Convert SQL query to DQL doctrine query with multiple AND / OR operators

Question

I'm a developper beginner (and my first question here) and unsure of a DQL query expression vs equivalent SQL expression I want to run in database.

SQL query is :

SELECT *
FROM table

*[other WHERE CONDITIONS]*
WHERE (field-A = 2 AND field-B IS NULL) OR (field-A = 2 AND field-B IS NULL);

On the Symfony side, I'm not sure what I'm doing in terms of nesting AND / OR operators. I think that :

$qb = $this->createQueryBuilder('t');
*[other WHERE CONDITIONS]*
            $qb->andWhere(function ($qb, $data) {
                $qb->where(isNull('t.field-A'))
                    ->andWhere('t.field-B = :data')
                    ->orWhere('t.field-A = :data')
                    ->andWhere(isNull('t.field-B'))
                    ->setParameter('data', $data);
            });

Do you think my DQL query is correct compared to the SQL query ?

Thank you all for your help