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SI8422 Datenblatt(PDF) 8 Page - Silicon Laboratories

Teilenummer SI8422
Bauteilbeschribung  LOW-POWER, SINGLE AND DUAL-CHANNEL DIGITAL ISOLATORS
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Hersteller  SILABS [Silicon Laboratories]
Direct Link  http://www.silabs.com
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SI8422 Datenblatt(HTML) 8 Page - Silicon Laboratories

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Si8410/20/21 (5 kV)
Si8422/23 (2.5 & 5 kV)
8
Rev. 1.3
Table 2. Electrical Characteristics
(VDD1 = 3.3 V ±10%, VDD2 = 3.3 V ±10%, TA = –40 to 125 °C)
Parameter
Symbol
Test Condition
Min
Typ
Max
Unit
VDD Undervoltage Threshold
VDDUV+ VDD1, VDD2 rising
2.15
2.3
2.5
V
VDD Negative-Going Lockout
Hysteresis
VDDHYS
45
75
95
mV
Positive-Going Input Threshold
VT+
All inputs rising
1.6
1.9
V
Negative-Going Input Threshold
VT–
All inputs falling
1.1
1.4
V
Input Hysteresis
VHYS
0.40
0.45
0.50
V
High Level Input Voltage
VIH
2.0
V
Low Level Input Voltage
VIL
——
0.8
V
High Level Output Voltage
VOH
loh = –4 mA
VDD1,VDD2 –0.4
3.1
V
Low Level Output Voltage
VOL
lol = 4 mA
0.2
0.4
V
Input Leakage Current
IL
——
±10
µA
Output Impedance (Si8410/20)1
ZO
—50
DC Supply Current (All inputs 0 V or at supply)
Si8410Ax, Bx
VDD1
VDD2
VDD1
VDD2
All inputs 0 DC
All inputs 0 DC
All inputs 1 DC
All inputs 1 DC
1.0
1.0
3.0
1.0
1.5
1.5
4.5
1.5
mA
Si8420Ax, Bx
VDD1
VDD2
VDD1
VDD2
All inputs 0 DC
All inputs 0 DC
All inputs 1 DC
All inputs 1 DC
1.3
1.7
5.8
1.7
2.0
2.6
8.7
2.6
mA
Si8421Ax, Bx
VDD1
VDD2
VDD1
VDD2
All inputs 0 DC
All inputs 0 DC
All inputs 1 DC
All inputs 1 DC
1.7
1.7
3.7
3.7
2.6
2.6
5.6
5.6
mA
Si8422Ax, Bx
VDD1
VDD2
VDD1
VDD2
All inputs 0 DC
All inputs 0 DC
All inputs 1 DC
All inputs 1 DC
3.7
3.7
1.7
1.7
5.6
5.6
2.6
2.6
mA
Si8423Ax, Bx
VDD1
VDD2
VDD1
VDD2
All inputs 0 DC
All inputs 0 DC
All inputs 1 DC
All inputs 1 DC
5.4
1.7
1.3
1.7
8.1
2.6
2.0
2.6
mA
Notes:
1. The nominal output impedance of an isolator driver channel is approximately 50
, ±40%, which is a combination of the
value of the on-chip series termination resistor and channel resistance of the output driver FET. When driving loads
where transmission line effects will be a factor, output pins should be appropriately terminated with controlled
impedance PCB traces.
2. tPSK(P-P) is the magnitude of the difference in propagation delay times measured between different units operating at
the same supply voltages, load, and ambient temperature.
3. Start-up time is the time period from the application of power to valid data at the output.


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