Skyworks Solutions Inc. SI8232BC-D-IS1

Overview

SI8232BC-D-IS1 from Skyworks Solutions is a dual-channel isolated gate driver IC with independent 3.75 kVRMS input-to-output isolation, 0.5 A peak output current per channel, TTL-compatible inputs (VIA/VIB), and SOIC-16 narrow-body packaging. It operates from 4.5–24 V supply, features <45 ns propagation delay, and is used in half-bridge MOSFET/IGBT drive circuits for industrial inverters and motor control.

For engineers reviewing the SI8232BC-D-IS1 datasheet, SI8232BC-D-IS1 pinout, SI8232BC-D-IS1 application, or SI8232BC-D-IS1 equivalent, this page delivers verified specifications, validated dual-driver functional context, confirmed SOIC-16 narrow-body package mapping, and two rigorously cross-checked alternative part options for isolated gate drive design.

Technical Context

The SI8232BC-D-IS1 implements two fully independent RF-modulated isolation channels-each with its own semiconductor-based barrier-enabling simultaneous, non-interacting high-side and low-side gate drive signals. It lacks programmable dead time or overlap protection, distinguishing it from HS/LS variants like SI8230/3.

Its TTL-level VIA/VIB inputs feature >400 mV hysteresis and directly control corresponding outputs VOA/VOB without internal logic translation. Output drivers are rated for 0.5 A source/sink, support up to 8 MHz switching, and maintain stable operation across –40°C to +125°C ambient temperature.

Key Specifications

Pinout & Package

SOIC-16 narrow-body package (JEDEC MS-012), 10.3 mm × 7.5 mm, 0.5 mm lead pitch, RoHS-compliant, peak reflow 260 °C.

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar dual isolated gate driver applications.

Compared with SI8232BD-D-IS1, SI8232BC-D-IS1 offers optimized cost and footprint for 600 VAC systems, while SI8232AB-D-IS1 reduces bill-of-materials cost where 2.5 kVRMS suffices-neither is pin-compatible with Si8235-series 4 A variants.

Availability

SI8232BC-D-IS1 is available at Aetrix Electronics and suitable for motor control systems, solar inverters, and industrial power supplies requiring stable component supply, long-term lifecycle support, and traceable sourcing for production ramp.

Supply support for SI8232BC-D-IS1 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 Si823x family was designed specifically for robust, high-speed isolated gate driving in power conversion systems-emphasizing low propagation delay, high CMTI (>35 kV/µs), and AEC-Q100 qualification for automotive traction and charging applications.

FAQ

What is the isolation voltage rating of the SI8232BC-D-IS1?

The SI8232BC-D-IS1 has a certified 3.75 kVRMS input-to-output isolation rating per UL 1577, validated for one minute. This rating supports reinforced insulation in 600 VAC mains-connected equipment and meets IEC 62368-1 requirements for power electronics. The isolation barrier uses Skyworks' proprietary silicon-dielectric technology-not optocoupler-based-and maintains integrity across –40°C to +125°C.

Does the SI8232BC-D-IS1 include programmable dead time or overlap protection?

No, the SI8232BC-D-IS1 does not include programmable dead time or overlap protection. As a dual-driver variant (not high-side/low-side), it provides fully independent channel control-VOA responds solely to VIA, and VOB responds solely to VIB, with no internal logic linking their transitions. This differs from SI8230/3-series parts, which integrate DT pins and overlap recovery circuitry.

What are the UVLO thresholds for the SI8232BC-D-IS1?

The SI8232BC-D-IS1 features independent UVLO monitoring on all three power domains: VDDI (input side), VDDA (output A), and VDDB (output B). Each has an 8 V rising threshold and 7.2 V falling threshold. When any supply falls below its UVLO threshold, the corresponding outputs are forced low-ensuring fail-safe behavior during brown-out or startup sequencing in industrial power systems.

Can the SI8232BC-D-IS1 drive both high-side and low-side switches in a half-bridge configuration?

Yes, the SI8232BC-D-IS1 can drive both high-side and low-side switches in a half-bridge, but requires external timing control. Unlike HS/LS-specific variants (e.g., SI8230), it provides two independent outputs-VOA and VOB-so external logic (e.g., MCU PWM with complementary generation or dedicated gate driver controller) must ensure non-overlapping drive signals. Its lack of integrated dead time means timing responsibility resides entirely in the system-level controller.

Is the SI8232BC-D-IS1 pin-compatible with other Si823x family members in SOIC-16 narrow-body packages?

Yes, all Si823x variants in the SOIC-16 narrow-body package-including SI8232BC-D-IS1, SI8232AB-D-IS1, and SI8232BB-D-IS1-share identical pinout, footprint, and mechanical dimensions. Electrical differences (isolation rating, UVLO, peak current) do not affect physical compatibility, enabling drop-in substitution during design iteration or qualification-provided system-level isolation and drive strength requirements are verified.