L9848 Octal Configurable Low/High Side Driver IC for Body Control / Horn Drive Modules

The L9848 is a highly flexible monolithic medium current output driver IC, designed specifically for demanding automotive body control applications .

This component is a common failure point in vehicle body computer modules, particularly in horn drive circuits, as well as lighting, mirror, and window lift control systems .

The device integrates 8 configurable outputs, with 2 dedicated low side outputs and 6 outputs that can be used as either internal low or high side drives in any combination .

Typical symptoms of a failing L9848 include a non-functioning horn, intermittent light operation, or failure of power window and mirror adjustment functions.

Each output channel can deliver up to 800mA continuous current with a maximum on-resistance of 1.5Ω, ensuring efficient power delivery for medium current loads .

The chip operates within a -40°C to 150°C junction temperature range, making it capable of withstanding extreme automotive environmental conditions .

Integrated SPI interface provides full control and diagnostic feedback, including open load detection, short circuit detection, and thermal shutdown protection .

Additional PWM inputs are available for 2 outputs, enabling dimming or speed control for lighting and motor applications .

Built-in protection features include output voltage clamping for inductive load management, reverse battery protection, and ground disconnection protection .

The device is offered in a standard 28-pin SOIC surface-mount package, suitable for dense PCB layouts in modern automotive electronics .

This product is a high-quality replacement component, ideal for automotive repair professionals and technicians specializing in body control module restorations.