Overview

The LB1848MC is 2-channel low-voltage, low saturation voltage type bidirectional motor driver IC that is optimal for use as 2-phase stepping motor drivers in printers, cameras and other portable equipment. The output circuits are of the bipolar type, with PNP transistors in the upper side and NPN transistors in the lower side, and they achieve low saturation output and low power characteristics despite being provided in a miniature package.

Functions

• Optimal for 2-phase excitation drive for 2-phase stepping motors

• Standby current: Zero

• Low saturation voltage. VO (sat) = 0.55V typical at IO = 400mA

• Thermal shutdown circuit

• Through-current prevention circuit

• No limitations on the magnitude relationship between the power supply voltage (VCC) and the input voltage (VIN)

• “Soft off” function that reduces power supply line noise when switching from drive to standby modes. (Requires the use of one external capacitor.)

LB1848MC属于集成电路（IC） > 电机驱动器，控制器。安森美半导体公司制造生产的LB1848MC电机驱动器，控制器产品属于电机驱动器和控制器电源管理集成电路 (PMIC) 系列，可用于控制或操作从某电源施加到电机或相关机电执行器的电源。所实现的具体功能和特性集根据预期负载和预期应用的特性有很大差异，范围从用于有刷电机的简单开环速度控制到基于步进电机的高级闭环运动控制。