WMSIC Electronic Components

XTX BRT30P35P1

ModelBRT30P35P1
PackagePDFN3*3-8L
BrandXTX
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 25+

Available for RFQ

Technical data

Product details

19 specifications

Core information

Product name
XTX BRT30P35P1
Type
XTX
Minimum package
5000 圆盘

Technical parameters

Electronic Component
Electronic Component
Electronic Component
XTX
Electronic Component
BRT30P35P1
Electronic Component
1
Package
PDFN3*3-8L
Electronic Component
1 P
Type
P
Electronic Component
MOSFET
Electronic Component
0.823g
Electronic Component
1
Electronic Component
BM0264826345
Operating Temperature
55℃~+150℃
Power Dissipation(Pd)
40W
Gate Voltage(Vgs)
±20V
Electronic Component
Electronic Component
Electronic Component
5000

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

BRT30P35P1 产品概述

一、主要参数与电气特性

BRT30P35P1 是一颗单通道 P 沟道功率 MOSFET,适合 30V 级高侧开关与电源路径管理。主要电气参数如下:

  • 最大漏-源电压 VDS:-30V(耐压)
  • 最大持续漏极电流 ID:-35A(负极性表示 P 沟道电流方向)
  • 导通电阻 RDS(on):7.6 mΩ @ VGS = -10V;10.9 mΩ @ VGS = -4.5V
  • 门极阈值 VGS(th):-1.7V
  • 最大门极电压 VGS:±20V
  • 总门极电荷 Qg:41 nC(Qgs = 7 nC, Qgd = 10 nC)
  • 输入/输出/反向传输电容:Ciss = 2252 pF, Coss = 306 pF, Crss = 222 pF
  • 功耗 Pd:40W(器件极限散热条件下)
  • 工作温度范围:-55℃ ~ +150℃
  • 封装:PDFN 3×3-8L
  • 品牌:XTX(芯天下)

二、关键特性与设计意义

  • 低导通电阻:在 VGS = -10V 时 RDS(on) 仅 7.6 mΩ,可实现极低的导通损耗,适合大电流路径使用,减少发热与电压降。
  • 逻辑电平友好:在 VGS = -4.5V 下 RDS(on) 为 10.9 mΩ,表明在有限门极摆幅下也能维持较低的导通损耗,但需注意 P 沟道门极为负向驱动(相对于源极)。
  • 中等门极电荷:Qg = 41 nC,表明在高频开关场合驱动能力要求中等,驱动功率与开关损耗需考虑门极驱动电流和驱动器能力。
  • 紧凑封装:PDFN 3×3-8L 适合空间受限的板级电源方案,但受限于封装散热能力,需做好 PCB 热设计。

三、典型应用场景

  • 高侧电源开关:适用于 12V/24V 系统的高侧开关与负载断开。
  • 电源路径管理与反向保护:作为电池管理、备用电源切换、智能电源路径的主动元件(理想二极管、负载开关)。
  • 电源分配与保护:常见于消费类、通信设备、电源模块输入断路与短路保护。
  • 低压/大电流开关:在对开通损耗敏感的场合用于大电流传输。

四、门极驱动与开关设计建议

  • 驱动极性:P 沟道器件以负 VGS 导通。举例:若源端连接到 +12V,要将器件充分导通,应将门极拉到约 +2V(VGS ≈ -10V);注意不要超过 ±20V。
  • 门极电阻:建议在门极串联 10–100 Ω 的限流电阻,典型 10–47 Ω 可平衡开关速度与振铃。
  • 驱动器选择:对于频繁或较高频率开关,选择能够提供瞬时高电流的驱动器以缩短过渡时间,降低开关损耗。Qg=41 nC 表明在 100 kHz 下平均驱动电流约为 4.1 mA,但峰值电流需能驱动快速过渡。
  • 杜绝电压应力:若源极随负载变化且可能接近地电位,需确保 VGS 不会超过 ±20V,必要时使用限压电路或栅极钳位器。

五、热设计与封装注意

  • 虽然 Pd 标称为 40W,但实际功耗能力高度依赖 PCB 散热设计与焊盘面积。利用底部散热焊盘、多层铜和热通孔(vias)以提高散热能力。
  • 在高电流连续工作情形下,要计算导通损耗 P = I^2 * RDS(on) 并预留安全裕度,必要时采用并联或选择更大封装器件。

六、选型与使用注意事项

  • 确认系统最高电压不超过 30V 并留有裕度;门极驱动必须保证在安全范围内。
  • 对于高频开关或对开关损耗敏感的场合,评估 Qgd(Miller charge)对开关延时和功耗的影响,并考虑必要的 RC 缓冲或驱动级。
  • 驱动逻辑与 MCU 直接接口时,注意门极电平的参考是源极(随电源而变),通常需要电平移位或专用驱动电路。
  • 对感性负载增加反向电压保护(TVS、RC 吸收、续流二极管等)以保护 MOSFET。

总结:BRT30P35P1 以低 RDS(on)、中等门极电荷和紧凑封装,在 30V 级大电流高侧开关与电源管理应用中具有良好性价比。设计时重点在门极驱动策略与 PCB 热管理。

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