WMSIC Electronic Components

LRC LBSS84DW1T1G

ModelLBSS84DW1T1G
PackageSC-88
BrandLRC
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 Date code within 2 years

Available for RFQ

Technical data

Product details

19 specifications

Core information

Product name
LRC LBSS84DW1T1G
Type
LRC
Minimum package
3000

Technical parameters

Electronic Component
LRC
Electronic Component
LBSS84DW1T1G
Electronic Component
1
Package
SC-88
Electronic Component
1 P
Type
P
Electronic Component
MOSFET
Electronic Component
0.014g
Electronic Component
1
Electronic Component
BM0263673585
Operating Temperature
55℃~+150℃
Power Dissipation(Pd)
380mW
Electronic Component
3000
Voltage(Vdss)
50V
Capacitor(Ciss)
42pF
Output Capacitor(Coss)
20pF

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

LBSS84DW1T1G 产品概述

一、概况

LBSS84DW1T1G 是乐山无线电(LRC)出品的一款单片 P 沟道 MOSFET,采用 SC-88 小封装,适合对面积和外形要求严格的便携式及信号级电源管理场合。器件主要参数:漏源电压 Vdss = 50V,连续漏极电流 Id = 130mA,标称导通电阻 RDS(on) = 10Ω(典型测量条件下),耗散功率 Pd = 380mW,门极阈值 Vgs(th) ≈ 2V,栅极电荷 Qg = 6nC,输入电容 Ciss = 42pF,反向传输电容 Crss = 4pF,输出电容 Coss = 20pF。工作温度范围为 −55℃ 至 +150℃。

二、主要特性

  • 额定耐压 50V,适合中低电压系统的高端开关或保护应用;
  • 低速、小电流场合的高侧开关能力,连续电流 130mA 级别;
  • RDS(on) 约 10Ω,导通损耗适中;举例:在 130mA 时导通损耗约为 I^2·R ≈ 0.13^2·10 ≈ 0.169W,低于器件 Pd 标称值,但需考虑封装热阻与环境导热;
  • Qg = 6nC 和 Ciss = 42pF 表明门极驱动能耗和开关瞬态能较小,适合由 MCU 或逻辑电平直接驱动(注意 P 沟道门极需要负向驱动与逻辑电平匹配);
  • 小型 SC-88 封装,便于高密度 PCB 布局。

三、典型应用场景

  • 便携式设备中低压点的高侧开关与电池断开;
  • 电源反接保护与负载切换(低至中等电流);
  • 信号级模拟开关、复位/断电控制;
  • 电池管理、便携充电器、智能传感器模块等对体积和成本敏感的场合。

四、设计与使用建议

  • 高侧开关接法:将 MOSFET 源极接电源正,漏极接负载正端,门极由 MCU 或电平驱动器拉向地以导通;注意门源电压 Vgs 需在器件允许范围内(不能超过制造商规定的绝对 Vgs 限值),并在导通与关断时避免剧烈振铃。
  • 热设计:器件 Pd=380mW,封装散热能力有限。若持续工作接近最大额定电流,应通过加大铜箔面积或使用散热垫增强散热,并按热阻随温度上升进行功率降额。
  • 开关速度与驱动:Qg=6nC,若需要较高开关频率,应确保驱动器能提供足够电流以缩短开关时间,同时注意由 Crss 引起的米勒效应可能影响门极电压。
  • PCB 布局:门极、源极和漏极走线应尽量短、粗;在高开关瞬态场合加入门极电阻与 RC 消抑网络以抑制振铃;对 ESD 敏感器件,组装与搬运时注意静电防护。

五、封装与采购信息

  • 封装:SC-88(小型表贴);
  • 数量:1 片;
  • 品牌:LRC(乐山无线电);
  • 适用场景:需低占板面积、在 50V 级别下进行低电流开关控制的电子产品。

总结:LBSS84DW1T1G 以其 50V 耐压、小体积与适中导通特性,适合体积受限的低功率高侧开关与保护应用。选型时应重点关注热管理与门极驱动要求,确保在目标工作点有足够的余量与可靠性。

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