[Review and Sharing] TLP3547 Response Time

weizhongc

[Review and Sharing] TLP3547 Response Time [Copy link]

               It has been a few days since I received the module. I looked at the evaluation guide and it is not bad. The overall parameters are basically better than mechanical relays. I am engaged in smart home, and I definitely like it for its small size. Because I don’t have a suitable board to replace this photorelay, I just used the development board to test it. According to the guide, the operation/release time is 1-5ms. I started to test it according to this parameter. 1. Operate with 1000Hz PWM, no response 2. Operate with 500Hz PWM, no response 3. Operate with 400Hz PWM, no response 4. Operate with 300Hz PWM, no response 5. Operate with 200Hz PWM, there is a response As can be seen from the above figure, the minimum response time is about 5ms, and the release time can be almost ignored. The National Day is coming soon, and I used this to change the automatic fish feeder to wifi control. Nodemcu+Gizwits Cloud+TLP3547 is implemented. It is a bit rushed and just made a simple opening and closing.