similarities:
- they have the same package: eSOP-12B
- same switching frequency = 132 kHz,typ
- same max duty cycle = 64%
- same I_limit = 0.77A,typ
differences:
- they have different BV_dss:
LNK6663K BV_dss = 650V
LNK6773K BV_dss = 725V
- different Multi-Cycle Modulation Max Off-Time
LNK6663K T_MCM(off) = 0.5 ms
LNK6773K T_MCM(off) = 4 ms
the only key difference between the 2 IC is the breakdown voltage. You might want to consider which is appropriate for your specific application.
Hi elmasingen,
You might want to check the datasheet for comprehensive comparison of the 2:
https://ac-dc.power.com/sites/default/files/product-docs/linkswitch-hp_family_datasheet.pdf
But generally:
similarities:
- they have the same package: eSOP-12B
- same switching frequency = 132 kHz,typ
- same max duty cycle = 64%
- same I_limit = 0.77A,typ
differences:
- they have different BV_dss:
LNK6663K BV_dss = 650V
LNK6773K BV_dss = 725V
- different Multi-Cycle Modulation Max Off-Time
LNK6663K T_MCM(off) = 0.5 ms
LNK6773K T_MCM(off) = 4 ms
the only key difference between the 2 IC is the breakdown voltage. You might want to consider which is appropriate for your specific application.