ISL61861AIBZ-T 1.5A USB Power Controller | Renesas
Référence : ISL61861AIBZ-T ✓ Actif| Qté | Prix unitaire | Total |
|---|---|---|
| 1 | $0.9596 | $0,96 |
| 10 | $0.9596 | $9,60 |
| 100 | $0.9596 | $95,96 |
| 500 | $0.9596 | $479,80 |
| 1 000 | $0.9596 | $959,60 |
ISL61861AIBZ-T Présentation
A USB power controller is a power-management semiconductor placed between a supply rail and a USB port. It provides controlled power-path connection, current limiting, and overcurrent protection, helping prevent excessive current from damaging a port, connector, or downstream device. In the broader hierarchy, this function belongs to hot-swap controllers, power-management ICs, and discrete-semiconductor protection systems.
The verified product information identifies the ISL6186 family as offering overcurrent protection for one or more USB ports. It includes eight functional variants and three package options, with commercial and industrial temperature-range options. The ISL61861AIBZ-T is identified as an 8-SOIC hot-swap controller for USB applications; the distributor listing describes the related single USB hot-swap function with 5 A or latch-related variants, while the target part is specified here with the verified 1.5 A current limit.
This controller is suitable for USB power ports in computers, peripherals, test equipment, and embedded systems where a downstream fault must not continuously overload the source. The integrated P-channel MOSFET can reduce the number of external switching elements, while the controller provides a defined protection function. Exact threshold, timing, absolute maximum, and temperature details should be confirmed in the Renesas datasheet before production release.
In a typical design, the controller is placed in the +5 V power path before the USB connector or power branch. Correct layout requires short, wide current-carrying traces, careful return-path planning, and compliance with the USB connector’s current and fault requirements. The verified distributor information lists an 8-SOIC package and tube packaging for the non-reel form; the -T ordering code is retained as the exact requested MPN.
This page combines verified manufacturer and distributor references, application guidance, comparison parameters, and design cautions. Because the supplied data does not include a complete Renesas datasheet specification table or a verified set of five pin-compatible alternatives, unconfirmed values are explicitly marked rather than inferred.
Alternatives de remplacement direct pour ISL61861AIBZ-T — même boîtier, compatible broche à broche. Les références à boîtier différent nécessitant une retouche du PCB sont exclues.
Outil de comparaison rapide — sélectionnez des références alternatives pour une comparaison côte à côte :
ISL61861AIBZ-T7A
✅ Remplacement direct📋 Alternative de référence (hors catalogue)
ISL61861AIBZ-T Valeurs maximales et caractéristiques électriques
| Product Type | USB port power supply controller / hot-swap switch |
| Nominal Operating Voltage | +2.5 V to +5 V |
| Limitation de courant | 1.5 A |
| Internal P-Channel MOSFET Resistance | 45 mΩ |
| Protection contre les surintensités | Provided |
| USB Ports Supported | One or more ports, depending on family variant |
| Boîtier | 8-SOIC, 0.154 inch / 3.90 mm width |
| Type de montage | Surface mount |
| Temperature Range | Commercial and industrial variants in the ISL6186 family |
| Switch Type | Hot-swap switch |
| Channel Count | 2-channel USB hot-swap controller classification |
| Distributor Packaging | Tube |
| Manufacturer | Renesas Electronics / Intersil |
| Application | USB overcurrent protection |
| Internal Switch | P-channel MOSFET |
| Supplier Reference | ISL61861AIBZ-T |
Guide de configuration des broches du ISL61861AIBZ-T 8-soic, 0.154 inch / 3.90 mm width
Configuration des broches du ISL61861AIBZ-T (boîtier 8-soic, 0.154 inch / 3.90 mm width). Ce composant de puissance comporte des bornes de grille, de drain et de source. Pour les boîtiers non polarisés, consultez la fiche technique du fabricant pour l'orientation exacte de la broche 1 et les détails de l'empreinte. Les applications courantes incluent la conception d'alimentations, la commande de moteurs et la commutation de charges.
Aucune donnée de brochage détaillée disponible pour ISL61861AIBZ-T.
Consultez la fiche technique pour la configuration complète des broches.
Applications typiques
ISL61861AIBZ-T convient pour 6 applications: USB Desktop and Peripheral Power Ports, USB Hubs and Port Power Distribution, Industrial USB Measurement Equipment, USB Test and Measurement Accessories, USB-C Power-Path Transition Designs, Embedded USB Data Acquisition Systems.
USB Desktop and Peripheral Power Ports
The ISL61861AIBZ-T fits USB power branches in computers, hubs, and peripherals where a downstream fault should not continuously overload the source. Its integrated 45 mΩ P-channel MOSFET provides a controlled power path, while the verified 1.5 A current limit is relevant to nominal +5 V USB protection. Place the controller between the source rail and the port branch, then validate connector current capacity, trace width, thermal rise, and the manufacturer-specified fault response. The device is most appropriate when the protected branch fits its current limit and operating voltage range.
Recommandé
USB Hubs and Port Power Distribution
For USB hub power distribution, the ISL61861AIBZ-T can provide overcurrent fault protection on a nominal +2.5 V to +5 V power branch. The verified family description explicitly covers USB overcurrent protection for one or more ports, making the device relevant to multi-branch protection designs. Designers should allocate the 1.5 A rating across the protected load and connector path rather than treating it as an unlimited source. Use short, wide traces, preserve a low-impedance return path, and confirm the controller’s latch or retry behavior in the exact variant datasheet before finalizing the hub architecture.
