TOP100-4 Ver la hoja de datos (PDF) - Power Integrations, Inc
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TOP100-4 Datasheet PDF : 20 Pages
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TOP100-4
BENCH TEST PRECAUTIONS FOR EVALUATION OF ELECTRICAL CHARACTERISTICS
The following precautions should be
followed when testing TOPSwitch by
itself outside of a power supply. The
schematic shown in Figure 14 is
suggested for laboratory testing of
TOPSwitch.
When the DRAIN supply is turned on,
the part will be in the auto-restart mode.
The control pin voltage will be oscillating
at a low frequency from 4.7 to 5.7 V and
the DRAIN is turned on every eighth
cycle of the CONTROL pin oscillation.
If the CONTROL pin power supply is
turned on while in this auto-restart mode,
there is only a 12.5% chance that the
control pin oscillation will be in the
correct state (DRAIN active state) so
that the continuous DRAIN voltage
waveform may be observed. It is
recommended that the V power supply
C
be turned on first and the DRAIN power
supply second if continuous drain voltage
waveforms are to be observed. The
12.5% chance of being in the correct
state is due to the 8:1 counter.
Typical Performance Characteristics
BREAKDOWN vs. TEMPERATURE
1.1
1.0
0.9
-50 -25 0 25 50 75 100 125 150
Junction Temperature (°C)
CURRENT LIMIT vs. TEMPERATURE
1.2
1.0
0.8
0.6
0.4
0.2
0
-50 -25 0 25 50 75 100 125 150
Junction Temperature (°C)
FREQUENCY vs. TEMPERATURE
1.2
1.0
0.8
0.6
0.4
0.2
0
-50 -25 0 25 50 75 100 125 150
Junction Temperature (°C)
IC vs. DRAIN VOLTAGE
2
VC = 5 V
1.6
1.2
0.8
0.4
0
0
20 40 60 80 100
Drain Voltage (V)
15 E
7/96
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