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Si8642BB-B-IS1 Fiches technique(PDF) 9 Page - STMicroelectronics

No de pièce Si8642BB-B-IS1
Description  LOW-POWER QUAD-CHANNEL DIGITAL ISOLATOR
Download  44 Pages
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Fabricant  STMICROELECTRONICS [STMicroelectronics]
Site Internet  http://www.st.com
Logo STMICROELECTRONICS - STMicroelectronics

Si8642BB-B-IS1 Fiches technique(HTML) 9 Page - STMicroelectronics

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Rev. 1.6
9
Si8640/41/42/45
Table 3. 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
1.95
2.24
2.375
V
VDD Undervoltage Threshold
VDDUV–
VDD1, VDD2 falling
1.88
2.16
2.325
V
VDD Undervoltage
Hysteresis
VDDHYS
50
70
95
mV
Positive-Going Input Thresh-
old
VT+
All inputs rising
1.4
1.67
1.9
V
Negative-Going Input Thresh-
old
VT–
All inputs falling
1.0
1.23
1.4
V
Input Hysteresis
VHYS
0.38
0.44
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 Impedance1
ZO
—50
Enable Input High Current
IENH
VENx =VIH
—2.0
µA
Enable Input Low Current
IENL
VENx =VIL
—2.0
µA
DC Supply Current (All inputs 0 V or at supply)
Si8640Bx, Ex, Si8645Bx
VDD1
VDD2
VDD1
VDD2
VI = 0(Bx), 1(Ex)
VI = 0(Bx), 1(Ex)
VI = 1(Bx), 0(Ex)
VI = 1(Bx), 0(Ex)
1.0
2.4
6.1
2.5
1.6
3.8
9.2
4.0
mA
Si8641Bx, Ex
VDD1
VDD2
VDD1
VDD2
VI = 0(Bx), 1(Ex)
VI = 0(Bx), 1(Ex)
VI = 1(Bx), 0(Ex)
VI = 1(Bx), 0(Ex)
1.4
2.3
5.2
3.6
2.2
3.7
7.8
5.4
mA
Si8642Bx, Ex
VDD1
VDD2
VDD1
VDD2
VI = 0(Bx), 1(Ex)
VI = 0(Bx), 1(Ex)
VI = 1(Bx), 0(Ex)
VI = 1(Bx), 0(Ex)
1.8
1.8
4.4
4.4
2.9
2.9
6.6
6.6
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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