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| D TO-247 G S ARF444 300W 300V 13.56MHz ARF445 300W 300V 13.56MHz THE ARF444 PIN-OUTS ARE MIRROR IMAGE OF THE ARF445. RF OPERATION (1-15MHz ) POWER MOS IV (R) N - CHANNEL ENHANCEMENT MODE RF POWER MOSFET The ARF444 and ARF445 comprise a symmetric pair of RF power transistors designed for push-pull scientific, commercial, medical and industrial RF power amplifier applications. * Specified 300 Volt, 13.56 MHz Characteristics: * Output Power = 300 Watts. * Gain = 18.7dB (Typ.) * Efficiency = 83% (Typ.) MAXIMUM RATINGS Symbol VDSS VDGO ID VGS PD RJC TJ,TSTG TL Parameter Drain-Source Voltage Drain-Gate Voltage Continuous Drain Current @ TC = 25C Gate-Source Voltage Total Power Dissipation @ TC = 25C Junction to Case * Low Cost Common Source RF Package. * Very High Breakdown for Improved Ruggedness. * Low Thermal Resistance. * Nitride Passivated Die for Improved Reliability. All Ratings: TC = 25C unless otherwise specified. ARF444/445 UNIT Volts 900 900 6.5 30 208 0.60 -55 to 150 300 Amps Volts Watts C/W C Operating and Storage Junction Temperature Range Lead Temperature: 0.063" from Case for 10 Sec. STATIC ELECTRICAL CHARACTERISTICS Symbol BVDSS Characteristic / Test Conditions Drain-Source Breakdown Voltage (VGS = 0V, ID = 250 A) 1 MIN TYP MAX UNIT Volts 900 7 250 1000 100 4 2 5.7 5 nA mhos Volts A VDS(ON) On State Drain Voltage IDSS IGSS gfs VGS(TH) (ID(ON) = 3.5A, VGS = 10V) Zero Gate Voltage Drain Current (VDS = VDSS, VGS = 0V) Zero Gate Voltage Drain Current (VDS = 0.8 VDSS, VGS = 0V, TC = 125C) Gate-Source Leakage Current (VGS = 30V, VDS = 0V) Forward Transconductance (VDS = 25V, ID = 3.5A) Gate Threshold Voltage (VDS = VGS, ID = 50mA) CAUTION: These Devices are Sensitive to Electrostatic Discharge. Proper Handling Procedures Should Be Followed. APT Website - http://www.advancedpower.com USA 405 S.W. Columbia Street Bend, Oregon 97702-1035 F-33700 Merignac - France Phone: (541) 382-8028 Phone: (33) 5 57 92 15 15 FAX: (541) 388-0364 FAX: (33) 5 56 47 97 61 EUROPE Avenue J.F. Kennedy Bat B4 Parc Cadera Nord 050-4906 Rev D DYNAMIC CHARACTERISTICS Symbol Ciss Coss Crss Characteristic Input Capacitance Output Capacitance Reverse Transfer Capacitance Test Conditions VGS = 0V VDS = 300V f = 1 MHz MIN TYP ARF444/445 MAX UNIT 1500 90 28 1800 130 50 pF FUNCTIONAL CHARACTERISTICS Symbol GPS Characteristic Common Source Amplifier Power Gain Drain Efficiency Electrical Ruggedness VSWR 30:1 Test Conditions VDD = 300V VGS = 0V Pout = 300W f = 13.56MHz MIN TYP MAX UNIT dB % 17 18.7 83 No Degradation in Output Power 1 Pulse Test: Pulse width < 380 S, Duty Cycle < 2% APT Reserves the right to change, without notice, the specifications and information contained herein. TYPICAL 13.56 MHz, 1000 WATT PUSH-PULL CLASS 'C' POWER AMPLIFIER CIRCUIT Circuit Characteristics Pout = 1000W Gain = 16.5dB Efficiency = 80% R1-R4 Q1 L1 J1 RF INPUT R5-R8 Q2 T1 C1 R9-R12 Q3 L2 RFC1 R13-R16 C2 C3 C4 C5 C6 T2 BFC1 J2 RF OUTPUT J3 300VDC Q4 C7 C8 Parts List R1-R16 = 4.7 1W C1 = 200pF Chip Capacitor C2-C6 = 0.1F Disk Ceramic C7, C8 = 0.01 Disk Ceramic Q1, Q3 = ARF444 Q2, Q4 = ARF445 L1, L2 = 0.37H: 6T, #18AWG, ID=0.438 RFC1 = 2T, #14 PTFE coated twisted pair on a