COX3165 Datasheet | Coxsemi

FEATURES GENERAL DESCRIPTION z Built-in Soft Start Function COX3165 is a highly integrated current mode PWM z Very Low Start-up Current controller for medium to large offline power converter z Proprietary “Smooth Frequency Foldback” applications. and Burst Mode Operation for Green Mode In COX3165, the PWM switching is internally trimmed Operation to tight range. To improve EMI performance, the IC z Proprietary “Hybrid Frequency Jittering” integrates Coxsemi’s Proprietary “Hybrid Frequency z Proprietary “Constant Power Limiting” (Full Jittering” for the oscillator to reduce conduction EMI AC Input Range) emission of a power supply. When the output power z High Voltage CMOS Process with Excellent ESD Protection z Improved EMI ts z Current Mode Control z Built-in Slope pensation n z Leading Edge Blanking (LEB) e z Programmable Switching Frequency z All Pins Floating Protection m z Audio Noise Free Operation u z 800m A Gate Drive Capability z External Programmable Over Temperature c Protection (OTP) o z OVP (Over Voltage Protection) on VDD z OLP (Over Load Protection) D z Cycle-by-cycle Current Limiting (OCP) d APPLICATIONS lle Offline AC/DC flyback converter for z Power Adaptors o z Open-frame SMPS tr z ATX Standby Power z Battery Charger Coxsemi Con TYPICAL APPLICATION demands decrease, the IC enters into Coxsemi’s Proprietary “Smooth Frequency Foldback” for high power conversion efficiency without audio noise generated. When the current set-point falls below a given value, e.g. the output power demand diminishes, the IC automatically enters into burst mode and provides excellent efficiency without audio noise. The IC also integrates Coxsemi’s Proprietary “Constant Power Limiting” block to achieve constant output power limit from 90VAC to 264VAC. COX3165 integrates functions and protections of Under Voltage Lockout (UVLO), VDD Over Voltage Protection (OVP), Soft Start, External Programmable Over Temperature Protection (OTP), Cycle-by-cycle Current...