WMSIC Electronic Components

Slkor BSP75N

ModelBSP75N
PackageSOT-223
BrandSLKOR
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
Slkor BSP75N
Type
SLKOR
Minimum package
4000 圆盘

Technical parameters

Electronic Component
Electronic Component
Electronic Component
SLKOR
Electronic Component
BSP75N
Electronic Component
1
Package
SOT-223
Type
Switch
Electronic Component
Power Electronic Switch
Electronic Component
0.2g
Electronic Component
1
Channel Count
1
Features
Load
Electronic Component
BM0257340825
Resistor
385mΩ
Operating Temperature
40℃~+150℃
Operating Voltage
0V~10V
Current
1.1A

For datasheets, package documents, compatible-part guidance, or other technical resources, contact WMSIC customer service. Availability is confirmed case by case.

BSP75N 产品概述

一、产品概述

BSP75N 是萨科微(Slkor)推出的一款单通道低侧功率电子开关,采用 SOT-223 封装,面向中小功率负载控制场景设计。器件支持 0V~10V 的工作电压范围,最大连续导通电流 1.1A,导通电阻(RDS(on))为 385mΩ,工作温度范围为 -40℃ 到 +150℃。内置过热保护(OTP)、过压保护(OVP)、短路保护(SCP)和过流保护(OCP),便于在实际系统中提高可靠性和安全性。

二、主要参数

  • 类型:低侧开关(单通道)
  • 最大连续电流:1.1 A
  • 工作电压:0 V ~ 10 V
  • 导通电阻:385 mΩ(典型)
  • 工作温度:-40 ℃ ~ +150 ℃
  • 封装:SOT-223
  • 典型保护:OTP / OVP / SCP / OCP

示例功耗估算:在最大连续电流 1.1A 下,导通损耗约为 P = I^2·R ≈ 1.1^2 × 0.385 ≈ 0.47W,系统设计时应考虑该功耗及散热能力。

三、保护特性与可靠性

BSP75N 集成多重保护机制:

  • 过热保护(OTP):在结温或封装温度异常升高时限制或切断输出,防止器件损坏;
  • 过压保护(OVP):针对输入或被测侧发生异常高压时进行限流或断开;
  • 短路保护(SCP):快速响应短路事件,降低坏件风险;
  • 过流保护(OCP):在超过设定电流阈值时进行限流,保障系统与负载安全。

这些保护功能有助于在复杂工况、瞬态或故障时提高系统容错能力,但不等同于替代良好的电路保护设计:对于感性负载仍建议使用外部吸收元件(如快恢复二极管、TVS 或 RC 吸收网络)。

四、热管理与封装建议

SOT-223 封装热阻适中,适合小型 PCB 上使用。为保证稳定工作:

  • 在器件底部和散热引脚处铺设较大面积的铜箔,并与地或散热平面热连接;
  • 对于长时间接近 1A 级电流工作,应进行热仿真与实测,必要时增加散热片或多层大铜面积;
  • 在布局时确保热回流路径通畅,避免将敏感器件紧邻高温区。

五、典型应用与使用注意事项

典型应用场景包括:LED 驱动开关、继电器/电磁阀驱动、低压直流负载开关、便携设备电源管理、小功率马达或风扇控制等。使用要点:

  • 驱动感性负载时并联续流或吸收二极管,避免因感性返回电压触发保护或损坏;
  • 加入输入去耦和负载侧滤波,抑制瞬态与干扰;
  • 考虑开启/关断的浪涌电流(inrush current),必要时使用软启动电路或限流保护;
  • 在设计中预留保护复位或故障指示机制,便于故障诊断。

六、封装与采购信息

  • 品牌:Slkor(萨科微)
  • 型号:BSP75N
  • 封装:SOT-223,适合通用贴片装配和手工焊接调试

总结:BSP75N 是一款集成多重保护的低侧单通道功率开关,适用于 0~10V 低压系统的小功率负载控制。合理的热设计与外部抑制电路配合,可在工业控制、消费电子与电源管理领域实现稳健应用。如需具体电气时序、门限值和详细引脚定义,请参考厂家数据手册以完成最终电路与可靠性评估。

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