June 2011 Doc ID 13593 Rev 3 1/16
16
PD85025-E
RF power transistor, LdmoST plastic family
N-channel enhancement-mode lateral MOSFETs
Features
■Excellent thermal stability
■Common source configuration
■POUT = 25 W with 15.7 dB gain @ 870 MHz /
13.6 V
■Plastic package
■ESD protection
■In compliance with the 2002/95/EC European
directive
Description
The PD85025-E is a common source N-channel,
enhancement-mode lateral field-effect RF power
transistor. It is designed for high gain, broadband
commercial and industrial applications. It
operates at 13.6 V in common source mode at
frequencies of up to 1 GHz. PD85025-E boasts
the excellent gain, linearity and reliability of ST’s
latest LDMOS technology mounted in the first true
SMD plastic RF power package, PowerSO-10RF.
PD85025-E’s superior linearity performance
makes it an ideal solution for car mobile radio.
The PowerSO-10 plastic package, designed to
offer high reliability, is the first ST JEDEC
approved, high power SMD package. It has been
specially optimized for RF needs and offers
excellent RF performances and ease of assembly.
Figure 1. Pin connection
PowerSO-10RF
(formed lead)
PowerSO-10RF
(straight lead)
Gate
Source
Drain
Table 1. Device summary
Order codes Package Packing
PD85025-E PowerSO-10RF (formed lead) Tube
PD85025S-E PowerSO-10RF (straight lead)
PD85025TR-E PowerSO-10RF (formed lead) Tape and reel
PD85025STR-E PowerSO-10RF (straight lead)
www.st.com
Contents PD85025-E
2/16 Doc ID 13593 Rev 3
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
2.3 ESD protection characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
2.4 Moisture sensitivity level . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
3 Impedance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
4 Typical performance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
5 Package mechanical data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
6 Revision history . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14
PD85025-E Electrical data
Doc ID 13593 Rev 3 3/16
1 Electrical data
1.1 Maximum ratings
1.2 Thermal data
Table 2. Absolute maximum ratings (TCASE = 25 °C)
Symbol Parameter Value Unit
V(BR)DSS Drain-source voltage 40 V
VGS Gate-source voltage -0.5 to +15 V
IDDrain current 7 A
PDISS Power dissipation (@ TC = 70 °C) 79 W
TJMax. operating junction temperature 165 °C
TSTG Storage temperature -65 to +150 °C
Table 3. Thermal data
Symbol Parameter Value Unit
RthJC Junction - case thermal resistance 1.2 °C/W
Electrical characteristics PD85025-E
4/16 Doc ID 13593 Rev 3
2 Electrical characteristics
TCASE = +25 oC
2.1 Static
2.2 Dynamic
2.3 ESD protection characteristics
2.4 Moisture sensitivity level
Table 4. Static
Symbol Test conditions Min Typ Max Unit
IDSS VGS = 0 V VDS = 25 V 1 µA
IGSS VGS = 5 V VDS = 0 V 1 µA
VGS(Q) VDS = 10 V ID = 300 mA 3.2 4.8 V
VDS(ON) VGS = 10 V ID = 1 A 0.27 0.31 V
CISS VGS = 0 V VDS = 12.5 V f = 1 MHz 55 pF
COSS VGS = 0 V VDS = 12.5 V f = 1 MHz 40 pF
CRSS VGS = 0 V VDS = 12.5 V f = 1 MHz 1.5 pF
Table 5. Dynamic
Symbol Test conditions Min Typ Max Unit
P3dB VDD = 13.6 V, IDQ = 300 mA f = 870 MHz 25 30 - W
GPVDD = 13.6 V, IDQ = 300 mA, POUT = 10 W, f = 870 MHz 15 17.3 - dB
hDVDD = 13.6 V, IDQ = 300 mA, POUT = P3dB, f = 870 MHz 60 66 - %
Load
mismatch
VDD = 17 V, IDQ = 300 mA, POUT = 45 W, f = 870 MHz
All phase angles 20:1 - VSWR
Table 6. ESD protection characteristics
Test conditions Class
Human body model 2
Machine model M3
Table 7. Moisture sensitivity level
Test conditions Rating
J-STD-020B MSL 3
PD85025-E Impedance
Doc ID 13593 Rev 3 5/16
3 Impedance
Figure 2. Current conventions
Table 8. Impedance data
Frequency (MHz) ZIN (Ω)Z
DL(Ω)
870 MHz 0.21 +j 1.82 1.23 -j 0.98
Typical performance PD85025-E
6/16 Doc ID 13593 Rev 3
