WMSIC Electronic Components

HGSEMI LM7815CS2/TR LM7815CS2

ModelLM7815CS2/TR
PackageTO-263-2
BrandHGSEMI
Price Price on request Electronic component prices change quickly with market supply and demand. Please refer to the latest WMSIC quotation for current pricing.
Configuration
1 options
Configuration 25+

Available for RFQ

Technical data

Product details

19 specifications

Core information

Product name
HGSEMI LM7815CS2 / TR
Type
HGSEMI
Minimum package
500 圆盘

Technical parameters

Electronic Component
Electronic Component
Electronic Component
HGSEMI
Electronic Component
90uV
Electronic Component
LM7815CS2/TR
Electronic Component
1
Package
TO-263-2
Electronic Component
Linear Regulator(LDO)
Electronic Component
2.484g
Electronic Component
1
Electronic Component
BM0264801319
Operating Temperature
0℃~+125℃@(Ta)
Operating Voltage
35V
Output
Electronic Component
Output Voltage
15V
Output Current
1.5A
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.

LM7815CS2/TR 产品概述

LM7815CS2/TR(HGSEMI/华冠)是一款固定输出的正极线性稳压器,输出电压为15V,最大输出电流1.5A,适用于电视机、收录机、各类电子仪器及一般电源供给场景。器件采用 TO-263-2(SMD)封装,亦有 TO-220 可选,便于通过表面贴装或通孔安装满足不同平台的散热与组装需求。

一、主要电气规格

  • 输出极性:正极(Fixed Positive Output)
  • 工作电压(最大输入电压):35V
  • 输出电压:15V(固定型)
  • 输出电流:1.5A(连续)
  • PSRR:54dB @ 120Hz(电源纹波抑制比)
  • 输出噪声:约90µV(典型值)
  • 输出通道:单通道
  • 工作温度范围:0℃ ~ +125℃(Ta)

二、保护与可靠性特性

  • 短路保护:内置电流限制,当输出短路或过载时可限制输出电流,保护器件与负载。
  • 热关断:器件在过热时自动关闭输出,待温度下降后恢复,防止热失效。 以上保护机制使 LM7815CS2/TR 在实际应用中具有较好的鲁棒性,适合存在瞬时过载或热应力的场合。

三、性能说明与计算

  • 纹波抑制(PSRR)54dB @120Hz:表示在电源线上叠加的工频纹波在输出端被衰减约54dB(线性约501倍),例如输入侧有1Vpp的120Hz纹波,理想情况下输出端约为2mVpp。
  • 噪声约90µV:适合对低噪声有一定要求的模拟或信号处理电路。
  • 功率耗散估算:Pd ≈ (Vin - 15V) × Iout。若输入为30V、输出1.5A,则Pd ≈ (30-15)×1.5 = 22.5W,需良好散热设计(大铜面或外加散热片)。

四、封装与散热建议

  • 封装:TO-263-2(SMD)为表面贴装选择,适合SMT生产;另有 TO-220 提供通孔安装及外接散热片方案。
  • 散热建议:
    • 在高压差或接近1.5A工作条件下必须考虑散热,扩大 PCB 铜箔面积并布置散热铜垫与通孔。
    • 若使用 TO-263-2,建议在底层布设多孔热通并配以大面积散热铜箔;必要时采用外接散热片或风冷。
    • 在设计时按最大功耗计算结温并留有裕量,避免触及热关断门槛。

五、典型外围与布局建议

  • 输入/输出电容:为确保稳定与响应性能,推荐在稳压器输入端并联 0.33µF(陶瓷)到接近引脚,输出端并联 0.1µF(陶瓷)及适当的电解电容(例如 10µF~100µF)以改善瞬态响应与降低低频纹波。
  • 布局要点:
    • 输入、输出电容靠近引脚放置,减小引线感抗。
    • 接地应采用单点或短回路,避免将敏感信号地与大电流地混接。
    • 输出及散热铜箔尽量宽且厚,必要时采用多层铜通孔散热通道。

六、典型应用领域

  • 电视机/显示设备电源
  • 音响与收录机电源
  • 仪器仪表与控制系统的中功率稳压供电
  • 各类需要稳定15V、低噪声电源的工业与民用电子设备

LM7815CS2/TR 以其稳定的输出、完善的保护特性和良好的纹波抑制,适合于需要可靠线性稳压供电且对低噪声有一定要求的场合。在设计时务必按最大输入电压与预计输出电流评估功耗并做好散热设计,以确保长期可靠运行。若需更详细的极限参数或封装尺寸,请参照 HGSEMI(华冠)提供的完整产品数据手册。

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