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公司介绍
Motor Drivers, Brushless | LV8907UW
概览
LV8907 是一款高性能、无传感器三相 BLDC 电机控制器，带有集成的门极驱动器，用于驱动外部 N-MOSFET。片上两级电荷泵提供了所需的门极电流，适用于多种超低 RDS(ON) 型外部 N-MOSFET。该器件提供了多种系统保护和诊断功能，如过电流、过电压、短路、欠电压、高温等。它支持开环以及闭环速度控制，带有用户可配置启动、速度设置和比例/积分 (PI) 控制系数，因此适用于多种电机和负载组合。LV8907 具有内置的线性稳压器用于为外部电路、监控计时器和局域互联网 (LIN) 收发器供电，提供了最小的系统解决方案占位。提供了 SPI 接口进行参数设置和系统运行状况监控。LV8907 工作结温容限可达 175°C，具有可电子兼容 LIN 的控制信号（PWM 和 Enable），是理想的独立汽车 BLDC 电机控制系统解决方案。
- Pumps (fuel, oil, coolant, hydraulic controls, vacuum, ...)
- Fans and Blowers (HVAC, radiator, condenser, battery, inverter, charger, ...)
- Compressors
- Cars, Boats, Trains,...
- Building Automation (ventilation, heating system, solar boiler, automated doors & shutters, ...)
- Industrial Equipment
- White Goods
- Operating junction temperature up to 175°C
- Operating voltage range from 5.5 V to 20 V with tolerance from 4.5 V to 40 V
- Embedded proprietary sensorless commutation control
- Built-in LIN transceiver and Watchdog timer
- SPI interface for real-time parameterization and diagnostic
- Various system protection features including:
♦ Shoot through protection using configurable dead time
♦ Drain-source short detection
♦ Cycle-by-cycle current limit and overcurrent shutdown
♦ Overvoltage- and undervoltage shutdown
♦ Overtemperature warning and -shutdown
♦ Input PWM fault detection - Configurable speed setting and PI control coefficients
- Supports both open-loop and closed-loop speed control
- Integrated 5 V/3.3 V regulator output for external circuit
- Integrated predrivers for driving six N-MOSFETs
- Two-stage charge pump for continuous 100% duty cycle operation
- AEC−Q100 Qualified and PPAP Capable
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