L293D中文资料具有二极管的推挽四通道驱动器数据手册ST规格书

描述 Description

The Device is a monolithic integrated high voltage, high current four channel driver designed to accept standard DTL or TTL logic levels and drive inductive loads (such as relays solenoides, DC and stepping motors) and switching power transistors.

To simplify use as two bridges each pair of channels is equipped with an enable input. A separate supply input is provided for the logic, allowing operation at a lower voltage and internal clamp diodes are included.

This device is suitable for use in switching applications at frequencies up to 5 kHz.

The L293D is assembled in a 16 lead plastic packaage which has 4 center pins connected together and used for heatsinking

The L293DD is assembled in a 20 lead surface mount which has 8 center pins connected together and used for heatsinking.

特性 Features

• INTERNAL CLAMP DIODES
• 600mA OUTPUT CURRENT CAPABILITY PER CHANNEL
• ENABLE FACILITY
• 1.2A PEAK OUTPUT CURRENT (non repetitive) PER CHANNEL
• LOGICAL \\\"0\\\" INPUT VOLTAGE UP TO 1.5 V (HIGH NOISE IMMUNITY)
• OVERTEMPERATURE PROTECTION

简介

L293D属于集成电路（IC）的电机驱动器控制器。由ST制造生产的L293D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。