Si8430/31/35

Rev. 1.5

5

Table 3. Electrical Characteristics

Parameter

Symbol

Test Condition

Min

Typ

Max

Unit

High Level Input Voltage

2.0

—

—

V

Low Level Input Voltage

——

0.8

V

High Level Output Voltage

loh = –4 mA

4.8

—

V

Low Level Output Voltage

lol = 4 mA

—

0.2

0.4

V

Input Leakage Current

——

±10

µA

Output Impedance1

—85

—



Enable Input High Current

—2.0

—

µA

Enable Input Low Current

—2.0

—

µA

DC Supply Current (All inputs 0 V or at Supply)

Si8430Ax, Bx and Si8435Bx

All inputs 0 DC

All inputs 0 DC

All inputs 1 DC

All inputs 1 DC

—

—

—

—

1.2

1.9

4.2

1.9

1.8

2.9

6.3

2.9

mA

Si8431Ax, Bx

All inputs 0 DC

All inputs 0 DC

All inputs 1 DC

All inputs 1 DC

—

—

—

—

1.7

2.0

3.7

3.0

2.6

3.0

5.6

4.5

mA

1 Mbps Supply Current (All inputs = 500 kHz square wave, CI = 15 pF on all outputs)

Si8430Ax, Bx and Si8435Bx

—

—

2.7

2.2

4.1

3.3

mA

Si8431Ax, Bx

—

—

2.8

2.7

4.2

4.1

mA

10 Mbps Supply Current (All inputs = 5 MHz square wave, CI = 15 pF on all outputs)

Si8430Bx, Si8435Bx

—

—

2.7

3.0

4.1

4.2

mA

Si8431Bx

—

—

3.1

3.2

4.3

4.5

mA

Notes:

1. The nominal output impedance of an isolator driver channel is approximately 85

, ±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.

the same supply voltages, load, and ambient temperature.

3. See "3. Errata and Design Migration Guidelines" on page 25 for more details.

4. Start-up time is the time period from the application of power to valid data at the output.