Power > SCM1101 Series

SCM1101 Series

Input: 0 to 23V dc
Outputs: Any (Transformer dependent)
Power: 5 to 40 Watt
Tamb: -40°C to +125°C
Dims: MSOP-8
Highly integrated PWM controller

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APPLICATION

This highly integrated SCM1101A current mode PWM controller is ideal for Isolate DC DC converter applications. The PWM switching frequency is internally adjusted within a tight range. The chip’s maximum working frequency can be changed by means of external resistors. To conserve energy under light load conditions, the green mode function continuously decreases the switching frequency, thus enabling the converter to maintain high efficiency over the entire load range. For optimized standby power consumption, the power supply enters into a burst mode under no load conditions.

The SCM1101A design also integrates a series of protection features that will enhance the power system’s reliability. These functions include Vin Under-Voltage Protection, VDD Under-Voltage Lock Out (UVLO), VDD Over-Voltage Protection, Soft-Start pin SS Suspended Protection, Feedback Open-Loop Protection / Short-Circuit and Overload Protection and CS pin Suspended Protection.

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  • SCM1101A datasheet

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