Texas Instruments OPA521 2.5A Narrowband Line Drivers

Texas Instruments OPA521 2.5A Narrowband Line Drivers align a line-driver power amplifier with the power-line communications (PLC) conducted emissions requirements in CENELEC bands A, B, C, and D and ARIB STD-T84 and FCC Part 15. The OPA521 offers high-current, low-impedance lines with reactive loads up to 2.5A. The device uses minimal external protection components with optimized internal protection structures that enable cost- and space-effective systems. A closed-loop gain of –7V/V with 3.8MHz of bandwidth is featured along with a monolithic integrated circuit allowing high reliability in power-line communication applications. A single supply from 7V to 24V operates the OPA521 line driver, providing a typical load current (I_OUT = 2.5A, maximum), and a wide output swing gives a 10VPP capability with a nominal 24V supply. Other features include protection against overtemperature and short-circuit conditions and fault detection flags showing current and thermal limits. The device offers a low-power state that consumes 58µA (typical) through an available shutdown pin.