SI88X2X Datasheet, PDF(9/45 Page) Silicon Laboratories

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SI88X2X Datasheet, PDF (9/45 Pages) Silicon Laboratories – Isolation of up to 5000 Vrms

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Si88x2x

Table 2. Electrical Characteristics1 (Continued)

VIN = 24 V; VDDA = VDDP = 3.0 to 5.5 V (see Figure 2) for all Si8822x/32x; VDDA = 4.3 V (see Figure 3) for all Si8842x/62x;

TA = â40 to 125 Â°C unless otherwise noted.

Parameter

Symbol

Test Condition

Min Typ Max Unit

DC, VDDB = 5 V Â± 10%

Si88x20

VDDA

VDDB

VDDA

VDDB

All inputs = 0

8.9

All inputs = 0

5.3

All inputs = 1

5.3

All inputs = 1

5.2

Si88x21

VDDA

VDDB

VDDA

VDDB

All inputs = 0

7.8

All inputs = 0

5.0

All inputs = 1

5.9

All inputs = 1

3.1

Si88x22

VDDA

VDDB

VDDA

VDDB

All inputs = 0

5.8

All inputs = 0

6.4

All inputs = 1

5.7

All inputs = 1

2.7

1 Mbps, VDDB = 5 V Â± 10% (All Inputs = 500 kHz Square Wave, CLOAD = 15 pF)

Si88x20

VDDA

VDDB

7.1

5.3

Si88x21

VDDA

VDDB

6.9

4.1

Si88x22

VDDA

VDDB

5.9

4.6

Notes:

1. Over recommended operating conditions as noted in Table 1.

2. VOUT = VSNS x (1 + R1/R2) + R1 x Ioffset

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 ï, Â±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.

Rev. 0.5

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