No.75683
作者：lin888
邮件：taitongda888@126.com
ID：142047
登陆：1次
文章数：17篇
最后登陆IP：116.30.25.60
最后登陆：2009/9/16 12:36:55
注册：2009/9/14 16:00:25
财富：190
发帖时间：2009/9/15 12:36:09
发贴者IP：61.141.199.188
标题：lin888:A3968SLB-T原装热卖
摘要：No.75683A3968SLB-T原装热卖 A3968
Dual Full-Bridge PWM Motor Driver with Brake
Features
±650 mA continuous output current
30 V output voltage rating
Internal fixed-frequency PWM current control
Satlington® sink drivers
Brake mode
User-selectable blanking window
Internal ground-clamp and flyback diodes
Internal thermal-shutdown circuitry
Crossover-current protection and UVLO protection
Description
The A3968 bidirectionally controls two DC motors. The device includes two full-bridges capable of continuous output currents of ±650 mA and operating voltages to 30 V. Motor winding current can be controlled by the internal fixed-frequency, pulse-width modulated (PWM), current-control circuitry. The peak load current limit is set by user selection of a reference voltage and current-sensing resistors. The fixed-frequency pulse duration is set by a user-selected external RC timing network. The capacitor in the RC timing network also determines a user-selectable blanking window that prevents false triggering of the PWM current-control circuitry during switching transitions. To reduce on-chip power dissipation, the full-bridge power outputs have been optimized for low saturation voltages. The sink drivers feature the Allegro® patented Satlington® output structure. T ......
>>返回讨论的主题
| 
导航: 老古网→ 老古论坛→XMOS公共讨论区→XMOS开源项目区→单片机程序设计→嵌入式系统→广告区域→