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Data sheet of XN 1042
Current Mode PWM Controller
GENERAL DESCRIPTION
The tone energy at below 20KHZ is minimized in
XN1042 is a highly integrated current mode PWM
operation. Consequently, audio noise performance is
control IC optimized for high performance, low standby greatly improved. XN1042 is offered in both SOP-8
power and cost effective offline flyback converter
and DIP-8 packages.
applications. PWM switching frequency at normal
operation is externally programmable and trimmed to tight range. At no load or light load condition, the IC operates in extended ‘burst mode’ to minimize switching
FEATURES ■ Extended Burst Mode Control For Improved ■Efficiency and Minimum Standby Power Design
loss.