WMSIC Electronic Components

ROHM QS8J13TR

ModelQS8J13TR
PackageTSMT8
BrandROHM
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
ROHM QS8J13TR
Type
ROHM
Minimum package
3000 圆盘

Technical parameters

Electronic Component
Electronic Component
Electronic Component
ROHM
Electronic Component
QS8J13TR
Electronic Component
1
Package
TSMT8
Electronic Component
2 P
Electronic Component
MOSFET
Electronic Component
0.073g
Electronic Component
1
Electronic Component
BM0229305261
Power Dissipation(Pd)
1.5W
Electronic Component
Electronic Component
Electronic Component
3000
Voltage(Vdss)
12V
Capacitor(Ciss)
6.3nF
Output Capacitor(Coss)
750pF

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

QS8J13TR 产品概述

QS8J13TR 为 ROHM(罗姆)推出的一款双通道 P 沟道场效应管,适用于低电压、高密度电源路径控制与高侧开关应用。器件在紧凑的 TSMT8 封装内集成两个 P 沟道 MOSFET,针对 12V 级系统提供良好的导通性能与开关特性,是便携设备、车载电子子系统、USB/电源分配和负载开关等场景的理想选择。

一、主要电气参数(典型值)

  • 漏源耐压 (Vdss):12 V
  • 连续漏极电流 (Id):5.5 A(单通道额定)
  • 导通电阻 (RDS(on)):15 mΩ @ Vgs = 4.5 V
  • 最大耗散功率 (Pd):1.5 W(封装与 PCB 散热条件相关)
  • 阈值电压 (Vgs(th)):1.0 V @ Id = 1 mA
  • 总栅极电荷 (Qg):60 nC @ Vgs = 4.5 V
  • 输入电容 (Ciss):6.3 nF
  • 反向传输电容 (Crss):750 pF
  • 输出电容 (Coss):750 pF
  • 封装:TSMT8(8 引脚小型封装)
  • 数量:每封装包含 2 个 P 沟道 MOSFET

二、器件特性与优势

  • 低 RDS(on):在 4.5V 门极驱动下 15 mΩ 的低导通电阻可将导通损耗降到较低水平,尤其适合 5A 级负载;例如在 5.5A 时单颗器件导通损耗约 I²R ≈ 0.45 W(理论值),需结合散热评估使用条件。
  • 适合高侧开关:P 沟道 MOSFET 易于实现高侧控制,驱动电路相对简单(门极拉低即可导通),在电池或电源正轨上做负载切换或断开非常方便。
  • 双通道集成:两个 P 沟道器件同封装便于多路电源路径或双路负载管理,占板面积小,便于布局和成本控制。
  • 中等栅极电荷:Qg=60 nC 属于中等水平,开关时对驱动能力有一定要求,但不会像大功率 MOSFET 那样对驱动器造成过大负担。开关频率较低(如功率分配、负载开关)时,驱动损耗可忽略不计;若用于较高频率场合需考虑驱动功率。

三、典型应用场景

  • 电源路径开关 / 负载开关(电池到系统、外设供电切换)
  • USB/Type-C 电源分配与保护(作为高侧开关或反向电流防止器件)
  • 便携设备与通信设备的电源管理模块
  • 车载辅助电源(低压子系统)与点火保护(注意汽车环境温度与浪涌)
  • 双路电源选择或冗余切换

四、设计与使用建议

  • 门级驱动:P 沟道在高侧开关时,门极需拉低以实现导通;常见驱动幅度为 4.5V 左右可达到 RDS(on) 指标。注意门极驱动电流由 Qg 决定,驱动功率约 Pdrv ≈ Qg × Vdrive × f。举例:Qg=60 nC,Vdrive=4.5 V,在 100 kHz 开关频率下驱动损耗 ≈ 27 mW。
  • 热设计:封装 Pd=1.5W 表示在规定散热条件下的最大耗散能力。实务中需通过加大 PCB 铜箔、热铺板与过孔散热、缩短导线长度来降低结壳温升,确保在连续大电流下不过热。
  • 器件并联与通道使用:若单通道电流接近额定上限,应考虑两通道并联或分担负载,但并联时注意走线、电阻均衡与热分布。
  • 保护与滤波:建议在门极加入适当的栅极电阻以抑制振铃,加入 TVS 或 RC 滤波器以增强抗浪涌和 EMI 性能。Crss 较大时在快速边沿下易产生 Miller 效应,需在布局与驱动策略上注意控制 dv/dt。

五、封装与采购信息

QS8J13TR 采用 TSMT8 紧凑封装,适合空间受限的 PCB 设计。ROHM 品牌保证制造和可靠性,建议通过正规渠道采购并参考官方数据手册以获取详细引脚定义、热阻、包封图及应用电路参考。

总结:QS8J13TR 在 12V 级系统中提供了低 RDS(on)、双通道集成与便捷的高侧控制能力,适用于电源管理与负载开关类应用。设计时重点关注栅极驱动能力与 PCB 散热布局,以发挥其最佳性能。若需更详细的热阻、引脚图或典型应用参考,请查阅 ROHM 官方数据手册或告知具体应用场景,我可协助做更精细的选型与电路设计建议。

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