SI8220CD-A-ISR Silicon Laboratories Inc, SI8220CD-A-ISR Datasheet - Page 16

• Manufacturer Part Number: SI8220CD-A-ISR
• Description: IC ISODRIVER 2.5A OPTO IN 16SOIC
• Manufacturer: Silicon Laboratories Inc

Specifications of SI8220CD-A-ISR

• Configuration: Isolated
• Input Type: Opto
• Delay Time: 50ns
• Current - Peak: 2.5A
• Number Of Configurations: 1
• Number Of Outputs: 2
• Voltage - Supply: 6.5 V ~ 24 V
• Operating Temperature: -40°C ~ 125°C
• Mounting Type: Surface Mount
• Package / Case: 16-SOIC (0.300", 7.5mm Width)
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• High Side Voltage - Max (bootstrap): -

Si8220/21
A graph of Equation 3 is shown in Figure 12. Each point along the load line in this graph represents the package
dissipation-limited value of C
6.4. Input Circuit Design
Opto driver manufacturers typically recommend the circuits shown in Figures 13 and 14. These circuits are
specifically designed to improve opto-coupler input common-mode rejection and increase noise immunity.
16
10,000
1,000
100
C
where:
C
L max
L max
0
Figure 12. Maximum Load vs. Switching Frequency


L
Control
for the corresponding switching frequency.
Input


is the maximum load (pF) allowable at switching frequency F
=
Vdd
1.35 10
----------------------------- - 1.85
Figure 13. Opto Driver Input Circuit
500

F
–
3
Open Drain or
–
Collector
R1
Equation 3.

1,000
Frequency (KHz)
Rev. 1.0
10
–
10
4
1
2
3
N/C
N/C
ANODE
CATHODE
1,500
OPTO DRIVER
2,000
2,500