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Partname: | FAN6791 |
Description: | Highly Integrated, Dual-PWM Combination Controller |
Manufacturer: | Fairchild Semiconductor |
Datasheet: | PDF (724K). Click here to download *) |
The highly integrated FAN6791/3 dual PWM combination controller provides several features to enhance the performance of converters. To minimize standby power consumption, a proprietary green-mode function provides off-time modulation to linearly decrease the switching frequency at light-load conditions. To avoid acoustic-noise problems, the minimum PWM frequency is set above 20KHz. This green-mode function enables the power supply to meet international power conservation requirements. With the internal high-voltage startup circuitry, the power loss due to bleeding resistors is also eliminated. To further reduce |
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