SI88240ED-IS Datasheet, PDF (10/48 Pages) Silicon Laboratories – QUAD DIGITAL ISOLATORS WITH DC-DC CONVERTER

Si88x4x
Table 2. Electrical Characteristics¹ (Continued)
V_IN = 24 V; V_DDA = 4.3 V (see Figure 3) for all Si8844x/64x; V_DDA = V_DDP = 3.0 to 5.5 V (see Figure 2) for all Si8824x/34x;
T_A = –40 to 125 °C unless otherwise noted
Parameter
Symbol
Test Condition
Min Typ Max Unit
Si88x41
V_DDA
V_DDB
mA
—
8.4
—
6.3
Si88x42
V_DDA
V_DDB
Si88x43
V_DDA
V_DDB
mA
—
8.2
—
6.2
mA
—
7.8
—
6.7
Si88x44
V_DDA
V_DDB
mA
—
6.9
—
7.4
100 Mbps, VDDx = 5 V ± 10% (All Inputs = 50 MHz Square Wave, C_LOAD = 15 pF)
Si88x40
V_DDA
V_DDB
mA
—
8.2
— 26.2
Si88x41
V_DDA
V_DDB
mA
— 14.7
— 22.0
Si88x42
V_DDA
V_DDB
Si88x43
V_DDA
V_DDB
mA
— 18.9
— 16.5
mA
— 24.0
— 11.7
Si88x44
V_DDA
V_DDB
mA
28.1
6.6
Timing Characteristics
Data Rate
0
— 100 Mbps
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.
10
Preliminary Rev. 0.6