TI DRV8837直流马达驱动解决方案.docx

TI DRV8837 直流马达驱动解决方案关键字:工业控制,马达驱动,DRV8837 TI公司的 DRV883 x是 H 桥马达驱动器系列产品,能驱动 DC 马达或其它负载,输出部分包括 N 沟功率 MOSFET, 驱动电流最大为 , PWM 或 PH/EN 接口,内置的保护包括过流保护, 短路保护, 欠压锁住和超温保护. 主要用在 IP 网络监视照相机, 气表, 低压马达控制和水表. 本文介绍了 DRV8837 主要特性, 功能框图, DRV883 评估模块(EVM) 主要特性,电路图和材料清单. The DRV883x provides an integrated motor driver solution for cameras, consumer products, toys, and other low-voltage or battery-powered motion control applications. The device can drive one DC motor or other devices like solenoids. The output driver block consists of N-channel power MOSFET ’s configured as an H-bridge to drive the motor winding. An internal charge pump generates needed gate drive voltages. The DRV883x can supply up to A of output current. It operates on a motor power supply voltage from 0 to 11 V, and a device power supply voltage of V to V. The DRV8837 has a PWM (IN/IN) input interface; the DRV8837 has a PH/EN input interface. Both interfaces patible with industry-standard devices. Internal shutdown functions are provided for overcurrent protection, short circuit protection, undervoltage lockout, and overtemperature. DRV8837 主要特性: H-Bridge Motor Driver Drives a DC Motor or Other Loads Low MOSFET On-resistance: HS + LS 280 mΩ -A Maximum Drive Current Separate Motor and Logic Supply Pins: Motor VM: 0 to 11 V Logic VCC: to7V PWM or PH/EN Interface DRV8837: PWM, IN1/IN2 DRV8838: PH/EN Low-powe