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HGSEMI LM7815T
Configuration
1 options
Configuration
Date code within 2 years
Available for RFQ
Technical data
Product details
19
specifications
Core information
- Product name
- HGSEMI LM7815T
- Type
- HGSEMI
- Minimum package
- 1000 盒
Technical parameters
- Electronic Component
- Electronic Component
- Electronic Component
- HGSEMI
- Electronic Component
- 90uV
- Electronic Component
- LM7815T
- Electronic Component
- 1
- Package
- TO-220
- Electronic Component
- Linear Regulator(LDO)
- Electronic Component
- 2.734g
- Electronic Component
- 1
- Electronic Component
- BM0227715628
- Operating Temperature
- 20℃~+80℃@(Ta)
- Operating Voltage
- 35V
- Output
- Electronic Component
- Output Voltage
- 15V
- Output Current
- 1A
- Output Type
- Electronic Component
For datasheets, package documents, compatible-part guidance, or other technical resources, contact WMSIC customer service. Availability is confirmed case by case.
LM7815T（HGSEMI 华冠）产品概述
一、产品简介
LM7815T 是华冠（HGSEMI）推出的经典线性固定电压稳压器，输出稳压为 +15V，最大输出电流可达 1A，适用于需要稳定正极电源的各类电子设备。器件采用 TO-220 封装，结构紧凑、安装方便，是开关电源以外常用的线性稳压解决方案。
二、主要特性
- 固定输出：+15V，单路正极输出
- 工作电压（输入端允许值）：最高 35V（注意输入-输出差异导致功耗）
- 输出电流：最大 1A（线性输出，需注意散热）
- 纹波抑制比（PSRR）：54dB @ 120Hz，能有效抑制工频纹波
- 输出噪声：90µV（典型值）
- 内置保护：短路保护、过热（热关断）保护
- 工作环境温度：-20℃ ~ +80℃（Ta）
- 封装：TO-220，便于挂散热片或机箱安装
三、电气参数与使用注意
- 输出精度与温漂依赖生产批次与外部负载，典型电压为 15V。
- 最大输入电压应严格控制不超过器件额定值 35V；输入与输出之间需保持足够差压以保证稳压（典型 Dropout 约 2V~3V，视负载而定）。
- 功耗计算：Pd = (Vin − 15V) × Iout。例如 Vin=30V、Iout=1A 时，器件需耗散约 15W，必须配置合适散热措施以避免进入热关断。
四、热设计与保护说明
LM7815T 内置热关断与限流保护，可在短路或过载状态下限制电流以保护器件和负载。但这些保护不能替代良好的热设计：在大电流或较大 Vin−Vout 差压时，必须使用合适的散热片或风冷；若需要电气隔离安装散热片，应使用绝缘垫片与导热硅脂，并注意螺丝扭矩与绝缘耐压。
五、典型外部元件与连接建议
为确保稳定与抑制振荡，建议在靠近器件输入端并联 0.33µF（陶瓷）或更大电解电容，在输出端并联 0.1µF 陶瓷与 10µF~100µF 电解电容以增强瞬态响应。若电路距离电源滤波器较远，应在输入端增加更大容量的电解电容。
六、常见应用场景
- 工业控制电源与仪表供电
- 模拟前端与传感器供电（低噪声场合）
- 实验室电源与嵌入式系统电源模块
- 小功率通信设备与消费电子备用稳压
七、封装与订购信息
- 封装形式：TO-220（引脚排列通常为：输入、地、输出；散热片与中间引脚连通地）
- 品牌型号：HGSEMI（华冠） LM7815T，订购时请注明封装与批次以获取完整技术手册与管脚图。
总结：LM7815T（HGSEMI）以其稳定的 +15V 输出、较高的 PSRR 与低噪声特性，结合短路与过热保护，非常适合对电源质量、可靠性有要求的线性电源应用。选型时请重点考虑输入电压范围与散热设计，配合适当的去耦电容以获得最佳性能。若需完整电气特性曲线或典型应用电路图，可参考华冠提供的数据手册或联系供应商获取。
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