PD85004
RF power transistorthe LdmoST plastic family
Features
■■■■■■■
Excellent thermal stabilityCommon source configuration
Broadband performances
POUT = 4 W with 17 dB gain @ 870 MHz Plastic packageESD protection
Supplied in tape and reel
In compliance with the 2002/95/EC european directive
Figure 1.
Pin connection
SOT-
Description
The PD85004 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 13.6 V in common source mode at frequencies of up to 1 GHz.
PD85004’s superior gain and efficiency makes it an ideal solution for mobile radio.
Source
SourceGate
Drain
Table 1.Device summary
Marking8504
PackageSOT-
Packaging Tape and reel
Order code PD85004
August 2008Rev 21/18
www.st.com
18http://oneic.com/
ContentsPD85004
Contents
1
Electrical data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3
1.11.2
Maximum ratings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3Thermal data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3
2Electrical characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
2.12.22.32.4
Static . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4Dynamic . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4ESD protection characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4Moisture sensitivity level . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
345678
Impedances . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5DC curves . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6RF curves . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7Schematic and BOM . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9Demonstration board photo . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11Package mechanical data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
8.18.2
Thermal pad and via design . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14Soldering profile . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15
9Revision history . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17
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PD85004Electrical data
1 Electrical data
1.1 Maximum ratings
Table 2.
SymbolV(BR)DSSVGSIDPDISSTJTSTG
Absolute maximum ratings (TCASE = 25 °C)
Parameter
Drain-source voltageGate-source voltageDrain currentPower dissipation
Max. operating junction temperatureStorage temperature
Value40-0.5 to +15
26150-65 to +150
UnitVVAW°C°C
1.2 Thermal data
Table 3.
SymbolRthJC
Thermal data
Parameter
Junction - case thermal resistance
Value21
Unit°C/W
3/18
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Electrical characteristicsPD85004
2 Electrical characteristics
TCASE = +25 oC
2.1 Static
Table 4.
SymbolIDSSIGSSVGS(Q)VDS(ON)CISSCOSSCRSS
VGS = 0 VVGS = 5 VVDS = 13.6 VVGS = 10 VVGS = 0 VVGS = 0 VVGS = 0 V
Static
Test conditions VDS = 25 VVDS = 0 V
ID = 50 mA
MinTypMax11
UnitμAμAVVpFpFpF
3.90.27
f = 1 MHzf = 1 MHzf = 1 MHz
16141.1
ID = 0.25 AVDS = 13.6 VVDS = 13.6 VVDS = 13.6 V
2.2 Dynamic
Table 5.
SymbolPOUTGPSND
Dynamic
Test conditions
VDD = 13.6 V, IDQ = 50 mA, PIN = 0.1 W, f = 870 MHzVDD = 13.6 V, IDQ = 50 mA, POUT = 4 W, f = 870 MHzVDD = 13.6 V, IDQ = 50 mA, POUT = 4 W, f = 870 MHz
Min4156020:1
Typ51765
Max
UnitWdB%VSWR
LoadVDD = 13.6 V, IDQ = 50 mA, POUT = 4 W, f = 870 MHz
mismatchAll phase angles
2.3 ESD protection characteristics
Table 6.
ESD protection characteristics
Test conditionsHuman body modelMachine model
Class2M3
2.4 Moisture sensitivity level
Table 7.
Moisture sensitivity level
Test methodology
J-STD-020B
RatingMSL 3
4/18
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PD85004Impedances
3 Impedances
Figure 2.
Impedances
Table 8.Broadband impedances
F(MHz)860 880 900 920 940 960
ZGS
ZDL
2.46+ j 6.63 8.38+ j 2,83 2.59+ j 6.83 8.08+ j 3.46
2.63+ j 6.97 7.77 + j 4.10 2.57+ j 7.09 7.50+ j 4.77 2.42+ j 7.17 7.15+ j 5.37 2.27+ j 7.34 6.95+ j 6.07
5/18
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DC curvesPD85004
4 DC curves
Figure 3. DC output characteristicsFigure 4. ID vs VGSID vs VgsVGS=10VVGS=9VVGS=8VVGS=7VPD84002VGS=6VVGS=5VVGS=4VFigure 5.
