GF001H: Green-Mode Fairchild Power Switch (FPS™)

The GF001H is a next-generation, Green-Mode Fairchild Power Switch (FPS™). It integrates an advanced current-mode Pulse Width Modulator (PWM) and an avalanche-rugged 700 V SenseFET in a single package, allowing auxiliary power designs with higher standby energy efficiency, reduced size, improved reliability, and lower system cost than previous solutions.

A new frequency modulation reduces EMI emission and built-in synchronized slope compensation allows stable peak-current-mode control over a wide range of input voltage.

Requiring a minimum number of external components, the GF001H provides a solid platform for cost-effective flyback converter design with low standby power consumption.

特性

• Advanced Burst Mode Operation at No-Load Condition
• 700 V High-Voltage JFET Startup Circuit
• Internal Avalanche-Rugged 700 V SenseFET
• Built-in 5 ms Soft-Start
• Peak-Current-Mode Control
• Cycle-by-Cycle Current Limiting
• Leading-Edge Blanking (LEB)
• Synchronized Slope Compensation
• Frequency Modulation to Attenuating EMI
• Internal Overload / Open-Loop Protection (OLP)
• V_DD Under-Voltage Lockout (UVLO)
• V_DD Over-Voltage Protection (OVP)
• Internal Auto-Restart Circuit (OLP, VDD OVP)
• Adjustable Peak Current Limit