SI823X Datasheet, PDF (14/52 Pages) Silicon Laboratories – 0.5 AND 4.0 AMP ISODRIVERS (2.5 AND 5 KVRMS)

Si823x
Table 8. Thermal Characteristics
Parameter
IC Junction-to-Air Thermal Resis-
tance
Symbol
WB
SOIC-16
NB
SOIC-16
_JA
100
105
14 LD
LGA
105
14 LD
LGA w/
Pad
50
Unit
°C/W
60
50
40
VDDI = 5.5 V
VDDA, VDDB = 24 V
30
20
10
0
0
50
100
150
200
Case Temperature (ºC)
Figure 6. WB SOIC-16, NB SOIC-16, 14 LD LGA Thermal Derating Curve, Dependence of Safety
Limiting Values with Case Temperature per DIN EN 60747-5-2
120
100
VDDI = 5.5 V
VDDA, VDDB = 24 V
80
60
40
20
0
0
50
100
150
200
Case Temperature (ºC)
Figure 7. 14 LD LGA with Pad Thermal Derating Curve, Dependence of Safety Limiting Values
with Case Temperature per DIN EN 60747-5-2
14
Rev. 0.3