Capacitances vs drain voltage 302520CRSSCOSSCISSCapacitance (pF)15105002468Vdd (V)101214166/18
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PD85004RF curves
5 RF curves
Figure 6.
Output power and drain efficiency Figure 7.
vs frequency
13.6 V / 50 mA / Pin = 19 dBm Gain vs frequency 13.6 V / 50 mA
Gain vs Frequency13.6V / 50mA 68020705191860Pout (W)44030Gain (dB)50Efficiency (%)171615141312860Pin=19 dBm3PoutEff201028608809009209400960880900920940960Frequency (MHz)Frequency (MHz)Figure 8.
Input return loss vs frequency 13.6 V / 50 mA13.6V / 50mAFigure 9.
Gain vs output power 13.6 V / 50 mA0-2-4-62019Pin=19 dBm1817Gain (dB)IRL (dB)-8-10-1216151413860 MHz900 MHz960 MHz-14-16-18-20820121101234567Pout (W)8408608809009209409609801000Frequency (MHz)Figure 10.Drain current vs output power
13.6 V / 50 mA Figure 11.Output power vs input power
13.6 V / 50 mA 0.840380.7860 MHz900 MHz960 MHzOutput power (dBm)Drain current (A)363432302826860 MHz900 MHz960 MHz0.60.50.40.30.228293031323334353637383940241213141516171819202122232425Output Power (dBm)Input power (dBm) 7/18
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RF curves
Figure 12.Harmonics vs frequency
13.6 V / 50 mA PD85004
0-10-20H2H3Harmonics (dB)-30-40-50-60-70-80860880900920940960Frequency (MHz)8/18
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PD85004Schematic and BOM
6 Schematic and BOM
Figure 13.SchematicVccMSubFR4H=20 milR3B1B2C3C4+C5R2C1L1C2R1TL4TL5C11RFinC6TL1C8TL2C9TL3C10LDMOSPD85004TL6C12C7RFout 9/18
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Schematic and BOMPD85004
Table 9.Components part list
DescriptionFerrite beadFerrite beadCapacitorCapacitorCapacitorCapacitorCapacitorCapacitorCapacitorCapacitorCapacitorCapacitorInductorResistorPotentiometerResistor
120 pF1 nF10 nF10 uF39 pF3.3 pF12 pF22 pF6,8 pF1,5 pF12.55 nH150 Ω10 KΩ1 K
06030603060306030603SMT060306030603060306030603
Value
Case size
ManufacturerPanasonicPanasonicMurataMurataMurataPanasonicMurataMurataMurataMurataMurataMurataCoilcraftTyco electronicsBourns electronicsTyco electronics
3214W-1-103E01623440-1Part codeEXCELDRC35CEXCELDRC35CGRM39-C0G121J50D500GRM39-X7R102K50C560GRM39-X7R103K50C560
EEVHB1V100PGRM39-C0G390J50D500GRM39-C0G3R3C50Z500GRM39-C0G120J50D500GRM39-C0G220J50D500GRM39-C0G6R8D50Z500GRM39-C0G1R5C50Z500
1606-10
Component ID
B1B2C1, C2C3C4C5C6, C7C8C9C10C11C12L1R1R2R3TL1TL2TL3TL4TL5TL6RF in, RF outPD85004Board
W= 0.92 mmL = 13.6 mmW=0.92 mm
Transmission W=0.92 mm
LineW=0.92 mm
W=0.92 mmW=0.92 mm
SMA-CONNLDMOS
50 Ω
L = 3.5 mmL = 4.2 mmL = 3.8 mmL = 4.2 mmL = 11.3 mm60 mils
JOHNSONSTMicroelectronics
FR-4 THk = 0.020\" 2 OZ Cu both sides
142-0701-801PD85004
10/18
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分销商库存信息:
STMPD85004
STEVAL-TDR019V1
