PHILIPS BLV946

DISCRETE SEMICONDUCTORS
DATA SHEET
BLV946
UHF power transistor
Product specification
Supersedes data of 1995 Jun 29
1997 Oct 30
Philips Semiconductors
Product specification
UHF power transistor
BLV946
FEATURES
PINNING - SOT273A
• Internal input and output matching for easy matching,
high gain and efficiency
PIN
• Poly-silicon emitter ballasting resistors for an optimum
temperature profile
1
emitter
2
emitter
3
collector
4
base
5
emitter
6
emitter
• Gold metallization ensures excellent reliability.
APPLICATIONS
• Base stations in the 850 to 960 MHz frequency range.
DESCRIPTION
DESCRIPTION
handbook, halfpage
2
4
6
1
3
5
NPN silicon planar transistor intended for common emitter
class-AB operation. The transistor has internal input and
output matching by means of MOS capacitors.
The encapsulation is a SOT273A flange envelope with a
ceramic cap. All leads are isolated from the flange.
Top view
MBK131
Fig.1 Simplified outline and symbol.
QUICK REFERENCE DATA
RF performance at Th = 25 °C in a common emitter test circuit.
MODE OF OPERATION
f
(MHz)
VCE
(V)
PL
(W)
Gp
(dB)
ηC
(%)
CW, class-AB
960
26
40
≥9
≥55
WARNING
Product and environmental safety - toxic materials
This product contains beryllium oxide. The product is entirely safe provided that the BeO disc is not damaged.
All persons who handle, use or dispose of this product should be aware of its nature and of the necessary safety
precautions. After use, dispose of as chemical or special waste according to the regulations applying at the location of
the user. It must never be thrown out with the general or domestic waste.
1997 Oct 30
2
Philips Semiconductors
Product specification
UHF power transistor
BLV946
LIMITING VALUES
In accordance with the Absolute Maximum Rating System (IEC 134).
SYMBOL
PARAMETER
CONDITIONS
MIN.
MAX.
UNIT
VCBO
collector-base voltage
open emitter
−
70
V
VCEO
collector-emitter voltage
open base
−
30
V
VEBO
emitter-base voltage
open collector
−
3
V
IC
collector current (DC)
−
6
A
IC(AV)
average collector current
−
6
A
Ptot
total power dissipation
−
90
W
Tstg
storage temperature range
−65
+150
°C
Tj
operating junction temperature
−
+200
°C
up to Tmb = 25 °C
THERMAL CHARACTERISTICS
SYMBOL
PARAMETER
CONDITIONS
Rth j-mb
thermal resistance from junction to
mounting base
Rth mb-h
thermal resistance from mounting
base to heatsink
Ptot = 90 W; Tmb = 25 °C
MLD231
10
VALUE
UNIT
1.94
K/W
0.3
K/W
MLD232
120
handbook, halfpage
handbook, halfpage
Ptot
(W)
IC
(A)
(2)
80
(1)
(2)
(1)
40
1
1
10
V CE (V)
0
10 2
0
(1) Tmb = 25 °C.
(2) Th = 70 °C.
80
120
Th ( o C)
(1) Continuous operation.
(2) Short-time operation during mismatch.
Fig.2 DC SOAR.
1997 Oct 30
40
Fig.3 Power derating curve.
3
160
Philips Semiconductors
Product specification
UHF power transistor
BLV946
CHARACTERISTICS
Tj = 25 °C unless otherwise specified.
SYMBOL
PARAMETER
CONDITIONS
V(BR)CBO
collector-base breakdown voltage
MIN.
TYP.
MAX.
UNIT
open emitter; IC = 30 mA
70
−
−
V
V(BR)CEO
collector-emitter breakdown voltage
open base; IC = 60 mA
30
−
−
V
V(BR)EBO
emitter-base breakdown voltage
open collector; IE = 1.2 mA
3
−
−
V
ICES
collector leakage current
VBE = 0; VCE = 28 V
−
−
3
mA
hFE
DC current gain
VCE = 10 V; IC = 2 A; note 1
30
−
120
Cc
collector capacitance
VCB = 26 V; IE = ie = 0;
f = 1 MHz; note 2
−
33
−
Notes
1. Measured under pulsed conditions: tp ≤ 500 µs; δ ≤ 0.01.
2. CC value is that of the die only; it is not measurable because of internal matching network.
MLD233
100
handbook, halfpage
h FE
80
(1)
60
(2)
40
20
0
0
1
2
3
4
5
6
I C (A)
Measured under pulsed conditions; tp ≤ 500 µs; δ ≤ 0.01.
