SC6850
Description
SC6850 is a highly integrated current mode PWM
controller optimized for high performance, low
standby power and cost effective offline flyback
converter applications.
Making use of external resistor, SC6850 can
change the maximum operating frequency. At full
loading, the IC operates in fixed frequency mode.
When the loading goes low, it operates in Green
Mode for high power conversion efficiency at light
load condition.
SC6850 offers comprehensive protection
coverage with auto-recovery including
Cycle-by-Cycle current limiting (OCP), VDD
under voltage lockout (UVLO), VDD over voltage
protection (OVP) and over temperature protection
(OTP).
SC6850 is offered in SOT23-6/SOP-8/DIP-8
Pb-free package.
Features
Power-on Soft Startup
External Programmable PWM switch
Frequency
Constant Output Power Control
Low VDD Startup Current (<5uA)
Low Operation Current
No Frequency Jitter
Built-in Synchronized Slop Compensation
Leading Edge Blanking On Current Sense
VDD Under Voltage Lockout (UVLO)
VDD Over Voltage Protection (OVP)
Cycle-by-cycle Over Current Protection
(OCP)
Over Temperature Protection (OTP)
Applications
Offline AC/DC flyback converter for
AC/DC Adapter
Battery charger
Open-frame SMPS
