TNY375-380
200
100
V
V
DC-INPUT
EN
0
CLOCK
10
D
V
MAX
5
0
BYPASS
400
200
0
I
DRAIN
V
DRAIN
1
2
0
Time (ms)
V
Figure 11. Power-up Without Optional External UV Resistor Connected
to EN/UV Pin.
DRAIN
PI-4541-042507
200
Figure 9. Operation at Very Light Load (fOSC 132 kHz).
V
100
0
DC-INPUT
200
V
100
DC-INPUT
400
300
0
10
V
200
100
0
DRAIN
V
5
0
BYPASS
.5
1
400
200
0
0
Time (s)
V
Figure 12. Normal Power-down Timing (Without UV Resistor).
DRAIN
1
2
0
200
Time (ms)
Figure 10. Power-up With Optional External UV Resistor (4 MW) Connected
V
100
0
DC-INPUT
to EN/UV Pin.
400
300
V
200
100
0
DRAIN
2.5
5
0
Time (s)
Figure 13. Slow Power-down Timing With Optional External (4 MW) UV Resistor
Connected to EN/UV Pin.
6
Rev. C 09/12
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POWERINT [ Power Integrations ]
