WMSIC Electronic Components

WILLSEMI WPM2049-3/TR WPM2049

ModelWPM2049-3/TR
PackageDFN1006-3L
BrandWILLSEMI
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
WILLSEMI WPM2049-3 / TR
Type
WILLSEMI
Minimum package
10000 圆盘

Technical parameters

Electronic Component
Electronic Component
Electronic Component
WILLSEMI
Electronic Component
WPM2049-3/TR
Electronic Component
1
Package
DFN1006-3L
Electronic Component
1 P
Type
P
Electronic Component
MOSFET
Electronic Component
0.009g
Electronic Component
1
Electronic Component
BM0227699513
Operating Temperature
55℃~+150℃
Power Dissipation(Pd)
310mW
Electronic Component
Electronic Component
Electronic Component
10000
Voltage(Vdss)
20V

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

WPM2049-3/TR 产品概述

一、产品简介

WPM2049-3/TR 是 WILLSEMI(韦尔)推出的一款小封装 P 沟道场效应晶体管,封装为 DFN1006-3L,适合空间受限的便携与消费类电子设计。该器件在 20V 漏源电压下提供可靠的高侧开关和反向保护功能,适用于低电压电源管理与开关应用场景。

二、主要电气参数

  • 类型:P 沟道 MOSFET(单只)
  • 漏源耐压 Vdss:20 V
  • 连续漏极电流 Id:510 mA
  • 导通电阻 RDS(on):480 mΩ @ Vgs = 4.5 V(典型标注)
  • 阈值电压 Vgs(th):0.55 V(典型)
  • 总栅极电荷 Qg:880 pC @ 4.5 V
  • 输入电容 Ciss:74.5 pF @ 10 V
  • 输出电容 Coss:10.8 pF
  • 反向传输电容 Crss(Miller):10.2 pF @ 10 V
  • 功耗 Pd(封装约束):310 mW
  • 工作温度范围:-55 ℃ 到 +150 ℃
  • 封装:DFN1006-3L(小型化,热阻相对较高)

三、性能特点与优势

  • 低压逻辑门控:0.55 V 的阈值电压表明器件可在低电压驱动情况下开始导通,适合与低电平控制信号配合使用。
  • 小体积封装:DFN1006-3L 有利于节省 PCB 面积,适合移动终端和便携式设备。
  • 适用于高侧开关:作为 P 沟道 MOSFET,可直接用于负载的高侧断开与反向电流阻断,简化驱动电路。
  • 注意栅极驱动与开关特性:880 pC 的总栅极电荷相对较高,意味着在快速切换或高频率应用时需要考虑驱动能力与开关损耗。Crss(Miller)电容也会影响开关过渡过程,需合理限制 dv/dt 或使用缓冲驱动。

四、典型应用场景

  • 电池管理与保护电路(反向保护、断路开关)
  • 低压电源的高侧开关与负载切换
  • 便携设备与消费类电子的小功率开关元件
  • 需要小封装且对导通电阻要求中等的场合

五、封装、热管理与布局建议

DFN1006-3L 为小尺寸封装,热阻相对较高,器件的最大耗散功率(Pd 约 310 mW)受限于封装与 PCB 散热条件。使用时建议:

  • 在 PCB 下方预留焊盘并连接到较大铜箔以提升散热;必要时使用多层地平面。
  • 依据实际工作电流计算 I^2·RDS(on) 发热并进行热仿真与余量估算。举例:在 510 mA 时按 480 mΩ 计算,器件损耗约 0.125 W,仍需关注局部温升。
  • 焊接与回流工艺按厂家推荐执行,避免过热损伤封装与内部结构。
  • 采取常规 ESD 防护与静电接地措施,避免栅极击穿。

六、选型与使用注意事项

  • 在高速开关或高频 PWM 场景下,需评估栅极驱动器的电流能力与能量损耗(Qg×Vdrive×频率)。
  • 在设计前务必查阅完整数据手册,确认器件的绝对最大额定值(尤其是 Vgs 最大值、脉冲耐受能力与 SOA 限制)。
  • 若对导通损耗有更高要求,可考虑选择更低 RDS(on) 或更大封装的替代件;若需要更快开关速度,可选用栅极电荷更小的型号。

总结:WPM2049-3/TR 以其小体积、适配低压高侧开关的特性,在便携和空间受限的电源管理方案中具有良好适用性。设计时需兼顾栅极驱动与热管理,以发挥器件可靠性能。

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