 English |
|
|
|
|
|
|
|
| TCA9802 Datasheet, PDF (15/36 Pages) Texas Instruments – Level-Translating I2C Bus Buffer/Repeater | |||
| |||
| ◁ |
www.ti.com
TCA9802
SCPS266 â MARCH 2017
9.4.1.2.2 IEXT-O
IEXT-O is an unintentional current from the TCA980x's internal current source that is external. Leaking ESD cells
are a common contributor to leakage current. This type of input leakage may not exceed the IEXT-O maximum
spec, or else the TCA980x can interpret this excessive current as an external device transmitting a low, causing
the bus to latch. It is important to consider the total sum of I2C slave device's leakage to ground, and that it does
not violate IEXT-O. An example showing a typical IEXT-O leakage path through an ESD cell is shown in Figure 14.
TCA980x
VCCB
I2C Slave
ICS
A-Side
B-Side
Figure 14. IEXT-O Example
Copyright © 2017, Texas Instruments Incorporated
Product Folder Links: TCA9802
Submit Documentation Feedback
15
|
▷ |
German
Russian
Spanish
Italian
Polish
Chinese
Japanese
Korean
French
Portuguese