PCA9546ADG4

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PCA9546A is a dual bidirectional I2C-bus switch that enables the connection of two I2C-bus devices to the same bus with no code changes to the existing I2C-bus master. It contains four non-multiplexed bidirectional translating switches that can interface signals with multiple devices with different voltage levels. The switches are controlled via the I2C bus which can be configured as an active-low reset, or an inactive-high reset. I2C-bus devices can be connected through PCA9546A to simplify multiple-device communications on the same I2C-bus.

Due to its solid and durable design, PCA9546A is a popular and reliable choice for interface applications, communication systems and application designs. Its key features include improved lightning susceptibility, and excellent noise immunity, making it ideal for low-power and high voltage applications. This device is widely used in cellular base station transceivers, navigational systems, and medical equipment.

This device is made from silicon which has a strong dielectric that blocks low power signals from transmitting between the two switching channels. This eliminates the need for expensive cables for connections between switches and also eliminates the possibility of signal interference. The continuous electrical path between the two channels also helps eliminate noise on the board.

The PCA9546A switch provides a full protection of the power-up, power-down, and low-power conditions, thanks to its automatic shutdown switch. When the device is powered-down, the switch automatically switches off to prevent current leakage and power-up during power-up, a low-on-time delay from 1ms to 5ms helps prevent incorrect logic at the I2C buses.

The PCA9546A also offers a multiplexer function to enable the connection of multiple I2C-bus masters to the same I2C-bus. The device also offers an address switch feature to allow the connection of up to five I2C-bus masters to the same bus, with each master using a unique address. This switch can also be used in combination with a slave address multiplexer switch to further extend I2C-bus expansion capabilities.

The PCA9546A provides fast switching between the switching channels and can provide up to 20MHz on the I2C-bus. The low-power state of the device consumes less than 5uA and the maximum output current can be easily set up to 120mA for areas where high current is needed.

The PCA9546A has a wide range of applications in the industry. It can be used in control and communication systems, automotive, medical and industrial systems. The device can also be used for connection of I2C peripherals for smart home and industrial automation, for bridging I2C-bus devices to different networks, or for connection of multiple I2C-bus masters to the same bus.

PCA9546A is an easy to use and reliable switching solution suitable for various applications. The device’s various features, such as its easy to connect structure, built-in diagnostic functions and low-power state help to ensure that it is suitable for a wide range of applications. With its excellent performance, PCA9546A is the perfect choice for any kind of low-power and high voltage applications.

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