
5.2–309
MRF21085 MRF21085S MRF21085SR3 MRF21085LS MRF21085LSR3
MOTOROLA WIRELESS
RF PRODUCT DEVICE DATA
The RF MOSFET Line
RF Power Field Effect Transistors
N–Channel Enhancement–Mode Lateral MOSFETs
Designed for W–CDMA base station applications with frequencies from 2110
to 2170 MHz. Suitable for TDMA, CDMA and multicarrier amplifier applica-
tions. To be used in Class AB for PCN–PCS/cellular radio and WLL
applications.
Typical 2–carrier W–CDMA Performance for VDD = 28 Volts,
IDQ = 1000 mA, f1 = 2135 MHz, f2 = 2145 MHz, Channel Bandwidth = 3.84
MHz, Adjacent Channels Measured over 3.84 MHz BW @ f1 –5 MHz and
f2 +5 MHz, Distortion Products Measured over a 3.84 MHz BW
@ f1 –10 MHz and f2 +10 MHz, Peak/Avg. = 8.3 dB @ 0.01% Probability
on CCDF.
Output Power — 19 Watts Avg.
Power Gain — 13.6 dB
Efficiency — 23%
IM3 — –37.5 dBc
ACPR — –41 dBc
Internally Matched, Controlled Q, for Ease of Use
High Gain, High Efficiency and High Linearity
Integrated ESD Protection
Designed for Maximum Gain and Insertion Phase Flatness
Capable of Handling 5:1 VSWR, @ 28 Vdc, 2170 MHz, 90 Watts CW
Output Power
Excellent Thermal Stability
Characterized with Series Equivalent Large–Signal Impedance Parameters
Available in Tape and Reel. R3 Suffix = 250 Units per 56 mm, 13 inch Reel.
Available with Low Gold Plating Thickness on Leads. L Suffix Indicates
40
″ Nominal.
MAXIMUM RATINGS
Rating
Symbol
Value
Unit
Drain–Source Voltage
VDSS
65
Vdc
Gate–Source Voltage
VGS
+15, –0.5
Vdc
Total Device Dissipation @ TC = 25°C
Derate above 25
°C
PD
224
1.28
Watts
W/
°C
Storage Temperature Range
Tstg
–65 to +200
°C
Operating Junction Temperature
TJ
200
°C
ESD PROTECTION CHARACTERISTICS
Test Conditions
Class
Human Body Model
1 (Minimum)
Machine Model
M3 (Minimum)
THERMAL CHARACTERISTICS
Characteristic
Symbol
Max
Unit
Thermal Resistance, Junction to Case
RθJC
0.78
°C/W
NOTE – CAUTION – MOS devices are susceptible to damage from electrostatic charge. Reasonable precautions in handling and
packaging MOS devices should be observed.
MOTOROLA
SEMICONDUCTOR TECHNICAL DATA
MRF21085
MRF21085S
MRF21085SR3
MRF21085LS
MRF21085LSR3
2170 MHz, 90 W, 28 V
LATERAL N–CHANNEL
RF POWER MOSFETs
CASE 465–06, STYLE 1
(NI–780)
(MRF21085)
CASE 465A–06, STYLE 1
(NI–780S)
(MRF21085S, MRF21085LS)
REV 3