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| www.fairchildsemi.com KA1L0380B/KA1L0380RB/ KA1M0380RB/KA1H0380RB Fairchild Power Switch(FPS) Features * * * * * * * * * * * Precision fixed operating frequency KA1L0380B/KA1L0380RB (50KHz) KA1M0380RB (67KHz) KA1H0380RB (100KHz) Pulse by pulse over current limiting Over load protection Over voltage protection (Min. 23V) Internal thermal shutdown function Under voltage lockout Internal high voltage sense FET Auto restart (KA1L0380RB/KA1M0380RB/KA1H0380RB) Description The Fairchild Power Switch(FPS) product family is specially designed for an off line SMPS with minimal external components. The Fairchild Power Switch(FPS) consist of high voltage power SenseFET and current mode PWM controller IC. PWM controller features integrated fixed oscillator, under voltage lock out, leading edge blanking, optimized gate turn-on/ turn-off driver, thermal shut down protection, over voltage protection, temperature compensated precision current sources for loop compensation and fault protection circuit. compared to discrete MOSFET and controller or RCC switching converter solution, a Fairchild Power Switch(FPS) 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-220F-4L 1 1. GND 2. DRAIN 3. VCC 4. FB Internal Block Diagram #3 VCC 32V 5V Vref Good logic OSC 9V 5A #4 FB 2.5R 1R + 7.5V - + 25V - Thermal S/D OVER VOLTAGE S/D 1mA - + S R L.E.B 0.1V S R Q #1 GND Q Internal bias #2 DRAIN SFET Power on reset Rev.1.0.2 (c)2001 Fairchild Semiconductor Corporation KA1L0380B/KA1L0380RB/KA1M0380RB/KA1H0380RB Absolute Maximum Ratings Parameter Maximum Drain voltage (1) Symbol VD,MAX VDGR VGS IDM (3) Value 800 800 30 12 95 6 3.0 2.1 30 -0.3 to VSD 35 0.28 -25 to +85 -55 to +150 Unit V V V ADC mJ A ADC ADC V V W W/C C C Drain Gate voltage (RGS=1M) Gate source (GND) voltage Drain current pulsed Avalanche current(4) (2) Single pulsed avalanche energy EAS IAS ID ID VCC,MAX VFB PD Derating TA TSTG Continuous drain current (TC=25C) Continuous drain current (TC=100C) Maximum Supply voltage Input voltage range Total power dissipation Operating ambient temperature Storage temperature Notes: 1. Tj=25C to 150C 2. Repetitive rating: Pulse width limited by maximum junction temperature 3. L=51mH, VDD=50V, RG=25, starting Tj=25C 4. L=13H, starting Tj=25C 2 KA1L0380B/KA1L0380RB/KA1M0380RB/KA1H0380RB Electrical Characteristics (SFET part) (Ta=25C unless otherwise specified) Parameter Drain source breakdown voltage Symbol BVDSS Condition VGS=0V, ID=50A VDS=Max., Rating, VGS=0V VDS=0.8Max., Rating, VGS=0V, TC=125C VGS=10V, ID=1.5A VDS=15V, ID=1.5A VGS=0V, VDS=25V, f=1MHz VDD=0.5BVDSS, ID=3.0A (MOSFET switching time are essentially independent of operating temperature) VGS=10V, ID=3.0A, VDS=0.5BVDSS (MOSFET switching time are essentially independent of operating temperature) Min. 800 1.5 Typ. 4.0 2.5 779 75.6 24.9 40 95 150 60 7.2 12.1 Max. 50 200 5.0 34 nC nS pF Unit V A A S Zero gate voltage drain current Static drain-source on resistance (Note) 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 Note: Pulse test: Pulse width 300S, duty cycle 2% 1 S = --R IDSS RDS(ON) gfs Ciss Coss Crss td(on) tr td(off) tf Qg Qgs Qgd 3 KA1L0380B/KA1L0380RB/KA1M0380RB/KA1H0380RB Electrical Characteristics (CONTROL part) (Ta=25C unless otherwise specified) Parameter UVLO SECTION Start threshold voltage Stop threshold voltage OSCILLATOR SECTION KA1L0380B Initial accuracy FOSC KA1L0380RB KA1M0380RB KA1H0380RB Frequency change with temperature (2) F/T -25C Ta +85C KA1L0380B Maximum duty cycle Dmax KA1L0380RB KA1M0380RB KA1H0380RB FEEDBACK SECTION Feedback source current Shutdown Feedback voltage Shutdown delay current REFERENCE SECTION Output voltage (1) Temperature Stability Peak Current Limit PROTECTION SECTION Thermal shutdown temperature (Tj) (1) Over voltage protection voltage