IRIS-F6428S

Data Sheet No. PD 96940A IRIS-F6428S Features • Oscillator is provided on the monolithic control with adopting On-ChipTrimming technology. • Small temperature characteristics variation by adopting a comparator to compensate for temperature on the control part. • Low start-up circuit current (100uA max) • Built-in Active Low-Pass Filter for stabilizing the operation in case of light load • Avalanche energy guaranteed MOSFET with high VDSS • The built-in power MOSFET simplifies the surge absorption circuit since the MOSFET guarantees the avalanche energy. • No VDSS de-rating is required. • Built-in constant voltage drive circuit • Built-in step drive circuit • Built-in low frequency PRC mode (≒20kHz) • Various kinds of protection functions • Pulse-by-pulse Overcurrent Protection (OCP) • Overvoltage Protection with latch mode (OVP) • Thermal Shutdown with latch mode (TSD) IRIS-F6428S 450 0.35Ω INTEGRATED SWITCHER Package Outline TO-247 Fullpack (5 Lead) Key Specifications Type MOSFET VDSS(V) RDS(ON) MAX AC input(V) 100±15% 120±15% Pout(W) Note 1 225 290 Descriptions Note 1: The Pout (W) represents the thermal rating at Quasi-Resonant Operation, and the peak power output is obtained by approximately 120 to 140% of the above listed. When the output voltage is low and ON-duty is narrow, the Pout (W) shall become lower than that of above. IRIS-F6428S is a hybrid IC consists from power MOSFET and a controller IC, designed for Quasi-Resonant (including low frequency PRC) fly-back converter type SMPS (Switching Mode Power Supply) applications. This IC realizes high efficiency, low noise, downsizing and standardizing of a power supply system reducing external components count and simplifying the circuit designs. (Note). PRC is abbreviation of “Pulse Ratio Control” (On-width control with fixed OFF-time). Typical Connection Diagram IRIS-F6400 GND Vin D S OCP/FB www.irf.com IRIS-F6428S Absolute Maximum Ratings (Ta=25ºC) Absolute maximum ratings indicate sustained limits beyond which damage to the device may occur. All voltage parameters are absolute voltages referenced to terminals stated, all currents are defined positive into any lead. The thermal resistance and power dissipation ratings are measured under board mounted and still air conditions. Symbol IDpeak IDMAX Definition Drain Current *1 Maximum switching current *5 Terminals Max. Ratings 3-2 36 3-2 22 Units A A Note Single Pulse V2-5=0.78V Ta=-20~+125℃ Single Pulse Vdd=30V, L=50mA IL peak=9.2A EAS Vin Vth P D1 P D2 TF Top Tstg Tch Single pulse avalanche energy *2 Input voltage for control part O.C.P/F.B Pin voltage Power dissipation for MOSFET *3 Power dissipation for control part (Control IC) *4 Internal frame temperature in operation Operating ambient temperature Storage temperature Channel temperature 3-2 4-5 1-5 3-2 4-5 - 647 35 6 58 2.8 0.49 -20 ~ +125 -20 ~ +125 -40 ~ +125 150 mJ V V W W W ℃ ℃ ℃ ℃ With infintite heatsink Without heatsink Specified by Vin×Iin Refer to recommended operating temperature *1 Refer to MOS FET A.S.O curve *2 MOS FET Tch-EAS curve *3 Refer to MOS FET Ta-PD1 curve *4 Refer to TF-PD2 curve for Control IC (See page 5) *5 Maximum switching current. Fig.1 V2-5 The maximum switching current is the Drain current determined by the drive voltage of the IC and threshold voltage (Vth) of MOS FET. Therefore, in the event that voltage drop occurs between Pin 2 and Pin 5 due to patterning, the maximum switching current decreases as shown by V2-5 in Fig.1 Accordingly please use this device within the decrease value, referring to the derating curve of the maximum switching current. １- Recommended operating conditions Time for input of quasi resonant signals For the quasi resonant signal inputted to O.C.P/F.B Pin at the time of quasi resonant operation, the signal shall be wider than Tth(2). ＶO.C.P/F.B 0V Tth(2)≧1.0μsec Vth(2) www.irf.com IRIS-F6428S Electrical Characteristics (for Control IC) Electrical characteristics for control part (Ta=25℃, Vin=18V,unless otherwise specified) Symbol Vin(ON) Vin(OFF) Iin(ON) Iin(OFF) TOFF(MAX) Tth(2) TOFF(MIN) Vth(1) Vth(2) IOCP/FB