For more information, please refer to the following application notes related to the power losses :

•

AN604: Calculation of conduction losses in a power rectifier

•

AN4021: Calculation of reverse losses on a power diode

Figure 1. Current and voltage waveforms for avalanche energy test across D.U.T (device under test)

VCL_DUT

IAS

i(t), v(t)

t

tp

IDUT

IL

Figure 2. Unclamped Inductive Switching Test circuit

EAS=12×L×IAS²×   VCLDUT

VCLDUT−VDD ≅12×L×IAS²

tp=   L×IAS

VCLDUT−VDD

STPST2H100

Characteristics

DS14190 - Rev 1

page 3/14