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做了一个LM3409HV的恒流电路，输出接９颗串联的LED灯，输入４８V，额定电流1.5A，５W，PWM控制。输出部分使用的肖特基二极管是MBR3100，3A100V的，问题是使用时LED点亮不久二极管就击穿了，是否二极管选择不当？能否推荐一款二极管．谢谢！
这个二极管需要一平方英寸铜薄为它散热，显然你没注意这点。结果它“发火”了。
