BLF2045
UHF power LDMOS transistor
Rev. 7 — 1 September 2015
Product data sheet
IMPORTANT NOTICE
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Philips Semiconductors
Product specification
UHF power LDMOS transistor
BLF2045
PINNING
FEATURES
• Typical 2-tone performance at a supply voltage of 26 V
and IDQ of 500 mA
PIN
– Output power = 30 W (PEP)
– Gain = 12.5 dB
DESCRIPTION
1
drain
2
gate
3
source, connected to flange
– Efficiency = 32%
– dim = −26 dBc.
• Easy power control
• Excellent ruggedness
• High power gain
• Excellent thermal stability
1
• Designed for broadband operation (1800 to 2200 MHz)
• No internal matching for broadband operation.
3
2
APPLICATIONS
Top view
• RF power amplifiers for GSM, EDGE, CDMA and
W-CDMA base stations and multicarrier applications in
the 1800 to 2200 MHz frequency range
MBK584
• Broadcast drivers.
DESCRIPTION
30 W LDMOS power transistor for base station
applications at frequencies from 1800 to 2200 MHz.
Fig.1 Simplified outline.
ORDERING INFORMATION
PACKAGE
TYPE NUMBER
NAME
BLF2045
−
DESCRIPTION
VERSION
plastic surface mounted package; 3 leads
SOT467C
QUICK REFERENCE DATA
RF performance at Th = 25 °C in a common source test circuit.
MODE OF OPERATION
2-tone, class-AB
f (MHz)
VDS (V)
PL (W)
Gp (dB)
ηD (%)
dim (dBc)
f1 = 2000; f2 = 2000.1
26
30 (PEP)
>10
>30
≤−25
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.
2004 Feb 11
2
Philips Semiconductors
Product specification
UHF power LDMOS transistor
BLF2045
LIMITING VALUES
In accordance with the Absolute Maximum Rating System (IEC 60134).
SYMBOL
PARAMETER
MIN.
MAX.
UNIT
VDS
drain-source voltage
−
65
V
VGS
gate-source voltage
−
±15
V
ID
drain current (DC)
−
4.5
A
Tstg
storage temperature
−65
+150
°C
Tj
junction temperature
−
200
°C
THERMAL CHARACTERISTICS
SYMBOL
Rth(j-h)
PARAMETER
CONDITIONS
thermal resistance from junction to heatsink Ptot = 87.5 W; Th = 25 °C; note 1
Note
1. Thermal resistance is determined under specified RF operating conditions.
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3
VALUE
UNIT
2.1
K/W
Philips Semiconductors
Product specification
UHF power LDMOS transistor
BLF2045
CHARACTERISTICS
Tj = 25 °C unless otherwise specified.
SYMBOL
PARAMETER
CONDITIONS
MIN.
TYP.
MAX.
UNIT
V(BR)DSS
drain-source breakdown voltage
VGS = 0; ID = 0.7 mA
65
−
−
V
VGSth
gate-source threshold voltage
VDS = 10 V; ID = 70 mA
1.5
−
3.5
V
IDSS
drain-source leakage current
VGS = 0; VDS = 26 V
−
−
5
µA
IDSX
drain cut-off current
VGS = VGSth + 9 V; VDS = 10 V
9
−
−
A
IGSS
gate leakage current
VGS = ±15 V; VDS = 0
−
−
125
nA
gfs
forward transconductance
VDS = 10 V; ID = 2.5 A
−
2
−
S
RDSon
drain-source on-state resistance
VGS = VGSth + 9 V; ID = 2.5 A
−
340
−
mΩ
Ciss
input capacitance
VGS = 0; VDS = 26 V; f = 1 MHz
−
38
−
pF
Coss
output capacitance
VGS = 0; VDS = 26 V; f = 1 MHz
−
31
−
pF
Crss
feedback capacitance
VGS = 0; VDS = 26 V; f = 1 MHz
−
1.7
−
pF
MCD889
102
handbook, halfpage
C
(pF)
Coss
Ciss
10
Crss
1
0
10
20
VDS (V)
30
VGS = 0; f = 1 MHz.
Fig.2
Input, output and feedback capacitance as
functions of drain-source voltage, typical
values.
2004 Feb 11
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Philips Semiconductors
Product specification
UHF power LDMOS transistor
BLF2045
APPLICATION INFORMATION
RF performance in a common source class-AB circuit. Th = 25 °C; Rth(mb-h) = 0.65 K/W, unless otherwise specified.
f (MHz)
VDS (V)
IDQ (mA)
PL (W)
Gp (dB)
ηD (%)
dim
(dBc)
f1 = 2000; f2 = 2000.1
26
180
30 (PEP)
>10
>30
≤−25
MODE OF OPERATION
2-tone, class-AB
Ruggedness in class-AB operation
The BLF2045 is capable of withstanding a load mismatch corresponding to VSWR = 10 : 1 through all phases under the
following conditions: VDS = 26 V; PL = 30 W (CW); f = 2000 MHz.