Fair-Rite #2643665702 shield bead, i=850 T1 = 9:1 (Z) conventional transformer; 3:1 (T), #18 stranded PTFE coated wire on two Fair-Rite #2643540002, i=850 T2 = 1:1 (Z) conventional transformer; 2:2 (T), #14 stranded PTFE coated wire on two stacks of three Fair-Rite #2643102002 shielded bead, i=850 BFC1 = 6T, #18 Twisted pair stranded PTFE coated wire on three stacked Indiana General Toroid #F624-19-Q1 i=125 050-4906 Rev D ARF444/445 1200 Performance of aTypical Push-Pull Power Amplifier (4-Devices) f = 13.56 MHz V = 300V DD Duty Cycle = 50% RF POWER OUT (WATTS) V GS = 0V Continuous Wave 800 400 0 0 10 20 RF POWER IN (WATTS) Figure 1, RF Power Out vs RF Power In 1.2 30 40 Figure 2, RF Power Out vs RF Power In 16 TJ = -55C VDS = 30V 250SEC. PULSE TEST @ <0.5 % DUTY CYCLE V TJ = +25C TJ = +125C VGS(TH), THRESHOLD VOLTAGE (NORMALIZED) ID, DRAIN CURRENT (AMPERES) DS =V GS 1.1 12 1.0 8 0.9 4 TJ = +125C TJ = +25C 0 TJ = -55C 0.8 0 2 4 6 8 VGS, GATE-TO-SOURCE VOLTAGE (VOLTS) Figure 2, Typical Transfer Characteristics BVDSS(ON), DRAIN-TO-SOURCE BREAKDOWN VOLTAGE (NORMALIZED) 0.7 -50 -25 0 25 50 75 100 125 150 TC, CASE TEMPERATURE (C) Figure 3, Threshold Voltage vs Temperature 10 ID, DRAIN CURRENT (AMPERES) 5 1.2 re N) He (O S ion at y R D er B Op ited Lim 1.1 1.0 1 .5 TC = +25C TJ = +150C 0.9 0.8 .1 1 5 10 50 100 1000 VDS, DRAIN-TO-SOURCE VOLTAGE (VOLTS) Figure 4, Maximum DC Safe Operating Area 0.7 -50 -25 0 25 50 75 100 125 150 TJ, JUNCTION TEMPERATURE (C) Figure 5, Breakdown Voltage vs Temperature 5,000 Ciss C, CAPACITANCE (pF) 1,000 500 Coss 100 Crss 50 10 .01 .05 .1 .5 1 5 10 VDS, DRAIN-TO-SOURCE VOLTAGE (VOLTS) Figure 6, Typical Capacitance vs. Drain-To-Source Voltage 50 100 300 050-4906 Rev D ARF444/445 TO-247AD Package Outline ARF444 4.69 (.185) 5.31 (.209) 1.49 (.059) 2.49 (.098) 6.15 (.242) BSC 15.49 (.610) 16.26 (.640) 5.38 (.212) 6.20 (.244) Source 20.80 (.819) 21.46 (.845) 3.55 (.138) 3.81 (.150) ARF44E 4.50 (.177) Max. 0.40 (.016) 0.79 (.031) 2.87 (.113) 3.12 (.123) 1.65 (.065) 2.13 (.084) 1.01 (.040) 1.40 (.055) 19.81 (.780) 20.32 (.800) GATE SOURCE DRAIN 2.21 (.087) 2.59 (.102) 5.45 (.215) BSC 2-Plcs. Dimensions in Millimeters and (Inches) ARF445 4.69 (.185) 5.31 (.209) 1.49 (.059) 2.49 (.098) 6.15 (.242) BSC 15.49 (.610) 16.26 (.640) 5.38 (.212) 6.20 (.244) Source 20.80 (.819) 21.46 (.845) 3.55 (.138) 3.81 (.150) ARF44O 4.50 (.177) Max. 0.40 (.016) 0.79 (.031) 2.87 (.113) 3.12 (.123) 1.65 (.065) 2.13 (.084) 1.01 (.040) 1.40 (.055) 19.81 (.780) 20.32 (.800) DRAIN SOURCE GATE 2.21 (.087) 2.59 (.102) 5.45 (.215) BSC 2-Plcs. Dimensions in Millimeters and (Inches) NOTE: The ARF444 and ARF445 comprise a symmetric pair of RF power transistors and meet the same electrical specifications. The device pin-outs are the mirror image of each other to allow ease of use as a push-pull pair. 050-4906 Rev D CAUTION: These Devices are Sensitive to Electrostatic Discharge. Proper Handling Procedures Should Be Followed. USA 405 S.W. Columbia Street Bend, Oregon 97702-1035 Phone: (541) 382-8028 FAX: (541) 388 -0364 EUROPE Avenue J.F. Kennedy Bat B4 Parc Cadera Nord F-33700 Merignac - France Phone: (33) 5 57 92 15 15 FAX: (33) 5 56 47 97 61 |
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