WMSIC Electronic Components

SM4840PRL

ModelSM4840PRL
PackageSOP-8
BrandSPS
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
SPS SM4840PRL
Type
SPS
Minimum package
3000

Technical parameters

Electronic Component
SPS
Electronic Component
SM4840PRL
Electronic Component
1
Package
SOP-8
Electronic Component
2 N
Electronic Component
MOSFET
Electronic Component
0.175g
Electronic Component
1
Electronic Component
BM0230043997
Operating Temperature
55℃~+150℃
Power Dissipation(Pd)
2W
Electronic Component
3000
Voltage(Vdss)
40V
Capacitor(Ciss)
629pF
Gate (Qg)
4.3nC@10V
Resistor(RDS(on))
26.6mΩ@10V

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

SM4840PRL 产品概述

一、产品简介

SM4840PRL 是美国源芯(SPS)推出的一款双通道 N 沟道场效应管(Dual N‑MOSFET),封装为 SOP‑8。每通道额定漏源电压为 40V,连续漏极电流 6A,适用于中小功率开关和负载驱动场合。单器件内置两颗 N 沟道晶体管,便于板级布局和成组应用。

二、主要参数

  • 数量:2 个 N 沟道 MOSFET(同封装双通道)
  • Vdss:40 V
  • 连续漏极电流 Id:6 A(单通道)
  • 导通电阻 RDS(on):26.6 mΩ @ Vgs=10 V, Id=6 A
  • 最大耗散功率 Pd:2 W
  • 阈值电压 Vgs(th):约 1.5 V
  • 总栅极电荷 Qg:4.3 nC @ Vgs=10 V
  • 输入电容 Ciss:629 pF @ Vds=15 V
  • 反向传输电容 Crss:51 pF @ Vds=15 V
  • 工作温度范围:-55 ℃ ~ +150 ℃
  • 封装:SOP‑8
  • 品牌:SPS(美国源芯)

三、主要特性与优势

  • 低 RDS(on)(26.6 mΩ@10V)在 40V 等级中表现优异,有利于减小导通损耗与发热;
  • 较小的栅极电荷(4.3 nC)在 10V 驱动下切换损耗可控,适合频率中等的开关应用;
  • 双通道 SOP‑8 封装便于成对驱动、实现推挽或半桥配置,同时利于 PCB 布局和节省板面积;
  • 宽温工作范围和良好的耐受性,适合工业级环境。

四、典型应用场景

  • 开关电源(低压 DC‑DC 变换器)次级侧功率开关;
  • 电池保护与电源管理中的断电开关与负载开关;
  • 小型电机驱动、继电器/灯驱动和负载开关控制;
  • 家电与工业控制板卡中需要 40V 等级单元的场合。

五、驱动与 PCB 热设计建议

  • 为达到标称 RDS(on),建议 Vgs 采用 10 V 驱动;若采用逻辑电平驱动注意 RDS(on) 会上升;
  • 由于 Qg=4.3 nC,驱动器需提供瞬态电流以实现快速开关,防止开关损耗与热量累积;
  • SOP‑8 封装散热能力有限,建议在 PCB 上配备充足的铜箔、散热焊盘和必要的通孔散热;大电流应用应考虑外部散热或更低 RDS(on) 的封装替代;
  • 缩短栅极回路的布局,增加去耦电容,使用阻尼或 RC 闭合以减少振铃和 EMI。

六、可靠性与使用注意

  • 工作温度覆盖工业级需求(-55~150 ℃),长期工作应考虑结温与散热裕度;
  • 注意静电防护与在制程中的 ESD 管理,栅极对静电敏感;
  • 在并联使用或组成桥式结构时,需匹配 RDS(on) 与门电容,以保证均流与同步切换。

七、选型建议与替代

若系统要求更低的导通损耗或更高的功率耗散,应考虑更低 RDS(on) 或更大功耗封装(如 SO‑8 PowerPAK、DPAK 等)。在要求逻辑电平驱动(5V/3.3V)且低阻抗的场景,需验证在低 Vgs 下的 RDS(on) 性能。

八、订购信息

型号:SM4840PRL
品牌:SPS(美国源芯)
封装:SOP‑8,双 N 沟道 MOSFET(2 个通道)

以上为 SM4840PRL 的概要介绍与应用建议,便于电路设计与系统选型。需要更详细的电气特性曲线或封装机械图纸,可参考厂商规格书或联系供应商获取完整资料。

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