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| Semiconductor SP6300 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 * DIGITAL CONSUMER * AC-DC ADAPTERS/CHARGERS * PRINTERS, FAX MACHINES, PHOTOCOPIERS AND SCANNERS Ordering Information Type NO. SP6300P Marking SP6300 Package Code SOP-8 Outline Dimensions 5.87~6.17 3.70~3.90 1 2 3 4 8 3.18 Typ. 4.80~5.00 7 6 5 unit : mm PIN Collection 1.27 Typ. 0.52 Max. 0.27 Max. 0.27 Max. 0.46 Min. 1.24~1.44 KSD-I7F010-000 1 SP6300 Internal Block Diagram Pin Function Pin Number 1 2, 3 4 5 6, 7 8 Pin Name Vcc NC FB/OCP OUT NC GND Pin Function Description Supply voltage of both the signal part of the IC and the gate driver No Connection 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 Supply Voltage Peak Drive Output Current FB/OCP Voltage Range Power Dissipation Operating Temperature Range Storage Temperature Range Symbol VCC IOH / IOL VFB/OCP PD Topr Tstg Ratings 20 +400 / -100 -0.3 ~ +6 0.5 -25 ~ +125 -55 ~ +150 Unit V mA V W C C KSD-I7F010-000 2 SP6300 Electrical Characteristics (VCC = 11V, -25C Ta +125C ; Unless otherwise specified) Characteristic Symbol Test Conditions Min Typ Max Unit SUPPLY VOLTAGE & CURRENT SECTION Start Threshold Voltage Stop Threshold Voltage Start up Supply Current Operating Supply Current Dynamic Operating Supply Current (Note1) PROTECTION SECTION Over Voltage Threshold Thermal Shutdown Activation Temperature Latch Release Voltage Latch Holding Current FEEDBACK SECTION Feedback Threshold Voltage Css Synchronized Voltage Feedback Sink Current VFB VSYNC ISINK VFB = 1V 0.68 1.30 1.20 0.73 1.45 1.35 0.78 1.60 1.50 VOVP Tj (TSD) VRE ICC(RE) Vcc Increasing until Shut down Output Vcc Decreasing until Latch Releasing 15.3 2.5 17 140 18.7 6.0 400 VTH(ST) VTH(SP) IST ICC IDCC Vcc Increasing Vcc Decreasing after Turn on Start Threshold Voltage Vcc = VTH(ST) - 0.1V VFB = 1V Co = 1.0nF 8.5 7.2 9.5 8 3 4 10.5 8.8 100 7 10 V V V C V V V MAXIMUM & MINIMUM OFF TIME SECTION Maximum Off Time Minimum Off Time (Note1) Minimum Input Pulse Width (Note1) OUTPUT SECTION Output Voltage High Output Voltage Low Output Sink Current Output Source Current Output Voltage Rising Time Output Voltage Falling Time VOH VOL IGDSINK IGDSOURCE tr tf VFB = 0V, ISOURCE = 5mA VFB = 1V, ISINK = 5mA Vo = 7V Vo = 5V CO = 1nF CO = 1nF 9.5 10 10 300 80 150 50 10.5 50 tMAX tMIN tMIN(W) 30 60 1.5 1.0 V 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. 1 ICC vs. Ta Fig. 2 VTH(SP) vs. Ta Fig. 3 IST vs. Ta Fig. 4 VFB vs. Ta Fig. 5 VTH(ST) vs. Ta Fig. 6 VOH vs. Ta KSD-I7F010-000 4 SP6300 Electrical Characteristic Curves Fig. 7 VOL vs. Ta Fig. 8 VOUT vs. Isink 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 |
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