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主營業務:銷售品牌IC(集成電路)，軍工IC，電源管理IC，LED集成芯片，電源模塊功率模塊，通信模塊與GPS定位終端設備，電容電阻，連接器，繼電器，晶振，二三極管等貼片元器件
Texas Instruments Texas Instruments DRV8x 集成電機驅動器
Texas Instruments DRV8x 電機驅動器 可對有刷和無刷電機、步進電機或其他電子機械傳動器等電磁設備進行驅動。設計人員可借助 TI DRV8x 系列集成電機驅動器快速、輕松地實現電機的驅動，縮短上市時間，并極大地簡化設計。通過集成柵極驅動電路、感應放大器、保護裝置、FETS、工業標準控制接口，并采用驅動算法，設計復雜度、電路板空間以及電機驅動時間等均獲得大幅降低。憑借過流、散熱、擊穿以及欠壓等片上保護功能，DRV8x系列器件具有良好的穩定性和可靠性，可得到充分保護。
特性
DRV83xx/DRV84xx Benefits
Integrated pre-drive and power stage capable of up to 24A peak current with 50V supply rail
Extensive on-chip protection including over current, over temperature, under voltage, and short circuit protection
Direct access PWM inputs to the bridge allow for custom commutation and control software from the host processor
DRV87xx Features
Pulse Width Modulation (PWM) Motor Driver
Drives External N-Channel MOSFETs
PWM Control Interface for Dual DC Motors
Supports 100% PWM Duty Cycle
8V to 52V Operating Supply Voltage Range
Adjustable Gate Drive (4 Levels)
50mA to 200mA Source Current
100mA to 400mA Sink Current
Integrated PWM Current Regulation
Flexible Decay Modes
AutomatIC Mixed Decay Mode
Slow Decay
Fast Decay
Mixed Decay (Adjustable Percent Fast)
Highly Configurable SPI
Torque DAC to Digitally Scale Current
Low-Current Sleep Mode (65μA)
5V, 10mA LDO Regulator
Thermally-Enhanced Surface-Mount Package
38-Pin HTSSOP (PowerPAD)
Protection Features
VM Undervoltage Lockout (UVLO)
Gate Driver Fault (PDF)
Overcurrent Protection (OCP)
Thermal Shutdown (TSD)
Fault Condition IndICation Pin (nFAULT)
Fault DiagnostICs through SPI
DRV88xx Benefits
Integrated pre-drive and power stage capable of 5A peak current with 45V supply rails
Extensive on-chip protection including over current, over temperature, under voltage, and short circuit protection
Integrated control logIC for current regulation, PWM generation, and mICro-stepping indexer
Simple to use control interface requiring only a few pins to control (step / direction for stepper motors and phase / enable for DC motors)
應用
Motor Control AC Induction Motors (ACIM) Brushed DC Motors Brushless DC Motors (BLDC) Permanent Magnet Synchronous Motors (PMSM) Stepper Motors
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