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.

L9949属于集成电路（IC） > 电源管理 - 专用。意法半导体（ST）集团制造生产的L9949电源管理 - 专用专用型电源管理集成电路 (PMIC) 用于电源的控制或操作，适合特定或小范围的目标应用，例如汽车气囊管理、电容器组平衡、AC 公共电力监控、存储器总线端接、接地故障检测、能量收集、小型引擎管理、处理器或芯片集专用电压调节、负载突降保护、触觉驱动器、热电制冷器控制等。