TNY253/254/255
DC
MAX
t
2
t
P
t
1
HV
90%
90%
ENABLE
t
t
t
DRAIN
VOLTAGE
EN
1
2
D =
1
tP
=
for TNY253/254
for TNY255
2fOSC
10%
0 V
1
tP
=
fOSC
PI-2194-062398
PI-2048-033001
Figure 15. TinySwitch Duty Cycle Measurement.
Figure 16. TinySwitch Output Enable Timing.
t
(Blanking Time)
LEB
1.3
1.2
1.1
1.0
0.9
0.8
0.7
0.6
0.5
0.4
0.3
0.2
0.1
I
INIT(MIN)
I
I
@ 25 °C
@ 25 °C
LIMIT(MAX)
LIMIT(MIN)
0
0
1
2
3
4
5
6
7
8
Time ( s)
Figure 17. Current Limit Envelope.
Typical Performance Characteristics
BREAKDOWN vs. TEMPERATURE
FREQUENCY vs. TEMPERATURE
1.1
1.2
1.0
0.8
0.6
0.4
0.2
1.0
0.9
0
-50 -25
0
25 50 75 100 125 150
-50 -25
0
25
50 75 100 125
Junction Temperature (°C)
Junction Temperature (°C)
C
13
7/01
POWERINT [ Power Integrations ]
