L9959中文资料单/双路PMOS高侧H桥数据手册ST规格书

描述 Description

L9959S/L9959U and L9959T are single and dual integrated H-bridges for resistive and inductive loads featuring output current direction and supervising functions.

The PowerSSO24 houses one full H-Bridge, while the PowerSSO36 houses both two H-Bridges that can work in parallel, through independent input driving commands, and one full H-bridge, by improving PCB footprint design versus different target applications.

Target application ranges from throttle control actuators to exhaust gas recirculation control valves in automotive domain to a more general use to drive DC and Stepper motors.

特性 Features

• Full path RDSONless than 540 mΩ
• Continuous load current > 3 A
• Operating battery supply voltage 5 V to 28 V
• Operating VDDsupply voltage 4.5 V to 5.5 V
• All ECU internal pins can withstand up to 18 V
• Output switching frequency up to 11 kHz
• Monitoring of VDDsupply voltage
• SPI programmable output current limitation from 5 A to 8.6 A (in 3 steps)
• Over temperature and short circuit protection
• Full diagnosis capability
• Fast switch-off open-drain input/output
• Current-monitoring with current feedback output signal CF
• SPI-interface for configuration and diagnosis
• Error history in second diagnosis register
• Two independent enable pins: \"/ABE\" and \"DIS\"
• Control of power stages by SPI or two input signals, PWM and DIR (configurable via SPI)
• Logic levels 5 V compatible
• Conformity to improved EMC requirements due to smart H-bridge switching

简介

L9959属于集成电路（IC）的全半桥驱动器。由制造生产的L9959全半桥驱动器器件属于电桥驱动器电源管理集成电路 (PMIC) 系列，包含两个或多个功率晶体管，以及在外部器件控制下将其用作开关所需的电路。这些晶体管通常在内部配置为成对串联连接（称为半桥），因而任意指定晶体管对之间的结点都可以连接至两个电源轨中的任一个。这类器件常用于将控制器件（如微控制器）提供的低电平信号转换为操作执行器（如步进电机或无刷电机）所需的较大功率信号。