SI88240ED-IS Datasheet, PDF (17/48 Pages) Silicon Laboratories – QUAD DIGITAL ISOLATORS WITH DC-DC CONVERTER

Table 8. Thermal Characteristics
Parameter
IC Junction-to-Air Thermal Resistance
Si88x4x
Symbol
_JA
WB SOIC-20
55
Unit
°C/W
700
600
500
400
300
200
100
0
0
631
413
3.6V
5.5V
20
40
60
80
100 120 140 160
Temperature^oC
Figure 5. WB SOIC-20 Thermal Derating Curve*
*Note: Values are not final and are subject to change. Dependence of Safety Limiting Values with Case Temperature per VDE
0884-10.
Preliminary Rev. 0.6
17