L9950集成电路（IC）的电源管理-专用规格书PDF中文资料

L9950属于集成电路（IC）的电源管理-专用。由意法半导体集团制造生产的L9950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。

1 FEATURES

■ One full bridge for 6A load (ron = 150mΩ )

■ Two half bridges for 3A load (ron = 300mΩ )

■ Two half bridges for 1.5A load (ron = 800mΩ )

■ One highside driver for 6A load (ron = 100mΩ )

■ Four highside drivers for 1.5A load (ron = 800 mΩ )

■ Programmable Softstart function to drive loads

with higher inrush currents (i.e. current

>6A,>3A,>1.5A)

■ Very low current consumption in standby mode

IS < 6µA, typ. Tj ≤ 85 °C)

■ All outputs short circuit protected

■ Current monitor output for 300mΩ ,150mΩ and

100m highside drivers

■ All outputs over temperature protected

■ Open load diagnostic for all outputs

■ Overload diagnostic for all outputs

■ Seperated half bridges for door lock motor

■ PWM control of all outputs

■ Charge Pump output for reverse polarity

protection

2 APPLICATIONS

Door Actuator Driver with bridges for door lock and

safe lock, mirror axis control, mirror fold and highside

driver for mirror defroster and four 5W-light bulbs.

3 DESCRIPTION

The L9950 is a microcontroller driven multifunctional door actuator driver for automotive applications.Up to five DC motors and five grounded

resistive loads can be driven with six half bridges

and five highside drivers. The integrated standard

serial peripheral interface (SPI) controls all operation modes (forward, reverse, brake and high impedance).

All diagnostic informations are available via SPI