where efficient and reliable motor control is required. The device's flexibility in terms of input voltage range and configuration options makes it a versatile choice for a wide range of motor drive systems.
Q & A
- What is the input voltage range of the DRV8323HRTAR? The input voltage range is 6 to 60 V for the gate driver and 4 to 60 V for the optional buck regulator.
- What type of MOSFETs does the DRV8323HRTAR drive? It drives three high-side and three low-side N-channel MOSFETs.
- What is the peak gate drive current of the DRV8323HRTAR? The peak gate drive current is up to 1-A source and 2-A sink.
- Does the DRV8323HRTAR have built-in current sense amplifiers? Yes, it includes three low-side current sense amplifiers for bidirectional current sensing.
- What is the package type of the DRV8323HRTAR? The package type is QFN-40-EP (6x6 mm).
- How is the DRV8323HRTAR configured? It can be configured through SPI or hardware (H/W) interface.
- What protection features does the DRV8323HRTAR have? It includes undervoltage lockout, charge pump fault, MOSFET overcurrent, MOSFET short circuit, gate driver fault, and overtemperature protection.
- Does the DRV8323HRTAR support a buck regulator? Yes, some variants (like DRV8323R) include a 600-mA buck regulator.
- What is the purpose of the low-power sleep mode in the DRV8323HRTAR? The low-power sleep mode reduces quiescent current draw by shutting down most of the internal circuitry.
- In what applications is the DRV8323HRTAR commonly used? It is commonly used in brushless DC (BLDC) motor drive applications in various industries such as industrial, automotive, and consumer electronics.
