PHILIPS BLF2048

DISCRETE SEMICONDUCTORS
DATA SHEET
M3D427
BLF2048
UHF push-pull power
LDMOS transistor
Preliminary specification
Supersedes data of 1999 Dec 01
2000 Feb 17
Philips Semiconductors
Preliminary specification
UHF push-pull power LDMOS transistor
FEATURES
BLF2048
PINNING - SOT539A
• High power gain
PIN
DESCRIPTION
• Easy power control
1
drain 1
• Excellent ruggedness
2
drain 2
• Source on underside eliminates DC isolators, reducing
common mode inductance
3
gate 1
4
gate 2
5
source connected to flange
• Designed for broadband operation (HF to 2.2 GHz).
APPLICATIONS
• Common source class-AB operation for PCN and PCS
applications in the 1800 to 2200 MHz frequency range.
1
2
DESCRIPTION
3
4
5
Push-pull silicon N-channel enhancement mode lateral
D-MOS transistor encapsulated in a 4-lead flange package
(SOT539A) with a ceramic cap. The common source is
connected to the mounting flange.
Top view
MBK880
Fig.1 Simplified outline.
QUICK REFERENCE DATA
RF performance at Th = 25 °C in a common source test circuit.
f
(MHz)
MODE OF OPERATION
2-tone, class-AB
f1 = 2200; f2 = 2200.1
VDS
(V)
PL
(W)
Gp
(dB)
ηD
(%)
dim
(dBc)
26
120 (PEP)
>10
>30
≤−26
28
140 (PEP)
typ. 11.2
typ. 31
typ. −25
MIN.
MAX.
UNIT
LIMITING VALUES
In accordance with the Absolute Maximum Rating System (IEC 134).
SYMBOL
PARAMETER
VDS
drain-source voltage
−
65
V
VGS
gate-source voltage
−
±15
V
ID
drain current (DC)
−
18
A
Tstg
storage temperature
−65
+150
°C
Tj
junction temperature
−
200
°C
CAUTION
This product is supplied in anti-static packing to prevent damage caused by electrostatic discharge during transport
and handling. For further information, refer to Philips specs.: SNW-EQ-608, SNW-FQ-302A and SNW-FQ-302B.
2000 Feb 17
2
Philips Semiconductors
Preliminary specification
UHF push-pull power LDMOS transistor
BLF2048
THERMAL CHARACTERISTICS
SYMBOL
PARAMETER
CONDITIONS
VALUE
UNIT
Rth j-mb
thermal resistance from junction to mounting-base
PL = 120 W; Tmb = 50 °C, note 1
0.35
K/W
Rth mb-h
thermal resistance from mounting-base to heatsink
0.15
K/W
MAX.
UNIT
Note
1. Thermal resistance is determined under nominal 2-tone RF operating conditions.
CHARACTERISTICS
Tj = 25 °C; per section unless otherwise specified.
SYMBOL
PARAMETER
CONDITIONS
MIN.
TYP.
V(BR)DSS
drain-source breakdown voltage
VGS = 0; ID = 1.4 mA
65
−
−
V
VGSth
gate-source threshold voltage
VDS = 10 V; ID = 140 mA
1.5
−
3.5
V
IDSS
drain-source leakage current
VGS = 0; VDS = 26 V
−
−
10
µA
IDSX
drain cut-off current
VGS = VGSth + 9 V; VDS = 10 V
18
−
−
A
IGSS
gate leakage current
VGS = ±15 V; VDS = 0
−
−
250
nA
gfs
forward transconductance
VDS = 10 V; ID = 5 A
−
4
−
S
RDSon
drain-source on-state resistance
VGS = VGSth + 9 V; ID = 5 A
−
0.17
−
Ω
Crs
feedback capacitance
VGS = 0; VDS = 26 V; f = 1 MHz;
note 1
−
3.4
−
pF
Note
1. Capacitance of die only.
APPLICATION INFORMATION
RF performance in a common source class-AB circuit. Th = 25 °C; Rth j-h = 0.5 K/W; unless otherwise specified.
