lnk354 Power Integrations, Inc., lnk354 Datasheet - Page 11

• Manufacturer Part Number: lnk354
• Description: Enhanced, Energy Ef?cient, Low Power Off-line Switcher Ic
• Manufacturer: Power Integrations, Inc.

Typical Performance Characteristics
Figure 10. Breakdown vs. Temperature.
Figure 12. Current Limit vs. Temperature at
Figure 14. BYPASS Pin Start-up Waveform.
1.1
1.0
0.9
1.4
1.2
1.0
0.8
0.6
0.4
0.2
7
6
5
4
3
2
1
0
0
-50
-50 -25
0
Normalized di/dt.
Junction Temperature (°C)
0.2
0
Temperature (°C)
0
25
0.4
Time (ms)
50
50
Normalized di/dt
0.6
75 100 125 150
di/dt = 1
di/dt = 6
100
0.8
150
1.0
Figure 13. Current Limit vs. di/dt.
Figure 15. Output Characteristics.
Figure 11. Frequency vs. Temperature.
400
350
300
250
200
150
100
1.2
1.0
0.8
0.6
0.4
0.2
1.4
1.2
1.0
0.8
0.6
0.4
0.2
0
50
0
0
-50
0
1
2
-25
Junction Temperature (°C)
LNK353
LNK354
LNK353
LNK354
4
DRAIN Voltage (V)
2
Normalized di/dt
6
0
25 °C
TBD
Normalized
di/dt = 1
90 mA/µs
115 mA/µs
8
25
10 12 14 16 18 20
3
50
Scaling Factors:
LNK353
LNK354
100 °C
Normalized
Current
Limit = 1
185 mA
250 mA
75
LNK353/354
4
0.7
1.0
100 125
5
2/05
F
11