STAC3932F RF power transistors HF/VHF/UHF N-channel MOSFETs Preliminary data Features ■ Excellent thermal stability ■ Common source push-pull configuration ■ POUT = 580 W typ. with 24.6 dB gain @ 123 MHz ■ In compliance with the 2002/95/EC European directive Description STAC244F Air cavity The STAC3932F is a N-channel MOS field-effect RF power transistor. It is intended for use in 100 V DC large signal applications up to 250 MHz. Figure 1. !-V Pin connection 1 1 2 3. Source 1. Drain 2 3 2. Gate Table 1. (Bottom side) !-V Device summary Order code Marking Package Packaging STAC3932F STAC3932F STAC244F Plastic tray March 2010 Doc ID 15513 Rev 4 This is preliminary information on a new product now in development or undergoing evaluation. Details are subject to change without notice. 1/16 www.st.com 16 Contents STAC3932F Contents 1 2 Electrical data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3 1.1 Maximum ratings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3 1.2 Thermal data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3 Electrical characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4 2.1 Static . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4 2.2 Dynamic . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4 3 Impedances . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5 4 Electrical schematic and BOM . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6 5 Circuit layout . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8 6 Typical performance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9 7 Package mechanical data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12 8 Revision history . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14 2/16 Doc ID 15513 Rev 4 STAC3932F Electrical data 1 Electrical data 1.1 Maximum ratings Table 2. Absolute maximum ratings (TCASE = 25 °C) Symbol V(BR)DSS(1) VDGR VGS ID PDISS TJ TSTG Parameter Value Unit Drain source voltage 250 V Drain-gate voltage (RGS = 1 MΩ) 250 V Gate-source voltage ±20 V Drain current 20 A Power dissipation 625 W Max. operating junction temperature 200 °C -65 to +150 °C Value Unit 0.28 °C/W Storage temperature 1. TJ = 150 °C 1.2 Thermal data Table 3. Symbol RthJC Thermal data Parameter Junction - case thermal resistance Doc ID 15513 Rev 4 3/16 Electrical characteristics 2 STAC3932F Electrical characteristics (TCASE = 25 °C) 2.1 Static Table 4. Static (per side) Symbol V(BR)DSS(1) VGS = 0 V Test conditions Min. IDS = 100 mA 250 Typ. Max. Unit V IDSS VGS = 0 V VDS = 100 V IGSS VGS = 20 V VDS = 0 V VTH VDS = 10 V ID = 250 mA VDS(ON) VGS = 10 V ID = 5 A GFS VDS = 10 V ID = 2.5 A CISS VGS = 0 V VDS = 100 V f = 1 MHz 492 pF COSS VGS = 0 V VDS = 100 V f = 1 MHz 134 pF CRSS VGS = 0 V VDS = 100 V f = 1 MHz 5.2 pF 2.0 2.5 3.0 1 mA 250 nA 4.0 V 3.5 V 5.0 S 1. TJ = 150 °C 2.2 Dynamic Table 5. Symbol Test conditions Min. Typ. POUT VDD = 100 V, IDQ = 2 x 250 mA, PIN = 2 W, f = 123 MHz 450 580 W hD VDD = 100 V, IDQ = 2 x 250mA, PIN = 2 W, f = 123 MHz 70 % Table 6. 4/16 CW Max. Unit Pulse / 1 mec -- 10 % Symbol Test conditions POUT VDD = 100 V, IDQ = 2 x 250 mA, PIN = 8 W, f = 123 MHz 900 W hD VDD = 100 V, IDQ = 2 x 250mA, PIN = 8 W, f = 123 MHz 65 % Doc ID 15513 Rev 4 Min. Typ. Max. Unit STAC3932F 3 Impedances Impedances Figure 2. Impedance data D ZDL Typical Input Impedance Typical Drain Load Impedance G Zin S Table 7. Impedance data Freq. ZIN (Ω) ZDL (Ω) 123 MHz (Pulse) 1.0 - j 4.80 6.3 + j 10.5 123 MHz (CW) 0.8 - j 3.45 5.0 + j 13.0 64 MHz 1.4 - j 10.0 12.8 + j 14.0 Doc ID 15513 Rev 4 5/16 Electrical schematic and BOM 4 STAC3932F Electrical schematic and BOM Figure 3. Electrical schematic !