SD2932_10

SD2932 RF power transistors HF/VHF/UHF N-channel MOSFETs Features ■ ■ ■ ■ Gold metallization Excellent thermal stability Common source configuration, push-pull POUT = 300 W min. with 15 dB gain @ 175 MHz Description The SD2932 is a gold metallized N-channel MOS field-effect RF power transistor. The device is intended for use in 50 V DC large signal applications up to 250 MHz. Figure 1. M244 Epoxy sealed Pin connection 1 3 2 1 3 2 1. Drain 2. Gate 3. Source Table 1. Device summary Marking SD2932 Package M244 Packaging Tube Order code SD2932 March 2010 Doc ID 6876 Rev 8 1/22 www.st.com 22 Contents SD2932 Contents 1 Electrical data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3 1.1 1.2 Maximum ratings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3 Thermal data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3 2 Electrical characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4 2.1 2.2 Static . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4 Dynamic . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4 3 4 Impedance data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5 Typical performances . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6 4.1 Typical performance (175 MHz) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8 5 6 7 8 9 10 11 12 Test circuit 175 MHz . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10 Test circuit photomaster . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12 Typical broadband data (175 - 230 MHz) . . . . . . . . . . . . . . . . . . . . . . . . 13 Test circuit 175 - 230 MHz . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14 Typical broadband data (88 -108 MHz) . . . . . . . . . . . . . . . . . . . . . . . . . 16 Test circuit 88 - 108 MHz . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17 Package mechanical data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19 Revision history . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21 2/22 Doc ID 6876 Rev 8 SD2932 Electrical data 1 1.1 Electrical data Maximum ratings Table 2. Symbol V(BR)DSS VDGR VGS ID PDISS Tj TSTG Absolute maximum ratings (TCASE = 25°C) Parameter Drain source voltage Drain-gate voltage (RGS = 1MΩ) Gate-source voltage Drain current Power dissipation Max. operating junction temperature Storage temperature Value 125 125 ±20 40 500 +200 -65 to +150 Unit V V V A W °C °C 1.2 Thermal data Table 3. Symbol Rthj-c Thermal data Parameter Junction - case thermal resistance Value 0.35 Unit °C/W Doc ID 6876 Rev 8 3/22 Electrical characteristics SD2932 2 Electrical characteristics TCASE = +25 oC 2.1 Static Table 4. Symbol V(BR)DSS IDSS IGSS VGS(Q) VDS(ON) GFS ∆VGS (1) Static (per section) Test conditions VGS = 0 V VGS = 0 V VGS = 20 V VDS = 10 V VGS = 10 V VDS = 10 V VDS = 10 V VGS = 0 V VGS = 0 V VGS = 0 V IDS = 100 mA VDS = 50 V VDS = 0 V ID = 250 mA ID = 10A ID = 5 A ID = 250 mA VDS = 50 V VDS = 50 V VDS = 50 V f = 1 MHz f = 1 MHz f = 1 