UCC28711DR

恒定电压，恒定电流控制器，原边调节 Constant-Voltage, Constant-Current Controller With Primary-Side Regulation

DESCRIPON

The UCC28710 family of flyback power supply controllers provides isolated-output Constant-Voltage CV and Constant-Current CC output regulation without the use of an optical coupler. The devices

process information from the primary power switch and an auxiliary flyback winding for precise control of output voltage and current.

FEATURES

• < 10-mW No-Load Power

APPLICATIONS

• USB-Compliant Adapters and Chargers for

Consumer Electronics

– Smart phones

– Tablet computers

– Cameras

• Standby Supply for TV and Desktop

• White Goods

• Primary-Side Regulation PSR Eliminates Opto-Coupler

• ±5% Voltage and Current Regulation Across Line and Load

• 700-V Start-Up Switch

• 100-kHz Maximum Switching Frequency Enables High-Power Density Charger Designs

• Quasi-Resonant Valley-Switching Operation for Highest Overall Efficiency

• Frequency Jitter to Ease EMI Compliance

• Wide VDD Range Allows Small Bias Capacitor

• Clamped Gate-Drive Output for MOSFET

• Overvoltage, Low-Line, and Overcurrent Protection Functions

• Programmable Cable Compensation UCC28710, UCC28714 and UCC28715

• NTC Resistor Interface UCC28711, UCC28712 and UCC28713 with Fixed Cable Compensation Options

• SOIC-7 Package