描述 Description

The I.C. is a full bridge driver for motor control applications realized in Multipower-BCD technology which combines isolated DMOS power transistors with CMOS and Bipolar circuits on the same chip. By using mixed technology it has been possible to optimize the logic circuitry and the power stage to achieve the best possible performance. The DMOS output transistors can operate at supply voltages up to 42V and efficiently at high switching speeds. All the logic inputs are TTL, CMOS and μC compatible. Each channel (half-bridge) of the device is controlled by a separate logic input, while a common enable controls both channels. The I.C. is mounted in three different packages.

特性 Features

? HIGH EFFICIENCY
? INTERNAL LOGIC SUPPLY
? OPERATING FREQUENCY UP TO 100 KHz
? TTL COMPATIBLE DRIVE
? SUPPLY VOLTAGE UP TO 48V
? TOTAL RMS CURRENT UP TO:L6201: 1A; L6202: 1.5A; L6203/L6201PS: 4A
? 5A MAX PEAK CURRENT (2A max. for L6201)
? CROSS CONDUCTION PROTECTION
? THERMAL SHUTDOWN
? RDS (ON) = 0.3 Ω (typical value at 25°C)

簡介

L6203屬于集成電路（IC）的全半橋驅動器。由制造生產的L6203全半橋驅動器器件屬于電橋驅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所需的電路。這些晶體管通常在內部配置為成對串聯(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。