Other Parts Discussed in Thread: UCC256403, PMP40766
Tool/software:
Hi,
My customer is currently considering the development of a 500W, 48V battery charger (output voltage: 55V to 40V, output current: 10A, CC/CV control).
During the circuit investigation phase, we found that TI’s PMP41106 reference design is a strong match for their application. The customer is planning to base their design on this reference.
However, they have previously used the UCC256403 in a 3kW power supply and are now evaluating whether the same controller could be reused for this 500W charger instead of the UCC256613, which is used in the PMP41106 design.
We would appreciate your insights on the following points:
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If the LLC stage is configured similarly to PMP41106, can UCC256403 still support the wide output voltage range (55V–40V) as demonstrated in the reference design?
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Is UCC256403 suitable for battery charger applications requiring CC/CV control?
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Or, given the architecture, would you recommend using UCC256613 with IPPC control as the more appropriate choice for this application?
Our understanding is that UCC256613’s IPPC control offers advantages in terms of transient response and wide-range output handling, which may be more suitable for battery charging applications. That said, we’d like to confirm whether UCC256403 could also be a viable option under the same conditions.
Thanks,
Conor
