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请帮忙确定UCC25630的四个型号的区别

Zhun Liu
Intellectual 280 points
Other Parts Discussed in Thread: UCC256301, UCC256302, UCC256303, UCC256304

这是TI官网上的UCC25630四个型号的对比表。

参数
 UCC256301 UCC256302 UCC256303 UCC256304
Topology Half-Bridge,Resonant LLC Half-Bridge,Resonant LLC Half-Bridge,Resonant LLC Half-Bridge,Resonant LLC
Control Method Current Current Current Current
Vin(Max)(V) 600 600 600 600
Duty Cycle(Max)(%) 50 50 50 50
Frequency(Max)(kHz) 1000 1000 1000 1000
Frequency(Min)(kHz) 35 35 35 35
Operating Temperature Range(C) -40 to 125 -40 to 125 -40 to 125 -40 to 125
Gate Drive(Typ)(A) 0.6 0.6 0.6 0.6
Features HV Start-up,Light Load Efficiency,Thermal Shutdown,Wide DC input,X cap discharge integrated HV Start-up,Light Load Efficiency,Thermal Shutdown Light Load Efficiency,Supports external bias,Thermal Shutdown HV Start-up,Light Load Efficiency,Thermal Shutdown,Wide AC input,Wide DC input,X cap discharge integrated
Rating Catalog Catalog Catalog Catalog
Approx. Price (US$) 0.99 | 1ku 0.95 | 1ku 0.90 | 1ku 0.95 | 1ku

可以看到UCC256304有“Wide AC和DC input”，而UCC256301只有“Wide DC input”。

但我在查看两者datasheet后发现，AC输入范围都是85~264V，似乎并没有区别。

请问两者的区别究竟在哪里？

除此之外，这四个型号还有哪些区别呢？