TOP200-4/14
D
7/96
14
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)
CURRENT LIMIT vs. TEMPERATURE
PI-1125-041494
Current Limit
(Normalized to 25°C)
2
1.2
1.6
0
0 20406080100
Drain Voltage (V)
CONTROL Pin
Charging Current (mA)
I
C
vs. DRAIN VOLTAGE
PI-1145-103194
0.4
0.8
V
C
= 5 V
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
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.
BENCH TEST PRECAUTIONS FOR EVALUATION OF ELECTRICAL CHARACTERISTICS
1.1
1.0
0.9
-50 -25 0 25 50 75 100 125 150
Junction Temperature (°C)
Breakdown Voltage (V)
(Normalized to 25°C)
BREAKDOWN vs. TEMPERATURE
PI-176B-051391
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
PI-1123A-060794
Output Frequency
(Normalized to 25°C)
that the continuous DRAIN voltage
waveform may be observed. It is
recommended that the V
C
power supply 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
