1. I have designed a circuit using TI's bq24650. Schemtaic & gerbers are attached. (Part of both are removed, only I have shown is high current path & mosfet).
2. I have to operate circuit at 10A. Problem is Mosfet gets too hot at 5A or above even after 2 min of operation. Also Diode D1 PDS1040 gets heated up, but they are not very hot.
3. Actual circuit has only one mosfet but it was rated for lesser current. So I have used 2 in parallel in my circuit. What could be issue with the circuit, are track length too short. I have removed solder msak layer from high current path as in gerbers you can check. Also while soldering I have placed a thick solder on these exposed tracks. Mosfet has high current rating as you can check in mosfet datasheet.
2. I have to operate circuit at 10A. Problem is Mosfet gets too hot at 5A or above even after 2 min of operation. Also Diode D1 PDS1040 gets heated up, but they are not very hot.
3. Actual circuit has only one mosfet but it was rated for lesser current. So I have used 2 in parallel in my circuit. What could be issue with the circuit, are track length too short. I have removed solder msak layer from high current path as in gerbers you can check. Also while soldering I have placed a thick solder on these exposed tracks. Mosfet has high current rating as you can check in mosfet datasheet.
Attachments
-
89.1 KB Views: 11