Onsemi NCP1345Q01 | Demoboard EVBUM2819/D

Beschreibung

This evaluation board user’s manual describes a 65 W,Type C interface PD3.0, universal AC input, constant voltage power supply intended for smart phone, PAD and NB adaptor supporting PD3.0 or PPS protocol, where isolation from the AC mains is required, and low cost, high efficiency,and low standby power are essential.The featured power supply is a simple QR flyback topology utilizing onsemi’s NCP1345 HF PWM controller,NCP4307 synchronous rectified controller, FDMS86180 synchronous MOSFET and NTTFS4C02 Switch MOSFET. This Design Note provides the complete circuit schematic details, PCB and BOM for 65 W Type C Interface PD3.0 Power adapter solution which supports PD output (5 V / 3 A,9 V / 3 A, 12 V / 3 A, 15 V / 3 A, 20 V / 3.25 A).This design combined with onsemi’s FUSB15101 PD3.0 protocol controller to provide PD3.0 and PPS functions.This design also proposes a dual auxiliary power supply to supply PWM controller, the PWM controller is supplied by high voltage auxiliary voltage at low output voltage and supplied by low voltage auxiliary voltage at high output voltage.NCP1345 is next generation of NCP1342 HF QR controller, it provides precise primary CC also precise primary OVP protection, built in external dual Vcc circuit,improved jittering function which eliminated large output ripple also adaptive gate drive to reduce secondary voltage stress.This design also uses NCP4307 synchronous rectified controller which eliminated external Vcc circuit at low output, also placed on high side or low side.

Eigenschaften

• Universal AC input range (90 – 264 Vac)
• Very low standby (5 V & 230 Vac) power consumption with no cable plug in
• Very low ripple and noise
• Inherent OVP,SCP and OCP protection
• High operation frequency up to 190 kHz at 230 V and fullload
• High power density (1.62 W/cm3)
• Quick switching off FET while unplugging cable and switching on FET at Vbus dropping to 5 V while plugging cable againQuasi−Resonant current mode control with Valley Switching
• Valley lockout avoids audible noise at valley jumping operation
• Support TYPE−C PD3.0 & PPS protocol
• Adaptive Output OVP and UVP
• Open loop protection
• PCBA size: 46 mm x 46 mm x 19 mm

Typische Anwendungen

• Power Banks
• Wall Chargers forMobile Phones and Tablets and Computing Devices, AC−DC USB PD Compliant Adapters, Cigarette Lighter Adapters

Weiterführende Informationen

• Datenblatt
• Produktseite des IC-Herstellers