ISO5852S-Q1: the device is smoking not pin 5

Haider Mhiesan

Part Number: ISO5852S-Q1

I am using ISO5852SQDWRQ1, and the device is smoking not pin 5

I did exactly the same as the datasheet recommended (Figure 49). The IC smokes on pin 5 and its burnt. I used another one and still the same

My current limit is 1 Amp

Please any help

over 7 years ago

0 Xiong Li over 7 years ago

TI__Intellectual 1665 points

Hi Haider,

It would help us understand the situation if you can share the schematic of your circuits with us.

With Regards,

Xiong

0 Haider Mhiesan over 7 years ago in reply to Xiong Li

Prodigy 200 points

I just did figure 49. I test it as open loop.

0 Xiong Li over 7 years ago in reply to Haider Mhiesan

TI__Intellectual 1665 points

The configuration of Figure 49 worked for us. It is hard to help you debug your circuit without knowing exactly how your circuit is setup up. I would recommend you to double check the power supply connections to make sure there is no short circuit between VCC and GND. To simplify the problem, you can connect DESAT pin to VEE2, and remove the DESAT diode. Let me know how it works, and we can discuss more.

With Regards,

Xiong

0 Haider Mhiesan over 7 years ago in reply to Xiong Li

Prodigy 200 points

Thanks for an amazing advice. Now it works after I have done what you suggested.

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ISO5852S-Q1: the device is smoking not pin 5