BLF1046 datasheet(3/8 Pages) PHILIPS

3 / 8 page

2000 Feb 02

Philips Semiconductors

Preliminary speciﬁcation

UHF power LDMOS transistor

BLF1046

LIMITING VALUES

In accordance with the Absolute Maximum Rating System (IEC 134).

THERMAL CHARACTERISTICS

Note

1. Determined under specified RF operating conditions, based on maximum peak junction temperature.

CHARACTERISTICS

Tj =25 °C unless otherwise speciﬁed.

APPLICATION INFORMATION

RF performance in a common source class-AB circuit. Th =25 °C; Rth mb-h = 0.6 K/W, unless otherwise speciﬁed.

Ruggedness in class-AB operation

The BLF1046 is capable of withstanding a load mismatch corresponding to VSWR = 10 : 1 through all phases under the

following conditions: VDS = 26 V; f = 960 MHz at rated load power.

SYMBOL

PARAMETER

MIN.

MAX.

UNIT

VDS

drain-source voltage

−

VGS

gate-source voltage

−±20

drain current (DC)

−

4.5

Tstg

storage temperature

−65

+150

°C

junction temperature

−

200

°C

SYMBOL

PARAMETER

CONDITIONS

VALUE

UNIT

Rth j-h

thermal resistance from junction to heatsink

Th =25 °C, Pdis =97W;

note 1

1.2

K/W

Rth mb-h

thermal resistance from mounting base to heatsink

0.6

K/W

SYMBOL

PARAMETER

CONDITIONS

MIN.

TYP.

MAX.

UNIT

V(BR)DSS

drain-source breakdown voltage

VGS = 0; ID = 0.7 mA

−−

VGSth

gate-source threshold voltage

VDS = 10 V; ID =70mA

−

IDSS

drain-source leakage current

VGS = 0; VDS =26V

−−

µA

IDSX

drain cut-off current

VGS =VGSth +9V; VDS = 10 V

12.5

−−

IGSS

gate leakage current

VGS = ±20 V; VDS =0

−−

125

gfs

forward transconductance

VDS = 10 V; ID = 3.5 A

−

RDSon

drain-source on-state resistance

VGS =VGSth +9V; ID = 3.5 A

−

300

−

Ω

Cis

input capacitance

VGS = 0; VDS = 26 V; f = 1 MHz

−

Cos

output capacitance

VGS = 0; VDS = 26 V; f = 1 MHz

−

Crs

feedback capacitance

VGS = 0; VDS = 26 V; f = 1 MHz

−

1.5

−

MODE OF OPERATION

(MHz)

VDS

(V)

(W)

(dB)

ηD

(%)

dim

(dBc)

CW, class-AB (2-tone)

f1 = 960; f2 = 960.1

45 (PEP)

>14

>35

≤−28

CW, class-AB (1-tone)

960

>14

>45

−

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