Description:The Intersil ISL54058 device contains precision, bidirectional, analog switches configured as a dual 4-channel multiplexer/demultiplexer, designed to operate from a single +1. 6V to +3. 6V supply. ON resistance is 0. 41Ω with a +3V supply and 0. 61Ω with a single +1. 8V supply. Each switch can handle rail to rail analog signals. The off-leakage current is only 4nA max at +25°C or 40nA max at +85°C with a +3. 3V supply. All digital inputs are 1. 8V logic-compatible when using a single +3V supply. The ISL5405
The recommended PCB layout for optimal performance can be found in the ISL54058IRUZ-T evaluation board user manual or by contacting Renesas' technical support. It's essential to follow the recommended layout to minimize parasitic inductance and capacitance, ensuring optimal performance and reducing EMI.
The ISL54058IRUZ-T has a thermal pad on the bottom of the package, which should be connected to a thermal plane on the PCB to dissipate heat efficiently. Ensure good thermal conductivity by using a thermal interface material (TIM) and a heat sink if necessary. Follow the thermal management guidelines in the datasheet and application notes.
The recommended input capacitor type is a low-ESR ceramic capacitor (X5R or X7R dielectric) with a value of 1-10uF. The capacitor should be placed as close as possible to the VIN pin to minimize inductance and ensure stable operation.
To ensure EMC, follow the recommended PCB layout, use a shielded inductor, and add EMI filters (e.g., common-mode chokes) on the input and output lines. Additionally, ensure proper grounding and decoupling of the device, and consider using a metal shield or enclosure for the entire system.
The maximum allowed voltage on the enable pin (EN) is 6V. Exceeding this voltage may damage the device. Ensure that the voltage on the EN pin does not exceed 6V, even during power-up or power-down sequences.
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ISL54058IRUZ-T Overview
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