MHz 480 190 18 5 200 1.5 Min 125 50 250 4 3 Typ Max Unit V µA nA V V mho mV pF pF pF CISS COSS CRSS 1. Absolute VGS difference between side 1 and side 2 of the device 2.2 Dynamic Table 5. Symbol POUT GPS hD VDD = 50 V Dynamic Test conditions IDQ = 500 mA f = 175 MHz Min 300 15 50 5:1 16 60 Typ Max Unit W dB % VSWR VDD = 50 V, IDQ = 500 mA, POUT = 300 W, f = 175 MHz VDD = 50 V, IDQ = 500 mA, POUT = 300 W, f = 175 MHz VDD = 50 V, IDQ = 500 mA, POUT = 300 W, f = 175 MHz Load mismatch All phase angles 4/22 Doc ID 6876 Rev 8 SD2932 Impedance data 3 Impedance data Figure 2. Impedance data D ZDL Typical Input Impedance Typical Drain Load Impedance G Zin S Table 6. Impedance data Freq 175 MHz ZIN (Ω) 0.92 - j 0.14 ZDL (Ω) 3.17 + j 4.34 Note: Measured Gate to Gate and Drain to Drain, respectively. Doc ID 6876 Rev 8 5/22 Typical performances SD2932 4 Figure 3. Typical performances Maximum thermal resistance vs case temperature Figure 4. Gate voltage vs case temperature 0.42 VGS, GATE-SOURCE VOLTAGE (NORMALIZED) 1.15 1.1 Id=10 A Id=9 A Id=5 A Id=7 A Rth(j-c) (ºC/W) 0.4 1.05 Id=11 A 0.38 1 0.95 Id=4 A 0.36 0.9 Id=2 A Id=.1 A Id=1 A 0.34 25 30 35 40 45 50 55 60 65 70 75 80 85 Tc, CASE TEMPERATURE (°C) 0.85 Id=.25 A 0.8 -25 0 25 50 75 100 Tcase, CASE TEMPERATURE (°C) Figure 5. Capacitance vs drain-source voltage Figure 6. Drain current vs gate voltage 10000 20 ID, DRAIN CURRENT (A) C, CAPACITANCE (pF) Vds=10 V T=-20 °C T=+25 °C 15 1000 Ciss Coss 10 T=+80 °C 100 5 Crss 10 0 10 20 30 40 50 0 2 2.5 3 3.5 4 4.5 5 5.5 6 VDS, DRAIN-SOURCE VOLTAGE (V) VGS, GATE-SOURCE VOLTAGE (V) 6/22 Doc ID 6876 Rev 8 SD2932 Figure 7. Maximum safe operating area Typical performances Figure 8. Transient thermal impedance Doc ID 6876 Rev 8 7/22 Typical performances Figure 9. Transient thermal model SD2932 4.1 Typical performance (175 MHz) Figure 11. Output power vs input power Figure 10. Output power vs input power 600 600 Vdd=50 V Pout, OUTPUT POWER (W) 500 400 300 200 100 0 0 2 4 6 8 10 12 14 16 Vdd=50V Idq=2 x 250mA F=175Mhz Pout, OUTPUT POWER (W) T=-20 °C 500 400 T=+25 °C Vdd=40 V T=+80 °C 300 200 100 0 Vdd=50V Idq=2 x 250mA F=175Mhz 18 20 22 0 2 4 6 8 10 12 14 16 18 20 22 Pin, INPUT POWER (W) Pin, INPUT POWER(W ) 8/22 Doc ID 6876 Rev 8 SD2932 Typical performances Figure 12. Power gain vs output power Figure 13. Efficiency vs output power 18 80 70 Gp, POWER GAIN (dB) 17 16 15 14 13 12 11 10 0 100 200 300 400 500 Vdd=50V Idq=2 x 250mA F=175Mhz Nc, EFFICIENCY (%) 60 50 40 30 20 10 0 100 200 300 400 500 Vdd=50V Idq=2 x 250mA F=175Mhz Pout, OUTPUT POWER (W) Pout, OUTPUT POWER (W) Table 7. Output power vs supply voltage Figure 14. Output power vs gate voltage 450 400 Pin=15.6 W Pout,OUTPUT POWER (W) 400 350 300 250 200 150 100 24 Pout, OUTPUT POWER (W) Idq=2 x 250mA F=175Mhz T=+25 °C 300 T=-20 °C T=+80 °C Pin=7.8 W 200 100 Pin=3.9 W Vdd=50V Idq=2 x 250mA F=175Mhz 26 28 30 32 34 36 38 40 42 44 46 48 50 0 -3 -2 -1 0 1 2 3 Vdd,DRAIN VOLTAGE (V) VGS, GATE_SOURCE VOLTAGE (V) Doc ID 6876 Rev 8 9/22 Test circuit 175 MHz SD2932 5 Test circuit 175 MHz Figure 15. 