(1) VCE = 26 V.
(2) VCE = 10 V.
Fig.4
DC current gain as a function of collector
current; typical values.
1997 Oct 30
4
pF
Philips Semiconductors
Product specification
UHF power transistor
BLV946
APPLICATION INFORMATION
RF performance at Th = 25 °C in a common emitter, class-AB test circuit; Rth mb-h = 0.3 K/W.
MODE OF OPERATION
f
(MHz)
VCE
(V)
ICQ
(mA)
PL
(W)
Gp
(dB)
ηC
(%)
CW, class-AB
960
26
130
40
≥9
typ. 11
≥55
typ. 60
Ruggedness in class-AB operation
The BLV946 is capable of withstanding a load mismatch corresponding to VSWR = 5 : 1 through all phases at rated
output power, under the following conditions: VCE = 26 V; f = 960 MHz; ICQ = 130 mA; Th = 25 °C; Rth mb-h = 0.3 K/W.
MLD234
16
MLD235
80
handbook, halfpage
60
handbook, halfpage
η
(%)
Gp
(dB)
PL
(W)
60
12
Gp
40
40
8
η
20
20
4
0
0
0
20
40
0
60
0
P L (W)
2
VCE = 26 V.
ICQ = 130 mA.
VCE = 26 V.
ICQ = 130 mA.
f = 960 MHz.
f = 960 MHz.
Fig.5
Power gain and efficiency as functions of
load power; typical values.
1997 Oct 30
Fig.6
5
4
6
8
P i (W)
10
Load power as a function of input power;
typical values.
Philips Semiconductors
Product specification
UHF power transistor
BLV946
handbook, full pagewidth
L6
Vbias
C7
C9
L7
C12
R1
C5
C6
C4
R2
C8
L5
L8
C10
VCC
C14
C13
C15
C11
,,,, ,,,,,,,,,
,,,, ,,,,,,,,,
,,,,,
L9
input
50 Ω
L1
C1
L2
L4
C3
DUT
L10
C16 L11
C2
L12
C17
output
50 Ω
C18
L3
MLD236
Fig.7 Class-AB test circuit at 960 MHz.
List of components
COMPONENT
DESCRIPTION
VALUE
DIMENSIONS
CATALOGUE No.
C1, C2, C17, C18
TEKELEC variable
capacitor type 6451
12 pF
C3, C16
multilayer ceramic chip
capacitor; note 1
68 pF, 500 V
C4, C13
electrolytic capacitor
10 µF, 63 V
C5, C8, C10, C13,
C15
multilayer ceramic chip
capacitor; note 1
20 pF, 500 V
C6
multilayer ceramic chip
capacitor
100 nF, 50 V
C7, C11
multilayer ceramic chip
capacitor; note 1
100 pF, 500 V
C9
multilayer ceramic chip
capacitor
470 pF, 50 V
2222 731 18471
C12
multilayer ceramic chip
capacitor
10 nF, 50 V
2222 731 18103
C14
multilayer ceramic chip
capacitor
22 nF, 50 V
2222 731 18223
L1
stripline; note 2
50 Ω
length 36 mm
width 2.2 mm
L2
stripline; note 2
50 Ω
length 8 mm
width 2.2 mm
L3, L9
stripline; note 2
8Ω
length 10 mm
width 20 mm
L4, L10
stripline; note 2
37 Ω
length 4.5 mm
width 3.5 mm
1997 Oct 30
6
2222 030 28109
2222 581 76641
Philips Semiconductors
Product specification
UHF power transistor
COMPONENT
BLV946
DESCRIPTION
VALUE
DIMENSIONS
2.2 µH
L5
microchoke
L6, L7
Ferroxcube wide band
HF choke, grade 3B
L8
4.5 turns enamelled 1 mm
copper wire
50 nH
internal dia. 4 mm
close wound
L11
stripline; note 2
50 Ω
length 7 mm
width 2.2 mm
L12
stripline; note 2
50 Ω
length 37 mm
width 2.2 mm
R1, R2
metal film resistor
100 Ω; 0.4 W
CATALOGUE No.
