FLS6617 Datasheet | onsemi

Primary-Side Regulation PWM with Power MOSFET Integrated Description 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 TRUECURRENT® technology of FLS6617 enables precise CC regulation and simplified circuit design for battery- charger applications leading to lower- cost, smaller, and lighter chargers, pared 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 FLS6617, a charger can be implemented with few external ponents and minimized cost. A typical output CV/CC characteristic envelope is shown in Figure 1. Features - Low Standby Power under 30 m W - High- Voltage Startup - Fewest External ponent Counts - Constant- Voltage (CV) and Constant- Current (CC) Control without Secondary- Feedback Circuitry - Green- Mode: Linearly Decreasing PWM Frequency with Cycle Skipping - Fixed PWM Frequency at 50 k Hz with Proprietary Frequency Hopping to Solve EMI Problem - Peak- Current- Mode Control in CV Mode - Cycle- by- Cycle Current Limiting - VDD Over- Voltage Protection with Auto Restart - VDD Under- Voltage Lockout (UVLO) - Gate Output Maximum Voltage Clamped at 15 V - Fixed Over- Temperature Protection with Auto Restart - Available in the 7- Lead SOP Package - These Devices are Pb- Free, Halogen Free/BFR Free and are Ro HS pliant Applications - Battery Chargers for Cellular Phones, Cordless Phones, PDA, Digital Cameras, Power Tools, etc. - Replaces Linear Transformers and RCC SMPS .onsemi. SOIC7 CASE 751ED $Y &Z &2 &K 6617 MARKING DIAGRAM...