Skyworks Solutions Inc. SI8463BB-A-IS1R

Overview

SI8463BB-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, <1.5 ns pulse width distortion, and 0.5 ns channel-to-channel skew - deployed in isolated ADC interfaces and motor control gate drivers requiring high-speed signal integrity across reinforced insulation barriers.

For engineers reviewing the SI8463BB-A-IS1R datasheet, SI8463BB-A-IS1R pinout, SI8463BB-A-IS1R application, or SI8463BB-A-IS1R equivalent, this page delivers verified timing specs, isolation safety certifications (UL 1577, VDE 0884-2, CSA 5A), supply current behavior at 2.7–5.5 V, and real-world design meaning for industrial automation and hybrid electric vehicle subsystems.

Technical Context

The SI8463BB-A-IS1R implements capacitive isolation with on-chip RF modulation/demodulation circuitry, enabling DC-to-150 Mbps operation without start-up initialization. Its dual-die architecture separates input and output domains with galvanic isolation rated to 2500 VRMS for 1 minute.

All six channels operate independently with matched timing: propagation delay skew ≤3.0 ns (P-P), channel-channel skew ≤1.8 ns, and minimum pulse width of 6.0 ns at 5 V - ensuring deterministic signal transfer in time-critical feedback loops like IGBT gate drive monitoring and isolated current sensing.

Key Specifications

Pinout & Package

SI8463BB-A-IS1R is housed in a 16-pin narrow-body SOIC package (7.5 mm × 10.3 mm, 1.27 mm pitch) with creepage and clearance ≥3.9 mm, qualified for reinforced insulation per IEC 60747-5-2 and UL 1577.

Key Features

Applications

Equivalent & Alternatives

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

Compared with ADUM4160BRIZ and ISO6763DWR, SI8463BB-A-IS1R uniquely delivers six-channel 150 Mbps operation with sub-2 ns skew and 17.2 mA power at 100 Mbps - making it the only option for time-synchronized, high-bandwidth isolation in next-generation motor drives and battery management systems.

Availability

SI8463BB-A-IS1R is available at Aetrix Electronics and suitable for industrial motor control, hybrid electric vehicle battery management, and isolated data acquisition requiring stable component supply and long-term lifecycle support.

Supply support for SI8463BB-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 - replacing optocouplers with robust, low-power, and temperature-stable alternatives.

FAQ

What is the maximum data rate supported by SI8463BB-A-IS1R?

The SI8463BB-A-IS1R supports a maximum data rate of 150 Mbps under specified operating conditions (VDD = 5 V, TA = –40 °C to +125 °C). This is confirmed in Table 3's "Timing Characteristics" section for Si846xBx variants, where SI8463BB-A-IS1R is explicitly designated as a "B" speed grade device. The 150 Mbps capability enables use in high-speed serial interfaces such as isolated SPI and encoder feedback links.

Does SI8463BB-A-IS1R require external components for startup or biasing?

No, SI8463BB-A-IS1R requires no start-up initialization and operates immediately upon power application - valid output is guaranteed within 40 µs (tSU). Only 0.1 µF bypass capacitors on VDD1 and VDD2 are required per the datasheet's "Features" section and layout recommendations. No external resistors, pull-ups, or configuration pins are needed, simplifying schematic design and reducing BOM count.

What safety certifications apply to SI8463BB-A-IS1R?

SI8463BB-A-IS1R is certified to UL 1577 (2500 VRMS, 1 min), VDE 0884-2 (IEC 60747-5-2), and CSA Component Notice 5A (IEC 61010-1, 60950-1). These certifications cover reinforced insulation for working voltages up to 300 VRMS and are production-tested to 3000 VRMS for 1 second per Table 6. Certification files are E257455 (UL), 5006301-4880-0001 (VDE), and 232873 (CSA).

How does SI8463BB-A-IS1R handle supply voltage mismatch between sides?

SI8463BB-A-IS1R supports independent 2.70–5.5 V supplies on VDD1 and VDD2, allowing asymmetric operation - for example, 3.3 V on the input side and 5 V on the output side. Electrical characteristics in Tables 3–5 confirm functionality across all combinations, including propagation delay and current consumption data at 2.7 V, 3.3 V, and 5 V on each side. This enables flexible integration with mixed-voltage systems without level-shifting circuitry.

What is the channel configuration of SI8463BB-A-IS1R?

SI8463BB-A-IS1R provides six unidirectional digital isolation channels in a fixed 3+3 configuration: IN1–IN3/OUT1–OUT3 form one directional group, and IN4–IN6/OUT4–OUT6 form the second. Pin mapping is defined in Section 4 ("Pin Descriptions") of the datasheet, and the device does not support configurable directionality or bidirectional channels. All six channels share identical timing and electrical specs.