TNY263_04 POWERINT [Power Integrations, Inc.], TNY263_04 Datasheet - Page 17

• Manufacturer Part Number: TNY263_04
• Description: Enhanced, Energy Efficient, Low Power Off-line Switcher
• Manufacturer: POWERINT [Power Integrations, Inc.]

Figure 18. TinySwitch-II General Test Circuit.
Figure 19. TinySwitch-II Duty Cycle Measurement.
VOLTAGE
DRAIN
0 V
HV
NOTE: This test circuit is not applicable for current limit or output characteristic measurements.
90%
t 1
10%
S
D EN/UV
S
BP
S
S
t 2
Figure 21. Current Limit Envelope.
D =
1.3
1.2
1.1
1.0
0.9
0.8
0.8
0.7
0.6
0.5
0.4
0.3
0.2
0.1
0
t 1
t 2
0
PI-2048-050798
0.1 µF
90%
1
t LEB (Blanking Time)
2 MΩ
I LIMIT(MIN) @ 100 C
I INIT(MIN)
2
3
Time ( s)
150 V
Figure 20. TinySwitch-II Output Enable Timing.
4
S1
(internal signal)
DC
EN/UV
470 Ω
V
5 W
DRAIN
5
t
P
MAX
=
f
OSC
6
1
10 V
470 Ω
7
8
S2
t P
t EN/UV
50 V
TNY263-268
PI-2686-101700
PI-2364-012699
4/04
E
17