hello,

I am using the 6EDL7141 with an STM32 microcontroller and have several questions which I don't believe are answered in the datasheet.

First I will explain the problems I am having:

1. When VBUS voltage input is above ~7V and EN_DRV is enabled, the DVDD output shuts off. At this point the 6EDL consumes ~40mA @ 12V

2. When VBUS voltage input is above ~7V and EN_DRV is disabled (low), the DVDD is ON and at 3.3V setpoint.

3. When VBUS voltage input is a bit lower than 7V and EN_DRV is enabled, DVDD is ON and at 3.3V setpoint. 

4. The 6EDL will not reply to SPI commands.

I expect that there is some fault when EN_DRV is enabled? But why is this related to input voltage?

Questions:

1. Does SPI communication from 6EDL require that EN_DRV is on (high)?

2. Why might I be experiencing the above behavior. I have capacitance close to load and close to output of 3.3V DVDD

I have attached a schematic.

Thank you,

Alec

Bootstrap diode leakage current (ILK_DIODE) is missing in the datasheet, it is essential for the calculation of the bootstrap capacitor.

Hi,

   SDO Disable Time starts at the 0.8VDD point on the CSN rising. How do I choose the end point? According to the figure, there is a line at 0.8VDD/0.2VDD. One thing is before the line the device has already released SDO and it's high impedance. The signal SDO may charge or discharge somehow making a slow rising/falling edge. In this situation, if you take 0.2VDD/0.8VDD as end point, the tdissdo will be far longer than the rating value. In fact, it makes no sense since the device already realesed the pin, the time of rising/falling has nothing to do with the device. For another thing, there may not be a rising/falling edge.So 0.2VDD/0.8VDD may not occur.

=

请问下 9183会在什么情况下进入这个 configuration lock active mode，进入这个模式后，可否切换

Hello,

I'm using the following topology to provide a noise-immune driving signal path to the isolated gate driver IC 1EDB7275FXUMA1. Is there any potential problem with this scheme? Is there a better/standard method for this?

Note: All components are on a PCB.

Hi 英飞凌

关于9180有一个疑问，我在做测试时，想注入故障确认诊断机制是否能触发，以下两条诊断策略没有找到很好的方法触发，请问英飞凌有推荐吗？或者如下两条无需测试验证，英飞凌可以保证？

1、Special Event - Latent Fault Warning

2、Internal Errors 2 - Charge Pump 1 Overload Error