
Si8220/21
8. Pin Descriptions (Wide-Body SOIC)
Si8220
CATHODE
NC
NC
ANODE
NC
NC
CATHODE
NC
1
2
3
4
5
6
7
8
16
15
14
13
12
11
10
9
V SS
V DD
NC
V O
NC
NC
NC
V SS
Top View
Table 13. Pin Descriptions (Wide-Body SOIC)
Pin
Name
Description
1,7
CATHODE Cathode of LED emulator. V O follows the signal applied to ANODE with respect to this
input.
2,3,5,6,8,
10,11,12,
14
4
9,16
13
15
NC*
ANODE
V SS
V O
V DD
No connect.
Anode of LED emulator. V O follows the signal applied to this input with respect to the
CATHODE input.
External MOSFET source connection and ground reference for V DD . This terminal is
typically connected to ground but may be tied to a negative or positive voltage.
Output signal.
Output-side power supply input referenced to V SS (24 V max).
*Note: No Connect. These pins are not internally connected.
Rev. 1.4
21