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ALLEGRO A3959SLBTR-T A3959SLBTR
Configuration
1 options
Configuration
24+
Available for RFQ
Technical data
Product details
19
specifications
Core information
- Product name
- ALLEGRO A3959SLBTR-T
- Type
- ALLEGRO
- Minimum package
- 1000 圆盘
Technical parameters
- Electronic Component
- Electronic Component
- Electronic Component
- ALLEGRO
- Electronic Component
- A3959SLBTR-T
- Electronic Component
- 1
- Package
- SOIC-24-300mil
- Electronic Component
- Brushed DC Motor Driver IC
- Electronic Component
- 0.805g
- Electronic Component
- 1
- Features
- Current Sampling
- Electronic Component
- BM0257712310
- Resistor
- 270mΩ
- Current
- 6A
- Operating Temperature
- 20℃~+85℃
- Operating Voltage
- 4.5V~5.5V
- Output Current
- 3A
- Electronic Component
- Electronic Component
For datasheets, package documents, compatible-part guidance, or other technical resources, contact WMSIC customer service. Availability is confirmed case by case.
A3959SLBTR-T 产品概述
一、概述
A3959SLBTR-T 是美国 ALLEGRO（埃戈罗）出品的一款面向直流电机驱动的 DMOS 电源驱动器，采用 SOIC-24（300 mil）封装，器件内部采用并联 DMOS 结构以降低导通电阻，适合需要高效率、低导通损耗的电机或负载驱动场合。该器件在设计上兼顾功率密度与封装可焊性，便于在有限空间内实现较大的输出能力。
二、关键参数（基于给定信息）
- 导通电阻（Rds(on)）：270 mΩ
- 工作温度范围：-20 ℃ ～ +85 ℃
- 封装：SOIC-24-300mil
- 描述：电机驱动器 — DMOS — 并联 — 24 引脚 — SOIC
- 品牌：ALLEGRO（美国埃戈罗）
注：以上为用户提供的基础参数摘要，使用前请以厂家正式数据手册为准以获取完整电气、热和机械规范。
三、主要特性与优势
- 低导通电阻：270 mΩ 的低 Rds(on) 有助于降低导通损耗，提高效率并减小发热，利于延长器件寿命和降低散热需求。
- 并联 DMOS 结构：器件内部或设计支持并联 DMOS，可在同一封装内实现更低的等效电阻，适合中等功率电机驱动应用。
- 标准化封装：SOIC-24（300 mil）封装便于 SMT 装配与自动化生产，适配常见 PCB 布局和插装工艺。
- 宽温度工作范围：满足一般工业和消费类应用的环境要求。
四、典型应用场景
- 直流电机驱动（小型电机、风扇、执行器）
- 智能家电与便携设备的电机控制模块
- 步进电机驱动的前端功率级（配合控制逻辑与电流检测）
- 需要低导通损耗的功率开关或电源管理应用
五、设计与使用建议
- 散热措施：尽管器件导通电阻较低，长期大电流工作仍会产生显著热量。建议在 PCB 设计中采用宽铜厚走线、散热填充区及必要的过孔散热通道。
- 去耦与滤波：在器件电源输入端放置适当的陶瓷/电解电容以抑制瞬态和回路噪声，降低电磁干扰（EMI）。
- 布局注意：高电流回路应尽量短且成环路，驱动与控制信号走线分离，敏感信号加地平面保护。
- 保护与监控：在实际应用中应配合熔断器、电流检测和过温保护电路，以提高系统可靠性并防止短路/过载损伤。
- 温度与电流余量：在高温环境下应对额定电流进行适当降额，确保长期可靠运行。
- 校核与验证：实际设计前请参考完整数据手册进行电气极限、瞬态特性及热阻计算，必要时使用评估板或仿真验证热性能与电流承载能力。
六、采购与资料
欲获得完整电气参数、功能框图、引脚定义、典型应用电路及封装尺寸，请查阅 ALLEGRO 官方数据手册或联系授权代理商。选型时应核对器件完整型号（A3959SLBTR-T）与封装信息，确保与设计需求匹配。
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