ISL61851AIBZ

Hot Swap Controllers Overview

The ISL61851AIBZ is a dual-channel hot-swap voltage controller designed for USB applications, manufactured by Renesas Electronics Corporation. It integrates internal high-side N-channel MOSFETs to manage power insertion and removal safely. The device operates within a supply voltage range of 2.3V to 5.5V and supports an output current capability of up to 0.6A per channel. It features comprehensive protection mechanisms including fault timeout, latch-off fault handling, thermal limiting, and undervoltage lockout (UVLO). The component is housed in an 8-SOIC package with a width of 3.90mm and is rated for commercial operating temperatures between 0°C and +70°C.

Hot Swap Controllers Feature Summary

• Integrates dual internal high-side N-channel FETs for compact dual-port USB hot-swap control
• Provides robust circuit protection through fault timeout, latch-off, and thermal limiting features
• Supports safe power insertion and removal with undervoltage lockout and controlled turn-on

Hot Swap Controllers Applications

• Dual-port USB hub power management
• USB peripheral hot-plug protection circuits
• Compact USB host controller power sequencing

Hot Swap Controllers Procurement Notes

Verify the specific suffix 'AIBZ' against official Renesas documentation to confirm pinout and feature set accuracy. Note that this component is listed as End-of-Life (EOL) by the manufacturer. Confirm availability through authorized distributors or secondary market sources, as standard factory production has ceased. Ensure compliance with RoHS3 specifications if required for your assembly process.

Hot Swap Controllers Selection Notes

Select this component when designing dual-channel USB interfaces requiring integrated power switches to minimize board space. It is suitable for systems needing precise control over inrush current and short-circuit protection without external MOSFETs. Consider the 8-SOIC package constraints and commercial temperature range suitability for your enclosure design.

Hot Swap Controllers Part Context

The ISL61851 series belongs to Renesas's portfolio of hot-swap controllers, specifically tailored for USB power management. This family includes variants like the ISL61851ACBZ and ISL61851ICBZ, which share similar core functionalities but may differ in packaging or minor electrical characteristics. The series addresses the need for reliable, space-efficient power switching in modern USB-centric electronics.

Hot Swap Controllers Replacement Considerations

Public confirmed substitute part numbers are not available in the provided source material due to the product's End-of-Life status. Designers should consult Renesas application notes for migration guides to newer PMIC families or evaluate generic dual-channel hot-swap controllers with compatible SOIC-8 footprints.