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The SI8235BB-D-ISR is a dual-channel isolated gate driver in a 16-SOIC package (7.50mm wide), designed for high-power switching applications such as photovoltaic inverters, motor drives, and industrial power supplies. The device is based on capacitive coupling isolation technology, providing a 2500Vrms isolation voltage, supporting a peak output current of 4A, and compliant with AEC-Q100 automotive-grade certification, making it suitable for harsh industrial and automotive electronic environments.

SI8235BB-D-ISR Core Features

High Isolation Performance

2500Vrms isolation voltage, compliant with UL1577, VDE, CQC, and CSA certifications.

Common-Mode Transient Immunity (CMTI) ≥20kV/µs, providing strong resistance to electromagnetic interference.

High-Speed Switching Drive

Peak output current of 4A, capable of driving power devices such as MOSFETs/IGBTs.  

Propagation delay ≤60ns, rise/fall time 12ns (typical), suitable for high-frequency switching applications.

Wide operating voltage range  

Output supply voltage 9.4V~24V, compatible with various power supply designs.  

Supports 2A (high side) and 4A (low side) output current, flexibly adapting to different drive requirements.

Industrial-grade reliability

Operating temperature range: -40°C to +125°C, suitable for harsh environments.

AEC-Q100 certified, suitable for automotive electronics applications.

Low power consumption & high integration

Capacitive coupling technology, longer lifespan compared to optocoupler drivers (no LED ageing issues).

Integrated under-voltage lockout (UVLO) protection, enhancing system stability.

SI8235BB-D-ISR Key Parameters

Isolation voltage: 2500 Vrms

Peak output current: 4 A

Propagation delay (maximum): 60 ns (tpLH/tpHL)

Rise/fall time: 12 ns (typical)

Supply voltage range: 9.4 V to 24 V

Operating temperature: -40°C to +125°C

Package: 16-SOIC (7.50mm width)

SI8235BB-D-ISR Typical Applications

Electric vehicle main drive inverters / OBC / DC-DC

Photovoltaic inverters & energy storage converters

Industrial servo, UPS, motor controllers

High-power LED drivers, switching power supplies

Battery management (BMS) high-side switch drivers

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