Datasheet

Rev. J 06/13
13
LNK302/304-306
www.powerint.com
Typical Performance Characteristics
200
300
350
400
250
0
0 42 86 10 12 14 16 18 20
DRAIN Voltage (V)
DRAIN Pin Current (mA)
PI-3661-060613
50
150
100
Scaling Factors:
LNK302 0.5
LNK304 1.0
LNK305 2.0
LNK306 3.4
25 °C
100 °C
Figure 14. BYPASS Pin Start-up Waveform.
1.1
1.0
0.9
-50 -25 0 25 50 75 100 125 150
Junction Temperature (°C)
Breakdown Voltage
(Normalized to 25 °C)
PI-2213-012301
6
5
4
3
2
1
0
0 0.2 0.4 0.6 0.8 1.0
Time (ms)
PI-2240-012301
BYPASS Pin Voltage (V)
7
Figure 10. Breakdown vs. Temperature.
Figure 12. Current Limit vs. Temperature at Normalized di/dt.
Figure 13. Current Limit vs. di/dt.
Figure 15. Output Characteristics.
1.2
1.0
0.8
0.6
0.4
0.2
0
-50 -25 0 25 50 75 100 125
Junction Temperature (°C)
PI-2680-012301
Output Frequency
(Normalized to 25 °C)
Figure 11. Frequency vs. Temperature.
Normalized di/dt
PI-3710-071204
Normalized Current Limit
1.0
1.2
1.4
0.8
0.6
0.4
0.2
0
123456
LNK302
LNK304
LNK305
LNK306
Normalized
di/dt = 1
55 mA/µs
65 mA/µs
75 mA/µs
95 mA/µs
Normalized
Current
Limit = 1
136 mA
257 mA
375 mA
482 mA
Temperature (°C)
PI-3709-111203
Current Limit
(Normalized to 25 °C)
1.0
1.2
1.4
0.8
0.6
0.4
0.2
0
-50 0 50 100 150
di/dt = 1
di/dt = 6
Normalized di/dt