BD6221F集成电路（IC）的全半桥驱动器规格书PDF中文资料

BD6221F属于集成电路（IC）的全半桥驱动器。由罗姆半导体集团制造生产的BD6221F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

These H-bridge drivers are full bridge drivers for brush motor applications. Each IC can operate at a wide range of power supply voltages (from 3V to 36V), supporting output currents of up to 2A. MOS transistors in the output stage allow for PWM signal control, while the integrated VREF voltage control function of previous models offers direct replacement of deprecated motor driver ICs. These highly efficient H-bridge driver ICs facilitate low-power consumption design.

特性 Features

1) Built-in, selectable one channel or two channels configuration

2) Low standby current

3) Supports PWM control signal input (20kHz to 100kHz)

4) VREF voltage setting pin enables PWM duty control

5) Cross-conduction prevention circuit

6) Four protection circuits provided: OCP, OVP, TSD and UVLO

Applications

VCR; CD/DVD players; audio-visual equipment;

optical disc drives; PC peripherals;

car audios; car navigation systems; OA equipments