DRV8842中文资料47-V, 5-A H-bridge motor driver with current regulation数据手册TI规格书

描述 Description

The DRV8842 provides an integrated motor driver solution for printers, scanners, and other automated equipment applications. The device has one H-bridge driver, and is intended to drive one DC motor, one coil of a stepper motor, or other loads. The output driver block consists of N-channel power MOSFETs configured as an H-bridge. The DRV8842 can supply up to 5-A peak or 3.5-A RMS output current (with proper heatsinking at 24 V and 25°C).Separate inputs to independently control each half of the H-bridge are provided. Internal shutdown functions are provided for overcurrent protection, short-circuit protection, undervoltage lockout, and overtemperature.TheDRV8842 is available in a 28-pin HTSSOP package with PowerPAD (Eco-friendly: RoHS & no Sb/Br). For all available packages, see the orderable addendum at the end of the datasheet.

特性 Features

• Single H-Bridge Current-Control Motor Driver
• Five-Bit Winding Current Control Allows Up to 32 Current Levels
• 5-A Maximum Drive Current at 24 V, 25°C
• Industry-Standard PWM Control Interface
• Protection Features:
• Thermal Shutdown (TSD)
• Fault Condition Indication Pin (nFAULT)

简介

DRV8842属于集成电路（IC）的电机驱动器控制器。由TI制造生产的DRV8842电机驱动器，控制器产品属于电机驱动器和控制器电源管理集成电路 (PMIC) 系列，可用于控制或操作从某电源施加到电机或相关机电执行器的电源。所实现的具体功能和特性集根据预期负载和预期应用的特性有很大差异，范围从用于有刷电机的简单开环速度控制到基于步进电机的高级闭环运动控制。