SI8233 Datasheet, PDF (9/57 Pages) Silicon Laboratories – 0.5 AND 4.0 AMP ISODRIVERS

Si823x
2.1. Test Circuits
Figures 4, 5, and 6 depict sink current, source current, and common-mode transient immunity test circuits,
respectively.
INPUT
VDDI
VDD
IN _Si823x OUT
VSS
VDDA = VDDB = 15 V
SCHOTTKY
1 µF
10
100 µF
8V
+
_
Measure
50 ns
VDDI
200 ns
GND
INPUT WAVEFORM
1 µF
CER
10 µF
EL
RSNS
0.1
Figure 4. IOL Sink Current Test Circuit
INPUT
VDDI
VDD
IN _Si823x OUT
VSS
VDDA = VDDB = 15 V
SCHOTTKY
1 µF
10
100 µF ^{5.5 V}
+
_
Measure
50 ns
VDDI
200 ns
GND
INPUT WAVEFORM
1 µF
CER
10 µF
EL
RSNS
0.1
Figure 5. IOH Source Current Test Circuit
Rev. 1.7
9