FAN6300HMY
数据手册.pdfFAIRCHILD SEMICONDUCTOR FAN6300HMY 控制器, PWM准谐振, 25V-10V电源, 190 kHz, SOIC-8
The is a highly integrated quasi-resonant current-mode PWM Controller provides several features to enhance the performance of flyback converters. It is suitable for high-frequency operation up to 190kHz. A built-in HV startup circuit can provide more startup current to reduce the startup time of the controller. Once the VDD voltage exceeds the turn-on threshold voltage, the HV startup function is disabled immediately to reduce power consumption. An internal valley voltage detector ensures power system operates at quasi-resonant operation over a wide-range of line voltage and any load conditions, as well as reducing switching loss to minimize switching voltage on drain of power MOSFET. To minimize standby power consumption and light-load efficiency, a proprietary green-mode function provides off-time modulation to decrease switching frequency and perform extended valley voltage switching to keep to a minimum switching voltage.
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- High-voltage startup
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- Quasi-resonant operation
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- Cycle-by-cycle current limiting
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- Peak-current-mode control
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- Leading-edge blanking LEB
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- Internal minimum tOFF
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- Internal 5ms soft-start
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- Over power compensation
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- GATE Output maximum voltage
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- Auto-recovery over-current protectionFB pin
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- Auto-recovery open-loop protectionFB pin
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- VDD pin and output voltage DET pin OVP latched