MODE OF OPERATION
2-tone, class-AB
f
(MHz)
VDS
(V)
IDQ
(mA)
PL
(W)
Gp
(dB)
ηD
(%)
dim
(dBc)
f1 = 2200; f2 = 2200.1
26
2 x 400
120 (PEP)
>10
>30
≤−26
28
2 x 400
140 (PEP)
typ. 11.2
typ. 31
typ. −25
Ruggedness in class-AB operation
The BLF2048 is capable of withstanding a load mismatch corresponding to VSWR = 10 : 1 through all phases under the
following conditions: VDS = 26 V; f = 2200 MHz, PL = 120 W (CW).
2000 Feb 17
3
Philips Semiconductors
Preliminary specification
UHF push-pull power LDMOS transistor
MGT007
20
handbook, halfpage
50
Gp
VDS = 26 V
(dB)
16
BLF2048
MGT008
20
ηD
handbook, halfpage
(%)
(dB)
50
ηD
(%)
Gp
40
16
30
12
VDS = 26 V
40
28 V
28 V
Gp
Gp
12
30
28 V
28 V
ηD
26 V
26 V
8
4
0
0
40
80
120
20
8
10
4
0
160
200
PL (PEP) (W)
0
Fig.3
MGT009
−10
dim
(dBc)
0
160
200
PL (PEP) (W)
Power gain and drain efficiency as functions of
peak envelope load power; typical values.
MGT010
VDS = 26 V
−20
28 V
−30
d3
d3
28 V
−40
d5
80
120
26 V
−40
26 V
40
28 V
d5
−50
−60
160
200
PL (PEP) (W)
0
40
80
f1 = 2000 MHz; f2 = 2000.1 MHz;
IDQ = 2 x 400 mA; Th ≤ 25 °C.
f1 = 2200 MHz; f2 = 2200.1 MHz;
IDQ = 2 x 400 mA; Th ≤ 25 °C.
Fig.4
Fig.5
Intermodulation distortion as a function of
peak envelope load power; typical values.
2000 Feb 17
120
dim
(dBc)
28 V
0
80
−10
VDS = 26 V
−20
−60
40
handbook, halfpage
handbook, halfpage
−50
10
f1 = 2200 MHz; f2 = 2200.1 MHz;
IDQ = 2 x 400 mA; Th ≤ 25 °C.
Power gain and drain efficiency as functions of
peak envelope load power; typical values.
−30
ηD
0
f1 = 2000 MHz; f2 = 2000.1 MHz;
IDQ = 2 x 400 mA; Th ≤ 25 °C.
Fig.2
20
4
120
160
200
PL (PEP) (W)
Intermodulation distortion as a function of
peak envelope load power; typical values.
Philips Semiconductors
Preliminary specification
UHF push-pull power LDMOS transistor
MGT011
8
BLF2048
MGT012
8
handbook, halfpage
handbook, halfpage
Zi
ZL
(Ω)
(Ω)
4
ri
4
RL
0
xi
0
XL
−4
−4
1.6
1.8
2
2.2
2.4
−8
1.6
2.6
f (GHz)
1.8
2
2.2
2.4
2.6
f (GHz)
VDS = 26 V; IDQ = 2 x 400 mA; PL = 160 W (total device);
Th ≤ 25 °C.
VDS = 26 V; IDQ = 2 x 400 mA; PL = 160 W (total device);
Th ≤ 25 °C.
Fig.6
Fig.7
Input impedance per section as a function
of frequency (series components);
typical values.
2000 Feb 17
5
Load impedance per section as a function
of frequency (series components);
typical values.
