L6230Q VFQFPN32损耗非常高

你好，
我的电机控制板与FOC i在VFQFPN封装的驱动器IC L6230Q中损耗非常高。
在高压侧接通时间内，我在操作电压（21V）和Motorphase输出电压之间的差值为2.6V。 （见图）
通道2（蓝色）= Opperating Voltage
通道1（黄色）=输出2
直接测量L230的引脚
另一个阶段是低（低侧开启），第三个阶段是开放（EN低）
使用热像仪，我可以看到芯片中的热点（> 100°C）。所以没有不好的焊接。
原理图等于数据表。
使用P-Nucleo IHM001，我没有这么高的损失。在这块主板上，L6230Q采用大型PowerSO36封装
任何想法？
谢谢
埃里克



以下为原文




Hello,
i our Motor Control Board with FOC i have very high losses in the Driver IC L6230Q in the VFQFPN package.
In the On-Time of the High side i have a differenz of 2.6V between the Operatine Voltage (21V) and the Output Voltage on the Motorphase. (see picture)
Channel 2 (blue) = Opperating Voltage
Channel 1 (yellow) = Out 2
measured direktly on the pins of the L230
One of the other Phase is Low (Low-Side On) and the third one is Open (EN is low)
With the thermo camera i can see hot points (>100°C) in the chip. so there is no bad soldering.
The schematic is equal to the datasheet.
With the P-Nucleo IHM001 i dont have this high losses. On this Board the L6230Q is in the big PowerSO36 Package
Anyone ideas?
Thank You
Eric