Hi6276 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 Hi6276. the IC operates in Extended ‘burst mode’ to minimize switching loss. Lower standby power and higher conversio efficiency is thus achieved. Hi6276 operates in the fixed PWM frequency ,the frequency is 65KHz.Excellent EMI performance is achieved with proprietary frequency huffling echnique.Soft Start with 4mS,Hi6276 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).Hi6276 is offered in SOP8 package.

Hi6276 FEATURES
 Integrated high voltage power MOSFET
 Low Vcc Startup Current(5μA)
 “No Y-CAP”system design in sub 24W range
 Frequency shuffling for EMI
 Over current Protection(OCP),over voltage Protection(OVP)
 UVLO and Auto Self- Recovery
 Soft Start with 4mS
 OTP

Hi6273 :18W
Hi6274 :20W
Hi6276 :25W
Hi6277 :29W
Hi6278 :33W
Hi6279 :36W

Hi6276 APPLICATIONS
 Power Supplies
 Offline AC/DC Flyback converter
 Battery Charger
 Open-frame SMPS
 PD Charger