SP6300 Semiconductor Quasi-Resonance Flyback Controller Description The SP6300 is specifically designed to satisfy the requirements for increased Integration and reliability in offline Quasi-resonant (ZVS: Zero Voltage Switching at switch turn-on) flyback converters. Quasi-resonant operation is achieved by means of a transformer demagnetization sensing input that triggers MOSFET's turn-on Converter's power capability variations with the mains voltage are compensated by line voltage feedforward. At light load the device features a special function that automatically lowers the operating frequency still maintaining the operation as close to ZVS as possible. In addition to very low start-up and quiescent currents, this feature helps keep low the consumption from the mains at light load and be Blue Angel and Energy Star compliant. Features • Flyback Operation with Quasi-Resonant Soft Switching for Low Power Dissipation and EMI • Temperature-Compensated Pulse-by-pulse Over-Current Protection • Latched Over-Voltage and Thermal Protection • Under-Voltage Lockout with Hysteresis • Active Low-Pass Filter for Enhanced Light-Load Stability • Regulated Soft Gate Drive Applications • TV/MONITOR SMPS • AC-DC ADAPTERS/CHARGERS • DIGITAL CONSUMER • PRINTERS, FAX MACHINES, PHOTOCOPIERS AND SCANNERS Ordering Information Type NO. Marking SP6300P SP6300 Package Code SOP-8 Outline Dimensions unit : mm 5.87~6.17 3.70~3.90 0.46 Min. 6 4 5 4.80~5.00 3 0.52 Max. 7 1.27 Typ. 2 3.18 Typ. 8 PIN Collection 0.27 Max. 1.24~1.44 0.27 Max. 1 KSD-I7F010-000 1 SP6300 Internal Block Diagram Pin Function Pin Number Pin Name Pin Function Description 1 Vcc Supply voltage of both the signal part of the IC and the gate driver 2, 3 NC No Connection 4 FB/OCP 5 OUT 6, 7 NC 8 GND Voltage mode control feedback signal, and over current detection Gate driver output. The totem-pole output driver to drive the power MOSFET. No Connection Ground. Current return for both the signal part of the IC and the gate driver. Absolute maximum ratings Characteristic Symbol Ratings Unit VCC 20 V Peak Drive Output Current IOH / IOL +400 / -100 mA FB/OCP Voltage Range VFB/OCP -0.3 ~ +6 V Power Dissipation PD 0.5 W Operating Temperature Range Topr -25 ~ +125 °C Storage Temperature Range Tstg -55 ~ +150 °C Supply Voltage KSD-I7F010-000 2 SP6300 Electrical Characteristics (VCC = 11V, -25°C ≤ Ta ≤ +125°C ; Unless otherwise specified) Characteristic Symbol Test Conditions Min Typ Max Unit SUPPLY VOLTAGE & CURRENT SECTION Start Threshold Voltage VTH(ST) Vcc Increasing 8.5 9.5 10.5 V Stop Threshold Voltage VTH(SP) Vcc Decreasing after Turn on Start Threshold Voltage 7.2 8 8.8 V Start up Supply Current IST Vcc = VTH(ST) - 0.1V - - 100 ㎂ Operating Supply Current ICC VFB = 1V - 3 7 ㎃ Dynamic Operating Supply Current (Note1) IDCC Co = 1.0nF - 4 10 ㎃ VOVP Vcc Increasing until Shut down Output 15.3 17 18.7 V Tj (TSD) - - 140 - °C Latch Release Voltage VRE Vcc Decreasing until Latch Releasing 2.5 - 6.0 V Latch Holding Current ICC(RE) - - - 400 ㎂ VFB - 0.68 0.73 0.78 V VSYNC - 1.30 1.45 1.60 V ISINK VFB = 1V 1.20 1.35 1.50 ㎃ PROTECTION SECTION Over Voltage Threshold Thermal Shutdown Activation Temperature FEEDBACK SECTION Feedback Threshold Voltage Css Synchronized Voltage Feedback Sink Current MAXIMUM & MINIMUM OFF TIME SECTION Maximum Off Time tMAX - 30 - 60 ㎲ Minimum Off Time (Note1) tMIN - - - 1.5 ㎲ Minimum Input Pulse Width (Note1) tMIN(W) - - - 1.0 ㎲ Output Voltage High VOH VFB = 0V, ISOURCE = 5mA 9.5 10 10.5 V Output Voltage Low VOL VFB = 1V, ISINK = 5mA - 10 50 ㎷ Output Sink Current IGDSINK Vo = 7V - 300 - ㎃ IGDSOURCE Vo = 5V - 80 - ㎃ Output Voltage Rising Time tr CO = 1nF - 150 - ㎱ Output Voltage Falling Time tf CO = 1nF - 50 - ㎱ OUTPUT SECTION Output Source Current Note 1 : Feedback is square wave, V1 = 0V, V2 = 2V, Td = 0, Tr = 1ns, Tf = 1ns, PW = 1us, PER =36us KSD-I7F010-000 3 SP6300 Electrical Characteristic Curves Fig. 2 VTH(SP) vs. Ta Fig. 3 IST vs. Ta Fig. 4 VFB vs. Ta ㎂ ㎃ Fig. 1 ICC vs. Ta Fig. 5 VTH(ST) vs. Ta Fig. 6 VOH vs. Ta KSD-I7F010-000 4 SP6300 Electrical Characteristic Curves Fig. 8 VOUT vs. Isink ㎷ Fig. 7 VOL vs. Ta ㎃ Fig. 9 VOUT vs. Isource ㎃ The AUK Corp. products are intended for the use as components in general electronic equipment (Office and communication equipment, measuring equipment, home appliance, etc.). Please make sure that you consult with us before you use these AUK Corp. products in equipments which require high quality and / or reliability, and in equipments which could have major impact to the welfare of human life(atomic energy control, airplane, spaceship, transportation, combustion control, all types of safety device, etc.). AUK Corp. cannot accept liability to any damage which may occur in case these AUK Corp. products were used in the mentioned equipments without prior consultation with AUK Corp.. Specifications mentioned in this publication are subject to change without notice. KSD-I7F010-000 5