-V Table 8. 6/16 Bill of materials Component Description C1 270 pF ATC 100B chip capacitor C2 180 pF ATC 100B chip capacitor C3, C4 750 pF ATC 700B chip capacitor C5, C8 43 pF ATC 100B chip capacitor C6 20 pF ATC 100B chip capacitor C7 1000 pF ATC 100C chip capacitor C9 5.6 pF ATC 100B chip capacitor C10 2200 pF ATC 100C chip capacitor C11 470 pF ATC 100B chip capacitor C12 100 µF, 200 V electrolytic capacitor C13, C14 1200 pF ATC 700B chip capacitor R1, R2 15 Ω 1/4 watt chip resistor R3, R4 30 Ω 1/4 watt axial lead resistor L1 3 turns, 16 ga magnet wire, Id 3/8", .165" turn spacing, 78 nH FB1, FB2 ferrite bead, Fair-Rite # 2743019447 B1 1/4λ balun transformer, RG316-25Ω ,16.5" T1 20 ga teflon coated wire thru 4 copper tubes OD 1/8"x 1.5" TL1, TL2 0.740" x 0.200" microstrip TL3, TL4 0.360" x 0.200" microstrip Doc ID 15513 Rev 4 STAC3932F Electrical schematic and BOM Table 8. Bill of materials (continued) Component Description TL5, TL6 0.480" x 0.350" microstrip TL7, TL8 0.220" x 0.350" microstrip TL9, TL10 0.350" x 0.660" microstrip TL11 0.415" x 0.200" microstrip Board 0.062" FR-4 Doc ID 15513 Rev 4 7/16 Circuit layout 5 STAC3932F Circuit layout Figure 4. Circuit layout !-V Figure 5. Circuit layout !-V 8/16 Doc ID 15513 Rev 4 STAC3932F Typical performance Figure 6. Capacitances vs drain supply voltage &DSDFLWDQFHS) 9GG9 !-V Figure 7. Maximum safe operating area QP 0D['UDLQ&XUUHQW ,G$ 6 Typical performance U 4F D[ VGF NKOK P VKQ GTC 1R OU OU &% 6LQJOH3XOVH 7FDVH &7M & 'UDLQVXSSO\YROWDJH 9GG9 Doc ID 15513 Rev 4 !-V 9/16 Typical performance Figure 8. STAC3932F Transient thermal impedance 6LQJOH5HSHWLWLYHSXOVH 7KHUPDO,PSHGDQFH=WKMF&: #/X VLQJOHSXOVH ( ( ( ( 5HFWDQJXODU3RZHU3XOVH:LGWKVHF Figure 9. Transient thermal model 2 2 2 /HM # # # & 2 2 2 /HM # # # & 2 2 2 /HM # # # & 2 2 2 /HM # # # & !-V 10/16 Doc ID 15513 Rev 4 ( STAC3932F Typical performance Figure 10. Zero temperature coefficient point !-V )UHT 0+] 9GG 9 ,GT [P$ (IILFLHQF\ 2XWSXWSRZHU: Figure 11. Output power and efficiency vs input power (CW) 3RXW ,QSXWSRZHU: (II !-V Figure 12. Gain vs output power (CW) *DLQG% )UHT 0+] 9GG 9 ,GT [P$ 2XWSXWSRZHU: !-V Doc ID 15513 Rev 4 11/16 Typical performance STAC3932F )UHT 0+] 9GG 9 ,GT [P$ 3RXW (IILFLHQF\ 2XWSXWSRZHU: Figure 13. Output power and efficiency vs input power (1 msec - 10%) (IILFLHQF\ ,QSXWSRZHU: !-V 12/16 Doc ID 15513 Rev 4 STAC3932F 7 Package mechanical data 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. Table 9. STAC244F package dimensions mm. Inch Dim. Min Max Min Max A 5.10 5.59 200 220 A1 4.32 4.83 170 190 B 4.32 5.33 170 210 C 9.65 9.91 380 390 D 19.61 20.02 772 788 E 20.45 20.70 805 815 F 0.08 1.15 0.003 0.006 G 0.89 1.14 0.035 0.045 H 1.45 1.70 0.057 0.067 I 3.18 4.32 0.125 0.170 J 9.27 9.53 0.365 0.375 Doc ID 15513 Rev 4 13/16 Package mechanical data STAC3932F Figure 14. Package dimensions !-V 14/16 Doc ID 15513 Rev 4 STAC3932F 8 Revision history Revision history Table 10. Document revision history Date Revision Changes 24-Mar-2009 1 First release. 12-Feb-2010 2 Table 1 (packaging) modified Figure 1 modified. 18-Feb-2010 3 Updated description on cover page. 16-Mar-2010 4 Updated Figure 7: Maximum safe operating area. Added Figure 8: Transient thermal impedance. and Figure 9: Transient thermal model. Doc ID 15513 Rev 4 15/16 STAC3932F Please Read Carefully: Information in this document is provided solely in connection with ST products. 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