TIDA-01494: U7 (UCC24612), ISO_12V question

Driscoll Tsai

Expert 1590 points

Part Number: TIDA-01494
Other Parts Discussed in Thread: UCC24612, TIDA-010015, UCC256301

Hi Sir,

In EVM for http://www.ti.com/lit/ug/tidudf3/tidudf3.pdf

There is ISO_12V at U7(UCC24612), i.e. external input voltage, can it obtain from EVM output 24V by linear regulator?

Or it must need to add one more PWM IC and transformer to provide this 12V

Regards,

Driscoll

over 4 years ago

0 Huixin Wang over 4 years ago

TI__Intellectual 940 points

It can obtain from EVM output 24V by linear regulator.

regards

0 Driscoll Tsai over 4 years ago in reply to Huixin Wang

Expert 1590 points

Hi Sir,

Another question, due to AUX_15V is external board/ power for U10 and we need internal power and reduce standby power as lower as possible, could you help provide aux 15V circuit, like from PFC or LLC side?

thanks~

Regards,

Driscoll

0 Huixin Wang over 4 years ago in reply to Driscoll Tsai

TI__Intellectual 940 points

You can change LLC controller to UCC256301 which has HV startup and can use LLC aux winding for aux power. You can refer to TIDA-010015.

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TIDA-01494: U7 (UCC24612), ISO_12V question