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| KA5Q0765RT SPS The SPS product family is specially designed for an off-line SMPS with minimal external components. The SPS consist of high voltage power SenseFET and current mode PWM IC. Included PWM controller features integrated fixed oscillator, under voltage lock out, leading edge blanking, optimized gate turn-on/turnoff driver, thermal shut down protection, over voltage protection, and temperature compensated precision current sources for loop compensation and fault protection circuitry. Compared to discrete MOSFET and controller or RCC switching converter solution, a SPS can reduce total component count, design size, and weight and at the same time increase efficiency, productivity, and system reliability. It has a basic platform well suited for cost-effective design in QuasiResonant Converter as C-TV power supply. TO -22 0F -5L SPS 1. Drain 2. GND 3. VCC 4. FB 5. Sync FEATURES * * * * * * * * * Quasi Resonant Converter Controller Internal Burst mode Controller for Stand-by mode Pulse by pulse current limiting Over current Latch protection Over voltage protection (Vsync: Min. 11V) Internal thermal shutdown function Under voltage lockout Internal high voltage sense FET Auto-restart mode ORDERING INFORMATION Device KA5Q0765RT Package TO-220F-5L Topr (C) -25C to +85C BLOCK DIAGRAM + - Sync. REF. PSR REF. Burst mode controller Internal Bias Vref - + UVLO 3 1 - + 5 OSC S R _ Q Ron OVP LEB Roff PWM 4 1.7R Ifb R - + Vfb offset Ids + Vds REF. - S TSD 150oC Power-on Reset Q R Delay 500nS + - OCL REF. Vz Rsense 2 REV. B 1999 Fairchild Semiconductor Corporation KA5Q0765RT ABSOLUTE MAXIMUM RATINGS Characteristic Drain-source (GND) voltage (1) Drain-Gate voltage (RGS=1M) Gate-source (GND) voltage Drain current pulsed (4) (2) SPS Symbol VDSS VDGR VGS IDM EAS IAS ID ID VCC VFB PD (wt H/S) Derating TOPR TSTG Value 650 650 30 28.0 570 20 7.0 5.6 30 -0.3 to VSD 135 1.1 -25 to +85 -55 to +150 Unit V V V ADC mJ A ADC ADC V V W W/C C C Single pulsed avalanche energy (3) Avalanche current Continuous drain current (TC=25C) Continuous drain current (TC=100C) Supply voltage Analog input voltage range Total power dissipation Operating temperature Storage temperature NOTES: 1. Tj=25C to 150C 2. Repetitive rating: Pulse width limited by maximum junction temperature 3. L=24mH, starting Tj=25C 4. L=13uH, starting Tj=25C KA5Q0765RT ELECTRICAL CHARACTERISTICS (SFET part) (Ta=25C unless otherwise specified) Characteristic Drain-source breakdown voltage Zero gate voltage drain current Symbol BVDSS IDSS Test condition VGS=0V, ID=50A VDS=Max., Rating, VGS=0V VDS=0.8Max., Rating, VGS=0V, TC=125C Static drain-source on resistance (note) RDS(ON) Forward transconductance (note) Input capacitance Output capacitance Reverse transfer capacitance Turn on delay time Rise time Turn off delay time Fall time Total gate charge (gate-source+gate-drain) Gate-source charge Gate-drain (Miller) charge gfs Ciss Coss Crss td(on) tr td(off) tf Qg Qgs Qgd