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| Preliminary KA5M0765RC 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 frequency oscillator, under voltage lock-out, leading edge blanking, optimized gate turn-on/turn-off driver, thermal shutdown protection, over voltage protection, and temperature compensated precision current sources for loop compensation and fault protection circuitry. Compared to discrete MOSFET and PWM controller or RCC solution, a SPS can reduce total component count, design size, weight and at the same time increase efficiency, productivity, and system reliability. It has a basic platform well suited for cost-effective design in either a flyback converter or a forward converter. TO -22 0F -5L SPS 1. GND 2. Drain 3. Vcc 4. FB FEATURES * * * * * * * * * Precision fixed operating frequency (70kHz) Low start-up current (Typ. 100mA) Pulse by pulse current limiting Over current protection Over voltage protection (Min. 25V) Internal thermal shutdown function Under voltage lockout Internal high voltage sense FET Auto-restart mode ORDERING INFORMATION Device KA5M0765RC Package TO-220F-5L Topr (C) -25C to +85C BLOCK DIAGRAM REV. B 1999 Fairchild Semiconductor Corporation Preliminary KA5M0765RC ABSOLUTE MAXIMUM RATINGS Characteristic Drain-source (GND) voltage (1) Drain-Gate voltage (RGS=1M) Gate-source (GND) voltage Drain current pulsed (4) (2) 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 140 1.11 -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 Preliminary KA5M0765RC 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=1.0A (MOSFET switching time are essentially independent of operating temperature) VGS=10V, ID=1.0A, VDS=0.5BVDSS (MOSFET switching time are essentially independent of operating temperature) VGS=10V, ID=0.5A VDS=50V, ID=0.5A 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. - 50 200 1.6 - - - - - - - - 72 - - Unit V A A S pF nS nC NOTE: Pulse test: Pulse width 300S, duty cycle 2% Preliminary KA5M0765RC ELECTRICAL CHARACTERISTICS (Control part) (Ta=25C unless otherwise specified) Characteristic REFERENCE SECTION Output voltage (1) Temperature Stability (1)(2) OSCILLATOR SECTION Initial accuracy Frequency change with temperature PWM SECTION Maximum duty cycle FEEDBACK SECTION Feedback source current Shutdown delay current IFB Idelay Ta=25C, 0V Symbol Test condition Min. Typ. Max. Unit Vref Vref/T Ta=25C -25CTa+85C 4.80 - 5.00 0.3 5.20 0.6 V mV/C FOSC F/T Ta=25C -25CTa+85C 61 - 67 5 73 10 kHz % OVER CURRENT PROTECTION SECTION Over current protection UVLO SECTION Start threshold voltage Minimum operating voltage TOTAL STANDBY CURRENT SECTION Start current Operating supply current (control part only) SHUTDOWN SECTION Shutdown Feedback voltage Thermal shutdown temperature (Tj) Over voltage protection (1) IL(max) Vth(H) Vth(L) 4.40 5.00 5.60 A 8.4 14 - - 9 15 9.6 16 V V IST IOPR VCC=14V VCC<28 0.1 7 0.17 12 mA mA VSD TSD VOVP Vfb>6.5V - VCC>24V 6.9 140 25 7.5 160 27 8.1 - 29 V C V NOTES: 1. These parameters, although guaranteed, are not 100% tested in production 2. These parameters, although guaranteed, are tested in EDS (wafer test) process Preliminary KA5M0765RC TYPICAL PERFORMANCE CHARACTERISTICS (SFET part) SPS Fig 1. Output Characteristics VGS Top : 15V 10V 8.0V 7.0V 6.0V 5.5V 5.0V Bottom:4.5V Fig. 2 Transfer Characteristics 10 10 ID, Drain Current [A] ID, Drain Current [A] 150 oC 1 1 @ Notes: 1. 300s Pulse Test 2. TC = 25 oC 25 oC -25 oC @Notes: 1. VDS = 30 V 2. 