Part Number: TCA9546A Other Parts Discussed in Thread: PCA9544A , PCA9546A Tool/software: Linux Hi all,
We are currently changing from ti,PCA9544A to TCA9546A and we have some trouble with Linux driver.
There is no input for ti,tca9546a compatibility…
Part Number: PCA9544A Other Parts Discussed in Thread: TCA9544A Hi, Team
My communication customer is using PCA9544A in their BBU product. The PCA9544A works correctly in room temperature.
They find that when system is power up in -10C ambient temperature…
Part Number: PCA9544A I can write to the PCA9544 and an ACK, but when I read from the device, the SDA line stays low after the ACK until a power reset.
I have 4k7 pullups on all the I2C busses around the device, 10k pullups on all the !INT lines and the…
Part Number: PCA9544A Hi;
Because of customer carelessness, I used PCA9544A with the HW configuration of pull-down all the INT in/out pins to GND directly(because unused). And now there is no chance to modify. I note that there is a description which…
Part Number: PCA9544A Hi,
the 400mW total power wc is for my power derating too conservative and I would like to get some typical numbers for the following config:
PCA9544A
TSSOP20 package
VCC = 3.3 V
bus speed = 100kHz
all pull-up resistors are 4k7
…
Part Number: PCA9544A Hi team,
Our customer has requested to provide layout pattern with dimensions on PCA9544AZQNR (ZQN, BGA MICROSTAR JUNIOR package).
We checked PCA9544A datasheet, but no land pattern with dimensions in it.
We also checked the CAD…
Other Parts Discussed in Thread: PCA9544A Hi Forum,
I am currently trying to interface pca9544a (4 channel i2c mux chip) with the i2c bus. please find below my device tree bindings.
i2c1_pins_default: i2c1_pins_default {
pinctrl-single,pins = <
0x240…
Hi all. I have two questions about the internal circuit of PCA9544. 1. I use this device the following case, is this device maintained without breakege? ・Vcc=0, INT0_4=5V, A0_2=5V I am concerned that this device be latch up breakege, but I think this device…
Part Number: PCA9554A Other Parts Discussed in Thread: PCA9544A , TCA9544A , TCA9554A Hi,
Good Day. What is the junction to board thermal resistance of PCA9554A?
Please advise. Thank you very much.
Best Regards,
Ray Vincent
Other Parts Discussed in Thread: PCA9544A , TPD2E001 I am using the PCA9544A SMBUS mux. I did not put pull-up resistors on the output of my prototype board like figure 11 shows in the spec sheet. I am able to read data from the three attached battery modules…
