Other Parts Discussed in Thread: LM74502
Hi,
In my design, I am using LM74502 for load dump protection. My circuit is attached
When the Vin is around 4.8V the output voltage that supplies the SMPS goes too low. The scopes are attached.
1)
1) Blue: Vin Yellow: Vout
2)
2) Blue: Pin 5 (Vs) Yellow: Vin
Is this normal or what is wrong with this design?
Also the overvoltage clamping scopes are attached.
Vin=37.6, Vout=36.5
Vin=38.5, Vout=34.7
Vin=45, Vout=34.7
Is there any problem?
Best regards.