Model & package intelligence
Model text, package form, tray or reel details, and visual evidence are reviewed together before RFQ feedback.
ALLEGRO A3984SLPTR-T A3984SLPTR
Configuration
1 options
Configuration
23+
Available for RFQ
Technical data
Product details
19
specifications
Core information
- Product name
- ALLEGRO A3984SLPTR-T
- Type
- ALLEGRO
- Minimum package
- 4000 圆盘
Technical parameters
- Electronic Component
- Electronic Component
- Electronic Component
- ALLEGRO
- Electronic Component
- A3984SLPTR-T
- Electronic Component
- 1
- Package
- TSSOP-24-EP
- Electronic Component
- Stepper Motor Driver IC
- Electronic Component
- 1.9g
- Electronic Component
- 1
- H
- 2
- Features
- Built-in Charge Pump;; positions; /; Motor
- Electronic Component
- BM0264368579
- Resistor
- 300mΩ
- Operating Temperature
- 20℃~+85℃
- Interface Type
- STEP/DIR
- Voltage
- 3V~5.5V
- Electronic Component
- 16
For datasheets, package documents, compatible-part guidance, or other technical resources, contact WMSIC customer service. Availability is confirmed case by case.
A3984SLPTR-T 双极步进电机驱动器产品概述
A3984SLPTR-T是美国埃戈罗（Allegro）推出的一款基于DMOS工艺的双极步进电机驱动器，专为中小功率步进电机的高精度驱动设计，集成度高、性能稳定，覆盖工业与消费电子多场景应用。
一、产品定位与核心功能
该驱动器定位于中小功率步进电机的集成驱动方案，采用双H桥结构支持双绕组步进电机全桥驱动，无需外部功率开关即可实现稳定输出。核心功能包括：16步细分控制（提升精度、降低振动）、集成电流调节与保护电路（简化外围），兼容3V5.5V逻辑电平（适配主流MCU），电机驱动电压覆盖8V35V，满足多数低压直流电源需求。
二、关键参数与性能优势
A3984SLPTR-T的参数针对实用场景优化，核心性能亮点如下：
- 宽电压兼容：控制电压3V5.5V，直接匹配Arduino、STM32等MCU，无需电平转换；电机驱动电压8V35V，覆盖12V、24V常见工业/消费电源，适用范围广。
- 稳定输出能力：持续输出电流2A（峰值满足短期过载），导通电阻仅300mΩ（典型值），低内阻大幅减少功率损耗，降低发热风险。
- 高精度细分控制：支持16步细分，将1.8°步距角电机细分至0.1125°，有效减少振动与噪音，提升定位精度，适合对精度要求较高的应用。
- 集成保护与开关：内置电流限制、过热保护，同时集成必要开关电路，减少外围元器件，降低BOM成本与设计复杂度。
三、封装与散热设计
产品采用TSSOP-24-EP封装（薄型小外形封装带外露散热焊盘）：
- 尺寸紧凑（4.4mm×7.8mm），适配空间受限的PCB设计；
- 外露散热焊盘（EP）直接连接PCB接地层，高效传导功率管热量，2A输出下仍能控制温度在工作范围，部分高负载场景可配合小型散热片优化。
四、工作温度与可靠性
工作温度范围为**-20℃~+85℃**（工业级标准），适应多环境：
- 低温场景（北方冬季户外设备）：-20℃下电气性能稳定；
- 高温场景（封闭机箱内打印机、3D打印机）：+85℃无性能衰减；
- DMOS工艺提升开关速度与抗干扰能力，适合电磁复杂的工业场景。
五、典型应用场景
凭借宽电压、高精度、小体积特点，广泛应用于：
- 办公自动化：打印机、扫描仪走纸/扫描电机驱动；
- 监控安防：云台电机精准定位与转动；
- 小型工业自动化：分拣设备、小型机械臂关节驱动；
- 消费电子与智能家居：3D打印机挤出机、智能窗帘、无人机云台；
- 医疗设备：小型诊断仪器（注射器泵、样本分析仪）传动部件。
该驱动器集成度高、性能稳定，可简化步进电机系统设计，降低成本与维护难度，是中小功率步进电机应用的优选方案。
Request for quote
Send RFQ
Use the form for single models, category sourcing, and multi-line BOM requirements.
Product sourcing intelligence
Model, package, availability, and BOM fit reviewed before quotation.
WMSIC turns product data, package visuals, BOM context, and sourcing signals into practical RFQ notes for buyers.
BOM matching & alternatives
BOM lines are compared by package, parameters, quantity, and workable alternatives for cleaner sourcing decisions.
Sourcing availability signal
Stock routes, quotation confidence, lead-time notes, and shipment feasibility are checked before sales follow-up.
Buyer sourcing scenarios
Examples of how common component sourcing requests are organized.
Typical RFQ scenarios based on the WMSIC form fields, catalog data, manual review steps, and shipment preparation workflow.
The buyer shares the full part number, package requirement, quantity, destination, and available product photos so the quotation can record the exact version under review.
A multi-line BOM is organized into direct sourcing lines, lines that need package clarification, and lines where alternative-part review is permitted.
The original manufacturer part number, datasheet revision, application, critical limits, and acceptable changes are collected before possible candidates are discussed.
Sample quantity, minimum packing, package format, target date, and courier destination are kept together in one RFQ conversation.
Package photos, model markings, board context, and the quantity needed for repair help focus the sourcing review on the relevant version.
When a suffix or package note is incomplete, the response records the open difference and requests buyer confirmation before procurement proceeds.
Packing format, carton notes, invoice details, courier option, destination, and tracking handoff are coordinated around the confirmed order.
The request connects the previously used model, current demand, package evidence, target timing, and replenishment sourcing route.
Related products
Packaged components ready for RFQ.
