Hi Sir：
I have a Li-ion battery charger project that uses the TEA2016 . It need to outputs 28V to 42V.
The scenarios that need to be applied are 28V to 41.5V constant 5A current .
when battery is 42V ,It need constant voltage.
At present, 42V constant voltage output, current 0A to 5A adjustable, the test is OK.
But, when the constant current 5A output and the voltage is adjusted from 28V to 41.5V, It happen a question LLC-GANMOS Half bridge damaged .
lower bridge and the half-bridge damaged.
I tested a report that the voltage can be output from 28V to 42V when the current loop is limited to a constant 2A output.
But, TEA2016 will automatically adjust the HP-LP mode, and the resonant current waveform and half-bridge voltage waveform in LP mode are confused.
At present, it is speculated that the 5A output in LP mode will disturb GANMOS-GS.（see pg1）
There is also a case where the current loop limits 5A constant current output, and when the load machine adjusts 7Ω in CR mode, the theoretical output voltage is at this moment: 5A*7Ω=35V. In reality, however, the TEA2016 chip stopped working. （see pg2）
See attachment for pictures of current loop 2A limitation（see pg3-pg6）
SCH see PDF,During the test, in order to avoid the instability of the operation amplifier power supply, 13V is an independent power supply
I have asked for the technical support of the agent, but there is no solution at present. I was hoping you could help.
