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ST TIP122
Configuration
1 options
Configuration
25+
Available for RFQ
Technical data
Product details
20
specifications
Core information
- Product name
- ST(STMicroelectronics) TIP122
- Type
- ST
- Unit
- Electronic Component
- Minimum package
- 1000 管
Technical parameters
- Electronic Component
- Electronic Component
- Electronic Component
- Electronic Component
- Electronic Component
- ST(STMicroelectronics)
- Electronic Component
- TIP122
- Electronic Component
- 1
- Package
- TO-220
- Type
- NPN
- Electronic Component
- Darlington Transistor
- Electronic Component
- 2g
- Electronic Component
- 1
- Electronic Component
- BM0000283979
- Power Dissipation(Pd)
- 65W
- Electronic Component
- Electronic Component
- Electronic Component
- 1000
- Collector Current(Ic)
- 5A
- Current (h FE)
- 1000
For datasheets, package documents, compatible-part guidance, or other technical resources, contact WMSIC customer service. Availability is confirmed case by case.
TIP122 产品概述
一、产品基本信息
TIP122是一款由意法半导体（STMicroelectronics）生产的NPN型达林顿晶体管，采用TO-220-3封装，主要用于高功率和高增益的开关和放大应用。该晶体管具有较高的电压和电流承载能力，额定功率高达2W，集电极电流（Ic）可达到5A，集射极击穿电压（Vce）为100V，适合于各种工业及消费类电子产品的应用。
二、结构与工作原理
达林顿晶体管是一种由两个NPN晶体管串联组成的放大器配置。由于其独特的结构，达林顿管可以提供极高的电流增益（hFE），在TIP122中，最小直流电流增益为1000，在集电极电流3A和Vce为3V时，可以达到这个值。这一特性使得TIP122非常适合于低功率信号控制高功率负载的场合，如马达驱动、继电器驱动等。
三、关键参数
- 额定功率：TIP122的额定功率为2W，能够处理相对较大的热量，适合高负载应用。
- 集电极电流（Ic）：最大集电极电流为5A，电流允许范围广泛，适合多种功率级别的驱动需求。
- 集射极击穿电压（Vce）：最大集射极击穿电压为100V，使得TIP122可以处理较高的电压应用场合。
- DC电流增益（hFE）：在一定条件下，达到1000的标称值，使得TIP122在小信号输入时能够有效控制大信号输出。
- 饱和压降（Vce(sat)）：在高电流（5A）和低基极电流（20mA）下，最大饱和压降为4V，需在设计时充分考虑以降低功耗和热量。
四、工作环境
TIP122的工作温度范围广泛，最高可达150°C（TJ），使其在极端条件下也能可靠工作。其集成设计适用于绝大多数电路需求，尤其是在空间紧张的应用中，TO-220-3封装提供了良好的散热性能。
五、典型应用
- 电机驱动：在电动机控制电路中，TIP122可以作为开关元件，驱动小型电动机，实现负载控制。
- 继电器驱动：可以用来控制和驱动继电器，适用于各种工业控制和家电电路。
- 灯光控制：用于自动灯光控制，如调光器或定时器系统。
- 音频放大：由于其高增益特性，TIP122可以作为小信号放大器，提升音频频率范围内的信号。
- 低功耗电源控制：在开关电源设计中，能有效地启用和禁用电源输出。
六、总结
TIP122 NPN达林顿晶体管以其出色的电流增益和高功率特性，成为众多电气设计中不可或缺的元件。无论是在家电、工业控制还是其他高功率应用中，TIP122都展现了极高的性能和可靠性。凭借ST半导体的技术支持，TIP122的应用潜力将继续拓展，为电子产品的设计与开发提供了强大的动力支持。
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