SI88240ED-IS Datasheet, PDF (7/48 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
Si88x43
V_DDA
V_DDB
V_DDA
V_DDB
All inputs = 0
—
8.5
mA
All inputs = 0
—
9.3
All inputs = 1
—
6.5
All inputs = 1
—
3.9
Si88x44
V_DDA
V_DDB
V_DDA
V_DDB
mA
All inputs = 0
—
6.6
All inputs = 0
— 10.6
All inputs = 1
—
6.5
All inputs = 1
—
3.6
1 Mbps, VDDx = 3.3 V ± 10% (All Inputs = 500 kHz Square Wave, C_LOAD = 15 pF)
Si88x40
V_DDA
V_DDB
mA
—
8.9
—
5.4
Si88x41
V_DDA
V_DDB
mA
—
8.3
—
6.0
Si88x42
V_DDA
V_DDB
mA
—
7.9
—
6.1
Si88x43
V_DDA
V_DDB
mA
—
7.6
—
6.7
Si88x44
V_DDA
V_DDB
mA
—
6.7
—
7.1
100 Mbps, VDDx = 3.3 V ± 10% (All Inputs = 50 MHz Square Wave, C_LOAD = 15 pF)
Si88x40
V_DDA
V_DDB
mA
—
8.7
— 19.2
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.
Preliminary Rev. 0.6
7