Philips Semiconductors
Preliminary specification
UHF push-pull power LDMOS transistor
BLF2048
VBIAS
handbook, full pagewidth
R1
P1
R5
C9 C8
C20 C21 C22
L23
L12
C7 C6
R2
C19
L10
L14
L8
C23 C24
VDS
L24
L20
L2
L6
input
50 Ω
L16
L18
L4
C1
C17
L1
B3
B1
C3
C4
C5
C14
C15
C16
L22
output
50 Ω
B4
B2
L5
C2
L19
L17
L7
L21
L3
L9
L15
L11
C25
R4
P2
C13 C12
C18
C11 C10
L13
L25
L26
C26 C27 C28
C29 C30
R6
R3
VDS
MGT013
VBIAS
Fig.8 2.2 GHz class-AB test circuit.
List of components (see Figs 8 and 9)
COMPONENT
DESCRIPTION
VALUE
C1, C2
multilayer ceramic chip capacitor; note 1
5.1 pF
C3, C5
Tekelec variable capacitor
0.6 to 4.5 pF
C4
Tekelec variable capacitor + multilayer
ceramic chip capacitor; note 1
0.6 to 4.5 pF +
2.4 pF
C6, C10
multilayer ceramic chip capacitor; note 2
100 pF
C7, C11
multilayer ceramic chip capacitor; note 2
18 pF
C8, C12, C23,
C29
tantalum SMD capacitor
4.7 µF; 35 V
C9, C13, C24,
C30
tantalum SMD capacitor
10 µF; 35 V
C14
multilayer ceramic chip capacitor; note 3
0.5 pF
C15
multilayer ceramic chip capacitor; note 3
1 pF
C16
multilayer ceramic chip capacitor; note 1
1.5 pF
C17, C18
multilayer ceramic chip capacitor; note 1
10 pF
C19, C25
MKT ceramic chip capacitor
33 nF
C20, C26
multilayer ceramic chip capacitor; note 2
6.2 pF
C21, C27
multilayer ceramic chip capacitor
100 nF
2000 Feb 17
6
DIMENSIONS
CATALOGUE NO.
2222 370 11333
2222 581 16641
Philips Semiconductors
Preliminary specification
UHF push-pull power LDMOS transistor
COMPONENT
DESCRIPTION
BLF2048
VALUE
DIMENSIONS
C22, C28
multilayer ceramic chip capacitor; note 1
8.2 pF
L1
stripline; note 4
47 Ω
L2, L3, L20,
L21
stripline; note 4
15 × 2 mm
L4, L5
stripline; note 4
5.6 × 2.6 mm
L6, L7
stripline; note 4
2.6 × 5.8 mm
L8, L9
stripline; note 4
11.5 × 12 mm
L10, L11
stripline; note 4
2.2 × 16 mm
L12, L13
stripline; note 4
L14, L15
stripline; note 4
10.4 × 13.7 mm
L16, L17
stripline; note 4
6.6 × 5.5 mm
L18, L19
stripline; note 4
7 × 2.6 mm
L22
stripline; note 4
47 Ω
4 x 1 mm
L23, L25
stripline; note 4
47 Ω
1/4 λ at 2.2 GHz
L24, L26
1 turn enamelled 0.7 mm copper wire
B1, B4
balun of semi-rigid cable
50 Ω
B2, B3
semi-rigid cable; note 5
50 Ω
R1, R3, R5,
R6
metal film resistor
5.6 Ω, 0.6 W
R2, R4
metal film resistor
10 Ω, 0.6 W
P1, P2
variable resistor (multiturn)
5 kΩ
57 Ω
CATALOGUE NO.
4.5 × 1 mm
1/4 λ at 2.2 GHz
int.dia. 7 mm;
length: tbf
Notes
1. American Technical Ceramics type 100B or capacitor of same quality.
2. American Technical Ceramics type 100A or capacitor of same quality.
3. American Technical Ceramics type 180R or capacitor of same quality.
4. Semi-rigid cable soldered along the stub to establish balance.
5. The striplines are on a double copper-clad printed-circuit board with Teflon dielectric (εr = 6.15); thickness 0.64 mm.
