TI公司的DRV10983-Q1是集成了功率MOSFET的12V/24V汽車三相無傳感器BLDC馬達驅動器,連續驅動電流高達2A.滿足汽車規范AEC-Q100如–40℃ 到125℃工作溫度,HBM ESD分類Level 1C,CDM ESD分類Level C4A,馬達工作電壓6.2V-28V,具有過流保護,鎖住檢測,防電壓浪涌(AVS)保護,UVLO保護和熱關斷保護.主要用在汽車小型泵和風扇,座椅通風風扇,HEV電池冷卻風扇和摩托車燃油泵.本文介紹了DRV10983-Q1主要特性,功能框圖,應用電路以及評估模塊DRV10983-Q1 EVM主要特性,電路圖,材料清單和PCB效果圖.

The DRV10983-Q1 device is a 3-phase sensorlessmotor driver with integrated power MOSFETs, whichcan provide continuous drive current up to 2 A. Thedevice is specifically designed for cost-sensitive, lownoise,low-external-component-count fan and pumpapplications.

The DRV10983-Q1 device preserves register settingdown to 4.5 V and delivers current to the motor withsupply voltage as low as 6.2 V. If the power supplyvoltage is higher than 28 V, the device stops drivingthe motor and protects the DRV10983-Q1 circuitry.This function is able to handle a load dump conditionup to 45 V.

The DRV10983-Q1 device 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 interfaceto the device is designed to be simple and flexible. The motor can be controlled directly through PWM, analog, orI2C inputs. Motor speed feedback is available through both the FG pin and the I2C interface simultaneously.

The DRV10983-Q1 device features an integrated buck regulator to step down the supply voltage efficiently to 5 Vfor powering both internal and external circuits. The 3.3-V LDO also may be used to provide power for externalcircuits. The device is available in either a sleep mode or a standby mode version to conserve power when themotor is not running. The standby mode (8.5 mA) version (DRV10983SQ) leaves the regulator running and the sleep mode (48 μA) version (DRV10983Q) shuts the regulator off. Use the standby mode version in applicationswhere the regulator is used to power an external microcontroller. Throughout this data sheet, the DRV10983-Q1part number is used for both devices i.e. DRV10983Q (sleep version) and DRV10983SQ (standby version),except for specific discussions of sleep vs standby functionality.

An I2C interface allows the user to reprogram specific motor parameters in registers and to program theEEPROM to help optimize the performance for a given application. The DRV10983-Q1 device is available in athermally-efficient HTSSOP, 24-pin package with an exposed thermal pad. The operating ambient temperature isspecified from –40℃ to 125℃.

DRV10983-Q1主要特性:

? Qualified for Automotive Applications

? AEC-Q100 Qualified With the Following Results:

– Device Temperature Grade 1: –40℃ to 125°CAmbient Operating Temperature Range

– Device HBM ESD Classification Level 1C

– Device CDM ESD Classification Level C4A

? Operation Voltage Range:

– Motor Operation, 6.2 V to 28 V

– Register Setting Preserved, 4.5 V to 45 V

? Supports Load Dump Voltage up to 45 V

? Total Driver H + L rDS(on)

– 250 mΩ at TA = 25℃

– 325 mΩ at TA = 125℃

? Drive Current: 2-A Continuous Winding Current(3-A Peak)

? Configurable Output PWM Slew Rate andFrequency for EMI Management

? Sensorless Proprietary Back Electromotive Force(BEMF) Control Scheme (No Need of HallSensors)

? Continuous Sinusoidal 180° Commutation

? Initial Position-Detect Algorithm to Avoid BackSpin During Start-Up

? No External Sense Resistor Required

? Flexible User Interface Options:

– I2C Interface: Access Registers for Commandand Feedback

– Dedicated SPEED Pin: Accepts Either Analogor PWM Input

– Dedicated FG Pin: Provides TACH Feedback

– Spin-Up Profile Can Be Customized WithEEPROM

– Forward-Reverse Control With DIR Pin

? Integrated Buck Converter to Efficiently Provide5?V and 3.3-V LDOs for Internal and ExternalCircuits

? Supply Current 8.5 mA With Standby Version(DRV10983SQ)

? Supply Current of 48 μA With Sleep Version(DRV10983Q)

? Protection Features

– Overcurrent Protection (Protection for Phaseto-Phase, Phase-to-GND and Phase-to-VCCShorts

– Lock Detection

– Anti-Voltage Surge (AVS) Protection

– UVLO Protection

– Thermal Shutdown Protection

? Thermally Enhanced Package

DRV10983-Q1應用:

? Small Automotive Pumps and Fans

? Seat Ventilation Fans

? Motorcycle Fuel Pumps

? HEV Battery Cooling Fans

圖1.DRV10983-Q1框圖

圖2.DRV10983-Q1應用電路

評估模塊DRV10983-Q1 EVM

This user’s guide provides complete details of the customer evaluation module (EVM) for the DRV10983-Q1 device including hardware implementation, jumper configuration, and operating procedure to run 3-phase BLDC motors. This EVM user’s guide is intended to be used with the DRV10983-Q1 Tuning Guideto optimally tune a user motor.

The DRV10983-Q1 EVM is a complete solution for evaluating the DRV10983-Q1, three-phase sensorlessBLDC motor drivers. Device evaluation and configuration for specific applications is possible with theprovided DRV10983-Q1 EVM GUI. This document describes the kit details and explains the functions andlocations of test points, jumpers, and connectors present on the kit. This document is also a quick-startguide for using the GUI to tune a motor for application.

評估模塊DRV10983-Q1 EVM包括:

? DRV10983-Q1 EVM board

? USB2ANY communication board for I2C GUI interaction

? USB cable

? 10-pin ribbon cable to connect the USB2ANY and DRV10983-Q1 EVM

? DRV10983-Q1 EVM GUI

圖3.評估模塊DRV10983-Q1 EVM外形圖

圖4.評估模塊DRV10983-Q1 EVM電路圖

評估模塊DRV10983-Q1 EVM材料清單:

圖5.評估模塊DRV10983-Q1 EVM PCB效果圖