175 MHz test circuit schematic (production test circuit NOTES: 1. DIMENSION AT COMPONENT SYMBOL ARE REFERENCE FOR COMPONENT PLACEMENT. 2. GAP BETWEEN GROUND & TRANSMISSION LINES IS + 0.002{0.05} - O.OOO[0.00] TYP REF. 1022256B Table 8. 175 MHz test circuit component part list Description 470 Ohm 1 W, surface mount chip resistor 360 Ohm 0.5 W, carbon comp. axial lead resistor or equivalent 560 Ohm 2 W, resistor two turn wire air-wound axial lead resistor 20 K Ohm 3.09 W, 10 turn wirewound precision potentiometer 680 pF ATC 130B surface mount ceramic chip capacitor Component R1,R2,R5,R6 R3,R4 R7,R8 R9,R10 C1,C4 C2,C3,C7,C8,C17,C19, 10000 pF ATC 200B surface mount ceramic chip capacitor C20,C21 C5 C6 C9,C10 C11,C12, C13 C14,C15,C24,C25 C16,C18 75 pF ATC 100B surface mount ceramic chip capacitor ST40 25 pF - 115 pF miniature variable trimmer 47 pF ATC 100B surface mount ceramic chip capacitor 43 pF ATC 100B surface mount ceramic chip capacitor 1200 pF ATC 700B surface mount ceramic chip capacitor 470 pF ATC 700B surface mount ceramic chip capacitor 10/22 Doc ID 6876 Rev 8 SD2932 Table 8. 175 MHz test circuit component part list (continued) Description 0.1 µF / 500 V surface mount ceramic chip capacitor 0.01 µF / 500 V surface mount ceramic chip capacitor 10 µF / 63 aluminum eletrolytic axial lead capacitor Test circuit 175 MHz Component C22,C23 C26,C27 C28 B1 B2 T1 T2 L1 FB1,FB5 FB2,FB6 FB3 FB4 PCB 50 Ohm RG316 O.D 0.076[1.93] L = 11.80[299.72] flexible coaxial cable 4 Turns thru Fair-rite Bead 50 Ohm RG-142B O.D 0.165[4.19] L = 11.80[299.72] flexible coaxial cable R.F. Transformer 4:1, 25 Ohm O.D RG316-25 O.D 0.080[2.03] L = 5.90[149.86] flexible coaxial cable 2 turns thru fair-rite multi-aperture core R.F. transformer 1:4, 25 Ohm semi-rigid coaxial cable O.D. 0.141[3.58] L = 5.90[149.86] Inductor λ 1/4 Wave 50 Ohm O.D 0.165[4.19] L = 11.80 [299.72] flexible coaxial cable 2 turns thru fair-rite bead Shield bead Multi-aperture core Multilayer ferrite chip bead (surface mount) Surface mount emi shield bead Woven Glass Reinforced PTFE Microwave Laminate 0.06”, 1 oz EDCu, Both sides, ε r = 2.55 Doc ID 6876 Rev 8 11/22 Test circuit photomaster SD2932 6 Test circuit photomaster Figure 16. 175 MHz test circuit photomaster 8.50 inches Figure 17. 175 MHz test fixture 12/22 Doc ID 6876 Rev 8 4 inches SD2932 Typical broadband data (175 - 230 MHz) 7 Typical broadband data (175 - 230 MHz) Figure 19. Power gain vs frequency Figure 18. Input power vs frequency 12 18 Pin , INPUT POWER (W) 10 8 6 4 2 160 Gp , POWER GAIN (dB) 17 16 15 14 13 12 11 10 160 170 Vdd = 50V Idq = 300 mA Pout = 250W Vdd = 50V Idq = 300 mA Pout = 250W 180 190 200 210 220 230 240 170 180 190 200 210 220 230 240 FREQUENCY (MHz) FREQUENCY (MHz) Figure 20. Efficiency vs frequency Figure 21. Return loss vs frequency Nd , DRAIN EFFICIENCY (%) 80 75 70 65 60 55 50 45 160 170 180 190 200 210 220 230 240 0 RTL , RETURN LOSS (dB) Vdd = 50V Idq = 300 mA Pout = 250W -2 -4 -6 -8 -10 -12 -14 -16 -18 -20 160 Vdd = 50V Idq = 300 mA Pout = 250W 170 180 190 200 210 220 230 240 FREQUENCY (MHz) FREQUENCY (MHz) Figure 22. 