MCD890
20
Gp
handbook, halfpage
50
ηD
(%)
(dB)
16
40
Gp
30
12
ηD
8
20
10
4
0
0
10
0
20
30
40
50
PL (PEP) (W)
Class-AB operation; VDS = 26 V; IDQ = 180 mA;
f1 = 2000 MHz; f2 = 2000.1 MHz.
Fig.3
Power gain and efficiency as functions of
peak envelope load power; typical values.
2004 Feb 11
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Philips Semiconductors
Product specification
UHF power LDMOS transistor
BLF2045
MCD891
0
MCD892
0
handbook, halfpage
handbook, halfpage
dim
(dBc)
d3
(dBc)
−20
−20
d3
d5
(1)
−40
−40
d7
(3)
(2)
−60
−60
0
10
20
30
40
50
PL (PEP) (W)
0
20
30
40
50
PL (PEP) (W)
VDS = 26 V; Th ≤ 25 °C; f1 = 2000 MHz; f2 = 2000.1 MHz.
(1) IDQ = 140 mA.
(2) IDQ = 180 mA.
(3) IDQ = 220 mA.
VDS = 26 V; IDQ = 180 mA; Th ≤ 25 °C;
f1 = 2000 MHz; f2 = 2000.1 MHz.
Fig.4
10
Intermodulation distortion as a function of
peak envelope load power; typical values.
Fig.5
Intermodulation distortion as a function of
peak envelope load power; typical values.
MCD893
5
MCD894
6
handbook, halfpage
handbook, halfpage
ZL
zi
(Ω)
(Ω)
4
4
2
RL
3
xi
0
2
−2
1
XL
−4
ri
0
1.8
1.9
2
−6
1.8
2.2
2.1
f (GHz)
1.9
2
2.2
2.1
f (GHz)
VDS = 26 V; IDQ = 180 mA; PL = 45 W; Th ≤ 25 °C.
VDS = 26 V; IDQ = 180 mA; PL = 45 W; Th ≤ 25 °C.
Fig.6
Fig.7
Input impedance as a function of frequency
(series components); typical values.
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Load impedance as a function of frequency
(series components); typical values.
Philips Semiconductors
Product specification
UHF power LDMOS transistor
BLF2045
F1
handbook, full pagewidth
R2
R1
C11 C12 C13 C14
Vgate
C6
L4
50 Ω
input
L1
L2
C2
L3
C10
C5
L10
L5
C15 C16
L1 2
C3
C1
Vdd
L6
C4
L9
L14 C9
L11 L13 L15
C7
L7
L16
50 Ω
output
C8
MCD895
L8
Fig.8 Class-AB test circuit for 2 GHz.
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Philips Semiconductors
Product specification
UHF power LDMOS transistor
BLF2045
List of components (see Figs 8 and 9)
COMPONENT
DESCRIPTION
VALUE
C2, C4, C7 and C8
Tekelec variable capacitor; type 37281
C3
multilayer ceramic chip capacitor; note 1 2.4 pF
C1, C5, C9 and C10
multilayer ceramic chip capacitor; note 1 11 pF
C11
multilayer ceramic chip capacitor; note 2 1 nF
C12
multilayer ceramic chip capacitor
DIMENSIONS CATALOGUE NO.
0.4 to 2.5 pF
100 nF
C6, C13, C14 and C15 tantalum SMD capacitor
4.5 µF; 50 V
C16
electrolytic capacitor
100 µF; 63 V
F1
Ferroxcube chip-bead 8DS3/3/8/9-4S2
2222 581 16641
2222 037 58101
4330 030 36301
L1
stripline; note 3
50 Ω
13 × 0.9 mm
L2
stripline; note 3
50 Ω
2 × 0.9 mm
L3
stripline; note 3
34.3 Ω
15 × 1.7 mm
L4 and L12
stripline; note 3
50 Ω
37 × 0.9 mm
L5
stripline; note 3
34.3 Ω
6 × 1.7 mm
L6
stripline; note 3
23.6 Ω
13 × 2.9 mm
L7
stripline; note 3
5.6 Ω
6 × 15.8 mm
L8
stripline; note 3
3.5 Ω
6 × 26 mm
L9
stripline; note 3
31.9 Ω
12 × 1.9 mm
L10
stripline; note 3
24.9 Ω
7.4 × 2.7 mm
L11
stripline; note 3
50 Ω
3 × 0.9 mm
L13
stripline; note 3
50 Ω
4.15 × 0.9 mm
L14
stripline; note 3
26.3 Ω
2.5 × 2.5 mm
L15
stripline; note 3
50 Ω
2.8 × 0.9 mm
L16
stripline; note 3
50 Ω
14 × 0.9 mm
R1 and R2
metal film resistor
10 Ω, 0.6 W
2322 156 11009
Notes
1. American Technical Ceramics type 100A or capacitor of same quality.
2. American Technical Ceramics type 100B or capacitor of same quality.
3. The striplines are on a double copper-clad printed-circuit board with Teflon dielectric (εr = 6.15); thickness 0.64 mm.