Vin(OVP) Iin(H) Vin(La.OFF) Tj(TSD) Definition Operation start voltage Operation stop voltage Circuit current in operation Circuit current in non-operation Maximum OFF time Minimum time for input of quasi resonant signals *6 Minimum OFF time *7 O.C.P/F.B Pin threshold voltage 1 O.C.P/F.B Pin threshold voltage 2 O.C.P/F.B Pin extraction current O.V.P operation voltage Latch circuit sustaining current *8 Latch circuit release voltage *8 Thermal shutdown operating temperature MIN 14.4 9 45 0.68 1.3 1.2 20.5 6.6 140 Ratings TYP 16 10 0.73 1.45 1.35 22.5 - MAX 17.6 11 30 100 55 1 2 0.78 1.6 1.5 24.5 400 8.4 - Units V V mA µA µsec µsec µsec V V mA V µA V ℃ Test Conditions Vin=0→17.6V Vin=17.6→9V Vin=14V Vin=0→24.5 V Vin=24.5→8.5V Vin=24.5→6.6V *6 Refer to Recommended operating conditions (See page 2) *7 The minimum OFF time means TOFF width at the time when the minimum quasi resonant signal is inputted. *8 The latch circuit means a circuit operated O.V.P and T.S.D. Electrical Characteristics (for MOSFET) (Ta=25℃) unless otherwise specified Symbol VDSS IDSS Definition Drain-to-Source breakdown voltage Drain leakage current MIN 450 - Ratings TYP - MAX 300 0.35 250 0.85 Units V µA Ω nsec ℃ /W Test Conditions ID=300µA V5- 2 =0V(short) VDS =450V V5-2=0V(short) V5-2=10V ID=4.6A RDS(ON) On-resistance tf Switching time θch-F Thermal resistance Between channel and internal frame www.irf.com IRIS-F6428S IRIS-F6428S A.S.O. temperature derating coefficient curve IRIS-F6428S MOSFET　 A.S.O. Curve 100 Drain current limit by ON resistance Ta=25ºC Single Pulse 0.1ms 100 A.S.O. temperature derating coefficient[%] 80 D rai C urrent I D [A ] n 10 1ms 60 1 40 20 0.1 ASO temperature derating shall be made by obtaining ASO Coefficient from the left curve in your use. 0 0 20 40 60 80 100 120 Internal frame temperature TF [℃] 0.01 1 10 100 D rai n-to-Source V ol tage V D S [V ] 1000 IRIS-F6428S 　　　　　　 　　　　　 25.0 80 DMAX [A] Maximum Switching current derating curve T a=‐ ～+125 ℃ 20 IRIS-F6428S Avalanche energy derating curve 100 20.0 EAS temperature derating coefficient[%] Maximum Switchng Current I 60 15.0 10.0 40 5.0 20 0.0 0.70 0.80 0.90 1.00 1.10 1.20 V2-5 [V] 0 25 50 75 100 125 150 Channel temperature Tch [℃] www.irf.com IRIS-F6428S IRIS-F6428S MOSFET Ta-PD1 Curve 70 0.6 IRIS-F6428S MIC TF-PD2 Curve PD1=58[W] 0.5 PD2=0.49[W] 60 Power dissipation PD2[W] Power dissipation P D1[W] 50 With infinite heatsink 0.4 40 0.3 30 0.2 20 10 Without heatsink PD1=2.8[W] 0.1 0 0 20 40 60 80 100 120 140 160 0 0 20 40 60 80 100 120 140 160 Internal frame temperature TF[℃] Ambient temperature Ta[℃] IRIS-F6428S Transient thermal resistance curve 10 Transient thermal resistance θch-c[℃/W] 1 0.1 0.01 0.001 1µ 10µ 100µ time t [sec] 1m 10m 100m www.irf.com IRIS-F6428S Block Diagram 4 Vin START REG. T.S.D O.V.P. LATCH DRIVE 3 D 2 S Vth(1) + 1 OCP/FB O.S.C + Vth(2) 5 GND Lead Assignments Pin No. Symbol OCP/FB S D Vin GND IRIS 1 2 3 4 5 Description Overcurrent / Feedback Pin Source Pin Drain Pin Power supply Pin Ground Pin Function Input of overcurrent detection signal / constant voltage control signal MOSFET source MOSFET drain Input of power supply for control circuit Ground Other Functions O.V.P. – Overvoltage Protection Circuit OCP/FB S D Vin GND T.S.D. – Thermal Shutdown Circuit STEP DRV – 2 step drive circuit www.irf.com IRIS-F6428S Case Outline 5.5±0.2 5.5±0.2 3.45±0.2 2 ±0.2 φ3.2 ±0.2 IR a b 3.3±0.5 IRIS 3.3 23 ±0.3 3.35±0.1 (4) 7 ±0.5 R-end R-end 2-(R1.3) 1.35-0.1 +0.2 1.75-0.1 +0.2 0.85-0.1 4xP2.54±0.1=(10.16) +0.2 0.65-0.1 4.5±0.7 +0.2 15.6±0.2 0.5 0.5 a：Type Number F6428S b：Lot Number 1st letter：The last digit of year 2nd letter：Month 1 to 9 for Jan. to Sept., O for Oct. N for Nov. D for Dec. 3rd & 4th letter：Day Arabic Numerals 5th letter : Registration Symbol Weight : Approx. 7.5g Dimensions in mm DWG.No.：4B-E01515A 12 3 45 Material of Pin : Cu Treatment of Pin : Ni plating + solder dip Data and specifications subject to change without notice. IR WORLD HEADQUARTERS: 233 Kansas St., El Segundo, California 90245, USA Tel: (310) 252-7105 TAC FAX: (310) 252-7903 Visit us at www.irf.com for sales contact information. www.irf.com