SI88X2X Datasheet, PDF (11/45 Pages) Silicon Laboratories – Isolation of up to 5000 Vrms

Si88x2x
Table 2. Electrical Characteristics¹ (Continued)
V_IN = 24 V; V_DDA = V_DDP = 3.0 to 5.5 V (see Figure 2) for all Si8822x/32x; V_DDA = 4.3 V (see Figure 3) for all Si8842x/62x;
T_A = –40 to 125 °C unless otherwise noted.
Parameter
Symbol
Test Condition
Min Typ Max Unit
Channel-Channel
t_PSK
Skew
—
1.0
ns
Output Rise Time
t_r
C_L = 15 pF
2.5
ns
Output Fall Time
t_f
C_L = 15 pF
2.5
ns
Common Mode
Transient Immunity
Startup Time⁷
CMTI
t_SU
V_I = VDDx or 0 V
40 100
V_CM = 1500 V (See Figure 4)
55
kV/µs
µs
Notes:
1. Over recommended operating conditions as noted in Table 1.
2. VOUT = VSNS x (1 + R1/R2) + R1 x I_offset
3. VDDP current needed for dc-dc circuits.
4. VDDA current needed for dc-dc circuits.
5. 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.
6. 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.
7. Start-up time is the time period from when the UVLO threshold is exceeded to valid data at the output.
1.4 V
Input
t_PLH
t_PHL
1.4 V
Output
90%
10%
90%
10%
t_r
t_f
Figure 1. Propagation Delay Timing for Digital Channels
Rev. 0.5
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