|
|
从手册上看：The input capacitor (CIN) compensates for line fluctuation. Using a resistor of approximately 1 Ω in
% ~- T# ~. b' Iseries with CIN dampens the oscillation of input capacitance. % I1 u l, S+ a
* `4 K4 M5 W: e
The device is designed to operate from an input voltage supply range between 4 V and 40 V. This input supply
& r+ l: R& M1 l2 t7 g: k# J1 Jmust be well regulated. If the input supply is located more than a few inches from the device, TI recommends; G w' B& h: b- E8 r
adding an electrolytic capacitor with a value of 47 μF and a ceramic bypass at the input., |8 t: T) L2 C ]1 b |) o) S o2 j
, _- z! a5 t5 P; d; v2 T你前面的电容是贴片的陶瓷电容么？要不试下47uf电解电容？看到上面需要ESR接近1ohm的。 |
评分
-
查看全部评分
|
/1 
发表于 2017-4-7 11:17
收藏
淘帖
支持！
反对！
发表于 2017-4-7 23:47
楼主