DRV8316
- Three-phase BLDC motor driver
- 4.5-V to 35-V operating voltage (40-V abs max)
- High output current capability: 8-A Peak
- Low MOSFET on-state resistance
- 95-mΩ RDS(ON) (HS + LS) at TA = 25°C
- Low power sleep mode
- 1.5-µA at VVM = 24-V, TA = 25°C
- Multiple control interface options
- 6x PWM control interface
- 3x PWM control interface
- 6x PWM control interface with cycle by cycle current limit
- 3x PWM control interface with cycle by cycle current limit
- Does not require external current sense resistors, built-in current sensing
- Flexible device configuration options
- DRV8316R: 5-MHz 16-bit SPI interface for device configuration and fault status
- DRV8316T: Hardware pin based configuration
- Supports 1.8-V, 3.3-V, and 5-V logic inputs
- Built-in 3.3-V (5%), 30-mA LDO regulator
- Built-in 3.3-V/5-V, 200-mA buck regulator
- Delay compensation reduces duty cycle distortion
- Suite of integrated protection features
- Supply undervoltage lockout (UVLO)
- Charge pump undervoltage (CPUV)
- Overcurrent protection (OCP)
- Thermal warning and shutdown (OTW/OTSD)
- Fault condition indication pin (nFAULT)
- Optional fault diagnostics over SPI interface
The DRV8316 provides a single-chip power stage solution for customers driving 12-V and 24-V brushless-DC motors . The DRV8316 integrates three 1/2-H bridges with 40-V absolute maximum capability and a very low RDS(ON) of 95mOhms (high-side plus low-side) to enable high power drive capability. Current is sensed using an integrated current sensing feature which eliminates the need for external sense resistors. Power management features of an adjustable buck regulator and LDO generate the necessary voltage rails for the device and can be used to power external circuits.
DRV8316 implements a 6x or 3x PWM control scheme which can be used to implement sensored or sensorless field-oriented control (FOC), sinusoidal control, or trapezoid control using an external microcontroler. The DRV8316 is capable of driving a PWM frequency up to 200 kHz. The control scheme is highly configurable through hardware pins or register settings ranging from motor current limiting behavior to fault response.
Each output driver channel consists of N-channel power MOSFETs configured in a half-bridge configuration. Various PWM control modes are supported for simple interfacing to control circuits that can be powered by the 30-mA, 3.3-V internal regulator (AVDD). The DRV8316R/T also supports a buck regulator which in conjunction can support 200-mA with programmable regulated supply. The device supports 200-kHz maximum PWM frequency.
There are a large number of protection features integrated into the DRV8316, intended to protect the device, motor, and system against fault events.
Refer Section 9.1 for design consideration and recommendation on device usage.
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技術文件
| 重要文件 | 類型 | 標題 | 格式選項 | 下載最新的英文版本 | 日期 | |
|---|---|---|---|---|---|---|
| * | 資料表 | DRV8316 Three-Phase Integrated FET Motor Driver datasheet (Rev. B) | PDF | HTML | 2021/9/17 | ||
| 應用說明 | Improving Thermal Performance for Integrated FET Drivers | PDF | HTML | 2024/8/23 | |||
| 技術文章 | Achieving a 360-degree field of view in mechanically scanning lidar with BLDC moto | PDF | HTML | 2022/1/27 | |||
| 應用說明 | Delay and Dead Time in Integrated MOSFET Drivers | PDF | HTML | 2021/8/23 | |||
| 應用說明 | How to Design a Thermally-Efficient Integrated BLDC Motor Drive PCB (Rev. A) | 2017/2/5 |
設計與開發
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| 封裝 | 針腳 | CAD 符號、佔位空間與 3D 模型 |
|---|---|---|
| VQFN (RGF) | 40 | Ultra Librarian |