L6207中文资料双全桥驱动器 采用PWM电流控制器数据手册ST规格书

描述 Description

The L6207 device is a DMOS dual full bridge designed for motor control applications, realized in BCD technology, which combines isolated DMOS power transistors with CMOS and bipolar circuits on the same chip. The device also includes two independent constant off time PWM current controllers that perform the chopping regulation. Available in PowerSO36 and SO24 (20 + 2 + 2) packages, the L6207 device features a non-dissipative overcurrent protection on the high-side Power MOSFETs and thermal shutdown.

特性 Features

• Operating supply voltage from 8 to 52 V
• 5.6 A output peak current (2.8 A DC)
• RDS(ON) 0.3 Ω typ. value at Tj = 25 °C
• Operating frequency up to 100 KHz
• Non-dissipative overcurrent protection
• Dual independent constant tOFF PWM current controllers
• Slow decay synchronous rectification
• Cross conduction protection
• Thermal shutdown
• Undervoltage lockout
• Integrated fast freewheeling diodes

简介

L6207属于集成电路（IC）的全半桥驱动器。由制造生产的L6207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。