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JSMSEMI DRV8870DDAR-S DRV8870DDAR
Configuration
1 options
Configuration
26+
Available for RFQ
Technical data
Product details
19
specifications
Core information
- Product name
- JSMSEMI DRV8870DDAR-S
- Type
- JSMSEMI
- Minimum package
- 4000 圆盘
Technical parameters
- Electronic Component
- Electronic Component
- Electronic Component
- JSMSEMI
- Electronic Component
- DRV8870DDAR-S
- Electronic Component
- 1
- Package
- SOP-8
- Electronic Component
- Brushed DC Motor Driver IC
- Electronic Component
- 0.185g
- Electronic Component
- 1
- Integrated FET
- Electronic Component
- Features
- Current Sampling
- Electronic Component
- BM0229961413
- Resistor
- 500mΩ
- Current
- 5A
- Operating Temperature
- 40℃~+125℃
- Operating Voltage
- 8V~40V
- Output Current
- 3A
For datasheets, package documents, compatible-part guidance, or other technical resources, contact WMSIC customer service. Availability is confirmed case by case.
DRV8870DDAR-S 产品概述
一、产品简介
DRV8870DDAR-S（JSMSEMI/杰盛微）是一款为有刷直流电机设计的高集成电机驱动芯片。器件内置功率FET，支持单电源驱动，工作电压范围宽（8V40V），持续输出电流可达3A，瞬态峰值电流可承受5A，适合中小功率直流马达、减速电机及相关执行器驱动场景。器件采用SOP-8封装，工作温度范围为-40℃+125℃，适应汽车及工业等严苛环境。
二、主要特性
- 工作电压（Vcc）：8V ~ 40V，适配12V/24V系统
- 连续输出电流：3A（最大）；峰值脉冲电流：5A（典型短时）
- 内部导通电阻（Rds(on)）：约500 mΩ（单路）
- 静态电流（Iq）：极低，约100 nA（待机/静态条件）
- 封装：SOP-8，便于SMT贴装与散热设计
- 温度范围：-40℃ ~ +125℃，满足车规级或工业级温度要求
- 集成FET，简化外围电路与PCB布线
三、典型功能与优势
- 高电压宽输入范围，支持多种电源拓扑和电机类型
- 集成功率FET缩小器件占板面积，降低系统BOM复杂度
- 低静态电流有利于节能待机场景，延长电池供电设备续航
- SOP-8封装在生产与检修上具有成本与兼容性优势
四、应用建议与设计要点
- PWM 控制：建议在驱动端采用适当频率的PWM控制电机速度，注意滤波与回生电压管理。
- 散热与过流：持续3A输出需关注PCB散热，采用较宽铜迹、散热垫或散热片；短时峰值5A应控制占空比与脉冲宽度以避免器件过热。
- 保护与滤波：系统设计时建议加输入旁路电容、TVS或抑制器件以应对瞬态浪涌与反电势；并在电源线上配置熔断或限流元件。
- 启动与欠压：在低电压或欠压情况下，驱动器可能进入保护或关断态，建议在系统中设计上电管理策略。
- 布线注意：为降低寄生电阻与热阻，电机电流回路应尽量短且铜厚，GND回路设计需规避噪声耦合
五、典型应用场景
- 有刷直流减速电机驱动（齿轮箱电机）
- 汽车：座椅、后视镜、门锁等小功率致动器（需结合车规认证）
- 工业自动化中小型执行器、阀门驱动
- 家电与消费类产品中的直流马达控制
六、选型与使用注意
- 请根据电机空载/堵转电流选择合适的散热与保护方案，避免长期接近器件极限值运行。
- 峰值电流仅适用于短时脉冲，连续工作请以3A为准并监控温度。
- 具体引脚功能、保护行为与推荐外设请参见器件数据手册与参考电路，按照厂商推荐布局走线与去耦元件进行设计。
七、总结
DRV8870DDAR-S（JSMSEMI）以其宽电压范围、集成FET结构、低静态功耗与SOP-8封装，为有刷直流电机控制提供了紧凑、可靠的解决方案。合理的散热与保护设计可发挥其在汽车、工业及消费电子等领域的优势，满足中小功率电机驱动需求。若需进行量产或用于关键应用，建议获取完整数据手册并按厂商指导进行评估与测试。
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