目前的用法:
1.输出采用推荐电路;
2.输入的EN为了控制上电时序,使用5V转1.9V(第一片TPS62040)的1.9V输出-->给了5V转3.3V(第二片TPS62040)的EN,
疑问:
手册上推荐电路范围是2.5V--6V,手册上给的图中显示EN是2V时就工作;手册上并未见EN有详细的参数范围描述;
请问,EN需要多少范围为合理且能可靠工作?
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