START499ETR Datasheet, PDF (8/14 Pages) STMicroelectronics – Linear and non linear operation

Package equivalent circuit
5
Package equivalent circuit
Figure 2. Package equivalent circuit
START499ETR
Note:
5.1
In order to avoid high complexity of the package equivalent circuit, the two emitter leads of
SOT-343 package are combined in one electrical connection.
For more accuracy simulation in saturation region:
Adding the 5 spice parameters showed in Table 8 and using ST spice library (available on
request) you can achieve a more accuracy simulation in the saturation region. ST spice
library is compatible with following simulators: ELDO MENTOR (any version), SPECTRE
CADENCE (any version), ADS (version 2001 only).
Table 8. Spice parameters extracted in saturation region
RW
Vjj
ENP
VRP
1.034 0.755 2.235
{7.2*((TEMPER+273.15)/300.15)^(0.125)}
RP
0.33E-6
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