Skyworks Solutions Inc. SI8462BB-A-IS1R

Overview

SI8462BB-A-IS1R from Skyworks Solutions is a six-channel, ultra-low-power digital isolator in a 16-pin narrow-body SOIC package, supporting up to 150 Mbps data rate with worst-case propagation delay under 9.5 ns and channel-to-channel skew as low as 0.5 ns. It operates across 2.70–5.5 V supply rails and delivers <13.3 mA per side at 100 Mbps (5 V), enabling high-speed isolated communication in motor control and industrial power inverters.

For engineers reviewing the SI8462BB-A-IS1R datasheet, SI8462BB-A-IS1R pinout, SI8462BB-A-IS1R application, or SI8462BB-A-IS1R equivalent, key selection criteria include its 2500 VRMS reinforced insulation rating, 25 kV/µs common-mode transient immunity, and guaranteed timing performance over –40 to +125 °C at full data rate - critical for safety-critical isolated gate drivers and isolated ADC interfaces.

Technical Context

The SI8462BB-A-IS1R implements capacitive isolation using differential RF signaling across an on-chip SiO₂ barrier, delivering galvanic separation between two independent 3.3 V or 5 V domains. Its six unidirectional channels are split 3/3 across isolation barrier, with no internal level-shifting or protocol awareness - requiring external logic alignment for bidirectional use cases.

All channels feature matched propagation delay (±3.0 ns typical P-P skew), sub-2.5 ns pulse width distortion, and 6 ns minimum input pulse width compliance. The device requires only 0.1 µF VDD bypass capacitors per side and achieves stable operation without startup initialization or configuration registers.

Key Specifications

Pinout & Package

SI8462BB-A-IS1R is housed in a RoHS-compliant 16-pin narrow-body SOIC package (5.3 mm width, 10.3 mm length) with creepage and clearance ≥3.9 mm per IEC 60664-1.

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar digital isolator applications.

Compared with ADUM140D0BRZ and ISO6760QDWR, SI8462BB-A-IS1R uniquely balances six-channel count, 150 Mbps speed, and 2.5 kVRMS rating in a standard SOIC footprint - making it optimal for industrial inverters needing both bandwidth and channel density without layout rework.

Availability

SI8462BB-A-IS1R is available at Aetrix Electronics and suitable for industrial motor drives, isolated switch-mode power supplies, and EV onboard charger control requiring stable component supply and long-term lifecycle support.

Supply support for SI8462BB-A-IS1R includes scheduled delivery planning, volume procurement assistance, BOM continuity management, traceable sourcing, and lifecycle availability coordination for OEM customers, industrial embedded developers, connected-device designers, and electronics production programs.

Manufacturer

Skyworks Solutions is a global semiconductor company specializing in analog and mixed-signal connectivity solutions, with leadership in RF, timing, and isolation technologies.

The Si846x family was designed specifically for high-reliability industrial and automotive isolation applications demanding low power, precise timing, and robust CMTI - targeting next-generation inverters, PLCs, and isolated power systems.

FAQ

What is the maximum data rate supported by SI8462BB-A-IS1R?

The SI8462BB-A-IS1R supports a maximum data rate of 150 Mbps across all six channels under specified operating conditions (VDD = 5 V, TA = –40 to +125 °C). This is confirmed in Table 3 timing characteristics for Si846xBx variants, where SI8462BB-A-IS1R falls under the "B" speed grade. Performance remains stable without derating up to the full temperature range.

Does SI8462BB-A-IS1R require external configuration or startup initialization?

No, SI8462BB-A-IS1R requires no external configuration, registers, or startup initialization sequence. Valid logic-level output is guaranteed within 40 µs of power application (tSU specification), and the device begins passing data immediately upon power stabilization - simplifying system boot design for safety-critical applications.

What safety certifications apply to SI8462BB-A-IS1R?

SI8462BB-A-IS1R is certified to UL 1577 (2500 VRMS), CSA Component Notice 5A (IEC 60950-1/61010-1), and VDE 0884-2 (IEC 60747-5-2), all covering reinforced insulation. These certifications are validated for the 2.5 kVRMS-rated narrow-body SOIC package and include production testing to 3000 VRMS for 1 second per regulatory note.

Can SI8462BB-A-IS1R operate with different supply voltages on each side?

Yes, SI8462BB-A-IS1R supports independent supply rails: VDD1 and VDD2 each operate from 2.70 V to 5.5 V, allowing mixed-voltage interfacing - for example, 3.3 V MCU logic on one side and 5 V analog circuitry on the other. Electrical specifications (e.g., VOH, VOL, timing) are guaranteed across this full range per Tables 3–5.

Is SI8462BB-A-IS1R pin-compatible with other Si846x variants?

Yes, all Si846x devices (Si8460/Si8461/Si8462/Si8463) share identical 16-pin narrow-body SOIC pinouts and footprints. SI8462BB-A-IS1R is mechanically and electrically pin-compatible with Si8462AB-A-IS1R (1 Mbps variant) and Si8462BA-A-IS1R (100 Mbps variant), differing only in speed grade and internal calibration - enabling drop-in replacement within same package.