DESCRIPTION

The L9949 is a microprocessor controlled power interface for automotive applications. It is realized in multipower BCD60III technology.

■ ONE FULL BRIDGE FOR 6A LOAD (ron = 150mΩ)

■ THREE HALF BRIDGES FOR 1.6A LOAD (ron = 800mΩ)

■ ONE HIGHSIDE DRIVER FOR 6A LOAD (ron = 100mΩ)

■ VERY LOW CURRENT CONSUMPTION IN STANDBY MODE (IS < 6µA, typ. Tj ≤ 85°C)

■ SERIAL PERIPHERAL INTERFACE (SPI) TO MICROCONTROLLER

■ ALL OUTPUTS SHORT CIRCUIT PROTECTED

■ CURRENT MONITOR OUTPUT FOR FULL BRIDGE AND HIGHSIDE DRIVER

■ ALL OUTPUTS OVER TEMPERATURE PROTECTED

■ OPEN LOAD DIAGNOSTIC FOR ALL OUTPUTS

■ OVERLOAD DIAGNOSTIC FOR ALL OUTPUTS

APPLICATIONS

■ FOR AUTOMOTIVE APPLICATIONS, E.G.