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OPA564输出能力问题

Other Parts Discussed in Thread: OPA564

OPA564规格书中标示最大输出为20Vpp@1.5A;通过仿真可以得到接近的数值,输出功率10W;但是搭建电路输出只有4.6W左右。根据该结果:

是否可以说,OPA564的最大输出能力为20Vpp@1.5A,而平均输出功率还要收热阻封装散热限制。是否可以进行如下计算?