1 dB compression point vs frequency P1dB , 1dB COMPRESSION (W) 350 325 300 275 Vdd = 50V Idq = 300 mA 170 180 190 200 210 220 230 240 250 160 FREQUENCY (MHz) Doc ID 6876 Rev 8 13/22 Test circuit 175 - 230 MHz SD2932 8 Test circuit 175 - 230 MHz Figure 23. 175 - 230 MHz test circuit layout (engineering fixture) Table 9. 175 - 230 MHz circuit layout component part list Description 1/32” woven fiberglass 0.030 Cu, sides, ε r = 4.8 50 Ohm flexible coax cable OD 0.06”, 3” long. ferrite Core NEOSIDE 9:1transformer, 16.5 Ohm flexible coax cable 0.1”, 3” Long 4:1 transformer, 25 Ohm flexible coax cable OD 0.06”, 5” Long 8.2 pF ceramic cap 100 pF ceramic cap 2 - 18 pF chip cap 47 pF ceramic cap 47 nF ceramic cap 56 pF ATC chip cap 470 pF ATC chip cap 100 nF ceramic cap 2 x 330 nF / 50 V cap 10 nF / 63 V electrolityc cap 47 Ohm resistor 6.8 K Ohm chip resistor Component PCB T1 T2,T3 T4,T5 C1 C2,C3 C4 C5 C6,C11 C7 C8,C9,C13 C10 C12 C14 R1,R3 R2 14/22 Doc ID 6876 Rev 8 SD2932 Table 9. Test circuit 175 - 230 MHz 175 - 230 MHz circuit layout component part list (continued) Description 4.7 K Ohm multi turns trim resistor 8.2 K Ohm / 5 W resistor 3.3 K Ohm / 5 W resistor 6.8 V Zener diode 20 nH Inductor 70 nH Inductor 30 nH Inductor 10 nH Inductor 15 nH Inductor Component R4 R5 R6 D1 L1 L2 L3 L4 L5 Doc ID 6876 Rev 8 15/22 Typical broadband data (88 -108 MHz) SD2932 9 Typical broadband data (88 -108 MHz) Figure 25. Power gain vs frequency Figure 24. Input power vs frequency 4 22 Pin , INPUT POWER (W) Gp , POWER GAIN (dB) 3.5 Vdd = 50V Idq = 200 mA Pout = 300W 21 20 19 18 17 16 3 Vdd = 50V Idq = 200 mA Pout = 300W 2.5 85 90 95 100 105 110 85 90 95 100 105 110 FREQUENCY (MHz) FREQUENCY (MHz) Figure 26. Efficiency vs frequency Figure 27. Return loss vs frequency 80 0 RTL , RETURN LOSS (dB) 78 -2 -4 -6 -8 -10 -12 -14 -16 -18 -20 85 90 95 100 105 110 Nd , EFFICIENCY (%) 76 74 72 70 68 66 64 62 60 85 90 95 100 105 110 Vdd = 50V Idq = 200 mA Pout = 300W Vdd = 50V Idq = 200 mA Pout = 300W FREQUENCY (MHz) FREQUENCY (MHz) Figure 28. 2nd harmonic vs. frequency (88 - 108 MHz) Figure 29. 3rd harmonic vs frequency (88 - 108 MHz) -10 -12 -14 -16 -18 -20 -22 -24 -26 -28 -30 -32 -34 -36 85 90 95 100 Vdd = 50V Idq = 200 mA Pout = 300W -10 -12 -14 -16 -18 -20 -22 -24 -26 -28 -30 -32 -34 -36 85 90 95 100 H2 , 2nd HARMONIC (dBc) H3 , 3rd HARMONIC (dBc) Vdd = 50V Idq = 200 mA Pout = 300W 105 110 105 110 FREQUENCY (MHz) FREQUENCY (MHz) 16/22 Doc ID 6876 Rev 8 SD2932 Test circuit 88 - 108 MHz 10 Test circuit 88 - 108 MHz Figure 30. 88 - 108 MHz test circuit layout (engineering fixture) Table 10. 