DRV8811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 DRV8811 device provides an integrated stepper motor driver solution for printers, scanners, and other automated equipment applications. The device has two H-bridge drivers, as well as microstepping indexer logic to control a stepper motor.

The output driver block consists of N-channel power MOSFETs configured as full H-bridges to drive the motor windings.

A simple STEP-and-DIR interface allows easy interfacing to controller circuits. Step mode pins allow for configuration of the motor in full-step, half-step, quarter-step, or eighth-step modes. Decay mode and PWM off-time are programmable.

Internal shutdown functions are provided for overcurrent protection, short-circuit protection, undervoltage lockout and overtemperature.

The DRV8811 device is packaged in a PowerPAD™ 28-pin HTSSOP package with thermal pad.

特性 Features

• Pulse Width Modulation (PWM) Microstepping Motor Driver
• Up to 1/8-Step Microstepping Indexer
• Step and Direction Control
• Programmable Mixed Decay, Blanking, and Off-Time

• Up to 1.9-A Current Per Winding
• Low 1.0-Ω (HS+LS) MOSFET RDS(on) (25°C)
• 8-V to 38-V Operating Supply Voltage Range
• Pin-to-Pin Compatible With the DRV8818
• Thermally Enhanced Surface Mount Package
• Protection Features:
• VM Undervoltage Lockout (UVLO)
• Overcurrent Protection (OCP)
• Thermal Shutdown (TSD)