Overview
The DRV8323RHRGZR from Texas Instruments is a highly integrated 3-phase smart gate driver designed for driving high-side and low-side N-channel power MOSFETs in various motor control applications. This device is part of the DRV832x family, which offers advanced features such as adjustable slew rate control, integrated gate driver power supplies, and comprehensive protection mechanisms. The DRV8323RHRGZR is particularly suited for brushless DC (BLDC) motor modules, permanent magnet synchronous motors (PMSM), and other high-performance motor drive systems.
Key Specifications
| Parameter | Description |
|---|---|
| Operating Voltage Range | 6 to 60 V for gate driver, 4 to 60 V for optional buck regulator |
| Gate Drive Current | Peak source current: 10 mA to 1 A, Peak sink current: 20 mA to 2 A |
| Integrated Gate Driver Power Supplies | High-side charge pump, Low-side linear regulator |
| Current Sense Amplifiers | Three integrated low-side current sense amplifiers with adjustable gain (5, 10, 20, 40 V/V) |
| Buck Regulator | Optional 600 mA buck regulator (LMR16006X SIMPLE SWITCHER®) |
| PWM Modes | 6x, 3x, 1x, and independent PWM modes |
| Logic Inputs | Supports 1.8-V, 3.3-V, and 5-V logic inputs |
| Package | VQFN (48-pin), 7.00 mm × 7.00 mm |
| Protection Features | VM undervoltage lockout, charge pump undervoltage, MOSFET overcurrent protection, gate driver fault, thermal warning and shutdown, fault condition indicator (nFAULT) |
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 including high-side charge pump and low-side linear regulator.
- Optional integrated buck regulator (LMR16006X SIMPLE SWITCHER®) with 0.8 to 60 V, 600 mA output capability.
- Three integrated triple current sense amplifiers with adjustable gain and bidirectional or unidirectional support.
- SPI and hardware interface available for configuration.
- Low-power sleep mode with 12 µA quiescent current draw.
- Linear voltage regulator providing 3.3 V, 30 mA output.
- Compact QFN packages with exposed thermal pad for efficient heat dissipation.
- Comprehensive protection features including undervoltage lockout, overcurrent protection, thermal warning, and fault condition indicator.
Applications
- Brushless-DC (BLDC) motor modules and PMSM.
- Fans, pumps, and servo drives.
- E-bikes, e-scooters, and e-mobility solutions.
- Cordless garden and power tools, lawnmowers.
- Cordless vacuum cleaners.
- Drones, robotics, and RC toys.
- Industrial and logistics robots.
Q & A
- What is the operating voltage range of the DRV8323RHRGZR?
The DRV8323RHRGZR operates from 6 to 60 V for the gate driver and 4 to 60 V for the optional buck regulator.
- What are the peak gate drive currents supported by the DRV8323RHRGZR?
The device supports peak source currents from 10 mA to 1 A and peak sink currents from 20 mA to 2 A.
- Does the DRV8323RHRGZR have integrated current sense amplifiers?
Yes, it integrates three low-side current sense amplifiers with adjustable gain.
- What types of PWM modes are supported by the DRV8323RHRGZR?
The device supports 6x, 3x, 1x, and independent PWM modes.
- What is the purpose of the integrated buck regulator in the DRV8323RHRGZR?
The integrated buck regulator (LMR16006X SIMPLE SWITCHER®) provides a 0.8 to 60 V, 600 mA output capability.
- How does the DRV8323RHRGZR protect against faults?
The device includes protection features such as VM undervoltage lockout, charge pump undervoltage, MOSFET overcurrent protection, gate driver fault, thermal warning and shutdown, and a fault condition indicator (nFAULT).
- What is the package type and size of the DRV8323RHRGZR?
The device comes in a VQFN (48-pin) package with dimensions of 7.00 mm × 7.00 mm.
- Can the DRV8323RHRGZR be configured via SPI or hardware interface?
Yes, the device supports both SPI and hardware interfaces for configuration.
- What is the quiescent current draw in the low-power sleep mode of the DRV8323RHRGZR?
The device has a low-power sleep mode with a quiescent current draw of 12 µA.
- What are some common applications of the DRV8323RHRGZR?
Common applications include BLDC motor modules, PMSM, fans, pumps, servo drives, e-bikes, e-scooters, cordless tools, drones, and industrial robots.
