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MSKSEMI RZ7889-MS RZ7889
Configuration
1 options
Configuration
26+
Available for RFQ
Technical data
Product details
19
specifications
Core information
- Product name
- MSKSEMI RZ7889-MS
- Type
- MSKSEMI
- Minimum package
- 4000 圆盘
Technical parameters
- Electronic Component
- Electronic Component
- Electronic Component
- MSKSEMI
- Electronic Component
- RZ7889-MS
- Electronic Component
- 1
- Package
- SOP-8
- Electronic Component
- Brushed DC Motor Driver IC
- Electronic Component
- 0.129g
- Electronic Component
- 1
- Integrated FET
- Electronic Component
- H
- 1
- Features
- Current Sampling
- Electronic Component
- BM0228272883
- Resistor
- 58mΩ；71mΩ
- Current
- 9A
- Operating Temperature
- 25℃~+85℃
- Operating Voltage
- 3V~18V
For datasheets, package documents, compatible-part guidance, or other technical resources, contact WMSIC customer service. Availability is confirmed case by case.
RZ7889-MS 产品概述
一、产品简介
RZ7889-MS 是 MSKSEMI（美森科）推出的一款单通道 H 桥马达驱动器，集成功率 FET，适用于单路直流有刷电机的驱动控制。器件工作电压范围宽（3V 至 18V），在满足小型电机驱动需求的同时，提供低静态功耗和较低的导通损耗，是消费类、电动玩具、机器人和小型执行器等应用的理想选择。
二、关键参数
- 工作电压：3V ~ 18V
- 最大输出电流：5A（受散热条件限制，实际应用请参照热设计）
- 静态电流（Iq）：1mA（低待机功耗，适合电池供电场景）
- 导通电阻：58mΩ；71mΩ（器件内部不同功率 FET 的典型导通电阻）
- H 桥数量：1（单通道 H 桥）
- 工作温度范围：-25℃ ~ +85℃
- 封装：SOP-8（便于 PCB 贴装与批量生产）
- 集成 FET：是（简化外围元件，缩小系统尺寸）
三、主要特点
- 宽电压工作范围，支持从低压到中压的直流电机供电。
- 低静态电流（1mA），在待机或空载时降低系统总体功耗。
- 集成功率 MOSFET，减少外部元件数量与 PCB 占用空间。
- 导通电阻较低（58mΩ/71mΩ），在相同电流下降低功耗和发热，提高效率。
- 工业级工作温度覆盖常见应用场景（-25℃ 至 +85℃）。
- SOP-8 封装，适合现有 SMT 工艺与常规散热设计。
四、典型应用场景
- 小型移动机器人与轮式驱动单元
- 玩具、电动模型与遥控设备
- 家电小电机（如风扇、泵）驱动
- 门锁、舵机前端驱动与微型执行机构
- 工业控制中低功率电机驱动与样机开发
五、封装与热管理建议
RZ7889-MS 采用 SOP-8 封装，便于装配但热阻相对较高。建议在 PCB 设计时注意散热：
- 在电源与 GND 区域使用大面积铜箔，增加散热面积。
- 对足流经的功率引脚下方开设过孔，配合底层导铜以导走热量。
- 在电源输入端并联适当的去耦电容（低 ESR），抑制瞬态电压尖峰。
- 在连续大电流工作条件下，评估器件结温并采用必要的散热措施或限流策略。
六、设计与使用建议
- 在驱动电机时考虑电流浪涌和启动电流，必要时加软启动或限流电路，保护驱动器与电源。
- 虽然内部集成 FET 并具备体二极管，但在高能回馈场景（如带制动的电机）建议增加能量回收或能量吸收元件（吸收电阻或缓冲电容）。
- 合理选择 PCB 布局，缩短电源回路路径，减小寄生电感，改善 EMI 与开关过冲。
- 在系统级评估中，依据实际负载条件确认是否需要外部过流、过温保护或监测电路。
七、优势总结
RZ7889-MS 以其宽电压范围、低待机电流、集成功率 FET 和较低导通电阻，提供了一个体积紧凑且易于集成的单通道马达驱动解决方案。对注重成本、占板面积与功耗的消费与工业应用，RZ7889-MS 能有效简化设计、缩短开发周期并提升系统可靠性。购买与替代件信息请咨询 MSKSEMI 授权经销商或技术支持。
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