Skyworks Solutions Inc. SI8236AA-C-IMR

Overview

SI8236AA-C-IMR from Silicon Laboratories is a dual-channel isolated gate driver with 4.0 A peak output current per channel, 5 kVRMS input-to-output isolation (wide-body SOIC-16), 60 ns max propagation delay, and programmable dead time control. It operates across –40 to +125 °C and supports isolated MOSFET/IGBT drive in high-reliability power conversion systems.

For engineers reviewing the SI8236AA-C-IMR datasheet, SI8236AA-C-IMR pinout, SI8236AA-C-IMR application, or SI8236AA-C-IMR equivalent, key selection criteria include its dual-driver topology (no HS/LS overlap logic), 4.0 A sink/source capability, 5 kVRMS reinforced insulation rating, thermal pad LGA-14 package variant, and compatibility with 12–24 V driver supplies in industrial inverters and motor drives.

Technical Context

The SI8236AA-C-IMR implements two independent RF-modulated isolation channels using Silicon Labs' proprietary silicon-dielectric barrier, enabling simultaneous high-speed signal transfer without optical coupling or transformer windings. Each channel features TTL-compatible inputs with 400 mV hysteresis and supports separate ground references for input and output domains.

It lacks built-in overlap protection or PWM-input logic-unlike Si8230/1/3/4-because it belongs to the dual-driver subgroup (Si8235/6/8) with direct input-to-output mapping. Dead time is externally programmable via resistor on DT pin, with range from 70 ns to 900 ns, and UVLO thresholds are configurable at 5/8/10/12.5 V on VDDA/VDDB.

Key Specifications

Pinout & Package

SI8236AA-C-IMR is housed in a 16-pin wide-body SOIC package (WBSOIC-16) with 1.27 mm pitch, 10.3 mm body width, and 2.65 mm height. The package provides 5 kVRMS isolation and meets UL, VDE, CSA, and CQC safety certifications for reinforced insulation.

Key Features

Applications

Equivalent & Alternatives

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

Compared with ADUM4223BRIZ and UCC21520CDWR, SI8236AA-C-IMR uniquely supports fully independent dual-channel operation with programmable dead time-making it optimal for multi-phase resonant converters and custom gate timing architectures where channel autonomy is required.

Availability

SI8236AA-C-IMR is available at Aetrix Electronics and suitable for motor control systems, solar inverters, industrial DC-DC converters, and plasma display drivers requiring stable component supply, long-term lifecycle support, and certified reinforced isolation.

Supply support for SI8236AA-C-IMR 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

Silicon Laboratories is a fabless semiconductor company specializing in timing, isolation, and wireless technologies for industrial, automotive, and consumer applications.

The Si823x product line delivers high-speed, high-isolation gate drivers optimized for reliability-critical power conversion systems-including EV chargers, renewable energy inverters, and factory automation drives-where safety certification and thermal resilience are mandatory.

FAQ

What is the isolation voltage rating of the SI8236AA-C-IMR?

The SI8236AA-C-IMR is rated for 5 kVRMS input-to-output isolation per UL1577 (1 minute test), validated for reinforced insulation under IEC 60950-1, IEC 60601-1, and VDE 0884-5 standards. This rating applies specifically to the wide-body SOIC-16 package variant denoted by the "-IMR" suffix, which achieves 8.0 mm creepage and clearance.

Does the SI8236AA-C-IMR support programmable dead time?

Yes, the SI8236AA-C-IMR supports externally programmable dead time via a resistor connected to the DT pin. The dead time range is adjustable from 70 ns to 900 ns, with typical values of 900 ns at R_DT = 100 kΩ and 70 ns at R_DT = 6 kΩ. This feature is implemented in hardware and does not require configuration registers or firmware.

What is the peak output current capability of the SI8236AA-C-IMR?

The SI8236AA-C-IMR delivers 4.0 A peak sink current and 2.0 A peak source current per channel, as specified in Table 1 of the datasheet under "Output Short-Circuit Pulsed Sink/Source Current." These values are measured at VDDA/VDDB = 12–15 V and are valid across the full –40 to +125 °C operating temperature range.

Can the SI8236AA-C-IMR be used in automotive applications?

Yes, the SI8236AA-C-IMR is AEC-Q100 qualified (Grade 1, –40 to +125 °C) and certified to IEC 60601-1 for medical-grade reinforced insulation. It is deployed in automotive auxiliary power modules, on-board chargers, and 48 V mild-hybrid DC-DC converters where high CMTI (>45 kV/µs) and long-term reliability are required.

What package type does the SI8236AA-C-IMR use?

The SI8236AA-C-IMR uses a 16-pin wide-body SOIC (WBSOIC-16) package with 1.27 mm pitch, 10.3 mm body width, and 2.65 mm height. This package is distinct from narrow-body SOIC or LGA variants and is explicitly designated by the "-IMR" suffix in the part number per Silicon Labs' ordering guide.