SI8460 Datasheet, PDF (8/36 Pages) Silicon Laboratories – LOW POWER SIX-CHANNEL DIGITAL ISOLATOR

Si8460/61/62/63
Table 3. Electrical Characteristics (Continued)
(V_DD1 = 5 V±10%, V_DD2 = 5 V±10%, T_A = –40 to 125 °C; applies to narrow-body SOIC package)
Parameter
Symbol Test Condition
Min
Typ
Max Unit
All Models
Output Rise Time
t_r
C_L = 15 pF
—
3.8
5.0
ns
See Figure 1
Output Fall Time
t_f
C_L = 15 pF
—
2.8
3.7
ns
See Figure 1
Common Mode Transient
CMTI
V_I = V_DD or 0 V
—
Immunity
25
— kV/µs
d _{Start-up Time}3
t_SU
—
15
40
µs
e Notes:
1. The nominal output impedance of an isolator driver channel is approximately 85 , ±40%, which is a combination of
d _{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
n _{s impedance PCB traces.}
2. t_PSK(P-P) is the magnitude of the difference in propagation delay times measured between different units operating at
e _{n 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.
omm ^{esig 1.4V}
Typical
c ^D _Input
t ^{Re ew 1.4V}
o ^{N Typical}
N _for ^Output
t_PLH
t_PHL
90%
10%
90%
10%
t_r
t_f
Figure 1. Propagation Delay Timing
8
Rev. 1.5