AN1224 STMicroelectronics, AN1224 Datasheet - Page 5

• Manufacturer Part Number: AN1224
• Description: LDMOS RF POWER TRANSISTORS FOR FM BROADBOARD APPLICATION
• Manufacturer: STMicroelectronics

Figure 4: Drain Current vs. Gate-Source Voltage
Figure 5: Gate-Source Voltage versus Case Temperature
Figure 6: Output Power and Effeciency versus Input Power
60
48
36
24
12
1.04
1.02
0.98
0.96
0.1
3.5
2.5
1.5
0.5
1
-25
4
3
2
0
1
2.5
Output Power & Efficiency vs Input Power
Gate-Source Voltage vs Case Temperature
0.2
Drain Current vs. Gate-Source Voltage
3
VGS, GATE-SOURCE VOLTAGE (VOLTS)
0
Tcase, CASE TEMPERATURE (°C)
Input Power (W)
0.3
3.5
25
0.4
4
Freq=95 MHz
Idq=250 mA
Vdd=28V
Pout
0.5
Eff
4.5
50
Id=250mA
AN1224 - APPLICATION NOTE
0.6
Id=3A
Id=2A
Id=1.5A
Id=1A
5
70
60
50
40
75
5/7