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| (R) SD2903 RF & MICROWAVE TRANSISTORS HF/VHF/UHF N-CHANNEL MOSFETs s s s s s s s GOLD METALLIZATION 2 - 500 MHz 30 WATTS 28 VOLTS 13 dB MIN. AT 400 MHz CLASS A OR AB OPERATION EXCELLENT THERMAL STABILITY .230 x .360 4LFL (M229) epoxy sealed ORDER CODE BRANDING SD2903 SD2903 DESCRIPTION The SD2903 is a gold metallized N-Channel MOS field-effect RF power transistor. It is intended for use in 28 V DC large signal applications up to 500 MHz PIN CONNECTION 1. Drain 2. Drain 3. Source ABSOLUTE MAXIMUM RATINGS (Tcase = 25 oC) Symbol V (BR)DSS V DGR V GS ID P DI SS Tj T STG Parameter Drain Source Voltage Drain-Gate Voltage Gate-Source Voltage Drain Current Power Dissipation Max. O perating Junction Temperature Storage T emperature (R GS = 1 M) Value 65 65 20 5 100 200 -65 to 150 4.Gate 5.Gate Uni t V V V A W o o C C THERMAL DATA R th (j-c) R th(c -s) Junction-Case Thermal Resistance Case-Heatsink T hermal Resistance 1.75 0.40 o o C/W C/W * Determined using a flat aluminum or copper heatsink with thermal compound applied (Dow Corning 340 or equivalent). May 1999 1/8 SD2903 ELECTRICAL SPECIFICATION (Tcase = 25 oC) STATIC (Per Section) Symb ol V (BR)DSS I DSS I GSS V GS(Q) V DS( ON) g FS C ISS C OSS C RSS V GS = 0V V GS = 0V V GS = 20V V DS = 10V V GS = 10V V DS = 10V V GS = 0V V GS = 0V V GS = 0V Parameter IDS = 15 mA VDS = 28 V V DS = 0 V ID = 30 mA ID = 1.5 A ID = 1.5 A V DS = 28 V V DS = 28 V V DS = 28 V f = 1 MHz f = 1 MHz f = 1 MHz 0.6 23 18 3.5 1.0 Min. 65 1.5 1.0 6.0 1.6 Typ . Max. Un it V mA A V V mho pF pF pF REF. 1021309H DYNAMIC (Total Device) Symb ol P OUT G PS D f = 400 MHz f = 400 MHz f = 400 MHz Parameter V DD = 28 V V DD = 28 V V DD = 28 V V DD = 28 V P out = 30 W P out = 30 W P out = 30 W I DQ = 100 mA I DQ = 100 mA I DQ = 100 mA I DQ = 100 mA Min. 30 13 45 5:1 15 50 Typ . Max. Un it W dB % VSW R Load f = 400 MHz Mismatch All Angles IMPEDANCE DATA FREQ . 400 MHz Z IN () 4.6 - j 12 Z DL () 13.6 + j 10 Measured Gate to Gate and Drain to Drain, Respectively. 2/8 SD2903 TYPICAL PERFORMANCE Capacitance vs Drain-Source Voltage GC8377 0 Maximum Thermal Resistance vs Case Temperature GC83780 100 2.1 C, CAPACITANCES (pF) Ciss f = 1 MHz 10 Coss RTH(j-c) (C/W) 30 1.9 Crss 1 0 10 20 VDS, DRAIN-SOURCE VOLTAGE (VOLTS) 1.7 25 45 65 85 Tc, CASE TEMPERATURE (C) Drain Current vs Gate Voltage GC83790 Gate-Source Voltages vs Case Temperature VGS, GATE-SOURCE VOLTAGE (NORMALIZED) 5 T = -20C GC83800 1.05 ID = 3A ID, DRAIN CURRENT (A) 4 VDS = 10V T = 25C ID = 2 A 1 I D = 1.25 A 3 T = 80C 2 ID = 500 mA 0.95 VDD= 10V ID = 25 mA 1 0 5 6 7 8 9 10 0.9 -25 0 25 50 75 100 Tc, CASE TEMPERATURE (C) VGS, GATE-SOURCE VOLTAGE (VOLTS) 3/8 SD2903 