VDD=0.5BVDSS, ID=7.0A (MOSFET switching time are essentially independent of operating temperature) VGS=10V, ID=7.0A, VDS=0.5BVDSS (MOSFET switching time are essentially independent of operating temperature) VGS=10V, ID=4.0A VDS=15V, ID=4.0A VGS=0V, VDS=25V, f=1MHz Min. 650 - - - 3.0 - - - - - - - - - - Typ. - - - 1.25 - 1600 310 120 25 55 80 50 - 9.3 29.3 SPS Max. - 200 500 1.6 - - - - - - - - 72 - - Unit V A A S pF nS nC NOTE: Pulse test: Pulse width 300S, duty cycle 2% KA5Q0765RT ELECTRICAL CHARACTERISTICS (Control part) (Ta=25C unless otherwise specified) Characteristic SENSE FET SECTION Drain to PKG Breakdown voltage Drain to Source Breakdown voltage Drain to Source Leakage current OSCILLATOR SECTION Initial Frequency Voltage Stability Temperature Stability Maximum Duty Cycle Minimum Duty Cycle UVLO SECTION Start Threshold Voltage Stop Threshold Voltage FEEDBACK SECTION Feedback Source Current Shotdown Feedback Voltage Shutdown Delay Current PROTECTION SECTION Over Current Protection Over Current Latch Voltage Thermal shutdown Temp. SYNC SECTION Normal Sync High Threshold Voltage Normal Sync Low Threshold Voltage Burst High Threshold Voltage Burst Low Threshold Voltage VNSH VNSL VBSH VBSL VCC=16V, Vfb=5V VCC=16V, Vfb=5V VCC=10.5V, Vfb=0V VCC=10.5V, Vfb=0V 4.0 2.3 3.2 1.1 4.6 2.6 3.6 1.3 note 2 note 2 SPS Symbol Test condition Min. Typ. - - - Max. - - 200 Unit BVpkg BVdss Idss 60Hz AC, Ta=25C Vdrain=650V, Ta=25C Vdrain=650V, Ta=25C - 12 V V A FOSC FSTABLE FOSC DMAX DMIN VSTART VSTOP VFB=GND VFB=GND VFB=GND Vfb>6.9V VFB=5V Vsync>11V 18 0 0 92 - 20 1 5 95 - 22 3 10 98 0 KHz % % % % 14 8 15 9 16 10 V V IFB VSD IDELAY VOVP VOCL TSD 0.7 6.9 4 0.9 7.5 5 1.1 8.1 6 mA V A 11 - - 0.9 140 12 1.0 160 13 1.1 - V V C 5.2 2.9 4.0 1.5 V V V V KA5Q0765RT ELECTRICAL CHARACTERISTICS (Continued) (Ta=25C unless otherwise specified) SPS Characteristic BURST MODE SECTION Burst mode Low Threshold Voltage Burst mode High Threshold Voltage Burst mode Enable Feedback voltage Burst mode Peak Current Limit Symbol Test condition Min. Typ. Max. Unit VBURL VBURH VBEN IBU_PK VPR Vfb=0V Vfb=0V VCC=10.5V VCC=10.5V Ifb=700A, Vfb=4V - - 10.4 11.4 0.7 0.65 11.0 12.0 1.0 0.85 11.6 12.6 1.3 1.0 V V V V PRIMARY SIDE REGULATION SECTION Primary Regulation Threshold Voltage 32.0 2.0 32.5 2.6 33.0 - V mA/V Primary Regulation Thansconductance GPR CURRENT LIMIT (SELF-PROTECTION) SECTION Peak Current Limit note 3 START UP CURRENT Start up Current Operatig Supply Current noet 1 IPK ISTART IOP IOP(MIN) IOP(MAX) 4.4 - - 5.0 5.6 A Vfb=GND, VCC=14V Vfb=GND, VCC=16V Vfb=GND, VCC=12V Vfb=GND, VCC=28V 0.1 10 0.2 18 mA mA NOTE: 1. These parameters, although guaranteed, are not 100% tested in production 2. These parameters, although guaranteed, are tested in EDS (wafer test) process 3. These parameters indicate inductor current KA5Q0765RT TYPICAL PERFORMANCE CHARACTERISTICS SPS Star t V oltage 1.10 1.05 1.00 0.95 0.90 -25 1.10 1.05 1.00 0.95 0.90 -25 Stop V oltage 0 25 50 75 Temp.