Recommandé
Industrial USB Measurement Equipment
The ISL61861AIBZ-T is suitable for industrial USB-powered measurement equipment where cable or peripheral faults must be isolated from the system supply. The manufacturer describes commercial and industrial temperature-range options in the ISL6186 family, while the target is specified for nominal +2.5 V to +5 V operation. The integrated P-channel MOSFET reduces the external switching-component count, but its 45 mΩ resistance still creates a load-dependent voltage drop. Confirm enclosure temperature limits, source current, grounding strategy, and the exact industrial ordering code with Renesas documentation before production.
Recommandé
USB Test and Measurement Accessories
Test fixtures and USB-powered instruments benefit from controlled overcurrent behavior because attached leads and devices can create unexpected load conditions. The ISL61861AIBZ-T provides a USB hot-swap function with a verified 1.5 A current limit and integrated 45 mΩ P-channel MOSFET. Position it close to the protected connector and supply branch so unwanted cable or peripheral faults do not propagate upstream. Verify the instrument’s available source current, connector pin current rating, and fault-state requirements. The supplied data does not provide application-specific timing values, so final testing should use the manufacturer’s worst-case conditions.
Recommandé
USB-C Power-Path Transition Designs
Although the verified target is described as a USB hot-swap controller in the ISL6186 family, it may be considered in USB-C power-path transition concepts after checking voltage and pin compatibility. The target is rated for nominal +2.5 V to +5 V, so it should not be assumed suitable for every USB-C voltage, current, or CC/PD control requirement. A USB-C implementation must separately validate source-current advertisement, contract behavior, data-line protection, and connector requirements. The ISL61861AIBZ-T can serve only where its exact pinout and electrical limits match the selected USB-C power architecture.
Recommandé
Embedded USB Data Acquisition Systems
Embedded data-acquisition systems often expose USB connectors to user cables, external sensors, and changing load conditions. The ISL61861AIBZ-T can protect a nominal +2.5 V to +5 V branch using its integrated P-channel MOSFET and verified 1.5 A current limit. In a data-acquisition design, keep the protected power path separate from sensitive analog returns where practical and verify that the MOSFET’s conduction drop does not compromise downstream voltage margins. Use the controller only after checking its exact channel, fault, and temperature ratings against the system’s worst-case load and supply conditions.
Recommandé
Récapitulatif des produits recommandés
Données de référence d'ingénierie pour ISL61861AIBZ-T — comparaison, recommandations de conception et informations de conformité.
Guide de sélection
Comparaison avec les alternatives
| Paramètre | Ce produit | ISL61861AIBZ-T7A |
|---|---|---|
| Product Type | USB port power supply controller / hot-swap switch | USB hot-swap controller variant; exact function requires datasheet confirmation |
| Brand | Renesas Electronics | Renesas Electronics |
Principaux différenciateurs
- Integrated 45 mΩ P-channel MOSFET in the USB power path (vs Generic discrete USB power switch)
- Verified 1.5 A current-limit specification (vs Unspecified generic USB hot-swap controller)
- Nominal +2.5 V to +5 V operating range (vs Higher-voltage USB power-path controller)
Notes de conception
Place the ISL61861AIBZ-T close to the USB connector or protected branch so the power-path loop is short and the controller can isolate a fault before excessive energy reaches the port. Use wide copper for the +5 V path and a continuous return plane, with vias distributed appropriately for the required current. The exact trace width depends on board copper thickness, allowable temperature rise, current duration, and fabrication constraints; those values are not specified in the supplied data and must be calculated for the final stack-up.
Use the listed 45 mΩ P-channel MOSFET resistance for preliminary loss analysis, but do not treat the arithmetic result as a guaranteed rating. Estimated: at 1.5 A, Vdrop = 1.5 × 0.045 = 0.0675 V and P = 1.5² × 0.045 = 0.10125 W. Verify the actual resistance versus temperature and bias from the Renesas datasheet. Also confirm that the upstream supply, connector, PCB copper, and downstream device can tolerate the resulting voltage drop and fault duty cycle.
Do not infer a complete pinout, fault timing, latch behavior, or enable polarity from the distributor search snippets. Confirm the exact ISL61861AIBZ-T package drawing, pin numbering, logic levels, current-limit tolerance, and response timing in the Renesas datasheet. Avoid assuming that a generic USB power switch is interchangeable: the replacement must match the 8-SOIC footprint and pin mapping as well as the overcurrent threshold and recovery policy. Validate protection behavior with cable faults, overloads, short circuits, and startup transients.
Thermal analysis should begin with the MOSFET conduction estimate and include copper spreading, ambient temperature, package thermal resistance, and the duration of each load condition. Estimated: the 0.10125 W loss at 1.5 A assumes the full listed resistance remains valid; actual loss can change with temperature and operating point. Because the supplied data does not provide theta-JA, maximum junction temperature, or an SOA curve, do not finalize a heatsink or copper-area decision without the manufacturer’s package thermal data.
Informations de conformité
The supplied verified results do not state RoHS, REACH, lead-free, halogen-free, or conflict-minerals status. The ISL6186 family is described as having commercial and industrial temperature-range options, but AEC-Q100 qualification for ISL61861AIBZ-T is not confirmed.