175 - 230 MHz circuit layout component part list Description 1/32” woven fiberglass 0.030 Cu, 2 sides, ε r = 4.8 50 Ohm flexible coax cable OD 0.06”, 5” Long 9:1 transformer, 25 Ohm flexible coax cable OD 0.1”, 3.9”. ferrite core NEOSIDE 4:1 transformer, 25 Ohm flexible coax cable OD 0.1”, 5” Long 50 Ohm flexible coax cable OD 0.1”, 5” long vk200 10 pF ceramic cap 1 nF chip cap 1 nF ATC chip cap 470 pF ATC chip cap 100 nF chip cap 100 mF / 63 V electrolityc cap 56 Ohm resistor 10 Ohm chip resistor 10 K Ohm resistor 5.6 Ohm resistor Component PCB T1 T2,T3 T4,T5 T6 FB1 C1 C2,C3,C4,C7,C8 C5,C6 C9 C10 C11 R1 R2,R4 R3 R5 Doc ID 6876 Rev 8 17/22 Test circuit 88 - 108 MHz Table 10. 175 - 230 MHz circuit layout component part list (continued) Description 10 K Ohm, 10 turn trim resistor 3.3 K Ohm / 5 W resistor 15 Ohm / 5 W resistor 6.6 V Zener diode 10 nH inductor 40 nH inductor 70 nH inductor SD2932 Component R6 R7 R8 D1 L1 L2 L3 18/22 Doc ID 6876 Rev 8 SD2932 Package mechanical data 11 Package mechanical data In order to meet environmental requirements, ST offers these devices in different grades of ECOPACK® packages, depending on their level of environmental compliance. ECOPACK® specifications, grade definitions and product status are available at: www.st.com. ECOPACK is an ST trademark. Doc ID 6876 Rev 8 19/22 Package mechanical data Table 11. Dim. Min A B C D E F G H I J K L M N 33.91 0.10 1.52 2.59 4.83 10.03 21.59 3.02 9.65 19.81 10.92 27.94 34.16 0.15 1.78 2.84 5.84 10.34 22.10 1.335 0.004 0.060 0.102 0.190 0.395 0.850 5.59 5.08 3.28 9.91 20.82 11.18 0.119 0.380 0.780 0.430 1.100 Typ Max 5.84 Min 0.220 0.200 Typ SD2932 M244 (.400 x .860 4/L BAL N/HERM W/FLG) mechanical data mm. Inch Max 0.230 0.129 0.390 0.820 0.440 1.345 0.006 0.070 0.112 0.230 0.407 0.870 Figure 31. Package dimensions Controlling Dimension: Inches 1020876B 20/22 Doc ID 6876 Rev 8 SD2932 Revision history 12 Revision history Table 12. Date 15-Jul-2004 24-Jan-2006 23-Nov-2009 31-Mar-2010 Document revision history Revision 5 6 7 8 Updated Table 4: Static (per section). Inserted ∆VGS in Table 4: Static (per section). Added Figure 7, Figure 8 and Figure 9. Changes Doc ID 6876 Rev 8 21/22 SD2932 Please Read Carefully: Information in this document is provided solely in connection with ST products. STMicroelectronics NV and its subsidiaries (“ST”) reserve the right to make changes, corrections, modifications or improvements, to this document, and the products and services described herein at any time, without notice. All ST products are sold pursuant to ST’s terms and conditions of sale. Purchasers are solely responsible for the choice, selection and use of the ST products and services described herein, and ST assumes no liability whatsoever relating to the choice, selection or use of the ST products and services described herein. No license, express or implied, by estoppel or otherwise, to any intellectual property rights is granted under this document. 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