BLF245B,112 NXP Semiconductors, BLF245B,112 Datasheet - Page 6

• Manufacturer Part Number: BLF245B,112
• Description: TRANSISTOR RF DMOS SOT279A
• Manufacturer: NXP Semiconductors

Specifications of BLF245B,112

• Package / Case: SOT-279A
• Transistor Type: 2 N-Channel (Dual)
• Frequency: 175MHz
• Gain: 18dB
• Voltage - Rated: 65V
• Current Rating: 4.5A
• Current - Test: 25mA
• Voltage - Test: 28V
• Power - Output: 30W
• Minimum Operating Temperature: - 65 C
• Mounting Style: SMD/SMT
• Resistance Drain-source Rds (on): 1.5 Ohm @ 10 V
• Transistor Polarity: N-Channel
• Configuration: Dual Common Source
• Drain-source Breakdown Voltage: 65 V
• Gate-source Breakdown Voltage: +/- 20 V
• Continuous Drain Current: 4.5 A
• Power Dissipation: 75000 mW
• Maximum Operating Temperature: + 200 C
• Application: VHF
• Channel Type: N
• Channel Mode: Enhancement
• Drain Source Voltage (max): 65V
• Output Power (max): 30W
• Power Gain (typ)@vds: 18@28VdB
• Frequency (max): 175MHz
• Package Type: CDFM
• Pin Count: 5
• Forward Transconductance (typ): 0.85S
• Drain Source Resistance (max): 1500@10Vmohm
• Input Capacitance (typ)@vds: 60@28VpF
• Output Capacitance (typ)@vds: 40@28VpF
• Reverse Capacitance (typ): 4.5@28VpF
• Operating Temp Range: -65C to 200C
• Drain Efficiency (typ): 65%
• Mounting: Screw
• Mode Of Operation: CW Class-B
• Number Of Elements: 2
• Power Dissipation (max): 75000mW
• Vswr (max): 50
• Screening Level: Military
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Noise Figure: -
• Lead Free Status / Rohs Status: Lead free / RoHS Compliant
• Other names: 568-2388; 934003520112; BLF245B; BLF245B

Philips Semiconductors
APPLICATION INFORMATION FOR CLASS-B OPERATION
T
RF performance in a push-pull, common source, class-B test circuit.
Ruggedness in class-B operation
The BLF245B is capable of withstanding a load mismatch corresponding to VSWR = 50 through all phases, under the
following conditions:
V
2003 Aug 04
handbook, halfpage
CW, class-B
h
DS
VHF push-pull power MOS transistor
= 25 C; R
V
Fig.8
MODE OF OPERATION
GS
= 28 V, f = 175 MHz at rated output power.
(pF)
C rs
= 0; f = 1 MHz.
20
10
0
0
Feedback capacitance as a function of
drain-source voltage; typical values per
section.
th mb-h
10
= 0.3 K/W; unless otherwise specified.
20
(MHz)
30
175
f
V DS (V)
MGP184
40
V
(V)
28
DS
6
2
(mA)
I
DQ
25
(W)
P
30
L
typ. 18
(dB)
G
14
p
Product specification
BLF245B
typ. 65
(%)
55
D