tny375 Power Integrations, Inc., tny375 Datasheet - Page 17

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

Figure 17. General Test Circuit.
Figure 18. Duty Cycle Measurement.
www.powerint.com
NOTE: This test circuit is not applicable for current limit or output characteristic measurements.
S
S
S
S
EN/UV
BP/M
D
Figure 20. Current Limit Envelope at f
0.8
0.1 μF
2 MΩ
150 V
Figure 19. Output Enable Timing.
S1
(internal signal)
OSC
DC
EN/UV
470 Ω
V
5 W
DRAIN
= 132 kHz.
t
P
MAX
=
f
OSC
1
10 V
470 Ω
S2
t P
t EN/UV
TNY375-380
50 V
PI-4079-080905
PI-2364-012699
Rev. B 11/07
17