L9954中文资料车门致动器驱动器数据手册ST规格书

描述 Description

The L9954 and L9954XP are microcontroller driven multifunctional door actuator driver for automotive applications. Up to two DC motors and three grounded resistive loads can be driven with three half bridges and three 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.

特性 Features

• Overload diagnostic for all outputs
• Open load diagnostic for all outputs
• Charge pump output for reverse polarity protection
• PWM control of all outputs
• Current monitor output for highside OUT1, OUT4, OUT5 and OUT6
• All outputs short circuit protected
• Three half bridges for 1.5A load (Ron=800m )
• Two highside drivers for 1.5A load (Ron=800m )
• One highside driver for 6A load (Ron=100m )
• Very low current consumption in standby mode (IS < 6μA typ; Tj ≤ 85 °C)
• All outputs over temperature protected
• Programmable softstart function to drive loads with higher inrush currents (i.e. current >6A, >1.5A)

简介

L9954属于集成电路（IC）的电源管理-专用。由制造生产的L9954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。