WMSIC Electronic Components

JSMSEMI FD2103S

ModelFD2103S
PackageSOP-8
BrandJSMSEMI
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 Option 131960

Availability on request

Technical data

Product details

19 specifications

Core information

Product name
JSMSEMI FD2103S
Type
JSMSEMI
Minimum package
4000 未知

Technical parameters

Electronic Component
Electronic Component
Electronic Component
JSMSEMI
Electronic Component
FD2103S
Electronic Component
1
Package
SOP-8
Electronic Component
(UVP)
Electronic Component
Gate Driver IC
Electronic Component
0.108g
Electronic Component
1
Electronic Component
BM0229961338
Operating Temperature
40℃~+125℃
Operating Voltage
6V~20V
Load Type
MOSFET
Driver
Electronic Component
Current(IOH)
1.2A
Current(IOL)
1.5A

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

FD2103S 产品概述

FD2103S 是 JSMSEMI(杰盛微)推出的一款双通道半桥驱动器,专为驱动功率 MOSFET 设计,适用于 6V~20V 的供电环境。器件提供较强的瞬态驱动能力、低待机损耗及欠压保护功能,适合开关电源、电机驱动及其他需要高效 MOSFET 驱动的应用场景。

一、主要特性

  • 驱动配置:半桥(High-side/Low-side 驱动组合,2 通道)
  • 负载类型:MOSFET(专用栅极驱动)
  • 驱动能力:下拉电流 IOL = 1.5A(sink),上拉电流 IOH = 1.2A(source)
  • 工作电压:6V 至 20V,适配 12V 毫安级系统及更高电压应用
  • 开关速度:上升时间 tr ≈ 50ns,下降时间 tf ≈ 40ns(典型)
  • 保护功能:欠压保护(UVP),在 VCC 低于安全门限时阻断驱动输出
  • 工作温度:-40℃ 到 +125℃
  • 静态电流:Iq ≈ 160µA(低待机功耗)
  • 封装:SOP-8,适合常规 PCB 工艺与批量生产

二、性能与设计要点

FD2103S 的短上升/下降时间配合 1.2A/1.5A 的驱动电流,可在保证快速开关的同时控制开关损耗与 EMI。栅极驱动的有效电荷处理能力可用下列近似关系估算:

  • 估算可驱动的栅极电荷 Qg ≈ Idrive × tr
    • 以 IOH = 1.2A 与 tr = 50ns 为例,Qg_max ≈ 1.2A × 50ns = 60nC
  • 动态耗散近似:Pd_dyn ≈ Qg × VCC × f_sw
    • 例如 Qg = 30nC、VCC = 12V、f = 100kHz 时,Pd_dyn ≈ 0.036W
  • 总功耗还需加上静态损耗:Pd_total ≈ Qg×VCC×f + Iq×VCC

这些公式可用于评估在给定工作频率与 MOSFET 栅极电荷下的驱动器发热与散热需求。

三、保护与可靠性

器件内置欠压保护(UVP),用于在 VCC 下降到不安全水平时关闭输出,避免 MOSFET 在半驱动状态下工作而导致高损耗或失控。工作温度范围覆盖 -40℃ 至 +125℃,适用于工业级环境。实际设计时,应参考完整数据手册确认欠压门限、故障响应与重启策略。

四、封装与布局建议

FD2103S 采用 SOP-8 封装,便于通用 PCB 布局。建议:

  • 在驱动器 VCC 与地之间放置旁路电容(例如 0.1µF 与 1µF 并联),靠近 VCC 引脚布置,降低电源纹波与瞬态压降。
  • 驱动引脚与 MOSFET 栅极间走短线,减少寄生电感,降低振铃与过冲。
  • 输出端(栅极)附近可根据需要并联小阻尼电阻(10Ω~100Ω)以调节上升/下降斜率,兼顾开关损耗与 EMI。
  • 若功率较高,注意 PCB 铜箔散热与器件周围气流。

五、典型应用

  • 无刷直流电机(BLDC)驱动半桥
  • 同步降压/升压转换器的高低侧驱动
  • 汽车级 12V 辅助系统(需确认汽车认证)
  • 开关放大器与 Class-D 音频放大(需按 EMI 要求调整)

六、选型与注意事项

在选型时,重点考虑被驱动 MOSFET 的总栅极电荷 Qg 与预期开关频率 f,以保证驱动器在目标 tr/tf 下不会过热。虽然 FD2103S 支持 6V~20V 宽电压范围,但具体欠压门限、最大绝对额定值与引脚功能请以官方数据手册为准。SOP-8 封装便于批量生产,但对于高散热场合可考虑外部散热措施或使用更大封装的驱动器。

若需进一步的引脚定义、电气时序图、典型应用电路或 PCB 参考布局,请索取 FD2103S 的完整数据手册或联系 JSMSEMI 授权代理获取技术支持。

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