TOP101AI datasheet(15/20 Pages) POWERINT

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TOP100-4

1.1

1.0

0.9

-50 -25

75 100 125 150

Junction Temperature (

°C)

BREAKDOWN vs. TEMPERATURE

1.2

1.0

0.8

0.6

0.4

0.2

-50 -25

75 100 125 150

Junction Temperature (

°C)

FREQUENCY vs. TEMPERATURE

1.2

1.0

0.8

0.6

0.4

0.2

-50 -25

75 100 125 150

Junction Temperature (

°C)

CURRENT LIMIT vs. TEMPERATURE

1.2

1.6

204060

100

Drain Voltage (V)

IC vs. DRAIN VOLTAGE

0.4

0.8

VC = 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

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

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