polyfet rf devices LK802 General Description Silicon VDMOS and LDMOS transistors designed specifically for broadband RF applications. Suitable for Military Radios, Cellular and Paging Amplifier Base Stations, Broadcast FM/AM, MRI, Laser Driver and others. SILICON GATE ENHANCEMENT MODE RF POWER LDMOS TRANSISTOR 45.0 Watts Push - Pull Package Style AK "Polyfet"TM process HIGH EFFICIENCY, LINEAR HIGH GAIN, LOW NOISE ROHS COMPLIANT features low feedback and output capacitances, resulting in high Ft transistors with high input impedance and high efficiency. o ABSOLUTE MAXIMUM RATINGS ( T = 25 C ) Total Device Dissipation 140 Watts Junction to Case Thermal Resistance Maximum Junction Temperature o 1.10 C/W o 200 C DC Drain Current Storage Temperature o o -65 C to 150 C RF CHARACTERISTICS ( SYMBOL PARAMETER MIN Gps Common Source Power Gain η Drain Efficiency VSWR TYP 8.5 A Drain to Source Voltage Gate to Source Voltage 70 V 70 V 20 V 45.0 WATTS OUTPUT ) MAX 12 50 Load Mismatch Tolerance Drain to Gate Voltage 10:1 UNITS TEST CONDITIONS dB Idq = 0.80 A, Vds = 28.0 V, F =1,000 MHz % Idq = 0.80 A, Vds = 28.0 V, F =1,000 MHz Relative Idq = 0.80 A, Vds = 28.0 V, F =1,000 MHz ELECTRICAL CHARACTERISTICS ( EACH SIDE ) SYMBOL PARAMETER MIN TYP MAX UNITS TEST CONDITIONS V Bvdss Drain Breakdown Voltage Idss Zero Bias Drain Current 2.0 mA Vds = 28.0 V, Vgs = 0V Igss Gate Leakage Current 1 uA Vds = 0V Vgs = 30V Vgs Gate Bias for Drain Current 5 V gM Forward Transconductance Rdson Saturation Resistance Idsat Saturation Current Ciss Common Source Input Capacitance Crss Common Source Feedback Capacitance Coss Common Source Output Capacitance 65 2 Ids = 0.20 mA, Vgs = 0V Ids = 0.20 A, Vgs = Vds 1.6 Mho Vds = 10V, Vgs = 5V 0.50 Ohm Vgs = 20V, Ids = 5.00 A 11.00 Amp Vgs = 20V, Vds = 10V 60.0 pF Vds = 28.0 Vgs = 0V, F = 1 MHz 2.0 pF Vds = 28.0 Vgs = 0V, F = 1 MHz 30.0 pF Vds = 28.0 Vgs = 0V, F = 1 MHz POLYFET RF DEVICES REVISION 10/01/2007 1110 Avenida Acaso, Camarillo, Ca 93012 Tel:(805) 484-4210 FAX: (805) 484-3393 EMAIL:[email protected] URL:www.polyfet.com LK802 POUT VS PIN GRAPH CAPACITANCE VS VOLTAGE LK802 POUT VS PIN F=1000 MHZ; IDQ=1.6A; VDS=28V L2B 2 DICE CAPACITANCE 1000 60 18.00 17.00 Coss 50 16.00 Pout 100 15.00 40 Gain Ciss 14.00 10 13.00 30 Efficiency = 50% 12.00 20 Crss 11.00 0 0.5 1 1.5 2 PIN IN WATTS 2.5 3 3.5 1 4 0 4 8 12 16 20 24 28 VDS IN VOLTS IV CURVE ID & GM VS VGS L2B 2 DIE IV L2B 2 DIE ID & GM Vs VG 100.00 Id in amps; Gm in mhos 12 10 Id 10.00 ID IN AMPS 8 6 4 2 1.00 gM 0.10 0.01 0 0 2 vg=2v 4 6 Vg=4v 8 10 12 14 VDS IN VOLTS vg=8v Vg=6v 16 0 18 20 0 2 vg=12v Zin Zout 4 6 8 10 Vgs in Volts 12 14 16 18 PACKAGE DIMENSIONS IN INCHES Tolerance .XX +/-0.01 POLYFET RF DEVICES .XXX +/-.005 inches REVISION 10/01/2007 1110 Avenida Acaso, Camarillo, Ca 93012 Tel:(805) 484-4210 FAX: (805) 484-3393 EMAIL:[email protected] URL:www.polyfet.com