DRV8842数据手册集成电路（IC）的电机驱动器控制器规格书PDF

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
• 8.2-V to 45-V Operating Supply Voltage Range
• Five-Bit Winding Current Control Allows Up to 32 Current Levels
• Low MOSFET RDS(on) Typical 0.2 Ω (HS + LS)
• 5-A Maximum Drive Current at 24 V, 25°C
• Built-In 3.3-V Reference Output
• Industry-Standard PWM Control Interface
• Thermally Enhanced Surface Mount Package
• Protection Features:
• Overcurrent Protection (OCP)
• Thermal Shutdown (TSD)
• VM Undervoltage Lockout (UVLO)
• Fault Condition Indication Pin (nFAULT)