FL7930C ONSEMI | Alldatasheet

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© 2013 ON Semiconductor Components Industries, LLC Publication Order Number ff August-2017 Rev 2 FL7930CMX-G/D FL7930C — Single-Stage Flyback and Boundary-Mode PFC Controller for Lighting FL7930C Single-Stage Flyback and Boundary-Mode PFC Controller for Lighting Features ! PFC-Ready Signal ! VIN-Absent Detection ! Maximum Switching Frequency Limitation ! Internal Soft-Start and Startup without Overshoot ! Internal Total Harmonic Distortion (THD) Optimizer ! Precise Adjustable Output Over-Voltage Protection ! Open-Feedback Protection and Disable Function ! Zero-Current Detector (ZCD) ! 150 µs Internal Startup Timer ! MOSFET Over-Current Protection (OCP) ! Under-Voltage Lockout with 3.5 V Hysteresis ! Low Startup and Operating Current ! Totem-Pole Output with High State Clamp ! +500/-800 mA Peak Gate Drive Current ! 8-Pin, Small Outline Package (SOP) Applications ! Ballast ! General LED Lighting ! Industrial, Commercial, and Residential Fixtures ! Outdoor Lighting: Street, Roadway, Parking, Construction, Ornamental LED Lighting Fixtures

Figure 1. Typical Boost PFC Application Internal Block Diagram VCC

6 GND

Figure 2. Functional Block Diagram

www.onsemi.com 4 FL7930C — Single-Stage Flyback and Boundary-Mode PFC Controller for Lighting

www.onsemi.com 5 FL7930C — Single-Stage Flyback and Boundary-Mode PFC Controller for Lighting

www.onsemi.com 6 FL7930C — Single-Stage Flyback and Boundary-Mode PFC Controller for Lighting

www.onsemi.com 7 FL7930C — Single-Stage Flyback and Boundary-Mode PFC Controller for Lighting Comparison of FL6961 and FL7930C Function FL6961 FL7930C FL7930C Advantages PFC Ready Pin None Integrated ! No External Circuit for PFC Output UVLO ! Reduce Power Loss and BOM Cost Caused by PFC Out UVLO Circuit ! Versatile Open-Drain Pin Frequency Limit None Integrated ! Abnormal CCM Operation Prohibited ! Abnormal Inductor Current Accumulation Can Be Prohibited VIN-Absent Detection None Integrated ! Increase System Reliability by Testing for Input Supply Voltage ! Guarantee Stable Operation at Short Electric Power Failure Soft-Start and Startup without Overshoot None Integrated ! Reduce Voltage and Current Stress at Startup ! Eliminate Audible Noise due to Unwanted OVP Triggering THD Optimizer External Internal ! No External Resistor Needed TSD None 140°C with 60°C Hysteresis ! Stable and Reliable TSD Operation ! Converter Temperature Range Limited Range Control Range Compensation None Integrated Comparison of FL7930B and FL7930C Function FL7930B FL7930C FL7930C Remark RDY Pin None Integrated ! If PFC Rated Output Voltage is Assumed 390 V: VRDY_HIGH Trigger Voltage = 349 V, VRDY_LOW Trigger Voltage = 320 V OVP Pin Integrated None

  1. Gate Driver Output: FL7930C contains a single totem-pole output stage designed for a direct drive of the power MOSFET. The drive output is capable of up to +500 / -800 mA peak current with a typical rise and

fall time of 50 ns with 1 nF load. The output voltage is clamped to 13 V to protect the MOSFET gate even if the VCC voltage is higher than 13 V.

  1. A stabilizing capacitor for VCC is recommended as close as possible to the VCC and ground pins. If it is difficult, place the SMD capacitor as close to the corresponding pins as possible.

Figure 44. Recommended PCB Layout

Circuit for VCC. If external VCC is used, this circuit is not needed. Circuit for VCC for another power stage thus components structure and values may vary. Figure 45. Demonstration Circuit

www.onsemi.com 20 FL7930C — Critical Conduction Mode PFC Controller for Lighting

B) ALL DIMENSIONS ARE IN MILLIMETERS. D) LANDPATTERN STANDARD: SOIC127P600X175-8M.

1.75 MAX

0.25 C B A

www.onsemi.com 22 FL7930C — Critical Conduction Mode PFC Controller for Lighting N. American Technical Support: 800-282-9855 Toll Free USA/Canada. Europe, Middle East and Africa Technical Support: Phone: 421 33 790 2910 Japan Customer Focus Center Phone: 81-3-5817-1050 ON Semiconductor Website: www.onsemi.com Order Literature: http://www.onsemi.com/orderlit For additional information, please contact your local Sales Representative