Description:1-of-4 bidirectional translating multiplexer
I2C-bus interface logic;
Operating power supply voltage :1.65 V to 5.5 V
Allows voltage level translation between 1.2V,
1.8V,2.5 V, 3.3 V and 5 V buses
Low standby current
Low Ron switches
Channel selection via I2C bus
Power-up with all multiplexer channels deselected
Capacitance isolation when channel disabled
No glitch on power-up
Supports hot insertion
5 V tolerant inputs
0 Hz to 400 kHz clock frequency
ESD protection ex
A good PCB layout for the PI4MSD5V9544ALEX involves keeping the input and output tracks as short as possible, using a solid ground plane, and minimizing the distance between the device and the decoupling capacitors. Additionally, it's recommended to use a 4-layer PCB with a dedicated power plane and a dedicated ground plane.
To ensure proper power-on and power-off sequencing, it's recommended to follow the power-up and power-down sequences outlined in the datasheet. Additionally, make sure to provide a clean and stable power supply, and use a soft-start circuit to limit inrush current during power-on.
The PI4MSD5V9544ALEX has a maximum junction temperature of 150°C. To ensure reliable operation, it's essential to provide adequate heat sinking, such as a thermal pad or a heat sink, and to keep the device within the recommended operating temperature range.
To troubleshoot issues with the PI4MSD5V9544ALEX, start by checking the power supply voltage, input and output signals, and decoupling capacitors. Use an oscilloscope to verify signal integrity and check for any signs of oscillation or instability. Consult the datasheet and application notes for guidance on troubleshooting common issues.
The PI4MSD5V9544ALEX has built-in ESD protection, but it's still essential to follow proper ESD handling procedures during assembly and testing. Use an ESD wrist strap or mat, and ensure that all equipment and tools are properly grounded.
Trust Checks
This model has been built in collaboration with the manufacturer.
Manufacturer Collaborated
This model has been verified by system checks.
System Verified
This model has been reviewed by community users.
Community Approved
Sponsored
PI4MSD5V9544ALEX Overview
Use the download button to access the PI4MSD5V9544ALEX schematic symbol, PCB footprint, and 3D model.
To find more CAD model downloads similar to this part, try a partial part number search, like PI4MS,
or try a keyword search, such as Multiplexers or Switches
