SI846X Datasheet, PDF (12/36 Pages) Silicon Laboratories – LOW POWER SIX-CHANNEL DIGITAL ISOLATOR

Si8460/61/62/63
Table 4. Electrical Characteristics (Continued)
(V_DD1 = 3.3 V±10%, V_DD2 = 3.3 V±10%, T_A = –40 to 125 °C; applies to narrow-body SOIC package)
Parameter
All Models
Output Rise Time
Symbol Test Condition
Min
t_r
C_L = 15 pF
—
See Figure 1
Typ
Max Unit
4.3
6.1
ns
Output Fall Time
t_f
C_L = 15 pF
—
See Figure 1
3.0
4.3
ns
Common Mode Transient
CMTI V_I = V_DD or 0 V
—
25
— kV/µs
Immunity
Start-up Time³
t_SU
—
15
40
µs
Notes:
d 1. The nominal output impedance of an isolator driver channel is approximately 85 , ±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
e _{where transmission line effects will be a factor, output pins should be appropriately terminated with controlled}
d impedance PCB traces.
2. t_PSK(P-P) is the magnitude of the difference in propagation delay times measured between different units operating at
n _{the same supply voltages, load, and ambient temperature.}
Not ^{Rfoer cNoemwmDeesigns 3. Start-up time is the time period from the application of power to valid data at the output.}
12
Rev. 1.5