4322 057 02281
4312 020 36642
2322 171 11001
Notes
1. American Technical Ceramics type 100B or capacitor of same quality.
2. The striplines are on a double copper-clad printed-circuit board, with PTFE microfibre-glass dielectric (εr = 2.2);
thickness 1⁄32"; thickness of the copper sheet 2 × 35 µm.
1997 Oct 30
7
Philips Semiconductors
Product specification
UHF power transistor
BLV946
70
handbook, full pagewidth
70
70
70
KV9004
KV9005
C5
V bias C4
C14 C13
C10 C12
C6
C8
C7
L6
L5
C9
L3
L9
L8
C11
C15
VCC
L7
R2
R1
L1
L2
L11
L4
C2
L10
C3
C16
L12
C17
C18
C1
MLD237
Dimensions in mm.
The components are located on one side of the copper-clad PTFE microfibre-glass board, the other side is unetched and serves as a ground plane.
Earth connections from the component side to the ground plane are made by through metallization.
Fig.8 Component layout and printed circuit board for 960 MHz class-AB test circuit.
1997 Oct 30
8
Philips Semiconductors
Product specification
UHF power transistor
BLV946
MLD239
MLD238
10
10
handbook, halfpage
handbook, halfpage
Zi
(Ω)
ZL
(Ω)
xi
5
5
RL
ri
0
0
5
5
XL
10
840
880
920
960
10
840
1000
f (MHz)
VCE = 26 V; ICQ = 130 mA; PL = 40 W;
Th = 25 °C; Rth mb-h = 0.3 K/W.
Fig.9
880
960
920
1000
f (MHz)
VCE = 26 V; ICQ = 130 mA; PL = 40 W;
Th = 25 °C; Rth mb-h = 0.3 K/W.
Input impedance as a function of frequency
(series components); typical values.
Fig.10 Load impedance as a function of frequency
(series components); typical values.
MLD240
14
handbook, halfpage
Gp
(dB)
12
handbook, halfpage
10
Zi
8
6
820
ZL
880
940
1000
MBA451
1060
f (MHz)
VCE = 26 V; ICQ = 130 mA; PL = 40 W;
Th = 25 °C; Rth mb-h = 0.3 K/W.
Fig.11 Power gain as a function of frequency;
typical values.
1997 Oct 30
Fig.12 Definition of transistor impedance.
9
Philips Semiconductors
Product specification
UHF power transistor
BLV946
PACKAGE OUTLINE
Flanged ceramic package; 2 mounting holes; 6 leads
SOT273A
D
A
F
U1
B
q
C
w2 M C
H1
b1
c
5
H
3
1
E
U2
6
A
4
2
w1 M A B
p
Q
w3 M
b
e
0
5
10 mm
scale
DIMENSIONS (millimetre dimensions are derived from the original inch dimensions)
UNIT
A
b
b1
c
mm
7.45
7.27
2.42
1.80
3.18
2.92
0.16
0.10
inches
0.286
0.254
0.095 0.125
0.071 0.115
OUTLINE
VERSION
D
e
F
H
H1
p
Q
q
U1
U2
w1
w2
w3
10.93 10.29
10.66 10.03
4.35
3.05
2.54
15.75
14.73
10.93
10.66
3.31
3.04
4.35
4.03
18.42
24.90
24.63
10.29
10.03
0.51
1.02
0.25
0.006 0.430 0.405
0.004 0.420 0.395
0.171
0.120
0.100
0.62
0.58
0.43
0.42
0.130
0.120
0.171
0.725
0.159
0.98
0.97
0.405
0.395
0.02
0.04
0.01
E
REFERENCES
IEC
JEDEC
EIAJ
SOT273A
1997 Oct 30
EUROPEAN
PROJECTION
ISSUE DATE
97-06-28
10
Philips Semiconductors
Product specification
UHF power transistor
BLV946
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.
1997 Oct 30
11
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© Philips Electronics N.V. 1997
SCA55
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Printed in The Netherlands
127067/00/03/pp12
Date of release: 1997 Oct 30
Document order number:
9397 750 02986