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is removed. The voltage across the device reaches the supply

voltage, and minority carriers that remain in the device after

turn−off cause a tail current that continues to flow. This is

illustrated in Figure 10.

The switching characteristics are given in the electrical

Table 5.

Table 5. INDUCTIVE SWITCHING ELECTRICAL CHARACTERISTICS OF THE IGBT

Parameter

Test Conditions

Symbol

Min

Typ

Max

Unit

SWITCHING CHARACTERISTIC , INDUCTIVE LOAD

Turn−on delay time

78

ns

Rise time

30

Turn−off delay time

130

Fall time

120

Turn−on switching loss

0.900

mJ

Turn−off switching loss

0.300

Total switching loss

1.200

Turn−on delay time

76

ns

Rise time

33

Turn−off delay time

133

Fall time

223

Turn−on switching loss

1.10

mJ

Turn−off switching loss

0.510

Total switching loss

1.610

Figure 9. Turn−on Switching Illustration Showing the

Definitions of the Turn−on Switching Characteristics

pulse and the rising edge of the IGBT collector current. The

measurement considers the point at which both the gate

voltage and collector current reach 10% of their final

specified value.

The interval between the time the collector reaches 10%

of its specified current value and the time it reaches 90% of

its final value is defined as the rise time.

The turn−on switching losses are calculated by integrating

starting when the collector current reaches 10% of its final

value and ending when the collector−emitter voltage reaches

5% of its peak value.

pulse and the falling edge of the collector current. The

measurement is the time between the point at which the gate

voltage falls to 90% of its maximum value and the collector

current reaches 10% of its final specified value.

The fall time is defined as the time required for the

collector current to drop from 90% to 10% of its initial value.

The turn−off switching energy losses are calculated to

include the overlap of the rising collector−emitter voltage