This third-generation Primary Side Regulation (PSR) and highly integrated PWM
controller provides several features to enhance the performance of low-power Flyback Converters
The proprietary topology, TRUECURRENT?, of FSEZ1317
enables precise CC regulation and simplified circuit design for battery- charger applications. A low-cost, smaller, and lighter charger results, as compared to a conventional design or a linear Transformer
To minimize standby power consumption, the proprietary green mode provides off-time modulation to linearly decrease PWM
frequency under light-load conditions. Green mode assists the power supply in meeting power conservation requirements. By using the FSEZ1317
a charger can be implemented with few external components and minimized cost. A typical output CV/CC characteristic envelope is shown in Figure 1.