WMSIC Electronic Components

MICROCHIP TC4426EOA713

ModelTC4426EOA713
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 26+

Available for RFQ

Technical data

Product details

19 specifications

Core information

Product name
MICROCHIP TC4426EOA713
Type
MICROCHIP
Minimum package
3300 圆盘

Technical parameters

Electronic Component
Electronic Component
Electronic Component
MICROCHIP
Electronic Component
TC4426EOA713
Electronic Component
1
Package
SOIC-8
Electronic Component
Gate Driver IC
Electronic Component
0.169g
Electronic Component
1
Electronic Component
BM0258677331
Operating Temperature
40℃~+85℃
Operating Voltage
4.5V~18V
Load Type
MOSFET
Driver
Electronic Component
Current(IOH)
1.5A
Current(IOL)
1.5A
Driver Channel Count
2

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

TC4426EOA713 产品概述

一、产品简介

TC4426EOA713 是 MICROCHIP(美国微芯)推出的一款双通道低端(低侧)MOSFET栅极驱动器芯片,采用 SOIC-8 封装。该器件为反相输出(输入与输出逻辑相反),每通道具有高达 1.5A 的瞬态拉电流(IOH)与灌电流(IOL),工作电源范围为 4.5V 至 18V,典型上升/下降时间约为 19ns,适用于对开关速度与驱动能力有较高要求的电源变换、功率开关及驱动电路中。

二、关键参数与主要特性

  • 驱动配置:低边(低端)驱动器,专为下侧MOSFET门极供驱动电流设计。
  • 输出特性:双通道、反相输出;每通道瞬态拉/灌电流 IOL/IOH = 1.5A(典型)。
  • 工作电压:VDD = 4.5V ~ 18V,兼容常见的12V、10V、15V门极驱动电源。
  • 开关速度:典型上升时间 tr ≈ 19ns、下降时间 tf ≈ 19ns,适合中高速开关场合。
  • 工作温度:Ta = -40℃ 至 +85℃(环境温度范围,设计时需关注器件热耗散)。
  • 封装:SOIC-8(易于常规SMT焊接与PCB布板)。
  • 品牌与可靠性:MICROCHIP 品牌,适合对可靠性有要求的商业及工业应用。

三、工作原理与引脚功能(简要)

作为反相低边驱动器,TC4426 的每一路输入信号在经过内部驱动放大后,会在输出端产生与输入逻辑相反的门极电压(VDD 或 GND)。在典型应用中:

  • 当输入为高电平时,输出被拉低(MOSFET 关断);
  • 当输入为低电平时,输出被驱到 VDD(或接近 VDD),MOSFET 导通。
    该反相特性在某些电平转换与逻辑简化场合非常有用。芯片引脚包括两个输入、两个输出、VDD、电源地(GND)及必要的封装引脚。

四、典型应用场景

  • 低侧功率MOSFET驱动(直流电机驱动、MOSFET桥臂、同步整流)
  • 开关电源(降压/升压转换器)中下侧开关的栅极驱动
  • 汽车电子(注意满足温度与电压瞬态要求)
  • 继电器或功率MOSFET阵列的并行驱动与保护电路

五、设计与布局注意事项

  • 电源去耦:在 VDD 与 GND 之间放置近端去耦电容(建议 0.1μF 陶瓷 + 小容量电解或钽电容做旁路),并将去耦电容尽量靠近芯片 VDD 与 GND 引脚焊盘放置,以抑制瞬态电流冲击。
  • 布线最短化:驱动输出到 MOSFET 栅极的走线应尽量短且阻抗受控,以减少寄生电感引发的振铃与过冲。
  • 串联栅极电阻:必要时在栅极串上小阻(如几Ω至几十Ω)以限制峰值电流、减小振铃并改善电磁兼容(EMC)。
  • 热管理:尽管瞬态驱动电流大,但平均功耗受开关频率与 MOSFET 栅电荷(Qg)影响。高频率下要关注封装热阻、PCB散热并确保环境温度不超限(Ta ≤ +85℃)。
  • 保护与抗干扰:输入端可并联小电阻或RC滤波以防止高 dv/dt 时误触发;在需要时配合短路/过流保护电路。

六、选型建议与比较要点

  • 若应用需要双通道且反相逻辑简化布线,TC4426 提供了便利的功能。
  • 对于更高温度或更高驱动电流需求,应比较同系列或其他系列(例如具有更大电流等级或更高工作温度)的器件。
  • 如果系统需要高侧驱动或隔离驱动,应选择专用高侧或隔离栅极驱动器;TC4426 适合专注低侧驱动场合。

七、封装与采购提示

TC4426EOA713 提供 SOIC-8 封装,适合批量生产的 PCB 装配。购买时请注意厂商标识、完整型号与批次信息,并参考 MICROCHIP 官方数据手册以获得完整电气特性、时序图与应用电路示例,确保设计参数与极限条件得到满足。

总结:TC4426EOA713 是一款适用于中高速低侧MOSFET驱动的双通道反相栅极驱动器,具有 1.5A 的瞬态驱动能力与较宽的工作电压区间,适合电源转换与功率开关场合使用。设计时需重视去耦、布线、栅极电阻与热管理,以确保可靠稳定运行。

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