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preliminary data this is preliminary information on a new product now in deve lopment or undergoing evaluation. details are subject to change without notice. march 2009 rev 1 1/17 17 STAP57045 rf power transistor, ldmost plastic family n-channel enhancement -mode lateral mosfets features excellent thermal stability common source configuration p out = 45 w with 13 db gain @ 945 mhz / 28 v st advanced powerso-10rf-stap package description the STAP57045 is a common source n-channel, enhancement-mode lateral field-effect rf power transistor. it is designed for high gain, broad band commercial and industrial applications. it operates at 28 v in common source mode at frequencies of up to 1 ghz. STAP57045 boasts the excellent gain, linearity and reliability of st?s latest ldmos technolo gy mounted in stap1 plastic rf power package. stap package has been specially optimized for rf needs and offers excellent performances and ease of assembly. mounting recommendations are available in www.st.com/rf/ (look for application note an1294) figure 1. pin connection !- stap1 !- gate drain source www.st.com table 1. device summary order code package packing STAP57045 stap1 tube
contents STAP57045 2/17 contents 1 electrical data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3 1.1 maximum ratings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3 1.2 thermal data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3 2 electrical characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4 2.1 static . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4 2.2 dynamic . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4 3 impedance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5 4 typical performance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6 5 test circuit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9 6 common source s-parameter . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12 6.1 STAP57045 (vds = 13.5v ids = 1.5a) . . . . . . . . . . . . . . . . . . . . . . . . . . 12 6.2 STAP57045 (v ds = 28 v, i ds = 1.5 a) . . . . . . . . . . . . . . . . . . . . . . . . . . . 13 7 package mechanical data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15 8 revision history . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21
STAP57045 electrical data 3/17 1 electrical data 1.1 maximum ratings 1.2 thermal data table 2. absolute maximum ratings (t case = 25 c) symbol parameter value unit v (br)dss drain-source voltage 65 v v gs gate-source voltage 20 v i d drain current 5 a p diss power dissipation (@ tc = 70 c) 73 w t j max. operating junction temperature 165 c t stg storage temperature -65 to +150 c table 3. thermal data symbol parameter value unit r thjc junction - case thermal resistance 1.2 c/w
electrical characteristics STAP57045 4/17 2 electrical characteristics t case = +25 c 2.1 static 2.2 dynamic table 4. static symbol test conditions min typ max unit v (br)dss v gs = 0 v i ds = 1 ma 65 v i dss v gs = 0 v v ds = 28 v 1 a i gss v gs = 20 v v ds = 0 v 1 a v gs(q) v ds = 28 v i d = 250 ma 2.0 5.0 v v ds(on) v gs = 10 v i d = 3 a 0.7 0.9 v g fs v ds = 10 v i d = 4 a 2.0 2.7 mho c iss v gs = 0 v v ds = 28 v f = 1 mhz 86 pf c oss v gs = 0 v v ds = 28 v f = 1 mhz 47 pf c rss v gs = 0 v v ds = 28 v f = 1 mhz 3.6 pf table 5. dynamic symbol test conditions min. typ. max. unit p 1db v dd = 28 v i dq = 250 ma f = 945 mhz 45 w g p v dd = 28 v i dq = 250 ma p out = 45 w f = 945 mhz 13 14.5 db d v dd = 28 v i dq = 250 ma p out = 45 w f = 945 mhz 50 % load mismatch v dd = 28 v i dq = 250 ma p out = 45 w f = 945 mhz all phase angles 10:1 vswr
