No.74572 作者:sumzi007 邮件:sumzi006@sumzi.com ID:97317 登陆:16次 QQ:623069669 -- MSN:sumzi007@hotmail.com 文章数:47篇 最后登陆IP:113.87.168.222 最后登陆:2010/1/20 13:23:39 注册:2007/12/28 11:25:01 财富:2034 发帖时间:2009/8/22 13:59:26 发贴者IP:116.24.171.33 标题:sumzi007:[原创]UDN2916LBTR-T 原装正品行 现货热卖 13802553295 曾小姐 摘要:No.74572[原创]UDN2916LBTR-T 原装正品行 现货热卖 13802553295 曾小姐 型号:UDN2916LBTR-T 年份:07+ 08+ 整包装:1000PCS/REEL 封装:24-lead SOIC UDN2916LBTR-T PDF 文档 ALLEGRO 2916[1].PDF Description The UDx2916 motor drivers drive both windings of a bipolar stepper motor or bidirectionally control two DC motors. Both bridges are capable of sustaining 45 V and include internal pulse-width modulation (PWM) control of the output current to 750 mA. The outputs have been optimized for a low output saturation voltage drop (less than 1.8 V total source plus sink at 500 mA). For PWM current control, the maximum output current is determined by user selection of a reference voltage and sensing resistor. Two logic-level inputs select output current limits of 0%, 33%, 67%, or 100% of the maximum level. A PHASE input to each bridge determines load current direction. The bridges include both ground-clamp and flyback diodes for protection against inductive transients. Internally generated delays prevent crossover currents when switching current direction. Special power-up sequencing is not required. Thermal protection circuitry disables the outputs if the chip temperature exceeds safe operating limits. The device is supplied i ......
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