TOTAL DEVICE SECTION Start Up current Operating supply current (control part only) VCC zener voltage ISTART IOP VZ VCC=14V Ta=25C ICC=20mA 0.1 6 30 0.3 12 32.5 0.45 18 35 mA mA V TSD VOVP 140 23 160 25 28 C V (1)(2) Symbol VSTART VSTOP Condition After turn on Min. 14 9 45 45 61 90 74 74 74 64 0.7 6.9 4.0 4.80 1.89 Typ. 15 10 50 50 67 100 5 77 77 77 67 0.9 7.5 5.0 5.00 0.3 2.15 Max. 16 11 55 55 73 110 10 80 80 80 70 1.1 8.1 6.0 5.20 0.6 2.41 Unit V V kHz % % IFB VSD Idelay Vref Vref/T IOVER Ta=25C, 0V Vfb 3V Ta=25C, 5V Vfb VSD Ta=25C -25C Ta +85C Max. inductor current mA V A V mV/C A CURRENT LIMIT (SELF-PROTECTION) SECTION Note: 1. These parameters, although guaranteed, are not 100% tested in production 2. These parameters, although guaranteed, are tested in EDS (wafer test) process 4 KA1L0380B/KA1L0380RB/KA1M0380RB/KA1H0380RB Typical Performance Characteristics (These characteristic graphs are normalized at Ta=25C) Fig.1 Operating Frequency 1.2 1.15 1.1 1.05 Fosc 1 0.95 0.9 0.85 0.8 -25 0 25 50 75 100 125 150 1.2 1.15 1.1 1.05 Ifb 1 0.95 0.9 0.85 0.8 -25 Fig.2 Feedback Source Current 0 25 50 75 100 125 150 Temperature [C] Temperature [C] Figure 1. Operating Frequency Figure 2. Feedback Source Current Fig.3 Operating Current 1.2 1.15 1.1 1.05 IIop 1 OP 0.95 0.9 0.85 0.8 -25 1.1 1.05 Fig.4 Max Inductor Current Ipeak Iover 1 0.95 0.9 0.85 0 25 50 75 100 125 150 0.8 -25 0 25 50 75 100 125 150 Temperature [C] Temperature [C] Figure 3. Operating Supply Current Figure 4. Peak Current Limit 1.5 1.3 Fig.5 Start up Current 1.15 1.1 1.05 Fig.6 Start Threshold Voltage IST Istart 1.1 0.9 0.7 0.5 -25 Vth(H) 1 Vstart 0.95 0.9 0 25 50 75 100 125 150 0.85 -25 0 25 50 75 100 125 150 Temperature [C] Temperature [C] Figure 5. Start up Current Figure 6. Start Threshold Voltage 5 KA1L0380B/KA1L0380RB/KA1M0380RB/KA1H0380RB 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 Vth(L) 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 Temperature [C] Temperature [C] Figure 7. Stop Threshold Voltage Figure 8. Maximum Duty Cycle 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 Temperature [C] Temperature [C] Figure 9. VCC Zener Voltage Figure 10. Shutdown Feedback Voltage 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 Temperature [C] Temperature [C] Figure 11. Shutdown Delay Current Figure 12. Over Voltage Protection 6 KA1L0380B/KA1L0380RB/KA1M0380RB/KA1H0380RB Typical Performance Characteristics (Continued) (These characteristic grahps are normalized at Ta=25C) Fig.14 Drain Source Turn-on Resistance 2.5 2 1.5 ( Rdson )1 0.5 0 -25 0 25 50 75 100 125 150 Temperature [C] Figure 13. Static Drain-Source on Resistance 7 KA1L0380B/KA1L0380RB/KA1M0380RB/KA1H0380RB Package Dimensions TO-220F-4L 8 KA1L0380B/KA1L0380RB/KA1M0380RB/KA1H0380RB Package Dimensions (Continued) TO-220F-4L(Forming) 9 KA1L0380B/KA1L0380RB/KA1M0380RB/KA1H0380RB Ordering Information Product Number KA1L0380B-TU KA1L0380B-YDTU KA1L0380RB-TU KA1L0380RB-YDTU KA1M0380RB-TU KA1M0380RB-YDTU KA1H0380RB-TU KA1H0380RB-YDTU TU : Non Forming Type YDTU : Forming Type Package TO-220F-4L TO-220F-4L(Forming) TO-220F-4L TO-220F-4L(Forming) TO-220F-4L TO-220F-4L(Forming) TO-220F-4L TO-220F-4L(Forming) Rating 800V, 3A 800V, 3A 800V, 3A 800V, 3A Fosc 50kHz 50kHz 67kHz 100kHz DISCLAIMER FAIRCHILD SEMICONDUCTOR RESERVES THE RIGHT TO MAKE CHANGES WITHOUT FURTHER NOTICE TO ANY PRODUCTS HEREIN TO IMPROVE RELIABILITY, FUNCTION OR DESIGN. FAIRCHILD DOES NOT ASSUME ANY LIABILITY ARISING OUT OF THE APPLICATION OR USE OF ANY PRODUCT OR CIRCUIT DESCRIBED HEREIN; NEITHER DOES IT CONVEY ANY LICENSE UNDER ITS PATENT RIGHTS, NOR THE RIGHTS OF OTHERS. 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 11/23/01 0.0m 001 Stock#DSxxxxxxxx 2001 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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