Dear Sir
I am writing to you to request technical help, the concrete content including:
I want to use the chip UCD30** to make a digital control power, the power requirements are as follows:
Input: DC24V
Output: 5-18V programmable voltage, and intrinsic safety(coal sector).
I have used this chip made some test and experiment,and I found the chip can meet the requirements of the sampling port, but there are some other question as follows:
1.I need a circuit as a PWM output, and three circuit as a fault signal output.
I am looking forward to your prompt reply to my request. The fault signal should be jump signal, and have high reaction speed. In these requirements, which port should be as the output of the fault signal? Is GPIO/DPWM? GPIO/FAULT? Or others?
2.How should I to deal with the chip of V33FB, which I want to use the 3.3 V voltage power supply to the chip.Is impending? Grounding? Connect with V33? Or others?
3.The last question is: chip itself can do it? If I want to output the fault signal in a few μs.
I am Looking forward to your reply soon.
Best regards,
Zhezhong Zhang