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TI ULN2003AN
Configuration
1 options
Configuration
26+
Available for RFQ
Technical data
Product details
20
specifications
Core information
- Product name
- TI(Texas Instruments) ULN2003AN
- Type
- TI
- Unit
- Electronic Component
- Minimum package
- 1000 管
Technical parameters
- Electronic Component
- Electronic Component
- Electronic Component
- Electronic Component
- Electronic Component
- TI(Texas Instruments)
- Electronic Component
- ULN2003AN
- Electronic Component
- 1
- Package
- PDIP-16
- Type
- BJT
- Electronic Component
- Darlington Transistor Array
- Electronic Component
- 1.84g
- Electronic Component
- 1
- Channel Count
- Electronic Component
- Electronic Component
- BM69417737
- Operating Temperature
- 20℃~+70℃
- Current(Ir)
- 50uA
- (Vf)
- 1.7V
- Capacitor(Ci)
- 15pF
For datasheets, package documents, compatible-part guidance, or other technical resources, contact WMSIC customer service. Availability is confirmed case by case.
ULN2003AN 产品概述
1. 产品简介
ULN2003AN 是由德州仪器（Texas Instruments）制造的一款高性能 NPN 达林顿晶体管阵列，封装类型为 16-PDIP（双列直插封装，16 脚）。该产品专为驱动继电器和螺线管而设计，适用于多种实际应用场景，特别是在需要高电流驱动的情况下表现优异。
2. 基本特性
- 晶体管类型: ULN2003AN 是 7 通道 NPN 达林顿型晶体管阵列，能够提供给各个通道高达 500mA 的集电极电流（Ic）输出。
- 电压特性: 该产品具有高达 50V 的集射极击穿电压（Vce_max），保证了在高电压环境中可靠工作。其在 500µA 和 350mA 的电流下的 Vce 饱和压降最大为 1.6V，确保功率损耗较低。
- 输入输出: 产品的输入类型为反相，这意味着输入信号为高时，输出为低，非常适合与微控制器等数字电路配合工作。同时，ULN2003AN 的输入输出比率为 1:1，意味着每个输入通道都能有效对应一个输出通道，便于操作。
3. 应用领域
由于其出色的电流处理能力和较高的工作电压等级，ULN2003AN 可广泛应用于：
- 继电器驱动器: 通过其高输出电流，适合驱动各种类型的继电器。
- 步进电机控制: 可以与步进电机结合，应用于自动化设备和机器人。
- 螺线管驱动器: 特别适用于需要快速开关响应的场合，如电磁阀等。
- LED 驱动: 该产品可用于为 LED 提供必要的电流，适合大功率 LED 照明应用。
4. 性能参数
- 工作温度范围: ULN2003AN 的工作温度范围为 -20°C 到 70°C，适合多种工业环境。对于特定应用，其可以在 -40°C 到 70°C 的更广泛温度范围内稳定运行，增强了产品的适用性。
- 集电极截止电流 (I_CEO): 产品的集电极截止电流最大为 50µA，确保低功耗待机状态下的表现。
- 通孔安装: 该产品为通孔安装设计，便于在各种 PCB 板上进行组装。
5. 封装与散热
ULN2003AN 采用 16-PDIP 封装，外形小巧且适合手动和自动焊接。基于其达林顿结构，ULN2003AN 的晶体管对输入信号具有较高的增益和耐高电压能力，大大减少了散热问题，提升了产品的稳定性。这种封装形式便于与其他元件集成，适合在复杂的电路板上使用。
6. 设计建议
在进行产品设计时，建议在每个输出通道上并联一个二极管，以防止因感性负载产生的电动势对驱动晶体管造成损害。适当的散热措施也是设计时的重要考虑，以维持元件在安全工作范围内运行，确保其长期稳定性。
7. 结论
综合而言，ULN2003AN 是一款功能强大、应用广泛的晶体管阵列，适合于各种数字和模拟电路的高电流驱动需求。凭借其优异的电流处理能力和可靠的性能，ULN2003AN 是各类自动化和控制系统中理想的选择。对于需要实现高效低功耗控制的工程师来说，ULN2003AN 提供了最佳的解决方案，满足现代电子产品的设计需求。
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