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DRV8704是一款适用于工业设备应用的双路刷式电机控制器。该器件可控制配置为双H桥的外部N沟道MOSFET。
该器件使用自适应消隐时间和各种电流衰减模式(包括自动混合衰减模式)对电机电流进行精确控制。
通过一个简单的PWM接口即可轻松与控制器电路相连.SPI串行接口用于对器件的工作模式进行编程。输出电流(转矩),栅极驱动器设置以及衰减模式均可通过SPI串行接口进行编程。
该器件的内部关断功能可提供过流保护,短路保护,栅极驱动器故障排除,欠压锁定(UVLO)以及过热保护.FAULTn引脚用于指示故障情况,故障情况通过各自的SPI专用位进行报告。
DRV8704采用PowerPAD带有散热焊盘的38引脚HTSSOP封装(环保型:符合RoHS标准且不含锑/溴)。
所有商标均为其各自所有者的财产。
Vs (Min) (V) |
Vs (Max) (V) |
Peak Output Sink Current Gate Drive (Max) (A) |
Peak Output Source Current Gate Drive (Max) (A) |
Control I/F |
Features |
Rating |
DRV8704 | DRV8702-Q1 | DRV8702D-Q1 | DRV8703-Q1 | DRV8703D-Q1 |
---|---|---|---|---|
8 | 5.5 | 5.5 | 5.5 | 5.5 |
52 | 45 | 45 | 45 | 45 |
0.4 | 0.5 | 0.5 | 0.5 | 0.5 |
0.2 | 0.25 | 0.25 | 0.25 | 0.25 |
PWM | PHASE/ENABLE PWM Independent 1/2-H PWM | Independent 1/2-H PWM | PHASE/ENABLE PWM Independent 1/2-H PWM | Independent 1/2-H PWM |
Automatic Mixed Decay Mode Adjustable Gate Drive Settings 5V Integrated LDO Low-Power Sleep Mode Highly Configurable SPI | Adjustable Gate Drive Settings Integrated Current Shunt Amplifier Low-Power Sleep Mode | Adjustable Gate Drive Settings Integrated Current Shunt Amplifier Low-Power Sleep Mode | Adjustable Gate Drive Settings SPI Interface Integrated Current Shunt Amplifier Low-Power Sleep Mode | Adjustable Gate Drive Settings SPI Interface Integrated Current Shunt Amplifier Watch Dog Low-Power Sleep Mode |
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