SLD-3091FZ Datasheet, PDF (2/8 Pages) SIRENZA MICRODEVICES – 30 Watt Discrete LDMOS FET in Ceramic Flanged Package

Quality Specifications
Parameter
Description
ESD Rating
Human Body Model
Preliminary
SLD-3091FZ 30 Watt LDMOS FET
Rating
1B
Pin Description
Pin #
Function
1
Gate
2
Flange
Drain
Source, Gnd
Description
Transistor RF input and gate bias voltage. The gate bias voltage must be temperature compensated to maintain constant
bias current over the operating temperature range. Care must be taken to protect against video transients that exceed the
recommended maximum input power or voltage.
Transistor RF output and drain bias voltage. Typical voltage is 28V.
Exposed area on the bottom side of the package needs to be mechanically attached to the ground plane of the board for
optimum thermal and RF performance. See mounting instructions for recommendation.
Pin Diagram
ESD
Protection
Pin 1
Pin 2
Case Flange = Ground
Note 1:
Gate voltage must be applied to the device concurrently or after
application of drain voltage to prevent potentially destructive
oscillations. Bias voltages should never be applied to the tran-
sistor unless it is properly terminated on both input and output.
Note 2:
The required V_GS corresponding to a specific I_DQ will vary from
device to device due to the normal die-to-die variation in thresh-
old voltage with LDMOS transistors.
Note 3:
The threshold voltage (V_GSTH) of LDMOS transistors varies with
device temperature. External temperature compensation may
be required. See Sirenza application notes AN-067 LDMOS
Bias Temperature Compensation.
Absolute Maximum Ratings
Parameters
Value
Unit
Drain Voltage (V_DS )
Gate Voltage (V_GS)
RF Input Power
35
V
20
V
+36
dBm
Load Impedance for Continuous Operation Without
Damage
10:1
VSWR
Output Device Channel Temperature
+200
ºC
Lead Temperature During Solder Reflow
+270
ºC
Operating Temperature Range
-20 to +90
ºC
Storage Temperature Range
-40 to +100
ºC
Operation of this device beyond any one of these limits may cause perma-
nent damage. For reliable continuous operation see typical setup values
specified in the table on page one.
303 S. Technology Court
Broomfield, CO 80021
Phone: (800) SMI-MMIC
2
Caution: ESD Sensitive
Appropriate precaution in handling, packaging
and testing devices must be observed.
http://www.sirenza.com
EDS-104668 Rev C