2000 Feb 17
7
Philips Semiconductors
Preliminary specification
UHF push-pull power LDMOS transistor
handbook, full pagewidth
BLF2048
40
40
60
P1
R1
VBIAS
VDS
R5
C8
C9
C20
R2
C6
C7
L12
L14
PHILIPS
L4
L1
C2 C3 L5 C4
B2,L3
C5
L7
BLF2048
C19
L6
L6
B1,L2
C13
R4
L22
C14
C14
L17
C15
L19 C18
B4,L21
L13
L25 C27
L11
C28
C26
R6
R3
L18 C17
C16
L15
C12
P2
B3,L20
L16
C25
L9
C11
C10
C22 C23 C24
L23 C21
L10
L8
C1
L24
C29 C30
L26
VDS
VBIAS
MGT014
Dimensions in mm.
The components are situated on one side of the copper-clad printed-circuit board with Teflon dielectric (εr = 6.15), thickness 0.64 mm.
The other side is unetched and serves as a ground plane.
Fig.9 Component layout for 2.2 GHz class-AB test circuit.
2000 Feb 17
8
Philips Semiconductors
Preliminary specification
UHF push-pull power LDMOS transistor
BLF2048
PACKAGE OUTLINE
Flanged balanced LDMOST ceramic package; 2 mounting holes; 4 leads
SOT539A
Package under
development
Philips Semiconductors reserves the
right to make changes without notice.
D
A
F
D1
U1
B
q
C
w2 M C M
H1
1
c
2
E1
p
H U2
5
L
3
A
E
w1 M A M B M
4
w3 M
b
Q
e
0
5
10 mm
scale
DIMENSIONS (millimetre dimensions are derived from the original inch dimensions)
UNIT
A
b
c
D
D1
e
E
E1
9.50
5.33 11.81 0.15 31.55 31.52
13.72
9.30
3.96 11.56 0.08 30.94 30.96
mm
inches
9.53
9.27
F
H
H1
L
1.75 17.12 25.53 3.73
1.50 16.10 25.27 2.72
p
Q
q
3.30
3.05
2.31
2.01
35.56
U1
U2
w1
41.28 10.29
0.25
41.02 10.03
w2
w3
0.51
0.25
0.210 0.465 0.006 1.242 1.241
0.374 0.375 0.069 0.674 1.005 0.147 0.130 0.091
1.625 0.405
1.400
0.010 0.020 0.010
0.540
0.156 0.455 0.003 1.218 1.219
0.366 0.365 0.059 0.634 0.995 0.107 0.120 0.079
1.615 0.395
OUTLINE
VERSION
REFERENCES
IEC
JEDEC
EIAJ
ISSUE DATE
99-12-08
99-12-28
SOT539A
2000 Feb 17
EUROPEAN
PROJECTION
9
Philips Semiconductors
Preliminary specification
UHF push-pull power LDMOS transistor
BLF2048
DEFINITIONS
Data Sheet Status
Objective specification
This data sheet contains target or goal specifications for product development.
Preliminary specification
This data sheet contains preliminary data; supplementary data may be published later.
Product specification
This data sheet contains final product specifications.
Limiting values
Limiting values given are in accordance with the Absolute Maximum Rating System (IEC 134). Stress above one or
more of the limiting values may cause permanent damage to the device. These are stress ratings only and operation
of the device at these or at any other conditions above those given in the Characteristics sections of the specification
is not implied. Exposure to limiting values for extended periods may affect device reliability.
Application information
Where application information is given, it is advisory and does not form part of the specification.
LIFE SUPPORT APPLICATIONS
These products are not designed for use in life support appliances, devices, or systems where malfunction of these
products can reasonably be expected to result in personal injury. Philips customers using or selling these products for
use in such applications do so at their own risk and agree to fully indemnify Philips for any damages resulting from such
improper use or sale.
2000 Feb 17
10
Philips Semiconductors
Preliminary specification
UHF push-pull power LDMOS transistor
NOTES
2000 Feb 17
11
BLF2048
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SCA 69
© Philips Electronics N.V. 2000
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Printed in The Netherlands
603516/09/pp12
Date of release: 2000
Feb 17
Document order number:
9397 750 06764