TI DRV10983低噪音三相无传感器马达驱动方案

TI公司的DRV10983是集成了功率MOSFET的三相无传感器马达驱动器,连续驱动电流高达2A,输入电压8-28V,低噪音低外接元件,马达可通过PWM,模拟或I2C输入进行控制,主要用在家用电器风扇和HVAC.本文介绍了DRV10983主要特性,框图,以及评估板DRV10983 EVM主要特性,电路图和材料清单.

DRV10983 is a three-phase sensorless motor driver with integrated power MOSFETs, which can provide continuous drive current up to 2 A. The device is specifically designed for cost-sensitive, low-noise/low external component count applications.

The DRV10983 uses a proprietary sensorless control scheme to provide continuous sinusoidal drive, which significantly reduces the pure tone acoustics that typically occur as a result of commutation. The interface to the device is designed to be simple and flexible. The motor can be controlled directly through PWM, analog, or I²C inputs. Motor speed feedback is available through either the FG pin or I²C.

The DRV10983 features an integrated buck/linear regulator to efficiently step down the supply voltage to either 5 or 3.3 V for powering both internal and external circuits. The device provides a standby mode function to conserve power when the motor is not running. The regulator keeps running and is able to power an external microcontroller in the standby mode.

An I²C interface allows the user to reprogram specific motor parameters in registers and program the EEPROM to help optimize the performance for a given application. The DRV10983 is available in a thermally-efficient HTSSOP, 24-pin package with an exposed thermal pad. The operating temperature is specified from –40℃ to 125℃.

DRV10983主要特性:

Input Voltage Range: 8 to 28 V
Total Driver H + L Rdson: 250 mΩ
Drive Current: 2 A Continuous (3-A Peak)
Sensorless Proprietary Back Electromotive Force
(BEMF) Control Scheme
Continuous Sinusoidal 180° Commutation
No External Sense Resistor Required
For Flexibility User may Include External Sense
Resistor to Monitor Power Delivered to the Motor
Flexible User Interface Options:
I²C Interface: Access Registers
for Command and Feedback
Dedicated SPEED Pin: Accepts Either Analog or
PWM Input
Dedicated FG Pin: Provides TACH Feedback
Spin Up Profile can be Customized With EEPROM
Forward/Reverse Control With DIR Pin
Integrated Buck/Linear Converter to Efficiently
Provide Voltage (5 V/3.3 V) for Internal and
External Circuits
Supply Current 3 mA With Standby Mode
Overcurrent Protection
Lock Detection
Voltage Surge Protection
UVLO Protection
Thermal Shutdown Protection
Thermally Enhanced 24-Pin HTSSOP
DRV10983应用:
Appliance Fan
HVAC

图1. DRV10983框图

评估板DRV10983 EVM

The DRV10983 EVM is a complete solution for evaluating the DRV10983 24V, Three Phase Sensorless BLDC motor driver. Device evaluation and configuration for specific applications is possible with the provided DRV10983 EVM GUI. This document describes the kit details and explains the functions and locations of test points, jumpers, and connectors present on the kit. This document is also a quick start guide for using the GUI to tune a motor for application.

图2. 评估板DRV10983 EVM外形图

评估板DRV10983 EVM主要特性:

8-28V supply voltage range
2.0A continuous / 3A peak output current
PWM, I2C or onboard analog potentiometer speed control  
USB2ANY board included for I2C GUI communication
Evaluation motor included

评估板DRV10983 EVM包括:

The DRV10983 evaluation kit contains following:
1. DRV10983 EVM board
2. USB2ANY communication board for I2C GUI interaction
3. USB cable
4. 10-pin ribbon cable to connect USB2ANY and DRV10983 EVM
5. DRV10983 EVM GUI
6. A Runtian 3-phase BLDC motor, model number ZWL12_22_2.5A

图3. 评估板DRV10983 EVM电路
评估板DRV10983 EVM材料清单: