WMSIC Electronic Components

XBLW L293D

ModelL293D(XBLW)
PackageDIP-16
BrandXBLW
Price Price on request Electronic component prices change quickly with market supply and demand. Please refer to the latest WMSIC quotation for current pricing.
Configuration
1 options
Configuration 26+

Available for RFQ

Technical data

Product details

19 specifications

Core information

Product name
XBLW L293D(XBLW)
Type
XBLW
Minimum package
25 管

Technical parameters

Electronic Component
Electronic Component
Electronic Component
XBLW
Electronic Component
L293D(XBLW)
Electronic Component
1
Package
DIP-16
Electronic Component
Stepper Motor Driver IC
Electronic Component
1.702g
Electronic Component
1
Features
Electronic Component
Electronic Component
BM0265621941
Resistor
1.2Ω
Operating Temperature
40℃~+150℃
Voltage
4.5V~36V
Output Current
600mA
Integrated Switch
Electronic Component
Electronic Component
Electronic Component

For datasheets, package documents, compatible-part guidance, or other technical resources, contact WMSIC customer service. Availability is confirmed case by case.

L293D(XBLW芯伯乐)产品概述

XBLW(芯伯乐)推出的L293D是一款面向小型电机驱动及功率开关场景的集成IC,采用经典双全桥架构,兼容TTL/CMOS逻辑控制,以宽电压范围、高可靠性及DIP-16直插封装为核心优势,广泛适用于消费电子、小型工业控制、教育实验等领域。

一、核心定位与典型应用场景

L293D的核心功能是双全桥功率驱动,可实现直流电机正反转控制、小型步进电机驱动(配合外部细分电路),同时可作为多路电源开关使用。典型应用包括:

  • 小型移动设备:玩具车、智能小车的电机驱动;
  • 教育实验:电子竞赛、创客项目的电机控制模块;
  • 工业辅助控制:小型继电器线圈、电磁阀的驱动;
  • 消费电子:电动窗帘、小型风扇的执行机构控制。

二、关键电气参数详解

结合XBLW官方参数,核心性能满足多数小型负载需求:

  1. 控制电压范围:4.5V~36V
    覆盖3.3V/5V微控制器(如Arduino、STM32)到高压直流电源,无需额外电平转换,简化系统设计。
  2. 输出电流能力:600mA持续输出
    支持130/260系列直流电机、28BYJ-48步进电机的持续运行,峰值电流兼容1A左右(需辅助散热)。
  3. 导通电阻与功耗:1.2Ω(单通道)
    单通道最大功耗约0.43W(0.6A×0.6A×1.2Ω),DIP-16封装下需通过加宽PCB铜箔或小型散热片散热,避免局部过热。
  4. 集成功能说明:
    注:实际产品为双全桥集成功率开关设计(内部含4组达林顿管+4个续流二极管),参数录入中“集成开关:否”为表述偏差,无需外部功率开关即可驱动负载。

三、封装与物理特性

采用DIP-16直插封装,优势明显:

  • 手工焊接友好:适合原型开发、面包板实验,无需复杂设备;
  • 引脚兼容:与标准L293D定义一致,可直接替换同型号产品;
  • 尺寸适配:符合DIP-16标准(19.3mm×6.4mm×4.6mm),适配多数PCB直插焊盘。

四、工作温度范围及可靠性

温度范围为**-40℃~+150℃**,覆盖:

  • 工业场景:户外设备(小型气象站执行机构)、高低温车间;
  • 汽车辅助:车载座椅调节、后视镜控制;
  • 极端气候:寒带/热带地区消费电子应用。
    内部集成续流二极管,可抑制感性负载切换时的电压尖峰,提升系统可靠性。

五、典型应用电路参考

以直流电机正反转控制为例,简化电路:

  1. 电源:
    • Vcc(引脚16):接4.5V~36V电源,并联100nF陶瓷电容;
    • Vss(引脚8):接5V逻辑电源(与MCU共地),并联100nF电容;
  2. 控制:
    • 输入引脚(2/7/10/15):接MCU GPIO,通过高低电平控制转向;
  3. 输出:
    • 输出引脚(3/6/11/14):接电机两端,无需额外续流二极管;
  4. 接地:引脚4/5/12/13共地,与MCU地连接。

六、选型与使用注意事项

  1. 散热设计:输出电流接近600mA时,需预留≥10mm²铜箔或加装10mm×10mm铝散热片;
  2. 电源滤波:输入电源必须并联100nF陶瓷电容(靠近芯片引脚);
  3. 负载限制:感性负载电流不超过600mA持续值;
  4. 电平兼容:支持TTL(5V)和CMOS(3.3V)控制信号,无需转换。

总结:XBLW L293D以高性价比、宽电压范围及易开发特性,成为小型电机驱动领域的经典选择,适配从原型到量产的全流程应用。

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