/ Motor drivers

AWD8436QNR

带 I2C 接口的 1/256 微步步进电机驱动 IC

Datasheet :

Product details

Parameters

Motor Type	Stepper Motor
H bridge	2
Micro Step	1/256
VDD (Min) (V)	3
VDD (Max) (V)	12
Peak Current (A)	1.4
Ron (mΩ)	900
Control Mode	I²C
CTRL IF	I²C
Temperature	-40℃~125℃
Function	Stall detection and open-load detection
Package (mm)	QFN 4X4-24L

Package | Pins | Size

QFN 4X4-24L

Features

3V 至 12V 电源电压范围每个 H 桥 1.4 A 满量程电流 I2C 数字接口堵转检测和开路检测高侧 + 低侧 RDS(on)：典型值 0.9 Ω 支持高达 1/256 微步自适应衰减技术混合衰减慢速衰减快速衰减支持1.2V、 1.8 V、3.3 V 逻辑电平可编程关断时间：10μs、20μs 或 30μs 关断时间可编程电机转矩电流短路保护、过温保护、欠压保护故障状态指示 QFN 4 mm × 4 mm × 0.85 mm，24 引脚封装

Description

The AWD8436 is a flexible microstepping stepper motor driver. It is designed to operate bipolar stepper motor with up to 1/256th 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 with I2C Interface. 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. AWD8436 allows configuration of the motor in full-step up to 1/256th 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. AWD8436 is capable of driving up to 1.4A (Full Scale) or 1A (RMS) current per H-Bridge The device is equipped with stall detection function. An interrupt will be triggered and reported when the set threshold is exceeded. It can also be configured to stop output upon a single stall event. Output will resume only after the stall flag is cleared via command The device offers a complete set of protection features including UVLO, overcurrent protection, short circuit protection, Open-load detection and over temperature. Fault conditions are indicated via the nFAULT pin.

Technical documentation

	Type	Title		Language		Date
	Datasheet	DS_AWD8436QNR_EN_V1.0		英文		2026-09-28

Design & development

For additional terms or required resources, click any title below to view the detail page where available.

Software development

APPLICATION SOFTWARE&FRAMEWORK

Motor_GD32F303CG_MCU_FW — MCU firmware for Motor EVB

MCU firmware for Motor EVB

View options

APPLICATION SOFTWARE&FRAMEWORK

AWD8436_GUI — AWD8436 product tuning GUI plugin

AWD8436 product tuning GUI plugin. Requires AwinicSCPV4 installed.

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DRIVER OR LIBRARY

AWD8436_Drivers — Android drivers for AWD8436

Android drivers for AWD8436, including sample code, porting guide, debugging guide, etc.

View options

Software development

APPLICATION SOFTWARE&FRAMEWORK

Motor_GD32F303CG_MCU_FW — MCU firmware for Motor EVB

MCU firmware for Motor EVB

View options

APPLICATION SOFTWARE&FRAMEWORK

AWD8436_GUI — AWD8436 product tuning GUI plugin

AWD8436 product tuning GUI plugin. Requires AwinicSCPV4 installed.

View options

DRIVER OR LIBRARY

AWD8436_Drivers — Android drivers for AWD8436

Android drivers for AWD8436, including sample code, porting guide, debugging guide, etc.

View options