STAP57045 impedance 5/17 3 impedance figure 2. current conventions table 6. impedance data freq. (mhz) z in ( )z dl ( ) 925 0.71 + j 2.32 1.29 - j 0.35 945 0.69 + j 2.92 1.25 - j 0.29 960 0.55 + j 2.78 1.18 - j 0.83
typical performance STAP57045 6/17 4 typical performance figure 3. capacitance vs drain voltage figure 4. drain current vs gate voltage figure 5. gate-source voltage vs case temperature figure 6. safe operating area 0 5 10 15 20 25 30 vds (v) 1 10 100 1000 c (pf) ciss coss crss f=1 m hz 2.5 3 3.5 4 4.5 5 vgs, gate-source voltage (v) 0 0.5 1 1.5 2 2.5 3 3.5 4 id, drain current (a) vds= 10 v -25 0 25 50 75 tc, case temperature (c) 0.96 0.98 1 1.02 1.04 vgs, gate-source voltage (normalized) i d = 1.5 a i d = 2a i d = 3a v ds = 10 v i d = .25 a i d = 1 a 1 10 100 vds (v) 0.1 1 10 id (a) tc = 100 c tc = 25 c tc = 70 c tj = 165 c
STAP57045 typical performance 7/17 pd57045s figure 7. output power vs input power figure 8. input return loss vs output power figure 9. power gain vs output power figure 10. drain efficiency vs output power 0 0.5 1 1.5 2 2.5 3 3.5 pin, input power (w) 0 10 20 30 40 50 60 pout, output power (w) 10 11 12 13 14 15 16 gp, power gain (db) gp pout v dd = 28 v i dq = 250 ma f = 945 mhz 0 102030405060 pout, output power (w) -40 -30 -20 -10 0 rtl, return loss (db) f = 945 mhz vdd = 28 v idq = 250 ma 0.1 1 10 100 pout, output power (w) 10 11 12 13 14 15 16 17 gp, power gain (db) idq = 450 ma idq = 250 ma idq = 150 ma idq = 75 ma vdd = 28 v f = 945 mhz 0 102030405060 pout, output power (w) 0 10 20 30 40 50 60 nd, drain efficiency (%) f = 945 mhz vdd = 28 v idq = 250 ma
typical performance STAP57045 8/17 figure 11. output power vs bias current figure 12. drain efficiency vs bias current figure 13. output power vs drain voltage figure 14. output power vs gate bias voltage 0 200 400 600 800 1000 idq, bias current (ma) 20 30 40 50 60 pout, output power (w) pin = 1.5 w vdd = 28 v f = 945 mhz 0 200 400 600 800 1000 idq, bias current (ma) 30 40 50 60 70 nd, drain efficiency (%) pin = 1.5 w vdd = 28 v f = 945 mhz 16 18 20 22 24 26 28 30 32 34 vds, drain-source voltage (v) 10 20 30 40 50 60 70 80 pout, output power (w) pin = 2 w pin = 1 w pin =3 w pin = 1.5 w f = 945 mhz vdd = 28 v idq = 250 ma 0 0.5 1 1.5 2 2.5 3 3.5 4 vgs, gate bias voltage (v) 0 10 20 30 40 50 pout, output power (w) pin = 1.5 w vdd = 28 v f = 945 mhz
STAP57045 test circuit 9/17 5 test circuit figure 15. test circuit schematic note: 1 dimensions at component symbols are reference for component placement. 2 gap between ground & transmission line = 0.056 [1.42] +0.002 [0.05] -0.000 [0.00] typ. 3 dimensions of input and output component from edge of transmission lines. v in rf g g + + out rf + d + d v
test circuit STAP57045 10/17 figure 16. test circuit table 7. test circuit component part list component description l1,l2 inductor, 5 turns air wound #22awg, id 0.059{1.49}, nylon coated magnet wire fb1,fb2 shield bead surface mount emi r1 18 k , 1 w surface mount chip resistor r2 4.7 m , 1 w surface mount chip resistor r3 120 , 2 w surface mount chip resistor c1,c2 3 pf atc 100b surface mount ceramic chip capacitor c3,c10,c11,c15 47 pf atc 100b surface mount ceramic chip capacitor c4,c9 0.8-8.0 pf giga trim variable capacitor c5,c6,c7,c8 7.5 pf atc 100b surface mount ceramic chip capacitor c12 1000 pf atc 700b surface mount ceramic chip capacitor c13,c17 0.1 f/500 v surface mount ceramic chip capacitor c14 10 f/50 v aluminum electrolytic radial lead capacitor c16 100 pf atc 100b surface mount ceramic chip capacitor c18 220 f/63 v aluminum electrolytic radial lead capacitor board roger, ultra lam 2000, thk 0.030?, r = 2.55 2 oz. ed cu 2 sides.
