FAN6862

The FAN6862 is designed for SMPS and integrates a frequency-hopping function that helps reduce EMI emission of a power supply with minimum line filters.

The built-in synchronized slope compensation is proprietary sawtooth compensation for constant output power limit over universal AC input range. The gate output is clamped at 18V to protect the external MOSFET from over-voltage damage.

Other protection functions include VDD over-voltage protection and over-temperature protection. For overtemperature protection, an external NTC thermistor can be applied to sense the ambient temperature. When VDD OVP or OTP is activated, an internal latch circuit latches off the controller.

FAN6862主要特性：

􀂃 Low Startup Current: 8μA

􀂃 Low Operating Current in Green Mode: 3mA

􀂃 Peak-Current Mode Operation with Cycle-by-Cycle Current Limiting

􀂃 PWM Frequency Continuously Decreasing with Burst Mode at Light Loads

􀂃 VDD Over-Voltage Protection (OVP)

􀂃 Constant Output Power Limit (Full AC Input Range)

􀂃 Internal Latch Circuit for OVP, OTP

􀂃 Fixed PWM Frequency (65KHz) with Frequency Hopping

􀂃 Feedback Open-Loop Protection with 56ms Delay

􀂃 Soft Start Time: 4ms

􀂃 400mA Driving Capability

FAN6862应用：

General-purpose switch-mode power supplies and flyback power converters, including:

􀂃 Power Adapters

􀂃 Open-Frame SMPS

􀂃 SMPS with Surge-Current Output, such as for Printers, Scanners, and Motor Drivers

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