WMSIC Electronic Components

ElecSuper ESN4485

ModelESN4485
PackagePDFN3x3-8L
BrandElec Super
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
Elec Super ESN4485
Type
ELECSUPER
Minimum package
5000 圆盘

Technical parameters

Electronic Component
Electronic Component
Electronic Component
ELECSUPER
Electronic Component
ESN4485
Electronic Component
1
Package
PDFN3x3-8L
Electronic Component
1 P
Type
P
Electronic Component
MOSFET
Electronic Component
0.059g
Electronic Component
1
Electronic Component
BM0257489142
Operating Temperature
55℃~+150℃
Power Dissipation(Pd)
18W
Electronic Component
Electronic Component
Electronic Component
5000
Voltage(Vdss)
40V

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

ESN4485 产品概述

一、概述

ESN4485 是 ElecSuper(静芯微)推出的一款高性能 P 沟道功率 MOSFET,额定漏源电压 40V,适合中低压高侧开关与保护电路。器件在小型 PDFN3x3-8L 封装下提供较低的导通电阻和较好的开关性能,适用于电池供电、负载切换和逆向保护等场合。

二、主要规格(典型/关键参数)

  • 类型:P 沟道 MOSFET
  • 漏源电压 Vdss:40V
  • 连续漏极电流 Id:34A(器件极限/典型值,实际应用受散热限制)
  • 导通电阻 RDS(on):13 mΩ @ |Vgs| = 10V(典型)
  • 阈值电压 Vgs(th):约 1.6V(测量条件 250µA)
  • 总栅极电荷 Qg:42 nC @ 10V
  • 输入电容 Ciss:2.5 nF @ 20V
  • 反向传输电容 Crss:180 pF @ 20V
  • 功耗 Pd:18 W(片上最大耗散,受封装和PCB散热影响)
  • 工作温度范围:-55℃ ~ +150℃
  • 封装:PDFN3x3-8L

三、关键性能亮点

  • 低导通电阻(13 mΩ)在高侧或低压差负载下可显著降低导通损耗,提升效率。
  • 比较高的连续电流能力(名义 34A)配合小封装在空间受限的应用中仍能提供良好电流承载能力。
  • 较大的栅极电荷(42 nC)与中等输入电容(2.5 nF)表明在高频开关时需要考虑驱动能力与开关损耗的平衡。
  • 宽工作温度与较高功耗能力,适用于工业与消费类环境。

四、典型应用场景

  • 电池管理与高侧负载开关(便于在正极侧直接断开负载)
  • 逆向连接保护(与控制电路配合构成低压降保护)
  • 电源路径选择与负载切换电路
  • 便携式设备、通信设备和工业控制中的开关元件

五、驱动与布局建议

  • 由于为 P 沟道器件,需在栅极相对于源极施加负压(|Vgs|)以导通;RDS(on) 指标在 |Vgs|≈10V 时可达标。
  • Qg 较大时建议使用低阻抗驱动器或在驱动端并联合适阻值的栅极电阻,避免驱动器输出过流或开关过慢导致开关损耗上升。
  • PCB 布局应保证漏极/源极走线尽量宽短,提供充足的铜面积与热沉路径;必要时在底层使用过孔导热到大面积散热层。
  • 在开关快速切换时,注意 Crss 导致的 Miller 效应,可通过合适的栅极电阻和缓冲驱动策略进行抑制。

六、选型与使用注意事项

  • 器件标称连续电流 34A,但实际允许的连续电流受封装散热与PCB设计影响,设计时应参考完整数据手册中的 SOA 与温升曲线并留有裕量。
  • Vgs 阈值与导通所需电压需根据系统电平设计,若由 MCU 直接驱动必须确认可提供足够的 |Vgs|。
  • 在高频开关或大电流应用中,建议做热仿真并加设计保护(过温、过流)以延长可靠性。

七、封装与订购信息

  • 型号:ESN4485
  • 品牌:ElecSuper(静芯微)
  • 封装:PDFN3x3-8L
  • 可按单个或批量采购,具体封装、最小订购量与供货信息请联系供应商或参考完整技术资料。

如需更详细的参数曲线(热阻、SOA、开关损耗 vs 频率 等)或参考电路示例,可提供器件数据手册以便做进一步的设计匹配与仿真验证。

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