Toshiba Photovoltaic-Output Photocoupler Boosts Automotive SSR Reliability
KUALA LUMPUR, March 18 (Bernama) -- Toshiba Electronic Devices & Storage Corporation (Toshiba) has commenced volume shipments of the "TLX9920", a new photovoltaic-output photocoupler targeting solid state relays (SSR) in automotive equipment.
According to Toshiba in a statement, the introduction of the TLX9920 aligns with the growing demand for automotive relay units that offer a longer operational life, a market trend accelerating the industry's shift from conventional mechanical relays to SSR.
The component functions as a gate driver for the high-voltage power MOSFET utilised within SSR. This combination enables high-voltage and high-current switching, a performance level difficult to achieve with standard photorelays.
A key advantage of integrating the TLX9920 into SSR is the elimination of contact wear and the need for regular maintenance, issues common to mechanical relays that rely on physical contacts.
To meet rigorous safety requirements, the device is housed in a thin, long-creepage-distance SO6L package, which delivers a high isolation voltage. The package's creepage distance, exceeding eight millimetres (mm), surpasses the 5.6 mm minimum required by the IEC 60664-12 international standard for applications involving 400-volt (V) or higher operating voltages in environments with pollution degree two.
Furthermore, the TLX9920 complies with AEC-Q101, the automotive electronic component reliability standard.
Beyond automotive systems, the TLX9920 is suited for a broad array of switching applications in high-voltage and harsh environmental conditions, including energy storage systems (ESS) and industrial power equipment.
Toshiba indicated that this product reflects its continuing effort to develop reliable products for automotive and industrial markets, thereby supporting technological innovation and contributing to a sustainable society.
-- BERNAMA