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大家知道哪些实用的高电压数字信号驱动芯片。目前在做28V输出的驱动电路。输入是TTL电平，有一定的功率要求。
亲，这是做啥用处？频率多少？负载是啥？
ULN系列考虑吗？集成达林顿管
如果考虑使用ULN系列，可以参考TI的ULN2002A, ULN2003A, ULN2003AI, ULN2004A, ULQ2003A, 具有如下特点：
• 500-mA-Rated Collector Current (SingleOutput)• High-Voltage Outputs: 50 V• Output Clamp Diodes• Inputs Compatible With Various Types ofLogic• Relay-Driver Applications
