SI88X2X Datasheet, PDF (12/45 Pages) Silicon Laboratories – Isolation of up to 5000 Vrms

Si88x2x
I_IN
+
V_IN
_
C2
10 µF
C1
T1
10 µF
D1
R4 ^DB2440100L
100
C5
100 pF
I_LOAD
C3
+
_ ^{V 10 µF OUT}
I_DDP
UTB02185S
U1
VSW
VDDB
I_DDB
I_DDA
VDDP
VDDA
VSNS
R1
49.9 k
COMP
SH
R3
R2
49.9 k 13.3 k
GNDA
GNDP
GNDB
C4
1.5 nF
Figure 2. Measurement Circuit for Converter Efficiency and Regulation for Si882xx, Si883xx
I_IN
+
V_{_IN}
I_DDP
I ^C2
10 µF ^DDA
Q1
FDT3612
T1
D1
R9
82
C7
68 pF
U2
UTB02205S
R8 ^SBRT5A50SA
27.4
C6
100 pF
I_DDB
ESW
VDDB
I_LOAD
+ C3
V_{_ 22 µF OUT}
R7 19.6 k
Q2
MMBT2222LT1
RSNS
R5
0.1
GNDP
VREG
C5
VSNS
COMP
R1
49.9 k
R3
100 k
R2
13.3 k
C8
10 µF
0.1 µF
VDDA
SS
GNDB
C4
1.5 nF
C1
R6
0.22 µF 18 k
SH_FC
GNDA
Figure 3. Measurement Circuit for Converter Efficiency and Regulation for Si884xx, Si886xx
12
Rev. 0.5