Description
The UTC UC3869 is a highly integrated current mode PWM control IC with high voltage start up, optimized for high performance, low standby power consumption and cost effective offline flyback converter applications.
Features
- S.
- High voltage startup.
- Power on soft start reducing MOSFET Vds stress.
- Efficiency and minimum standby power.
- Frequency shuffling for EMI.
- Audio noise free operation.
- Fixed 65KHZ switching frequency.
- Comprehensive protection coverage
VDD Under Voltage Lockout with Hysteresis (UVLO) Cycle-by-cycle over current protection (OCP) Overload Protection (OLP) External programmable Over Temperature Protection (OTP) VDD Over voltage Protection(OVP)
CMOS IC
www. unisoni.
UC3869-UTC.pdf
