WMSIC Electronic Components

ElecSuper SI7617DN(ES) SI7617DN

ModelSI7617DN(ES)
PackagePDFN-8L(3x3)
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 26+

Available for RFQ

Technical data

Product details

19 specifications

Core information

Product name
Elec Super SI7617DN(ES)
Type
ELECSUPER
Minimum package
5000 圆盘

Technical parameters

Electronic Component
Electronic Component
Electronic Component
ELECSUPER
Electronic Component
SI7617DN(ES)
Electronic Component
1
Package
PDFN-8L(3x3)
Electronic Component
1 P
Type
P
Electronic Component
MOSFET
Electronic Component
0.1g
Electronic Component
1
Electronic Component
BM0265197991
Power Dissipation(Pd)
30W
Electronic Component
Electronic Component
Electronic Component
5000
Voltage(Vdss)
30V
Capacitor(Ciss)
1.78nF

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

SI7617DN(ES) 产品概述

一、主要参数

  • 器件类型:P沟道增强型 MOSFET(P-channel enhancement MOSFET)
  • 品牌:ElecSuper(静芯微)
  • 封装:PDFN-8L (3×3)(无铅)
  • 漏源电压 Vdss:30 V
  • 连续漏极电流 Id:39 A
  • 导通电阻 RDS(on):8 mΩ @ VGS = 10 V;11.5 mΩ @ VGS = 4.5 V(标称)
  • 阈值电压 VGS(th):1.4 V(按 |VGS| 标称)
  • 栅极电荷 Qg:46 nC @ 10 V
  • 输入电容 Ciss:1.78 nF
  • 反向传输电容 Crss:200 pF
  • 输出电容 Coss:235 pF
  • 耗散功率 Pd:30 W

二、产品特性

SI7617DN(ES) 采用先进沟槽工艺和器件设计,在保持低导通电阻的同时尽量降低栅极电荷。主要特性包括:

  • 低 RDS(on):在常规栅压下提供极低导通损耗,适合高效率功率路径。
  • 较大的连续电流能力(39 A):适合中高电流应用场景。
  • 宽栅压设计:在 VGS = -10 V 时表现最佳(RDS(on) 标称 8 mΩ),在弱驱动(-4.5 V)下仍有 11.5 mΩ 的表现,兼容多种驱动方案。
  • 中等栅极电荷(46 nC @10 V):在开关频率较高时需要注意驱动功率,但对多数 DC-DC 或功率开关场合是可接受的折中设计。
  • 合理的寄生电容值(Ciss/Crss/Coss):有利于稳定的开关过渡和可控的开关损耗。

三、典型应用

  • 双向或高侧/低侧电源开关(特别是需要 P 沟道做高侧切换的场合)
  • DC-DC 变换器(同步整流或高侧开关)
  • 电池充放电管理与保护电路
  • 便携与移动设备电源路径切换
  • 需要小尺寸封装与较大电流承载的电源模块

四、封装与热管理要点

PDFN-8L (3×3) 提供小尺寸与良好散热路径,但实际热性能高度依赖 PCB 热铜面积与焊盘布局。器件额定耗散功率 Pd = 30 W(典型器件级别)表明在设计中应:

  • 在器件底部与散热焊盘处使用大面积、带多通孔的散热铜箔;
  • 在附近布置足够的散热铜层并通过热过孔连接上下层;
  • 避免在高环境温度或无散热强化措施下长期满载运作,建议参考完整数据手册中的热阻参数并进行热仿真验证。

五、驱动与电路设计建议

  • 作为 P 沟道 MOSFET,导通需施加负栅源电压(VGS 为负值);驱动电压越大(如 -10 V),RDS(on) 越低,但注意不要超过器件最大 VGS 限值(请参阅完整资料)。
  • 由于 Qg = 46 nC 较为显著,若用于高频开关应选用足够驱动能力的驱动器以缩短开关过渡时间,或通过阻尼提高斜率以降低 EMI 与振铃。
  • 布局方面:栅极与驱动之间走线要短且阻抗低,源脚尽可能做 Kelvin 连接,漏-源路径最短以降低寄生电阻与电感。
  • 若电路中存在大反向恢复电流或尖峰,应考虑 RC 缓冲、TVS 或合适的阻尼网络保护器件与驱动。

六、可靠性与合规

SI7617DN(ES) 为无铅(RoHS 兼容)标准产品,适用于商业与工业电源设计。具体的寿命、循环及应力测试数据应参考厂商完整可靠性报告与资格认证。

七、结论与选型建议

SI7617DN(ES) 在 30 V 级 P 沟道 MOSFET 中,提供了极低的导通电阻与较高的连续电流能力,适用于高侧开关、同步整流与电源路径管理等应用。选型时关注两点:一是实际电路的驱动电平能否达到推荐的 VGS 以获得最低 RDS(on);二是在高频开关场景下要提前评估栅极驱动能量与热管理方案。对于寻求在小封装内实现高效率与紧凑布局的电源设计,SI7617DN(ES) 是值得优先评估的器件。

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