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UTC ULN2803G-D18-T ULN2803G
Configuration
1 options
Configuration
25+
Available for RFQ
Technical data
Product details
19
specifications
Core information
- Product name
- UTC ULN2803G-D18-T
- Type
- UTC
- Minimum package
- 800 圆盘
Technical parameters
- Electronic Component
- Electronic Component
- Electronic Component
- UTC
- Electronic Component
- ULN2803G-D18-T
- Electronic Component
- 1
- Package
- DIP-18
- Type
- BJT
- Electronic Component
- Darlington Transistor Array
- Electronic Component
- 2.3g
- Electronic Component
- 1
- Channel Count
- Electronic Component
- Electronic Component
- BM69418323
- Operating Temperature
- 40℃~+85℃
- Current(Ir)
- 50uA
- (Vf)
- 2V
- Capacitor(Ci)
- 15pF
- Current(on)
- 0.93mA
For datasheets, package documents, compatible-part guidance, or other technical resources, contact WMSIC customer service. Availability is confirmed case by case.
产品概述：ULN2803G-D18-T
1. 引言
ULN2803G-D18-T是一款来自UTC（友顺）的达林顿晶体管阵列，采用标准的DIP-18封装，专为各种开关应用而设计。它是一种高效的驱动器，适用于电机控制、继电器驱动、LED驱动和其他高电流负载的控制。由于其高输入阻抗和高增益特性，ULN2803G-D18-T非常适合用作数字电路中的驱动接口。
2. 主要特点
- 通道数：该器件包含8个独立的达林顿对，分别作为输出通道，每个通道可以独立控制。
- 封装形式：DIP-18封装使得该元件易于插入标准的电路板，方便在原型制作和量产中的应用。
- 高电流驱动能力：每个输出通道的最大输出电流可达到500毫安，适合驱动各种负载。
- 宽供电电压范围：支持从5V到50V的供电电压，能够满足多种应用场景的需求。
- 集成飞轮二极管：内置的二极管保护使其能够安全地处理感性负载的反向电流，提升了电路的稳定性和寿命。
- 简化电路设计：集成化的设计使得阻抗匹配和电路连接更为简洁，节省了PCB空间。
3. 应用领域
ULN2803G-D18-T广泛用于需要高电流和高电压的场景，包括但不限于：
- 电机驱动：可以直接用于步进电机和直流电机的控制，适用于自动化设备和机器人领域。
- 继电器驱动：通过控制继电器的开启与关闭，该器件可以实现对高功率负载的控制。
- LED驱动：可用于LED灯条、显示屏等需要高电流的照明设备。
- 仪器仪表：在各种仪器的小信号控制中，能够有效驱动外部的高功率组件。
4. 技术规格
- 输入电压：逻辑电平输入，通常为TTL或CMOS兼容的输入。
- 最大输出电流：500mA每通道，共八通道，可达4A的总输出电流。
- 最大输出电压：50V的输出电压，适合多种高电压环境。
- 环境温度范围：工作温度范围为-40°C至+85°C，能够适应各种工作条件。
5. 电路连接示例
在实际应用中，ULN2803G-D18-T的输入端可以直接连接到微控制器或其他数字信号源的输出端，而输出端则连接到相应的负载。为了确保稳定的工作，在输入端和负载端需要根据具体负载特性配置合适的电阻、电容等元件。
6. 总结
总体来说，ULN2803G-D18-T是一款功能强大、应用广泛的达林顿晶体管阵列，凭借其高电流输出、宽电压范围以及集成的保护功能，成为各种电子设计中不可或缺的元件之一。无论是在业余电子制作还是专业产业应用，ULN2803G-D18-T均能提供可靠的解决方案，是您设计中理想的驱动器选择。
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