TYPICAL PERFORMANCE Output Power vs Input Power GC83810 Output Power vs Input Power GC83820 40 Vdd = 28 V 50 T = 25 C T = -20C Pout, OUTPUTPOWER (W) Pout, OUTPUT POWER (W) 40 30 30 T =80C 20 Tc=25C f = 400 MHz IDQ = 100 mA 20 IDQ = 100 mA VDD = 28 V f = 400 MHz 10 Vdd = 13.5 V 10 0 0.05 0.45 0.85 1.25 0 0.05 0.45 0.85 1.25 Pin, INPUT POWER (W) Pin, INPUT POWER (W) Output Power vs Voltage Supply Output Power vs Gate Voltage 40 GC83830 GC83840 40 Pin = 1.2 W Pout, OUTPUT POWER (WATTS) Pout, OUTPUT POWER (WATTS) T =-20 C T = 25 C 30 30 T = 80 C IDQ = 100 mA f = 400 MHz Pin = .6 W 20 20 Pin = .3 W 10 10 VDD = 28V IDQ = 100mA f = 400MHz Pin = Constant 0 13 18 23 28 0 3 4 5 6 VGS, GATE-SOURCE VOLTAGE(VOLTS) 7 VDD, SUPPLY VOLTAGE (VOLTS) Power Gain vs Output Power GC83850 Efficiency vs Output Power GC83860 20 60 PG, POWER GAIN (dB) 50 18 EFFICIENCY(%) 40 30 Tc= 25C f = 400 MHz IDQ = 100 mA 16 Tc = 25C f = 400 MHz IDQ = 100 mA 20 10 0 14 0 10 20 30 40 10 20 30 40 Pout, OUTPUT POWER (W) Pout, OUTPUT POWER (W) 4/8 SD2903 400 MHz Test Circuit Schematic 400 MHz Test Circuit Component Part List 5/8 SD2903 400 MHz Test Circuit Photomaster REF. 1022349A Production Test Fixture 6/8 SD2903 M229 MECHANICAL DATA mm MIN. A B C D E F G H I J K L 18.29 24.64 9.02 0.10 3.18 4.06 5.84 4.45 1.40 11.94 5.72 2.92 18.54 24.89 9.27 0.15 3.43 4.32 6.60 0.720 0.970 0.355 0.004 0.125 0.160 0.230 TYP. MAX. 4.70 1.65 12.95 6.10 MIN. 0.175 0.055 0.470 0.225 0.115 0.730 0.980 0.365 0.006 0.135 0.170 0.260 inch TYP. MAX. 0.185 0.065 0.510 0.240 DIM. 1008194C 7/8 SD2903 Information furnished is believed to be accurate and reliable. However, STMicroelectronics assumes no responsibility for the consequences of use of such information nor for any infringement of patents or other rights of third parties which may result from its use. No license is granted by implication or otherwise under any patent or patent rights of STMicroelectronics. Specification mentioned in this publication are subject to change without notice. This publication supersedes and replaces all information previously supplied. STMicroelectronics products are not authorized for use as critical components in life support devices or systems without express written approval of STMicroelectronics. The ST logo is a trademark of STMicroelectronics (c) 1999 STMicroelectronics - Printed in Italy - All Rights Reserved STMicroelectronics GROUP OF COMPANIES Australia - Brazil - Canada - China - France - Germany - Italy - Japan - Korea - Malaysia - Malta - Mexico - Morocco - The Netherlands Singapore - Spain - Sweden - Switzerland - Taiwan - Thailand - United Kingdom - U.S.A. http://www.st.com . 8/8 |
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