TI公司的DRV8301是用于三相馬達的柵極驅(qū)動器,包括三個半橋驅(qū)動器(每個可驅(qū)動兩個N溝MOSFET),一個用于高邊和一個用于低邊的驅(qū)動器.支持2.3A沉電流和1.7A源峰值電流,單電源8V-60V工作,支持100%占空比.對外接MOSFET可編程過流保護,主要用在三相無刷DC馬達和永磁同步馬達,CPAP和泵,電動自行車,醫(yī)院病床,輪椅以及電鉆, 攪拌機和切碎機.本文介紹了DRV8301主要特性, 方框圖, 應用案例電路圖以及DRV8301-HC-C2-KIT評估板主要特性和馬達驅(qū)動和控制解決方案框圖.
The DRV8301 is a gate driver IC for three phase motor drive applications. It provides three half bridge drivers, each capable of driving two N-type MOSFETs, one for the high-side and one for the low side. It supports up to 2.3A sink and 1.7A source peak current capability and only needs a single power supply with a wide range from 8 to 60V. The DRV8301 uses bootstrap gate drivers with trickle charge circuitry to support 100% duty cycle. The gate driver uses automatic hand shaking when high side FET or low side FET is switching to prevent current shoot through. Vds of FETs is sensed to protect external power stage during overcurrent conditions.
The DRV8301 includes two current shunt amplifiers for accurate current measurement.
DRV8301主要特性:
Operating Supply Voltage 8V–60V
2.3A Sink and 1.7A Source Gate Drive Current Capability
Integrated Dual Shunt Current Amplifiers With Adjustable Gain and Offset
Integrated Buck Converter to Support up to 1.5A External Load
Independent Control of 3 or 6 PWM Inputs
Bootstrap Gate Driver With 100% Duty Cycle Support
Programmable Dead Time to Protect External FETs from Shoot Through
Slew Rate Control for EMI Reduction
Programmable Overcurrent Protection of External MOSFETs
Support Both 3.3V and 5V Digital Interface
SPI Interface
Thermally Enhanced 56-Pin TSSOP Pad Down DCA Package
DRV8301應用:
3-Phase Brushless DC Motor and Permanent Magnet Synchronous Motor
CPAP and Pump
E-bike, Hospital Bed, Wheel Chair
Power Drill, Blender, Chopper
圖1. DRV8301方框圖
圖2. DRV8301簡化應用電路圖
圖3. DRV8301應用案例電路圖
DRV8301-HC-C2-KIT評估板
The DRV8301-HC-C2-KIT is a motor control evaluation kit for spinning three phase brushless DC and and brushless AC (BLAC) - often referred to as permanent magnet synchronous (PMSM) – motors with examples of both sensorless Field Oriented / Vector Control (FOC) and TI’s InstaSPIN-BLDC sensorless BLDC solution. The DRV8301-HC-C2-KIT is a high-performance, power-efficient, cost-effective platform that speeds development for quicker time to market. Applications include CPAP and pumps, E-bikes, E-scooters, medical pumps and drills, power tools, and robotics.
DRV8301-HC-C2-KIT評估板主要特性:
DRV8302 2.3A sink/1.7A source, three phase inverter with integrated buck converter for 1.5A external loads.
C2000 Piccolo F28035 MCU controlCARD – preflashed with code to spin motors using GUI
Isolated XDS100 Emulation
CCStudio v4.x Integrated Development Environment
圖4.DRV8301-HC-C2-KIT評估板外形圖
圖5.馬達驅(qū)動和控制解決方案框圖
詳情請見:
http://www.ti.com/lit/ds/symlink/drv8301.pdf
