Del. Code tit. 5, § 962

Any bank may, subject to any limitations on lending authority contained in its charter or otherwise imposed by law and subject to the other provisions of this subchapter, offer and extend closed end credit to a borrower and in connection therewith, may charge and collect any periodic interest, interest charges and other charges permitted by this subchapter and may take such security as collateral in connection therewith as may be acceptable to the bank.