Update: 28 September, 2023
The LM5021 is an off-line pulse width modulation (PWM) controller that contains all of the features needed to implement highly efficient off-line single-ended flyback and forward power converters using current-mode control. The LM5021 features include an ultra-low (25 µA) start-up current, which minimizes power losses in the high voltage start-up network. A skip cycle mode reduces power consumption with light loads for energy conserving applications (ENERGY STAR®, CECP, etc.). Additional features include under-voltage lock-out, cycle-by-cycle current limit, hiccup mode overload protection, slope compensation, soft-start and oscillator synchronization capability.
File format: PDF
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MD5 Checksum: 3EB4DF03D74FC17AC63A0E9702E2DF51
Publication date: 09 May, 2012
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PDF Link: NATIONAL SEMICONDUCTOR LM5021 Manual PDF