AW8646QNR

AW8646QNR是一款高度集成的步进马达驱动芯片，能够提供多种衰减模式，具有短路保护、过温保护、UVLO、过流保护等功能；内置两个相同的H桥电机驱动器，PWM电机驱动电路和可配置的微步时序发生器，支持全步、半步、最高支持32微步。可应用在手机、平板电脑、打印机、视频监控摄像头和其它自动化设备中。

产品手册：

在线预览 - AW8646QNR - 产品手册

参考价格

1-99￥8.85
100-249￥7.25
250-499￥5.84
500-999￥4.60
1000+￥3.54

产品详细信息

参数

Motor Type	Stepper Motor
H bridge	2
Micro Step	1/32
VDD (Min) (V)	3
VDD (Max) (V)	12
Peak Current (A)	1.4
Ron (mΩ)	730
Control Mode	STEP/DIR
CTRL IF	HW GPIO
Temperature	-40℃~85℃
Function	Current Regulation nFault status
Package (mm)	QFN 4X4-24L

封装 | 引脚 | 尺寸

QFN 4X4-24L

特性

3V to 12V Supply Voltage Range 1.4A Full Scale current per H-Bridge Rdson HS + LS: Typical 0.73Ω Support up to 1/32th Microstepping Decay Modes supported: Adaptive Decay Technology Mixed Decay Slow Decay Fast Decay Support 1.8V Logic Level Programmable off-time 10,20, or 30s off-time Programmable Motor Torque Current Short-Circuit Protection, Over-Temperature Protection, Under-Voltage Protection Fault Condition Indication QFN 4mm X4mm X0.85mm-24L package

说明

The AW8646 is a flexible microstepping stepper motor driver. It is designed to operate bipolar stepper motor with up to 1/32th step mode for mobile phones, tablets, and other automated equipment applications. The device can be controlled by simple STEP/DIR interface allowing easy interfacing to controller circuits. The output block of each H-bridge driver consists of N-channel and P-channel power MOSFETS configured as full H-bridges to drive the motor windings. Pins allow configuration of the motor in full-step up to 1/32th step modes. Decay mode is configurable so that adaptive decay, slow decay, fast decay, and mixed decay can be used. A low power sleep mode is provided to achieve very-low quiescent current draw. AW8646 is capable of driving up to 1.4A (Full Scale) or 1A (RMS) current per H-Bridge The device offers a complete set of protection features including UVLO, overcurrent protection, short circuit protection, and over temperature. Fault conditions are indicated via the nFAULT pin

技术文档

类型	项目标题	语言	日期
产品设计指南	AW8646QNR_Hardware_Design_Guide	英文	2023-04-28
产品设计指南	AW8646QNR_Hardware_Design_Guide	中文	2023-04-28
产品手册	DS_AW8646_EN_V1.6	英文	2023-04-23
技术帖	【技术贴】如何让步进电机运转更丝滑？	中文	2025-12-30

设计和开发

如需其他信息或资源，请查看下方列表，点击标题即可进入详情页面。

软件开发

应用软件和框架

AW8646_GUI_V1.1.0.zip — 步进电机驱动的GUI调试工具

AW8646QNR/AW8646GQNR步进电机驱动芯片，基于步进电机驱动评估板的PC端GUI调试工具。可以快速评估芯片对步进马达的驱动效果。

了解详情

驱动程序或库

AW864XX_Driver_Qcom_V0.3.0 — AW864XX Android驱动

AW864XX 包含Sample Code,移植说明,调试指南等

了解详情

驱动程序或库

AW864XX _Driver — AW864XX MCU驱动

AW864XX 包含Sample Code,移植说明,调试指南等

了解详情

软件开发

应用软件和框架

AW8646_GUI_V1.1.0.zip — 步进电机驱动的GUI调试工具

AW8646QNR/AW8646GQNR步进电机驱动芯片，基于步进电机驱动评估板的PC端GUI调试工具。可以快速评估芯片对步进马达的驱动效果。

了解详情

驱动程序或库

AW864XX_Driver_Qcom_V0.3.0 — AW864XX Android驱动

AW864XX 包含Sample Code,移植说明,调试指南等

了解详情

驱动程序或库

AW864XX _Driver — AW864XX MCU驱动

AW864XX 包含Sample Code,移植说明,调试指南等

了解详情