( ) 100 125 150 0 25 50 75 Temp() 100 125 150 Stan d -by Cur r e n t 1.40 1.20 1.00 0.80 0.60 -25 1.10 1.05 1.00 0.95 0.90 -25 Oper tin g Cur r e n t 0 25 50 75 Temp() 100 125 150 0 25 50 75 Temp() 100 125 150 F r eqen cy 1.10 1.05 1.00 0.95 0.90 -25 1.10 1.05 1.00 0.95 0.90 -25 M ax imum Duty 0 25 50 75 Temp() 100 125 150 0 25 50 75 Temp() 100 125 150 KA5Q0765RT TYPICAL PERFORMANCE CHARACTERISTICS (Continued) SPS F e ed bac k Offse t V oltage 1.40 1.20 1.00 0.80 0.60 -25 1.20 1.10 1.00 0.90 0.80 -25 F ee d bac k Sour c e Cur r en t 0 25 50 75 Temp() 100 125 150 0 25 50 75 Temp() 100 125 150 Ove r V oltage P r ote c tion 1.10 1.05 1.00 0.95 0.90 -25 1.10 1.05 1.00 0.95 0.90 -25 Sh utDow n F ee d bac k V oltage 0 25 50 75 Temp() 100 125 150 0 25 50 75 Temp() 100 125 150 ShutDo wn De lay Curre nt 1.10 1.05 1.00 0.95 0.90 -25 1.40 1.20 1.00 0.80 B urs t Mo d e E nab le F e e d b ac k Vo ltag e 0 25 50 75 Temp() 100 125 150 0.60 -25 0 25 50 75 Temp() 100 125 150 KA5Q0765RT TYPICAL PERFORMANCE CHARACTERISTICS (Continued) SPS Bur st M od e L ow Th r esh old V oltage 1.10 1.05 1.00 0.95 0.90 -25 1.10 1.05 1.00 0.95 Bur st M od e H igh Th r e sh old V oltage 0 25 50 75 Temp() 100 125 150 0.90 -25 0 25 50 75 Temp() 100 125 150 1.10 1.05 1.00 0.95 0.90 -25 Bur st M od e Sy n c . H igh Th r e sh old V oltage 1.10 1.05 1.00 0.95 0.90 -25 Bur st M od e Sy n c . L ow Th r e sh old V oltage 0 25 50 75 Temp() 100 125 150 0 25 50 75 Temp() 100 125 150 P r imar y V olatge 1.02 1.01 1.00 0.99 0.98 -25 1.20 1.10 1.00 0.90 0.80 -25 P r imar y M od e Gain 0 25 50 75 Temp() 100 125 150 0 25 50 75 Temp() 100 125 150 KA5Q0765RT TYPICAL PERFORMANCE CHARACTERISTICS (Continued) SPS P e ak Cur r e n t L imit 1.10 1.05 1.00 0.95 0.90 -25 1.10 1.05 1.00 0.95 0.90 -25 Bur st M od e P e ak Cur r e n t L imit 0 25 50 75 Temp() 100 125 150 0 25 50 75 Temp() 100 125 150 N or mal M od e Sy n c . H igh Th r e sh old V olatge Bur st M od e Sy n c . L ow Th r e sh old V oltage 1.10 1.05 1.00 0.95 0.90 -25 1.10 1.05 1.00 0.95 0.90 -25 0 25 50 75 Temp() 100 125 150 0 25 50 75 100 125 150 Temp() KA5Q0765RT LIFE SUPPORT POLICY FAIRCHILD'S PRODUCTS ARE NOT AUTHORIZED FOR USE AS CRITICAL COMPONENTS IN LIFE SUPPORT DEVICES OR SYSTEMS WITHOUT THE EXPRESS WRITTEN APPROVAL OF THE PRESIDENT OF FAIRCHILD SEMICONDUCTOR CORPORATION. As used herein: 1. Life support devices or systems are devices or systems which, (a) are intended for surgical implant into the body, or (b) support or sustain life, and (c) whose failure to perform when properly used in accordance with instructions for use provided in the labeling, can be reasonably expected to result in a significant injury of the user. www.fairchildsemi.com 12/28/99 0.0m 001 Stock#DSxxxxxxxx 1999 Fairchild Semiconductor Corporation 2. A critical component in any component of a life support device or system whose failure to perform can be reasonably expected to cause the failure of the life support device or system, or to affect its safety or effectiveness. |
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