WMSIC Electronic Components

ALLEGRO A4959GLPTR-T A4959GLPTR

ModelA4959GLPTR-T
PackageTSSOP-24-EP
BrandALLEGRO
Price Price on request Electronic component prices change quickly with market supply and demand. Please refer to the latest WMSIC quotation for current pricing.
Configuration
1 options
Configuration 22+

Available for RFQ

Technical data

Product details

17 specifications

Core information

Product name
ALLEGRO A4959GLPTR-T
Type
ALLEGRO
Minimum package
4000 圆盘

Technical parameters

Electronic Component
Electronic Component
Electronic Component
ALLEGRO
Electronic Component
A4959GLPTR-T
Electronic Component
1
Package
TSSOP-24-EP
Electronic Component
RFAmplifier
Electronic Component
1g
Electronic Component
1
Features
Low Power
Electronic Component
BM0258749066
Operating Temperature
40℃~+105℃
Operating Voltage
5.5V~50V
Electronic Component
Electronic Component
Electronic Component
4000

For datasheets, package documents, compatible-part guidance, or other technical resources, contact WMSIC customer service. Availability is confirmed case by case.

A4959GLPTR-T 产品概述

一、产品简介

A4959GLPTR-T 是 ALLEGRO(美国埃戈罗)推出的一款高集成度直流电机驱动器,面向需要单芯片控制与保护功能的中小功率有刷直流电机应用。器件支持宽电压工作范围 5.5V 至 50V,工作温度覆盖 -40℃ 至 +105℃,封装为 TSSOP-24-EP(带外露散热焊盘),便于系统级散热和高密度 PCB 布局。

二、主要特性

  • 宽电源范围:单电源工作,适配从低压至高压的电机驱动需求(5.5V–50V)。
  • 集成功率开关:器件内部集成高压功率 MOSFET,省去外部功率级,简化系统设计。
  • PWM 调速与逻辑接口:支持外部 PWM 控制与方向/使能等数字控制信号,便于与 MCU 无缝配合。
  • 电流感测与限流:提供电流检测通路与电流限制功能,可实现恒流或限流保护,提升电机与电源安全性。
  • 保护功能完备:常见保护包括过流保护、短路保护、热关断与欠压锁定等,增强系统鲁棒性。
  • 诊断输出:具备故障/状态指示引脚,方便软件层面检测与响应故障事件。
  • 低导通电阻:优化导通损耗以降低发热,提高能效与连续驱动能力。

三、典型应用

  • 工业自动化:直线驱动器、定位台、小型减速电机驱动。
  • 消费与家电:风扇、电动工具、电动窗帘等中低功率电机控制。
  • 机器人与移动平台:舵机、车轮驱动与执行机构。
  • 汽车电子(非明确认证场景):满足 -40℃ 至 +105℃ 的工作温度,适合在广泛温度环境中使用的电机控制模块(具体车规级要求请参照厂商认证信息)。

四、典型电路与布局建议

  • 电源滤波:靠近器件的电源输入处放置低 ESR 的隔离/旁路电容,以抑制瞬态与开关噪声。
  • 电流检测:电流取样电阻应靠近器件引脚布局,走线短且宽以保证测量精度与热耗散。
  • PWM 与逻辑接口:PWM 信号应具有清晰的上升/下降沿,必要时加 RC 滤波或光耦隔离以降低干扰。
  • 布局与接地:利用 TSSOP-24-EP 的外露散热焊盘(EP)通过多通过孔连接至内部接地层或散热铜箔,提高热传导效率;功率回路走线短而粗,信号地与功率地合理分离并在一处回流。

五、热管理与可靠性

  • 散热设计:由于内部集成 MOSFET,长期大电流工作会产生热量,推荐在 PCB 上设计充足的散热铜面积与过孔阵列以导出热量,必要时搭配散热片或金属底座。
  • 温度保护:内置热关断机制在异常高温时保护器件与负载,但应通过良好散热减少触发频率以延长寿命。
  • EMC 与滤波:驱动电机的开关波形会产生干扰,应在输入端与输出端根据系统要求加入滤波网络与共模抑制措施,保证整机电磁兼容性。

六、封装与采购信息

A4959GLPTR-T 提供 TSSOP-24-EP 封装,外露焊盘便于焊接与热管理。选型时请核对生产批次与原厂资料,确认是否满足具体的环境与可靠性认证需求(如需车规级认证请向厂商索取相应文件)。

总结:A4959GLPTR-T 是一颗功能完备、适配性强的直流电机驱动芯片,凭借宽电压范围、完整保护与集成功率级,非常适合中小功率电机控制场景。在实际应用中,合理的 PCB 散热与滤波设计对发挥器件性能与延长可靠寿命至关重要。若需更详细的电气参数、典型应用电路或参考设计,请参阅 ALLEGRO 官方数据手册或提供进一步需求,我可协助查阅并给出设计建议。

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