描述 Description

The NCP1345 is a highly integrated quasi-resonant flyback controller suitable for designing high-performance off-line USB-PD and USB Type-C power converters. The included dual-pin VCC architecture allows direct connection to the aux winding for simplified VCC management with a reduced parts count and increased performance.The NCP1345 also features a precise, primary side based output current limiting circuit to ensure a constant output current limit regardless of programmed output voltage, or nameplate output power.

特性 Features

? 150-V Wide Range Vcc Architecture
? Reduces external part counts
? Auto-Tuning Skip
? Adjusts skip entry based on VOUT
? Rapid Frequency Foldback
? Improved Light Load Efficiency
? Constant Output Current Limiting
? Meet LPS(Limited Power Source) requirements in PPS
? SR Spike Reduction Circuitry (Adaptive Gate Drive)
? Enables Lower Voltage Rated SR FETs
? Improved Frequency Jittering
? Softer EMI Signature
? 350 KHz high frequency QR
? Enable smaller magnetic designs
? Internal 700 V Startup w X2 discharge
? Improve standby power

應(yīng)用 Application

? USB PD
? Phone, Tablet, & Notebook Chargers
? Aftermarket USB PD Multi-Port Chargers
? USB C Enabled Wall Sockets