SI8641BD-B-IS Datasheet, PDF (10/44 Pages) STMicroelectronics – LOW-POWER QUAD-CHANNEL DIGITAL ISOLATOR

Si8640/41/42/45
Table 3. Electrical Characteristics (Continued)
(V_DD1 = 3.3 V ±10%, V_DD2 = 3.3 V ±10%, T_A = –40 to 125 °C)
Parameter
Symbol Test Condition
Min
Typ
Max Unit
1 Mbps Supply Current (All inputs = 500 kHz square wave, CI = 15 pF on all outputs)
Si8640Bx, Ex, Si8645Bx
V_DD1
V_DD2
—
3.6
5.0
mA
—
2.9
4.0
Si8641Bx, Ex
V_DD1
V_DD2
—
3.4
4.8
mA
—
3.3
4.6
Si8642Bx, Ex
V_DD1
V_DD2
—
3.3
4.6
mA
—
3.3
4.6
10 Mbps Supply Current (All inputs = 5 MHz square wave, CI = 15 pF on all outputs)
Si8640Bx, Ex, Si8645Bx
V_DD1
V_DD2
—
3.6
5.0
mA
—
3.4
4.7
Si8641Bx, Ex
V_DD1
V_DD2
—
3.5
4.9
mA
—
3.6
5.1
Si8642Bx, Ex
V_DD1
V_DD2
—
3.6
5.0
mA
—
3.6
5.0
100 Mbps Supply Current (All inputs = 50 MHz square wave, CI = 15 pF on all outputs)
Si8640Bx, Ex, Si8645Bx
V_DD1
V_DD2
—
3.6
5.0
mA
—
12.3
15.9
Si8641Bx, Ex
V_DD1
V_DD2
—
5.9
7.9
mA
—
10.3
13.4
Si8642Bx, Ex
V_DD1
V_DD2
—
8.2
10.7 mA
—
8.2
10.7
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. t_PSK(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.
10
Rev. 1.6