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ALLEGRO A4985SESTR-T A4985SESTR
Configuration
1 options
Configuration
21+
Available for RFQ
Technical data
Product details
19
specifications
Core information
- Product name
- ALLEGRO A4985SESTR-T
- Type
- ALLEGRO
- Minimum package
- 1500 圆盘
Technical parameters
- Electronic Component
- Electronic Component
- Electronic Component
- ALLEGRO
- Electronic Component
- A4985SESTR-T
- Electronic Component
- 1
- Package
- QFN-24-EP(4x4)
- Electronic Component
- Stepper Motor Driver IC
- Electronic Component
- 0.174g
- Electronic Component
- 1
- H
- 2
- Electronic Component
- BM0000068387
- Resistor
- 700mΩ
- Operating Temperature
- 20℃~+85℃
- Voltage
- 3V~5.5V
- Electronic Component
- 8；2；1；4
- Output Current
- 1A
- Integrated Switch
- Electronic Component
For datasheets, package documents, compatible-part guidance, or other technical resources, contact WMSIC customer service. Availability is confirmed case by case.
A4985SESTR-T 产品概述
A4985SESTR-T 是一款由美国艾戈罗（Allegro MicroSystems）生产的高性能步进电机驱动芯片，属于其电机驱动系列，专为各类步进电机应用而设计。该芯片采用集成化设计，提供控制和功率级功能，为电子工程师和设备制造商提供了一种便捷且高效的解决方案，以实现高精度和高效能的电机驱动。
技术参数
A4985SESTR-T 的工作电压范围为 8V 至 35V，适合多种电机应用场景。芯片的供电电压为 3V 至 5.5V，符合多种逻辑电平要求，便于与微控制器及其他数字电路的接入。其输出电流可达到 1A，非常适合中小型步进电机的驱动。
该芯片采用双极性步进电机驱动技术，具有多种步进分辨率选择，包括全步进（1）、半步进（1/2）、四分之一步进（1/4）和八分之一步进（1/8）。这种灵活的分辨率设置使得 A4985SESTR-T 能够进行精细的运动控制，满足不同应用需求，尤其适合在对精度要求较高的场景中使用，如印刷设备、机器人以及自动化设备。
输出配置与接口
A4985SESTR-T 采用半桥输出配置（总共四个半桥），该设计能够高效地驱动步进电机的每个相位。此芯片还提供了逻辑接口，使其能够与各种控制器兼容，便于集成到现有的系统或新开发的解决方案中。其设计保障了良好的信号传输，降低了系统复杂性。
温度与封装
A4985SESTR-T 的工作温度范围为 -20°C 至 +150°C（结温），使其在恶劣环境条件下仍能可靠工作。这种高温耐受能力使得该产品特别适合用于诸如工业自动化、户外设备等领域。
在封装方面，A4985SESTR-T 采用的是 QFN-24（4x4 mm）封装，采用表面贴装技术（SMD），不仅减少了PCB占用空间，还提高了热性能和电气性能。紧凑的设计使得其在空间受限的应用中特别受欢迎，有利于实现更多功能的集成。
应用场景
A4985SESTR-T 的广泛应用范围使其成为了多种行业的理想选择。具体应用包括但不限于：
- 打印机：能够精确控制步进电机，为打印头的定位提供高精度的支持。
- 机器人技术：适用于各种机器人驱动系统，实现复杂的运动控制。
- 自动化设备：在生产线，可用于控制传送带及其他自动化装备的动作。
- 家用电器：可用于电动窗帘、投影仪等设备的电机驱动。
- 玩具：为电动玩具提供动力，实现智能化控制。
总结
A4985SESTR-T 以其卓越的性能和灵活性在电机驱动领域中占有一席之地。其高电压和电流设定，结合丰富的步进分辨率选项，极大地提高了行业应用的灵活性和可靠性。无论是在工业、消费电子还是自动化领域，该芯片都能够提供高效且精确的电机控制解决方案，是工程师和设计者在步进电机驱动应用中值得信赖的选择。
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