STAP57045 test circuit 11/17 figure 17. test circuit photomaster 6.4 inches 4 inches
common source s-parameter STAP57045 12/17 6 common source s-parameter 6.1 STAP57045 (v ds = 13.5v i ds = 1.5a) table 8. s-parameter freq (mhz) is 11 is 11 ? is 21 is 21 ? is12i s 12 ? is 22 is 22 ? 50 0.825 -170 14.34 85 0.014 -1 0.819 -171 100 0.875 -173 6.94 79 0.013 -6 0.824 -175 150 0.895 -175 4.67 75 0.013 -10 0.828 -175 200 0.908 -176 3.44 70 0.013 -14 0.837 -176 250 0.910 -177 2.70 65 0.012 -16 0.842 -176 300 0.916 -178 2.20 60 0.012 -18 0.854 -176 350 0.922 -178 1.82 55 0.011 -23 0.864 -176 400 0.926 -179 1.55 51 0.010 -25 0.874 -176 450 0.933 -179 1.32 47 0.010 -25 0.883 -177 500 0.937 -179 1.14 44 0.008 -25 0.893 -177 550 0.942 -180 1.00 40 0.008 -24 0.901 -177 600 0.946 180 0.88 37 0.007 -25 0.912 -177 650 0.949 180 0.79 34 0.007 -25 0.915 -178 700 0.951 179 0.70 32 0.006 -20 0.922 -178 750 0.954 179 0.63 29 0.005 -23 0.926 -179 800 0.958 178 0.57 27 0.005 -14 0.932 -179 850 0.961 178 0.52 24 0.004 -6 0.932 -180 900 0.963 178 0.47 22 0.004 3 0.942 179 950 0.964 177 0.44 20 0.004 1 0.942 180 1000 0.966 177 0.40 18 0.004 7 0.943 179 1050 0.967 176 0.37 16 0.003 26 0.946 179 1100 0.966 176 0.35 15 0.003 51 0.949 178 1150 0.969 176 0.32 13 0.003 56 0.950 179 1200 0.970 175 0.30 11 0.004 62 0.953 179 1250 0.970 175 0.29 9 0.004 55 0.967 178 1300 0.971 175 0.26 7 0.004 65 0.972 176 1350 0.972 174 0.25 6 0.004 71 0.958 176 1400 0.972 174 0.23 4 0.005 81 0.961 176 1450 0.970 174 0.22 3 0.006 91 0.958 175 1500 0.970 173 0.20 2 0.007 100 0.963 175
STAP57045 common source s-parameter 13/17 6.2 STAP57045 (v ds = 28 v, i ds = 1.5 a) table 9. s-parameter freq (mhz) is 11 i s 11 ? is 21 i s 21 ? is 12 i s 12 ? is22i s 22 ? 50 0.829 -161 20.72 92 0.012 2 0.718 -166 100 0.872 -168 10.33 82 0.011 -6 0.731 -170 150 0.897 -172 6.84 74 0.011 -10 0.745 -171 200 0.910 -174 5.02 68 0.010 -14 0.765 -171 250 0.913 -175 3.86 61 0.010 -17 0.783 -171 300 0.922 -176 3.10 55 0.009 -23 0.803 -171 350 0.928 -176 2.53 50 0.009 -25 0.823 -172 400 0.934 -177 2.12 45 0.008 -27 0.839 -172 450 0.941 -178 1.79 41 0.007 -26 0.856 -172 500 0.946 -178 1.53 37 0.006 -26 0.872 -173 550 0.949 -179 1.32 34 0.005 -27 0.884 -174 600 0.955 -179 1.16 31 0.005 -24 0.898 -174 650 0.959 -180 1.03 27 0.004 -18 0.902 -175 700 0.960 180 0.91 25 0.004 -17 0.914 -175 750 0.963 179 0.81 22 0.003 -7 0.919 -176 800 0.967 179 0.73 19 0.003 -1 0.928 -176 850 0.968 178 0.67 17 0.003 11 0.927 -177 900 0.968 178 0.60 15 0.003 28 0.937 -178 950 0.972 178 0.55 12 0.003 36 0.939 -178 1000 0.972 177 0.50 11 0.003 56 0.94 -179 1050 0.972 177 0.49 9 0.003 56 0.944 -179 1100 0.972 176 0.43 7 0.004 63 0.950 -180 1150 0.974 176 0.40 5 0.004 66 0.950 -179 1200 0.975 176 0.37 4 0.005 72 0.950 -180 1250 0.975 175 0.35 3 0.006 75 0.968 180 1300 0.976 175 0.32 0 0.006 77 0.973 178 1350 0.977 174 0.30 -1 0.006 81 0.960 178 1400 0.976 174 0.28 -2 0.006 84 0.960 177 1450 0.973 174 0.26 -3 0.007 98 0.958 177 1500 0.973 174 0.25 -4 0.008 102 0.963 176
package mechanical data STAP57045 14/17 7 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.
STAP57045 package mechanical data 15/17 figure 18. package dimensions table 10. STAP57045 package dimensions dim. mm. inch min max min max a 5.40 5.65 0.212 0.222 b 9.27 9.53 0.365 0.375 b1 2.90 3.10 0.114 0.122 b2 15.10 15.65 0.594 0.616 c 6.60 6.99 0.260 0.275 d 23.11 23.42 0.910 0.922 d1 14.88 15.19 0.586 0.598 d2 7.52 7.82 0.296 0.308 e 7.42 7.57 0.292 0.298 e1 5.69 5.84 0.224 0.230 f 0.21 0.31 0.008 0.012 g 1.62 1.72 0.064 0.068 q 3.15 3.30 0.124 0.130 r1 1.52 0.060 r2 0.64 0.025 !-v
revision history STAP57045 16/17 8 revision history table 11. document revision history date revision changes 26-mar-2009 1 initial release
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