300 s Pulse Test 0.1 1 10 0.1 2 4 6 8 10 VDS, Drain-Source Voltage [V] VGS, Gate-Source Voltage [V] Fig. 3 On-Resistance vs. Drain Current 3.0 Fig. 4 Source-Drain Diode Forward Voltage 2.5 Drain-Source On-Resistance 2.0 Vgs=10V 1.5 Vgs=20V 1.0 IDR, Reverse Drain Current [A] 10 RDS(on) , [ ] 1 150 oC 25 oC @Notes: 1. VGS = 0V 2. 300 s Pulse Test 0.5 @ Note : Tj=25 0.0 0 2 4 6 8 10 0.1 0.4 0.6 0.8 1.0 1.2 1.4 ID,Drain Current [A] VSD, Source-Drain Voltage [V] Fig.5 Capacitance vs. Drain-Source Voltage 1800 1600 1400 Fig. 6 Gate Charge vs. Gate-Source Voltage Ciss = Cgs + Cgd (Cds = shorted) Coss = Cds + Cgd 10 VDS=130V VGS,Gate-Source Voltage[V] Capacitance [pF] 1200 1000 800 600 400 200 0 Ciss Crss = Cgd 8 VDS=320V VDS=520V 6 4 Coss Crss 1 10 2 @Note : ID=3.0A 0 0 5 10 15 20 25 VDS, Drain-Source Voltage [V] QG,Total Gate Charge [nC] Preliminary KA5M0765RC TYPICAL PERFORMANCE CHARACTERISTICS (Continued) Fig. 7 Breakdown Voltage vs. Temperature 1.2 2.5 Fig. 8 On-Resistance vs. Temperature 2.0 Drain-Source Breakdown Voltage Drain-Source On-Resistance 1.1 BVDSS, (Normalized) RDS(on), (Normalized) 1.5 1.0 1.0 @Notes: 1. VGS = 10V 2. ID = 1.5 A 0.9 @ Notes : 1. VGS = 0V 2. ID = 250A 0.5 0.8 -50 0 50 o 100 150 0.0 -50 0 50 100 150 TJ, Junction Temperature [ C] T J, Junction Temperature [oC] Fig. 9 Max. Safe Operating Area 102 Fig. 10 Max. Drain Current vs. Case Temperature ID , Drain Current [A] Operation in This Area is Limited by R DS(on) 101 10 s 100 s 1 ms 10 ms DC 3.0 2.5 ID, Drain Current [A] 103 2.0 10 0 1.5 10-1 @ Notes : 1. TC = 25 oC 2. TJ = 150 oC 3. Single Pulse 1.0 0.5 10-2 0 10 101 102 0.0 25 50 75 100 125 150 VDS , Drain-Source Voltage [V] TC, Case Temperature [oC] Fig. 11 Thermal Response 100 ZJ C(t) , Thermal Response D=0.5 0.2 0.1 0.05 0.02 0.01 10-1 @ Notes : 1. Z JC(t)=1.25 oC/W Max. 2. Duty Factor, D=t1/t2 3. TJM-TC=PDM*ZJC(t) single pulse 10-2 -5 10 10-4 10-3 10-2 10-1 100 101 t1 , Square Wave Pulse Duration [sec] Preliminary KA5M0765RC TYPICAL PERFORMANCE CHARACTERISTICS (Control part) SPS Fig.1 Operating Frequency 1.2 1.15 1.1 1.05 Fosc 1 0.95 0.9 0.85 0.8 Fig.2 Feedback Source Current 1.2 1.15 1.1 1.05 Ifb 1 0.95 0.9 0.85 0.8 -25 0 25 50 75 100 125 150 Fig.3 Operating Current 1.2 1.15 1.1 1.05 Iop 1 0.95 0.9 0.85 0.8 -25 1.1 1.05 Fig.4 Max Inductor Current Ipeak 1 0.95 0.9 0.85 0 25 50 75 100 125 150 0.8 -25 0 25 50 75 100 125 150 1.5 1.3 Fig.5 Start up Current 1.15 1.1 1.05 Fig.6 Start Threshold Voltage Istart 1.1 0.9 0.7 0.5 -25 Vstart 1 0.95 0.9 0 25 50 75 100 125 150 0.85 -25 0 25 50 75 100 125 150 Preliminary KA5M0765RC TYPICAL PERFORMANCE CHARACTERISTICS (Continued) (These characteristic graphs are normalized at Ta=25C) Fig.7 Stop Threshold Voltage 1.15 1.1 1.05 1.15 1.1 1.05 Fig.8 Maximum Duty Cycle Vstop 1 0.95 0.9 0.85 -25 0 25 50 75 100 125 150 Dmax 1 0.95 0.9 0.85 -25 0 25 50 75 100 125 150 Fig.9 Vcc Zener Voltage 1.2 1.15 1.1 1.05 Vz 1 0.95 0.9 0.85 0.8 -25 1.15 1.1 1.05 Fig.10 Shutdown Feedback Voltage Vsd 1 0.95 0.9 0 25 50 75 100 125 150 0.85 -25 0 25 50 75 100 125 150 Fig.11 Shutdown Delay Current 1.2 1.15 1.1 1.05 Idelay 1 0.95 0.9 0.85 0.8 -25 1.15 1.1 1.05 Fig.12 Over Voltage Protection Vovp 1 0.95 0.9 0 25 50 75 100 125 150 0.85 -25 0 25 50 75 100 125 150 Preliminary KA5M0765RC TYPICAL PERFORMANCE CHARACTERISTICS (Continued) (These characteristic graphs are normalized at Ta=25C) SPS Fig.13 Soft Start Voltage 1.15 1.1 1.05 2.5 2 1.5 Fig.14 Drain Source Turn-on Resistance Vss 1 0.9 0.95 0.85 -25 Rdson 1 0.5 0 25 50 75 100 125 150 0 -25 0 25 50 75 100 125 150 KA5M0765RC 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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