Si8410/20/21 (5 kV)
Si8422/23 (2.5 & 5 kV)
28 Rev. 1.2
5. Pin Descriptions (Narrow-Body SOIC)
Name SOIC-8 Pin#
Si842x
Type Description
V
DD1
1 Supply Side 1 power supply.
GND1 4 Ground Side 1 ground.
A1 2 Digital I/O Side 1 digital input or output.
A2 3 Digital I/O Side 1 digital input or output.
B1 7 Digital I/O Side 2 digital input or output.
B2 6 Digital I/O Side 2 digital input or output.
V
DD2
8 Supply Side 2 power supply.
GND2 5 Ground Side 2 ground.
I
s
o
l
a
t
i
o
n
VDD1
VDD2
A1
B1
A2
B2
RF
XMITR
RF
RCVR
GND1
GND2
Si8422 NB SOIC-8
RF
RCVR
RF
XMITR
RF
RCVR
RF
XMITR
I
s
o
l
a
t
i
o
n
VDD1
VDD2
A1
B1
RF
XMITR
RF
RCVR
A2
B2
RF
XMITR
RF
RCVR
GND1
GND2
Si8423 NB SOIC-8
Rev. 1.2 29
Si8410/20/21 (5 kV)
Si8422/23 (2.5 & 5 kV)
6. Ordering Guide
Table 13. Ordering Guide
1
Ordering Part
Number (OPN)
Number of
Inputs
VDD1 Side
Number of
Inputs
VDD2 Side
Maximum
Data Rate
(Mbps)
Default
Output
State
Isolation
Rating
Temp
Range
Package
Type
Si8422AB-B-IS 1 1 1 High
2.5 kVrms –40 to 125 °C NB SOIC-8
Si8422BB-B-IS 1 1 150 High
Si8423AB-B-IS 2 0 1 High
Si8423BB-B-IS 2 0 150 High
Si8410AD-A-IS
2
1 0 1 Low
5.0 kVrms –40 to 125 °C WB SOIC-16
Si8410BD-A-IS
2
1 0 150 Low
Si8420AD-A-IS
2
2 0 1 Low
Si8420BD-A-IS
2
2 0 150 Low
Si8421AD-B-IS
2
1 1 1 Low
Si8421BD-B-IS
2
1 1 150 Low
Si8422AD-B-IS 1 1 1 High
Si8422BD-B-IS 1 1 150 High
Si8423AD-B-IS 2 0 1 High
Si8423BD-B-IS 2 0 150 High
Notes:
1. All packages are RoHS-compliant with peak reflow temperatures of 260 °C according to the JEDEC industry standard
classifications and peak solder temperatures.
Moisture sensitivity level is MSL2A for wide-body SOIC-16 packages.
Moisture sensitivity level is MSL2A for narrow-body SOIC-8 packages.
2. Refer to Si8410/20/21 data sheet for information regarding 2.5 kV rated versions of these products.
Si8410/20/21 (5 kV)
Si8422/23 (2.5 & 5 kV)
30 Rev. 1.2
7. Package Outline: 16-Pin Wide Body SOIC
Figure 17 illustrates the package details for the Si84xx Digital Isolator. Table 14 lists the values for the dimensions
shown in the illustration.
Figure 17. 16-Pin Wide Body SOIC
Table 14. Package Diagram Dimensions
Symbol
Millimeters
Min Max
A 2.65
A1 0.1 0.3
D 10.3 BSC
E 10.3 BSC
E1
7.5 BSC
b 0.31 0.51
c 0.20 0.33
e 1.27 BSC
h 0.25 0.75
L 0.4 1.27

SI8421BD-D-ISR

Mfr. #:
Manufacturer:
Silicon Labs
Description:
Digital Isolators 5 kV 1 forward & 1 reverse 2-channel isolator
Lifecycle:
New from this manufacturer.
Delivery:
DHL FedEx Ups TNT EMS
Payment:
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