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

簡介

L6207屬于集成電路（IC）的全半橋驅(qū)動器。由制造生產(chǎn)的L6207全半橋驅(qū)動器器件屬于電橋驅(qū)動器電源管理集成電路 (PMIC) 系列，包含兩個或多個功率晶體管，以及在外部器件控制下將其用作開關(guān)所需的電路。這些晶體管通常在內(nèi)部配置為成對串聯(lián)連接（稱為半橋），因而任意指定晶體管對之間的結(jié)點都可以連接至兩個電源軌中的任一個。這類器件常用于將控制器件（如微控制器）提供的低電平信號轉(zhuǎn)換為操作執(zhí)行器（如步進電機或無刷電機）所需的較大功率信號。