SI8421AD Datasheet, PDF (5/37 Pages) List of Unclassifed Manufacturers – LOW-POWER, SINGLE AND DUAL-CHANNEL DIGITAL ISOLATORS

Si8410/20/21 (5 kV)
Si8422/23 (2.5 & 5 kV)
Table 1. Electrical Characteristics (Continued)
(V_DD1 = 5 V ±10%, V_DD2 = 5 V ±10%, T_A = –40 to 125 ºC)
Parameter
Symbol Test Condition
Min
Typ
Max Unit
1 Mbps Supply Current (All inputs = 500 kHz square wave, C_L = 15 pF on all outputs)
Si8410Ax, Bx
V_DD1
V_DD2
—
2.0
3.0
mA
—
1.1
1.7
Si8420Ax, Bx
V_DD1
V_DD2
—
3.5
5.3
mA
—
1.9
2.9
Si8421Ax, Bx
V_DD1
V_DD2
—
2.8
4.2
mA
—
2.8
4.2
Si8422Ax, Bx
V_DD1
V_DD2
—
2.8
4.2
mA
—
2.8
4.2
Si8423Ax, Bx
V_DD1
V_DD2
—
3.4
5.1
mA
—
1.9
2.9
10 Mbps Supply Current (All inputs = 5 MHz square wave, C_L = 15 pF on all outputs)
Si8410Bx
V_DD1
V_DD2
—
2.1
3.1
mA
—
1.5
2.1
Si8420Bx
V_DD1
V_DD2
Si8421Bx
—
3.6
5.4
mA
—
2.6
3.6
V_DD1
V_DD2
—
3.2
4.5
mA
—
3.2
4.5
Si8422Bx
V_DD1
V_DD2
Si8423Bx
—
3.2
4.5
mA
—
3.2
4.5
V_DD1
V_DD2
—
—
3.4
2.5
5.1
3.5
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. 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.
Rev. 1.3
5