LB1843V集成电路（IC）的全半桥驱动器规格书PDF中文资料

LB1843V属于集成电路（IC）的全半桥驱动器。由安森美半导体制造生产的LB1843V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。

Overview

The LB1843V is a low-saturation bidirectional motor driver with output current limitation and detection functions. This design is ideal for controlling the loading motor in a video camera.

Function

• Output current limiter and detector built in.

• Low-saturation voltage bidirectional bridge circuit built in:

VOsat = 0.40 V typ. at 400 mA.

• Practically no current drain (0.1 μA or less) in standby mode.

• Input-linked reference voltage built in .

• Thermal shutdown circuit built in.

• Requires little space, since few external components are needed

and the IC is contained in a small SSOP-20 package