Question

功放IC TDA2030 和TDA2030A 有何区别

Answer 1

答：都是AB类功放，但是功率不同。
TDA2030是14w AB类功放，TDA2030A是18w AB类功放。
具体差异请参考如下资料，建议找这两颗IC的datasheet对照。

TDA2030：
14W Hi-Fi AUDIO AMPLIFIER
IC描述：The TDA2030 is a monolithic integrated circuit in Pentawatt® package, intended for use as a low frequency class AB amplifier. Typically it provides 14W output power (d = 0.5%) at 14V/4W; at ± 14V or 28V, the guaranteed output power is 12W on a 4W load and 8W on a 8W (DIN45500).

TDA2030A ：
18W Hi-Fi AMPLIFIER AND 35W DRIVER
IC描述：The TDA2030A is a monolithic IC in Pentawatt [package intended for use as low frequency class AB amplifier.With VS max = 44V it is particularly suited for more reliable applications without regulated supply and for 35W driver circuits using low-cost complementary pairs.

Answer 2

A型耐压高几V，功率大几瓦。