4 Typical performance
Figure 3. Capacitances vs drain voltage
Figure 4. DC output characteristics Figure 5. DC output characteristics
0
20
40
60
80
100
120
01020304050
VDS (V)
Capacitances (pF)
Coss Crss Cis s
p
0
1
2
3
4
5
6
0510
VDS[V]
Vgs = 4. 0V Vgs = 4.5V
Vgs = 5. 0V Vgs = 5.5V
Vgs = 6. 0V
Tamb = - 40 °C
ID[A]
0
1
2
3
4
5
6
0510
VDS[V]
Vgs = 4.0V Vgs = 4.5V
Vgs = 5.0V Vgs = 5.5V
Vgs = 6.0V
Tamb = + 20 °C
ID[A]
PD85025-E Typical performance
Doc ID 13593 Rev 3 7/16
Figure 6. DC output characteristics Figure 7. Gain vs output power and
Bias current
0
1
2
3
4
5
6
024681012
VDS[V]
Vgs = 4.0V Vgs = 4.5V
Vgs = 5.0V Vgs = 5.5V
Vgs = 6.0V
Tam b = + 60 °C
ID[A]
10
11
12
13
14
15
16
17
18
19
20
0 5 10 15 20 25 30 35
Input power (W )
Output power (W)
Idq = 100mA Idq = 200mA Idq = 300mA
Freq = 870 MHz
Vdd = 13.6V
Gain (dB)
Output power (W)
Figure 8. Ouptut power and efficiency vs
Input power
Figure 9. Output power and drain current vs
Gate voltage
0
5
10
15
20
25
30
35
40
0.0 0.5 1.0 1.5 2.0 2.5
Input power (W )
O utput p ow e r ( W )
0
10
20
30
40
50
60
70
80
Effi ciency (%)
Pout Eff
Freq = 870 MHz
Vd d = 13.6V
Idq = 300 mA
0
4
8
12
16
20
24
28
32
0123456
Vgs (V)
Pout ( W )
0
0.4
0.8
1.2
1.6
2
2.4
2.8
3.2
Id (A)
Pout Id
Freq = 870 MH z
Pin = 0.4W
Idq = 300mA
Typical performance PD85025-E
8/16 Doc ID 13593 Rev 3
Figure 10. Pout and drain current vs supply
voltage
Figure 11. Pout and drain current vs supply
voltage
0
5
10
15
20
25
30
710131619
Vdd (V)
Pout (W)
0
0.5
1
1.5
2
2.5
3
Id (A)
Pout Id
Freq = 870 MH z
Idq = 300mA
Pin = 0.4W
0
5
10
15
20
25
30
35
40
710131619
Vdd (V)
Pout (W)
0
0.5
1
1.5
2
2.5
3
3.5
4
Id (A)
Pout Id
Freq = 870 MHz
Idq = 300mA
Pin = 1W
PD85025-E Package mechanical data
Doc ID 13593 Rev 3 9/16
5 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.
\
Package mechanical data PD85025-E
10/16 Doc ID 13593 Rev 3
Note: Resin protrusions not included (max value: 0.15 mm per side)
Table 9. PowerSO-10RF formed lead (gull wing) mechanical data
Dim. mm. Inch
Min Typ Max Min Typ Max
A1 0 0.05 0.1 0. 0.0019 0.0038
A2 3.4 3.5 3.6 0.134 0.137 0.142
A3 1.2 1.3 1.4 0.046 0.05 0.054
A4 0.15 0.2 0.25 0.005 0.007 0.009
a0.2 0.007
b 5.4 5.53 5.65 0.212 0.217 0.221
c 0.23 0.27 0.32 0.008 0.01 0.012
D 9.4 9.5 9.6 0.370 0.374 0.377
D1 7.4 7.5 7.6 0.290 0.295 0.298
E 13.85 14.1 14.35 0.544 0.555 0.565
E1 9.3 9.4 9.5 0.365 0.37 0.375
E2 7.3 7.4 7.5 0.286 0.292 0.294
E3 5.9 6.1 6.3 0.231 0.24 0.247
F0.5 0.019
G1.2 0.047
L 0.8 1 1.1 0.030 0.039 0.042
R1 0.25 0.01
R2 0.8 0.031
T 2 deg 5 deg 8 deg 2 deg 5 deg 8 deg
T1 6 deg 6 deg
T2 10 deg 10 deg
PD85025-E Package mechanical data
Doc ID 13593 Rev 3 11/16
Figure 12. Package dimensions
Table 10. PowerSO-10RF straight lead mechanical data
Dim. mm. Inch
Min Typ Max Min Typ Max
A1 1.62 1.67 1.72 0.064 0.065 0.068
A2 3.4 3.5 3.6 0.134 0.137 0.142
A3 1.2 1.3 1.4 0.046 0.05 0.054
A4 0.15 0.2 0.25 0.005 0.007 0.009
a0.2 0.007
b 5.4 5.53 5.65 0.212 0.217 0.221
c 0.23 0.27 0.32 0.008 0.01 0.012
D 9.4 9.5 9.6 0.370 0.374 0.377
D1 7.4 7.5 7.6 0.290 0.295 0.298
E 15.15 15.4 15.65 0.595 0.606 0.615
E1 9.3 9.4 9.5 0.365 0.37 0.375
E2 7.3 7.4 7.5 0.286 0.292 0.294
E3 5.9 6.1 6.3 0.231 0.24 0.247
F0.5 0.019
G1.2 0.047
R1 0.25 0.01
R2 0.8 0.031
T1 6 deg 6 deg
T2 10 deg 10 deg
Critical dimensions:
- Stand-off (A1)
- Overall width (L)
Package mechanical data PD85025-E
12/16 Doc ID 13593 Rev 3
Note: Resin protrusions not included (max value: 0.15 mm per side)
Figure 13. Package dimensions
CRITICAL DIMENSIONS:
- Overall width (L)
PD85025-E Package mechanical data
Doc ID 13593 Rev 3 13/16
Figure 14. Tube information
Package mechanical data PD85025-E
14/16 Doc ID 13593 Rev 3
Figure 15. Reel information
PD85025-E
16/16 Doc ID 13593 Rev 3
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