SI8421AD Datasheet, PDF (19/37 Pages) List of Unclassifed Manufacturers – LOW-POWER, SINGLE AND DUAL-CHANNEL DIGITAL ISOLATORS

Si8410/20/21 (5 kV)
Si8422/23 (2.5 & 5 kV)
Table 11. Thermal Characteristics
Parameter
IC Junction-to-Air Thermal Resistance
Symbol
_JA
WB SOIC-16
100
NB SOIC-8
140
Unit
ºC/W
500
460
375 ₃₆₀
250
220
125
V_DD1, V_DD2 = 2.70 V
V_DD1, V_DD2 = 3.3 V
V_DD1, V_DD2 = 5.5 V
0
0
50
100
150
200
Case Temperature (ºC)
Figure 2. (WB SOIC-16) Thermal Derating Curve, Dependence of Safety Limiting Values
with Case Temperature per DIN EN 60747-5-5
400
320
300 ₂₇₀
200
160
100
V_DD1, V_DD2 = 2.70 V
V_DD1, V_DD2 = 3.3 V
V_DD1, V_DD2 = 5.5 V
0
0
50
100
150
200
Case Temperature (ºC)
Figure 3. (NB SOIC-8) Thermal Derating Curve, Dependence of Safety Limiting Values
with Case Temperature per DIN EN 60747-5-5
Rev. 1.3
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