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Philips Semiconductors
Product specification
UHF power LDMOS transistor
BLF2045
50
handbook, full pagewidth
50
60
PH98072 IN
PH98073 OUT
− C15
C14
C13
F1
C6
C12
+
C16
R1
C5
50 Ω
input
C11
R2
C10
C4
C1 C2
C9
50 Ω
output
C3
C7
PH98072 IN
C8
PH98073 OUT
MCD896
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 GHz class-AB test circuit.
2004 Feb 11
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Philips Semiconductors
Product specification
UHF power LDMOS transistor
BLF2045
PACKAGE OUTLINE
Flanged LDMOST ceramic package; 2 mounting holes; 2 leads
SOT467C
D
A
F
3
D1
U1
B
q
c
C
1
E1
H
U2
E
A
w1 M A M B M
p
2
Q
w2 M C M
b
0
5
10 mm
scale
DIMENSIONS (millimetre dimensions are derived from the original inch dimensions)
UNIT
A
b
c
D
D1
E
E1
F
H
p
Q
q
U1
U2
w1
w2
mm
4.67
3.94
5.59
5.33
0.15
0.10
9.25
9.04
9.27
9.02
5.92
5.77
5.97
5.72
1.65
1.40
18.54
17.02
3.43
3.18
2.21
1.96
14.27
20.45
20.19
5.97
5.72
0.25
0.51
inch
0.184 0.220 0.006
0.155 0.210 0.004
0.364 0.365
0.356 0.355
0.233
0.227
0.235 0.065
0.225 0.055
0.73
0.67
0.135 0.087
0.805 0.235
0.562
0.010 0.020
0.125 0.077
0.795 0.225
OUTLINE
VERSION
REFERENCES
IEC
JEDEC
EIAJ
ISSUE DATE
99-12-06
99-12-28
SOT467C
2004 Feb 11
EUROPEAN
PROJECTION
10
Philips Semiconductors
Product specification
UHF power LDMOS transistor
BLF2045
DATA SHEET STATUS
LEVEL
DATA SHEET
STATUS(1)
PRODUCT
STATUS(2)(3)
Development
DEFINITION
I
Objective data
II
Preliminary data Qualification
This data sheet contains data from the preliminary specification.
Supplementary data will be published at a later date. Philips
Semiconductors reserves the right to change the specification without
notice, in order to improve the design and supply the best possible
product.
III
Product data
This data sheet contains data from the product specification. Philips
Semiconductors reserves the right to make changes at any time in order
to improve the design, manufacturing and supply. Relevant changes will
be communicated via a Customer Product/Process Change Notification
(CPCN).
Production
This data sheet contains data from the objective specification for product
development. Philips Semiconductors reserves the right to change the
specification in any manner without notice.
Notes
1. Please consult the most recently issued data sheet before initiating or completing a design.
2. The product status of the device(s) described in this data sheet may have changed since this data sheet was
published. The latest information is available on the Internet at URL http://www.semiconductors.philips.com.
3. For data sheets describing multiple type numbers, the highest-level product status determines the data sheet status.
DEFINITIONS
DISCLAIMERS
Short-form specification The data in a short-form
specification is extracted from a full data sheet with the
same type number and title. For detailed information see
the relevant data sheet or data handbook.
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
Semiconductors customers using or selling these products
for use in such applications do so at their own risk and
agree to fully indemnify Philips Semiconductors for any
damages resulting from such application.
Limiting values definition Limiting values given are in
accordance with the Absolute Maximum Rating System
(IEC 60134). 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.
Right to make changes Philips Semiconductors
reserves the right to make changes in the products including circuits, standard cells, and/or software described or contained herein in order to improve design
and/or performance. When the product is in full production
(status ‘Production’), relevant changes will be
communicated via a Customer Product/Process Change
Notification (CPCN). Philips Semiconductors assumes no
responsibility or liability for the use of any of these
products, conveys no licence or title under any patent,
copyright, or mask work right to these products, and
makes no representations or warranties that these
products are free from patent, copyright, or mask work
right infringement, unless otherwise specified.
Application information Applications that are
described herein for any of these products are for
illustrative purposes only. Philips Semiconductors make
no representation or warranty that such applications will be
suitable for the specified use without further testing or
modification.
2004 Feb 11
11
Philips Semiconductors – a worldwide company
Contact information
For additional information please visit http://www.semiconductors.philips.com.
Fax: +31 40 27 24825
For sales offices addresses send e-mail to: sales.addresses@www.semiconductors.philips.com.
SCA76
© Koninklijke Philips Electronics N.V. 2004
All rights are reserved. Reproduction in whole or in part is prohibited without the prior written consent of the copyright owner.
The information presented in this document does not form part of any quotation or contract, is believed to be accurate and reliable and may be changed
without notice. No liability will be accepted by the publisher for any consequence of its use. Publication thereof does not convey nor imply any license
under patent- or other industrial or intellectual property rights.
Printed in The Netherlands
R77/06/pp12
Date of release: 2004
Feb 11
Document order number:
9397 750 12539