Skyworks Solutions Inc. SI8463BA-A-IS1R

Overview

SI8463BA-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 <9.5 ns, 0.5 ns channel-channel skew, and 25 kV/µs common-mode transient immunity. It operates across 2.70–5.5 V supply rails and delivers <17.2 mA per side at 100 Mbps (5 V), enabling high-speed isolation in motor control and isolated power supplies.

For engineers reviewing the SI8463BA-A-IS1R datasheet, SI8463BA-A-IS1R pinout, SI8463BA-A-IS1R application, or SI8463BA-A-IS1R equivalent, key selection criteria include its 150 Mbps capability, 2.5 kVRMS reinforced insulation rating (UL/CSA/VDE certified), 6-channel unidirectional configuration, and operation from –40 °C to +125 °C at full speed - critical for industrial inverters and isolated ADC interfaces.

Technical Context

The SI8463BA-A-IS1R implements capacitive isolation with on-chip RF modulation/demodulation circuitry, eliminating start-up initialization and enabling immediate data transmission after power-on. Its architecture supports independent primary-side (VDD1) and secondary-side (VDD2) supplies, each configurable from 2.70 V to 5.5 V, with output impedance ≈85 Ω ±40% for controlled-impedance PCB trace termination.

It features six unidirectional channels (all inputs on side 1, all outputs on side 2), optimized for signal-level isolation in feedback loops and communication buses. Timing performance is guaranteed across temperature and voltage: propagation delay skew ≤3.0 ns (P-P), pulse width distortion ≤2.5 ns (typ), and minimum pulse width of 6.0 ns - enabling reliable sampling in high-frequency gate drivers and isolated sigma-delta modulators.

Key Specifications

Pinout & Package

SI8463BA-A-IS1R is housed in a RoHS-compliant 16-pin narrow-body SOIC package (5.3 mm width, JEDEC MS-013AC), with creepage and clearance ≥3.9 mm and internal isolation barrier rated for 2500 VRMS.

Key Features

Applications

Equivalent & Alternatives

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

Compared with ADUM141DARZ and ISO6760DR, the SI8463BA-A-IS1R uniquely delivers six 150 Mbps channels in a standard SOIC-16 with lowest power-per-channel at high data rates and industry-leading 0.5 ns channel skew - making it optimal for space-constrained, timing-critical motor control and isolated ADC systems.

Availability

SI8463BA-A-IS1R is available at Aetrix Electronics and suitable for industrial motor drives, isolated switch-mode power supplies, and hybrid electric vehicle battery management systems requiring stable component supply and long-term lifecycle support.

Supply support for SI8463BA-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 Si84xx family was designed specifically for high-reliability, high-speed digital isolation in industrial, automotive, and energy infrastructure applications - emphasizing low power, precision timing, and regulatory-certified safety barriers.

FAQ

What is the maximum data rate supported by the SI8463BA-A-IS1R?

The SI8463BA-A-IS1R supports a maximum data rate of 150 Mbps, verified across the full operating temperature range (–40 °C to +125 °C) and supply voltage range (2.70–5.5 V). This specification applies to all six channels simultaneously under 15 pF load conditions, as confirmed in Tables 3–5 of the Skyworks datasheet Rev. 1.6.

Does the SI8463BA-A-IS1R require external startup initialization?

No, the SI8463BA-A-IS1R does not require external startup initialization. It begins transmitting valid data within 40 µs of power application (tSU ≤ 40 µs), with no firmware or configuration overhead. This zero-initialization behavior is inherent to its capacitive isolation architecture and is explicitly stated in the Features section of the datasheet.

What safety certifications apply to the SI8463BA-A-IS1R?

The SI8463BA-A-IS1R is certified to UL 1577 (2500 VRMS, File E257455), CSA Component Notice 5A (IEC 60950-1/61010-1), and VDE 0884-2 (IEC 60747-5-2). These approvals cover reinforced insulation up to 2500 VRMS for 1 minute, with production testing performed at 3000 VRMS for 1 second per Table 6 and Note *.

How many isolation channels does the SI8463BA-A-IS1R provide, and what is their directionality?

The SI8463BA-A-IS1R provides six unidirectional isolation channels: IN1–IN6 on the primary side (VDD1/GND1 domain) and OUT1–OUT6 on the secondary side (VDD2/GND2 domain). This fixed 6×1 configuration is defined in the Functional Description (Section 2.3) and Pin Descriptions (Section 4) of the datasheet.

What is the typical supply current consumption of the SI8463BA-A-IS1R at 100 Mbps and 5 V?

At 100 Mbps and 5 V supply, the SI8463BA-A-IS1R draws 17.2 mA on VDD1 and 17.2 mA on VDD2 (total 34.4 mA), as specified in Table 3 under "100 Mbps Supply Current" for Si8463Bx devices. This value is measured with all inputs driven at 50 MHz square wave and 15 pF load on all outputs.