Skyworks Solutions Inc. SI8462BA-A-IS1R

Overview

SI8462BA-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 SI8462BA-A-IS1R datasheet, SI8462BA-A-IS1R pinout, SI8462BA-A-IS1R application, or SI8462BA-A-IS1R equivalent, key selection criteria include its 2500 VRMS reinforced isolation rating, 25 kV/µs common-mode transient immunity, precise timing performance at 125 °C, and compatibility with 3.3 V and 5 V logic systems without level-shifting.

Technical Context

The SI8462BA-A-IS1R implements capacitive isolation using differential RF signaling across six independent bidirectional channels, with integrated on-chip series termination (≈85 Ω) for controlled-impedance PCB routing. Its architecture eliminates start-up initialization and supports DC-to-150 Mbps operation without external components beyond VDD bypass capacitors.

It achieves stable timing over –40 to +125 °C ambient temperature at full data rate, with pulse width distortion ≤2.5 ns and propagation delay skew ≤3.0 ns between units. Safety certification includes UL 1577 (2500 VRMS), CSA Component Notice 5A (IEC 60950-1/61010-1), and VDE IEC 60747-5-2 (reinforced insulation).

Key Specifications

Pinout & Package

SI8462BA-A-IS1R is housed in a RoHS-compliant 16-pin narrow-body SOIC package (7.5 mm × 10.3 mm, 1.27 mm pitch) 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 ADUM6402ARWZ and ISO6760FDWR, SI8462BA-A-IS1R uniquely balances six-channel count, 150 Mbps speed, and 25 kV/µs CMTI in a standard SOIC-16 footprint-making it optimal for next-generation motor drives and high-density power converters requiring both bandwidth and channel density.

Availability

SI8462BA-A-IS1R is available at Aetrix Electronics and suitable for industrial motor control, hybrid electric vehicle battery management, and isolated switch-mode power supplies requiring stable component supply, long-term lifecycle assurance, and certified 2500 VRMS isolation.

Supply support for SI8462BA-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 for high-reliability applications.

The Si846x family was designed specifically for high-speed, low-power galvanic isolation in demanding industrial, automotive, and energy infrastructure systems-emphasizing timing precision, safety certification, and extended temperature operation.

FAQ

What is the maximum operating temperature for continuous 150 Mbps operation of the SI8462BA-A-IS1R?

The SI8462BA-A-IS1R is rated for continuous 150 Mbps operation from –40 to +125 °C ambient temperature, verified under worst-case loading (15 pF) and supply conditions (2.70–5.5 V). This specification is explicitly confirmed in Tables 1 and 6 of the official Skyworks datasheet Rev. 1.6, making SI8462BA-A-IS1R suitable for under-hood automotive and high-temperature industrial enclosures without derating.

Does the SI8462BA-A-IS1R require external passive components for basic operation?

No, the SI8462BA-A-IS1R requires only VDD bypass capacitors (0.1 µF ceramic per supply rail) for stable operation. It does not need external pull-ups, level shifters, or termination resistors for standard 15 pF loads at ≤150 Mbps. The internal 85 Ω output impedance is optimized for controlled-impedance PCB traces, and no start-up initialization sequence is needed - simplifying design-in versus optocouplers or older isolators.

How does the SI8462BA-A-IS1R achieve its 25 kV/µs common-mode transient immunity?

The SI8462BA-A-IS1R achieves 25 kV/µs CMTI through differential capacitive coupling and on-chip noise rejection circuitry that actively cancels fast common-mode edges across the isolation barrier. This is measured per JEDEC JESD22-A114 with VI = VDD or 0 V, and is validated across the full –40 to +125 °C range. The result is robust operation in noisy environments like IGBT gate driver circuits where dV/dt exceeds 50 kV/µs.

Is the SI8462BA-A-IS1R pin-compatible with other members of the Si846x family?

Yes, all Si846x variants (Si8460/61/62/63) share identical 16-pin narrow-body SOIC pinouts and package dimensions. The SI8462BA-A-IS1R uses the same pin mapping as Si8460BA-A-IS1R and Si8463BA-A-IS1R, allowing drop-in replacement within the same channel count and directionality configuration - though data rate, power consumption, and timing specs differ per variant.

What safety certifications apply to the SI8462BA-A-IS1R and what working voltages do they support?

The SI8462BA-A-IS1R holds UL 1577 (2500 VRMS, 1 min), CSA Component Notice 5A (IEC 60950-1/61010-1), and VDE IEC 60747-5-2 certifications. These validate reinforced insulation up to 300 VRMS working voltage (CSA), 560 Vpeak (VDE), and 2500 VRMS test voltage (UL). All certifications apply to the 2.5 kVRMS-rated NB SOIC-16 package, with production units tested to 3000 VRMS for 1 second.