SFL100

SFL100 Constant Voltage and Constant Current Controller FEATURES ◆ Secondary Side Constant Voltage (CV) and Constant Current (CC) Control ◆ Wide VCC Operating Range (3.3V to 36V) ◆ Trimmed 1% Internal Voltage Reference ◆ Wired or Open-Drain Output Stages ◆ Low External Component Count ◆ Low Supply Current: 0.5mA ◆ Easy Frequency Compensation ◆ Operating Temperature Range: -40 to 125℃ APPLICATIONS ◆ Battery chargers ◆ Adaptors ◆ AC/DC LED lighting GENERAL DESCRIPTION SFL100 is a highly integrated solution for SMPS applications requiring a dual control loop to perform CV (constant voltage) and CC (constant current) regulation. SFL100 has wide VCC operating range (3.3V to 36V). The IC integrates a 1.21V voltage reference with ± 1% accuracy, two Op-Amps (with OR-d open drain outputs), and a low side current sensing circuit. The voltage reference, along with one Op-Amp, is the core of the voltage control loop; the current sensing circuit and the other Op-Amp make...