The IR2161is specifically designed for electronic transformers that drive low voltage halogen lamps. All necessary features are integrated into a single 8-pin DIP or SOIC, reducing parts count, simplifying circuits and increasing reliability. It can adapt to changing supply voltage, frequency conditions, and lamp conditions enabling the introduction of highly-reliable halogen transformers while streamlining their design and manufacture. Adaptive Deadtime Control is a key feature of the IR2161, which increases transformer reliability by continually maintaining soft switching.
The IR2520D is a control IC integrating all the necessary features for fluorescent lamp ballasts. Also packaged in an 8-pin DIP or SOIC, the new device includes a zero voltage switching (ZVS) circuit that maintains soft switching, regardless of supply voltage, frequency and lamp conditions, and includes internal crest factor over-current protection and an integrated bootstrap diode. Its adaptive zero voltage switching control minimizes switching losses in the half-bridge MOSFETs, ensuring maximum efficiency and lifetime, regardless of component and lamp tolerances as well as line voltage variations.
