【芯片揭秘】高压半桥驱动如何从源头杜绝炸机？CXHB6556D防直通机制全动态解析！

#硬件工程师 #电机驱动 #MOSFET #电源设计 #芯片 #电路保护 
⛔ 问题：自己搭半桥电路，最怕上下管直通，瞬间过流烧芯片？
✅ 方案：本期通过高清动态原理图，拆解一颗高压半桥驱动芯片CXHB6556D的“防直通”核心设计——内置死区时间控制。
你将看到： 
1. 高/低边信号如何安全切换（动画演示）
2. 纳秒级死区时间如何强制插入（波形分析）
3. 1A强驱动如何降低开关损耗（电流路径展示） 需要芯片数据手册、参考设计或样片申请？ 
欢迎在评论区留言“驱动芯片”，或访问官网：jtm-ic.com #技术宅 #电子制作 #驱动芯片 #半桥 #国产芯片

 产品概述 

The CXHB6556D is a high voltage , high speed power MOSFET driver with independent high and low side76A嘉泰姆
referenced output channels based on P_SUB P_EPI process. The floating channel can be used to drive an N-76A嘉泰姆
channel  power  MOSFET  in the high side configuration   which  operates  up to 200 V. Logic  inputs  are76A嘉泰姆
compatible with standard CMOS or LSTTL output, down to 3.3V logic. The output drivers feature a high pulse76A嘉泰姆
current buffer stage designed for minimum driver cross-conduction.76A嘉泰姆
The CXHB6555 CXHB6556A CXHB6556B CXHB6557 is a high voltage, high speed power MOSFET and IGBT driver based on P_SUB P_EPI process. The floating channel driver can be used to drive two N-channel power MOSFET or IGBT independently which operates up to 120 V. Logic inputs are compatible with standard CMOS or LSTTL output, down to 3.3V logic. The output drivers feature a high pulse current buffer stage designed for minimum driver cross -conduction. Propagation delays are matched to simplify use in high frequency applications. It has two versions CXHB6555 CXHB6556A CXHB6556B CXHB6557

   产品特点76A嘉泰姆

CXHB6556D76A嘉泰姆
   Fully operational to +200 V76A嘉泰姆
   3.3 V input logic compatible  76A嘉泰姆
   dV/dt Immunity ±50 V/nsec76A嘉泰姆
   Gate drive supply range from 6 V to 18 V76A嘉泰姆
   Typically Source / Sink current capability 1 A/1 A 76A嘉泰姆
   Typically -9 V negative Vs bias capability76A嘉泰姆
CXHB6555 CXHB6556A CXHB6556B CXHB655776A嘉泰姆
z Fully operational to +120 V 76A嘉泰姆

z 3.3 V logic compatible 76A嘉泰姆

z Floating channel designed for bootstrap operation 76A嘉泰姆

z Gate drive supply range from 10 V to 20 V 76A嘉泰姆

z Output Source / Sink Current Capability 450mA / 900mA 76A嘉泰姆

z Independent Logic Inputs to Accommodate All Topologies 76A嘉泰姆

z -5V negative Vs ability 76A嘉泰姆

z Matched propagation delay for both channels76A嘉泰姆

   应用范围76A嘉泰姆

z Small and medium- power motor driver 76A嘉泰姆

z Power MOSFET or IGBT driver76A嘉泰姆

   技术规格书（产品PDF)  76A嘉泰姆

     需要详细的PDF规格书请扫一扫微信联系我们，还可以获得免费样品以及技术支持！76A嘉泰姆

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产品封装图 76A嘉泰姆

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电路原理图 76A嘉泰姆

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