DRV8818 - 具有片上 1/8 微步进分度器的 2.5A 双极步进电机驱动器（Step/Dir 控制器）

DRV8818是TI德州仪器公司的一款集成FET的步进栅极驱动器产品，DRV8818是具有片上 1/8 微步进分度器的 2.5A 双极步进电机驱动器（Step/Dir 控制器），本站介绍了DRV8818的封装应用图解、特点和优点、功能等，并给出了与DRV8818相关的TI元器件型号供参考。

DRV8818 - 具有片上 1/8 微步进分度器的 2.5A 双极步进电机驱动器（Step/Dir 控制器） - 集成FET的步进栅极驱动器 - 步进驱动器 - 德州仪器

产品特性

Pulse Width Modulation (PWM) Microstepping Motor Driver
- Built-In Microstepping Indexer
- Up to 1/8 Microstepping
- Step and Direction Control
- Programmable Mixed Decay, Blanking, and Off Time
Up to 2.5-A Current Per Winding
Low 0.37-Ω (HS + LS) MOSFET RDS(ON) (25°C)
8-V to 35-V Operating Supply Voltage Range
Pin to Pin Upgrade for DRV8811 With Lower RDS(ON)
Thermally Enhanced Surface Mount Package
Protection Features
- VM Undervoltage Lockout (UVLO)
- Overcurrent Protection (OCP)
- Thermal Shutdown (TSD)
- Fault Condition Indication Pin (nFAULT)

产品应用

Printers
Textile Machinery
Positioning/Tracking
Factory Automation
Robotics

产品说明

The DRV8818 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 for each consists of N-channel power MOSFETs configured as full H-bridges to drive the motor windings.

A simple STEP/DIRECTION interface allows easy interfacing to controller circuits. The 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 over current protection, short circuit protection, under-voltage lockout and overtemperature.

The DRV8818 is packaged in a PowerPAD™ 28-pin HTSSOP package with PowerPAD™ (Eco-friendly: RoHS and no Sb/Br).

产品器件信息

PART NUMBER	PACKAGE	BODY SIZE (NOM)
DRV8818	HTSSOP (28)	9.70 mm x 4.40 mm

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