Description:The ISL6185 USB power controller family provides fully independent overcurrent (OC) fault protection for two or more USB ports. This product family consists of sixteen individual functional product variants and three package options. It is operation rated for a nominal +2. 5V to +5V range and is specified over the full commercial and industrial temperature ranges. Each ISL6185 type incorporates in a single package two 71mΩ P-channel MOSFET power switches for power control. Each features internal current mon
Renesas provides a recommended layout and placement guide in the datasheet, but it's essential to follow good PCB design practices, such as keeping the input and output capacitors close to the IC, using a solid ground plane, and minimizing trace lengths and widths to reduce EMI and noise.
The datasheet provides guidelines for capacitor selection, but it's crucial to consider factors like capacitor type, value, and ESR. X5R or X7R ceramic capacitors are recommended for input and output filtering, and the values should be chosen based on the specific application's requirements and operating frequency.
The ISL61851JIBZ has an operating temperature range of -40°C to +125°C, but it's essential to consider the derating curves and thermal management to ensure reliable operation within the specified temperature range.
The ISL61851JIBZ has a built-in overcurrent protection feature, but it's recommended to add external circuitry, such as a sense resistor and a comparator, to detect and respond to overcurrent conditions. The datasheet provides guidance on implementing overcurrent protection.
The recommended startup sequence is to apply the input voltage, followed by the enable signal (EN). This ensures proper startup and prevents unwanted behavior. The datasheet provides a detailed startup sequence diagram.
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ISL61851JIBZ Overview
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