WMSIC Electronic Components

MICROCHIP TC4428VOA

ModelTC4428VOA
PackageSOIC-8
BrandMICROCHIP
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 24+

Available for RFQ

Technical data

Product details

19 specifications

Core information

Product name
MICROCHIP TC4428VOA
Type
MICROCHIP
Minimum package
100 管

Technical parameters

Electronic Component
Electronic Component
Electronic Component
MICROCHIP
Electronic Component
TC4428VOA
Electronic Component
1
Package
SOIC-8
Electronic Component
Gate Driver IC
Electronic Component
0.8g
Electronic Component
1
Electronic Component
BM0264554935
Operating Temperature
40℃~+125℃
Operating Voltage
4.5V~18V
Load Type
MOSFET
Current(IOH)
1.5A
Current(IOL)
1.5A
Driver Channel Count
2
(tr)
19ns

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

TC4428VOA 产品概述

一、产品简介

TC4428VOA 是 MICROCHIP(美国微芯)推出的一款双通道低端 MOSFET 栅极驱动器,采用 8 引脚 SOIC 封装。器件集成一路反相和一路非反相输出(便于半桥或互补驱动拓扑的灵活布置),每通道峰值灌电流和拉电流均为 1.5A,工作电压范围宽(4.5V 至 18V),适合驱动多种功率 MOSFET 与 IGBT 的栅极。

二、主要规格

  • 负载类型:MOSFET / 电力开关器件
  • 驱动通道数:2(反相 + 非反相)
  • 灌电流(IOL,典型峰值):1.5A
  • 拉电流(IOH,典型峰值):1.5A
  • 工作电压:4.5V ~ 18V(单电源供电)
  • 上升/下降时间:tr = 19ns,tf = 19ns(典型)
  • 工作温度范围:-40℃ ~ +125℃
  • 封装:SOIC-8(VOA 后缀指特定封装/引脚版本)

三、器件特性与优势

  • 高频快速切换:典型 19ns 上升/下降时间,可显著降低 MOSFET 的开关损耗,提高效率。
  • 对称驱动能力:相近的灌/拉电流使上升与下降斜率匹配,有利于优化电磁兼容性(EMC)与开关损耗的平衡。
  • 宽电压余量:4.5V–18V 的输入允许与多种驱动电源(5V、12V、15V 等)兼容,便于系统集成。
  • 工业级温度范围:-40℃~+125℃ 满足汽车级或工业级苛刻环境的可靠性要求。
  • 双通道灵活性:反相/非反相组合便于直接驱动低端互补对或半桥结构,减少外部逻辑元件。

四、典型应用场景

  • DC-DC 升降压转换器的功率开关驱动
  • 电机驱动(无刷直流电机驱动器、伺服驱动)
  • LED 大电流驱动与功率因数校正(PFC)电路
  • 汽车电子与工业电源开关控制
  • 继电器/电磁阀等功率器件的快速开关控制(需注意吸收回路)

五、布局与使用建议

  • 输入电源去耦:VDD 端应在器件近旁放置 0.1μF 陶瓷去耦电容,必要时并联 1μF~10μF 增强瞬态响应,降低寄生感抗引起的振铃。
  • 地线处理:采用完整的地平面,驱动器地端与功率地的回流路径应尽量短且集中,减少环路面积以降低 EMI。
  • 门极电阻:为控制开关速率与抑制振荡,建议在每一路门极加入适当的串联电阻(典型 1Ω~10Ω,视 MOSFET 栅电荷与系统要求调整)。
  • 布线长度:输入/输出引脚至功率管门极/逻辑信号线尽量短,避免长引线带来的延迟与振铃。
  • 热管理:在高开关频率或大负载下检查封装温升,必要时采用 PCB 散热铜箔或外部散热措施。

六、可靠性与注意事项

  • 开关毛刺与过压保护:快速转换虽然降低开关损耗,但会增加瞬态电压与 EMI,建议在功率侧采用合适的 RC 吸收、TVS 或缓冲网络保护。
  • 并联驱动限制:器件本身适合驱动单个或成对 MOSFET,若需并联多颗 MOSFET,应评估驱动器峰值电流能否满足总门电荷要求并考虑增加驱动缓冲。
  • 输入逻辑兼容性:器件对常见 TTL/CMOS 逻辑信号兼容,但在 3.3V 逻辑直接驱动时请确认阈值与噪声裕度。

七、封装与采购信息

  • 封装形式:SOIC-8,便于自动贴装与标准化 PCB 设计。
  • 品牌:MICROCHIP(美国微芯),适配工业与商业量产要求。
  • 推荐查询:在设计前请参考厂商的详细数据手册,获取引脚排列、典型特性曲线、最大额定值以及建议的应用电路,以确保设计满足电气与安全裕度。

以上为 TC4428VOA 的产品概述与实用设计建议,可作为快速选择与系统集成时的参考。若需要,我可以基于具体 MOSFET 型号和工作条件帮您计算所需的门极电阻、估算驱动器平均损耗与热性能。

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