D3505F SOP-7 PSR PWM IC+MOSFET 6W
D3505F is a high performance offline PSR power switch
for low power AC/DC charger and adapter applications. It
operates in primary-side sensing and regulation. Thus, opto-coupler and TL431 are not required. In CC control,
the output current and power setting can be adjusted
externally by the sense resistor RCS at CS PIN. In CV
control, multi-mode operations are utilized to achieve high
performance and high efficiency. In addition, good load
regulation is achieved by the built-in cable drop
compensation. D3505F operates in PFM in CC mode, and
it operates in PWM+PFM in CV mode with frequency
reduction at light/medium load. The chip consumes very
low operation current. It achieves less than 75mW
standby power to meet all global energy efficiency
regulations. D3505F offers comprehensive protection coverage with
auto-recovery feature including Cycle-by-Cycle current
limiting, VDD over voltage protection (OVP), output over
voltage protection, load short circuit protection, VDD
under voltage lockout (UVLO), OTP etc. D3505F is offered
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