Hi6338 combines a dedicated current mode PWM controller with integrated high voltage power MOSFET.Vcc low startup current and low operating current contribute to a reliable power on startup design with Hi6338. the IC operates in Extended ‘burst mode’ to minimize switching loss. Lower standby power and higher conversio efficiency is thus achieved. Hi6338 operates in the fixed PWM frequency ,the frequency is 105KHz.Excellent EMI performance is achieved with proprietary frequency huffling echnique.Soft Start with 2.5mS,Hi6338 offers complete protection coverage with automatic self-recovery feature including Vcc over voltage clamp and under voltage lockout (UVLO), over voltage protection(OLP),over current protection (OCP). Hi6338 is offered in DIP8 package.
Hi6334 30W; Hi6335 40W; Hi6336 48W; Hi6337 60W; Hi6338 75W
Integrated high voltage power MOSFET
Low Vcc Startup Current(5μA)
Frequency shuffling for EMI
Over current Protection(OCP),VCC over voltage Protection(OVP)
UVLO and Auto Self- Recovery
Soft Start with 2.5mS
OTP
AC OVP
OUT OVP
APPLICATIONS
Power Supplies
Offline AC/DC Flyback converter
Battery Charger
Open-frame SMPS
PD Charger