Hi Kiranjit,
There is no exact way for me to isolate the root cause of this heating issue. It may be that the silicon of the CAT9555 is better designed, and has better heat dissipation than the TCA9555. If this issue was of a concern across two TCA9555…
Part Number: TCA9555 Other Parts Discussed in Thread: TCAL6416 Hi,
I find TCA9555 Tj max. is 100C only on data sheet. Is this true? Normally Tj is 125C, why is this part 100C max.?
It seems our TJ less than competitior's.
Part Number: TCA9555 Other Parts Discussed in Thread: TCA9534A , TMP275 , TM4C129ENCPDT , TCA4307
Hi,
I am using TCA9555 three chips connected to same I2C bus and another I2C Temperature sensing chip TMP275AID. So basically, I have total four I2C chips…
Part Number: TCA9555 Hello,
We are using TCA9555 to drive Led's (MPN: WP130WCP/2EGW).
And we are getting output voltage 1.6VDC from Port 14 to port 17 instead of 3.2 VDC as per logic.
Please share your valuable feedbacks or suggestions.
Thanks, …
Part Number: TM4C1294NCPDT Other Parts Discussed in Thread: TCA9555 I am trying to interface an LED display board based on TCA9555 through i2c. Used I2C0 in TM4c1294NCPDT. Configured Port0 as output in TCA9555. However the LED is not on. The code snippet…
Part Number: TCA9555 Other Parts Discussed in Thread: TCAL6416 , TCA6416A Hi,
We are using TCA9555PWR IO-Expander chip. We want to know if it can safely tolerate 5v input signals on its inputs while the chip Vcc is at 3.3V. I assume there is some sort…
Kiranjit,
Kiranjit Kaur said: >>> In this pdf, only the names of example codes are given and not the actual codes, e.g., ektm4c129_i2c_master_cpu_nonfifo, ektm4c129_i2c_master_cpu_fifo etc. Are there any source code files of these example codes…
Part Number: TCA9555 Hello,
I tested MOSFET functionality in using IO-Expander:
SDL and SCL scope :
we’re getting the P17 bit (‘Source’) as ‘1’ (3.3 VDC)for Source selection and ‘0’ for Sink selection.
But when…
Part Number: TCA9555 Other Parts Discussed in Thread: TM4C1292NCPDT ,
Hi,
I need to know how much input supply current I can give to the IO expander IC for one channel with respect to VCC 3.3V.
In my circuit, I'm connecting I2C lines of TM4C1292NCPDT microcontroller…
Part Number: TCA9555 Asking on behalf of customer.
The TCA9555RTWR is out of stock; can the TCA9555RGER be used as a drop in replacement without modifying the PCB?
It appears the PCB patterns are very very similar.
Thanks!
-Steve