tny375 Power Integrations, Inc., tny375 Datasheet - Page 6

• Manufacturer Part Number: tny375
• Description: Energy-efficient, Off-line Switcher With Enhanced Peak Power Performance
• Manufacturer: Power Integrations, Inc.

Rev. B 11/07
Figure 9.
200
100
Figure 10. Power-up With Optional External UV Resistor (4 MΩ) Connected
400
200
10
0
5
0
0
6
V
0
I
CLOCK
D
DRAIN
DRAIN
MAX
V
V
EN
Operation at Very Light Load (f
to EN/UV Pin.
V
V
DC-INPUT
DRAIN
BYPASS
TNY375-380
Time (ms)
1
OSC
132 kHz).
PI-4541-042507
2
Figure 11. Power-up Without Optional External UV Resistor Connected
200
100
Figure 12. Normal Power-down Timing (Without UV Resistor).
200
100
200
100
400
300
200
100
400
300
200
100
400
200
10
0
0
0
0
0
5
0
0
Figure 13. Slow Power-down Timing With Optional External (4 MΩ) UV Resistor
0
0
0
to EN/UV Pin.
V
V
V
DC-INPUT
DRAIN
BYPASS
Connected to EN/UV Pin.
Time (ms)
Time (s)
Time (s)
2.5
.5
1
V
V
V
DC-INPUT
DC-INPUT
V
DRAIN
DRAIN
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1
5
2