SI8441-A-IS Silicon Laboratories Inc, SI8441-A-IS Datasheet - Page 22

• Manufacturer Part Number: SI8441-A-IS
• Description: IC ISOLATOR 4CH 2.5KV 1M 16SOIC
• Manufacturer: Silicon Laboratories Inc
• Series: ISOpror

Specifications of SI8441-A-IS

• Inputs - Side 1/side 2: 3/1
• Number Of Channels: 4
• Isolation Rating: 2500Vrms
• Voltage - Supply: 2.7 V ~ 5.5 V
• Output Type: Tri-State
• Package / Case: 16-SOIC (0.300", 7.5mm Width)
• Operating Temperature: -40°C ~ 125°C
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Data Rate: -
• Propagation Delay: -
• Other names: 336-1372; SI8441-A-IS

Si8440/41/42/45
4.3. Enable Inputs
Enable inputs EN1 and EN2 can be used for multiplexing, for clock sync, or other output control. EN1, EN2 logic
operation is summarized for each isolator product in Table 13. These inputs are internally pulled-up to local VDD by
a 9 µA current source allowing them to be connected to an external logic level (high or low) or left floating. To
minimize noise coupling, do not connect circuit traces to EN1 or EN2 if they are left floating. If EN1, EN2 are
unused, it is recommended they be connected to an external logic level, especially if the Si84xx is operating in a
noisy environment.
22
*Note: X = not applicable; H = Logic High; L = Logic Low.
Si8440
Si8441
Si8442
Si8445
P/N
EN1*
—
—
—
H
X
X
H
X
X
L
L
EN2*
—
H
X
X
H
X
X
H
L
L
L
Outputs B1, B2, B3, B4 are enabled.
Outputs B1, B2, B3, B4 are disabled and in high impedance state.
Output A4 enabled.
Output A4 disabled and in high impedance state.
Outputs B1, B2, B3 are enabled.
Outputs B1, B2, B3 are disabled and in high impedance state.
Outputs A3 and A4 are enabled.
Outputs A3 and A4 are disabled and in high impedance state.
Outputs B1 and B2 are enabled.
Outputs B1 and B2 are disabled and in high impedance state.
Outputs B1, B2, B3, B4 are enabled.
Table 13. Enable Input Truth Table
Rev. 0.62
Operation